Fix remaining -m<module> patterns in Python code and scripts for consistency

Co-authored-by: malfet <2453524+malfet@users.noreply.github.com>

.ci/docker/almalinux/Dockerfile

@@ -20,7 +20,7 @@ ENV PATH=/opt/rh/gcc-toolset-${DEVTOOLSET_VERSION}/root/usr/bin:$PATH
 
 # cmake-3.18.4 from pip
 RUN yum install -y python3-pip && \
-    python3 -mpip install cmake==3.18.4 && \
+    python3 -m pip install cmake==3.18.4 && \
     ln -s /usr/local/bin/cmake /usr/bin/cmake3
 RUN rm -rf /usr/local/cuda-*
 

.ci/docker/build.sh

@@ -113,6 +113,7 @@ case "$tag" in
     UCX_COMMIT=${_UCX_COMMIT}
     UCC_COMMIT=${_UCC_COMMIT}
     TRITON=yes
+    INSTALL_MINGW=yes
     ;;
   pytorch-linux-jammy-cuda13.0-cudnn9-py3-gcc11)
     CUDA_VERSION=13.0.0
@@ -361,6 +362,7 @@ docker build \
        --build-arg "OPENBLAS=${OPENBLAS:-}" \
        --build-arg "SKIP_SCCACHE_INSTALL=${SKIP_SCCACHE_INSTALL:-}" \
        --build-arg "SKIP_LLVM_SRC_BUILD_INSTALL=${SKIP_LLVM_SRC_BUILD_INSTALL:-}" \
+       --build-arg "INSTALL_MINGW=${INSTALL_MINGW:-}" \
        -f $(dirname ${DOCKERFILE})/Dockerfile \
        -t "$tmp_tag" \
        "$@" \

.ci/docker/common/install_inductor_benchmark_deps.sh

@@ -25,7 +25,7 @@ function install_torchbench() {
   python install.py --continue_on_fail
 
   echo "Print all dependencies after TorchBench is installed"
-  python -mpip freeze
+  python -m pip freeze
   popd
 
   chown -R jenkins torchbench

.ci/docker/common/install_mingw.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+set -ex
+
+# Install MinGW-w64 for Windows cross-compilation
+apt-get update
+apt-get install -y g++-mingw-w64-x86-64-posix
+
+echo "MinGW-w64 installed successfully"
+x86_64-w64-mingw32-g++ --version

.ci/docker/common/install_mkl.sh

@@ -8,8 +8,8 @@ MKLROOT=/opt/intel
 mkdir -p ${MKLROOT}
 pushd /tmp
 
-python3 -mpip install wheel
+python3 -m pip install wheel
-python3 -mpip download -d . mkl-static==${MKL_VERSION}
+python3 -m pip download -d . mkl-static==${MKL_VERSION}
 python3 -m wheel unpack mkl_static-${MKL_VERSION}-py2.py3-none-manylinux1_x86_64.whl
 python3 -m wheel unpack mkl_include-${MKL_VERSION}-py2.py3-none-manylinux1_x86_64.whl
 mv mkl_static-${MKL_VERSION}/mkl_static-${MKL_VERSION}.data/data/lib ${MKLROOT}

.ci/docker/common/install_onnx.sh

@@ -20,7 +20,7 @@ pip_install \
 
 pip_install coloredlogs packaging
 pip_install onnxruntime==1.23.0
-pip_install onnxscript==0.5.3
+pip_install onnxscript==0.5.4
 
 # Cache the transformers model to be used later by ONNX tests. We need to run the transformers
 # package to download the model. By default, the model is cached at ~/.cache/huggingface/hub/

.ci/docker/common/install_python.sh

@@ -11,5 +11,5 @@ ln -s /usr/bin/python${PYTHON_VERSION} /usr/bin/python
 python -m venv /var/lib/jenkins/ci_env
 source /var/lib/jenkins/ci_env/bin/activate
 
-python -mpip install --upgrade pip
+python -m pip install --upgrade pip
-python -mpip install -r /opt/requirements-ci.txt
+python -m pip install -r /opt/requirements-ci.txt

.ci/docker/manywheel/Dockerfile_2_28

@@ -14,7 +14,7 @@ ENV LD_LIBRARY_PATH=/opt/rh/gcc-toolset-${DEVTOOLSET_VERSION}/root/usr/lib64:/op
 
 # cmake-3.18.4 from pip
 RUN yum install -y python3-pip && \
-    python3 -mpip install cmake==3.18.4 && \
+    python3 -m pip install cmake==3.18.4 && \
     ln -s /usr/local/bin/cmake /usr/bin/cmake3
 
 FROM base as openssl
@@ -135,7 +135,7 @@ RUN bash ./patch_libstdc.sh && rm patch_libstdc.sh
 
 # cmake-3.18.4 from pip; force in case cmake3 already exists
 RUN yum install -y python3-pip && \
-    python3 -mpip install cmake==3.18.4 && \
+    python3 -m pip install cmake==3.18.4 && \
     ln -sf /usr/local/bin/cmake /usr/bin/cmake3
 
 FROM cpu_final as cuda_final
@@ -157,7 +157,7 @@ ENV ROCM_PATH /opt/rocm
 # cmake-3.28.4 from pip to get enable_language(HIP)
 # and avoid 3.21.0 cmake+ninja issues with ninja inserting "-Wl,--no-as-needed" in LINK_FLAGS for static linker
 RUN python3 -m pip install --upgrade pip && \
-    python3 -mpip install cmake==3.28.4
+    python3 -m pip install cmake==3.28.4
 # replace the libdrm in /opt/amdgpu with custom amdgpu.ids lookup path
 ADD ./common/install_rocm_drm.sh install_rocm_drm.sh
 RUN bash ./install_rocm_drm.sh && rm install_rocm_drm.sh
@@ -174,7 +174,7 @@ FROM cpu_final as xpu_final
 ENV XPU_DRIVER_TYPE ROLLING
 # cmake-3.28.4 from pip
 RUN python3 -m pip install --upgrade pip && \
-    python3 -mpip install cmake==3.28.4
+    python3 -m pip install cmake==3.28.4
 ADD ./common/install_xpu.sh install_xpu.sh
 ENV XPU_VERSION 2025.2
 RUN bash ./install_xpu.sh && rm install_xpu.sh

.ci/docker/manywheel/Dockerfile_s390x

@@ -113,7 +113,7 @@ RUN dnf install -y \
 RUN env GRPC_PYTHON_BUILD_SYSTEM_OPENSSL=True pip3 install grpcio
 
 # cmake-3.28.0 from pip for onnxruntime
-RUN python3 -mpip install cmake==3.28.0
+RUN python3 -m pip install cmake==3.28.0
 
 ADD ./common/patch_libstdc.sh patch_libstdc.sh
 RUN bash ./patch_libstdc.sh && rm patch_libstdc.sh

.ci/docker/ubuntu/Dockerfile

@@ -103,6 +103,11 @@ COPY ci_commit_pins/torchbench.txt torchbench.txt
 RUN if [ -n "${INDUCTOR_BENCHMARKS}" ]; then bash ./install_inductor_benchmark_deps.sh; fi
 RUN rm install_inductor_benchmark_deps.sh common_utils.sh timm.txt huggingface-requirements.txt torchbench.txt
 
+ARG INSTALL_MINGW
+COPY ./common/install_mingw.sh install_mingw.sh
+RUN if [ -n "${INSTALL_MINGW}" ]; then bash ./install_mingw.sh; fi
+RUN rm install_mingw.sh
+
 ARG TRITON
 ARG TRITON_CPU
 

.ci/manywheel/build_cuda.sh

@@ -187,19 +187,22 @@ if [[ $CUDA_VERSION == 12* || $CUDA_VERSION == 13* ]]; then
             export USE_CUFILE=0
         else
             DEPS_LIST+=(
-                "/usr/local/cuda/lib64/libnvToolsExt.so.1"
                 "/usr/local/cuda/lib64/libcublas.so.12"
                 "/usr/local/cuda/lib64/libcublasLt.so.12"
                 "/usr/local/cuda/lib64/libcudart.so.12"
                 "/usr/local/cuda/lib64/libnvrtc.so.12"
                 "/usr/local/cuda/extras/CUPTI/lib64/libcupti.so.12")
             DEPS_SONAME+=(
-                "libnvToolsExt.so.1"
                 "libcublas.so.12"
                 "libcublasLt.so.12"
                 "libcudart.so.12"
                 "libnvrtc.so.12"
                 "libcupti.so.12")
+
+            if [[ $CUDA_VERSION != 12.9* ]]; then
+                DEPS_LIST+=("/usr/local/cuda/lib64/libnvToolsExt.so.1")
+                DEPS_SONAME+=("libnvToolsExt.so.1")
+            fi
         fi
     else
         echo "Using nvidia libs from pypi."

.ci/pytorch/build.sh

@@ -288,7 +288,7 @@ else
     # or building non-XLA tests.
     if [[ "$BUILD_ENVIRONMENT" != *rocm*  && "$BUILD_ENVIRONMENT" != *xla* && "$BUILD_ENVIRONMENT" != *riscv64* ]]; then
       # Install numpy-2.0.2 for builds which are backward compatible with 1.X
-      python -mpip install numpy==2.0.2
+      python -m pip install numpy==2.0.2
 
       WERROR=1 python setup.py clean
 

.ci/pytorch/common_utils.sh

@@ -67,13 +67,13 @@ function pip_install_whl() {
     # Loop through each path and install individually
     for path in "${paths[@]}"; do
       echo "Installing $path"
-      python3 -mpip install --no-index --no-deps "$path"
+      python3 -m pip install --no-index --no-deps "$path"
     done
   else
     # Loop through each argument and install individually
     for path in "${args[@]}"; do
       echo "Installing $path"
-      python3 -mpip install --no-index --no-deps "$path"
+      python3 -m pip install --no-index --no-deps "$path"
     done
   fi
 }

.ci/pytorch/macos-test.sh

@@ -182,7 +182,7 @@ checkout_install_torchbench() {
   pip uninstall -y torchao
 
   echo "Print all dependencies after TorchBench is installed"
-  python -mpip freeze
+  python -m pip freeze
 }
 
 torchbench_setup_macos() {
@@ -211,7 +211,7 @@ torchbench_setup_macos() {
 }
 
 pip_benchmark_deps() {
-  python -mpip install --no-input requests cython scikit-learn six
+  python -m pip install --no-input requests cython scikit-learn six
 }
 
 

.ci/pytorch/test.sh

@@ -485,6 +485,22 @@ test_inductor_aoti() {
   /usr/bin/env "${TEST_ENVS[@]}" python test/run_test.py --cpp --verbose -i cpp/test_aoti_abi_check cpp/test_aoti_inference cpp/test_vec_half_AVX2 -dist=loadfile
 }
 
+test_inductor_aoti_cross_compile_for_windows() {
+
+  TEST_REPORTS_DIR=$(pwd)/test/test-reports
+  mkdir -p "$TEST_REPORTS_DIR"
+
+  # Set WINDOWS_CUDA_HOME environment variable
+  WINDOWS_CUDA_HOME="$(pwd)/win-torch-wheel-extracted"
+  export WINDOWS_CUDA_HOME
+
+  echo "WINDOWS_CUDA_HOME is set to: $WINDOWS_CUDA_HOME"
+  echo "Contents:"
+  ls -lah "$(pwd)/win-torch-wheel-extracted/lib/x64/" || true
+
+  python test/inductor/test_aoti_cross_compile_windows.py -k compile --package-dir "$TEST_REPORTS_DIR" --win-torch-lib-dir "$(pwd)/win-torch-wheel-extracted/torch/lib"
+}
+
 test_inductor_cpp_wrapper_shard() {
   if [[ -z "$NUM_TEST_SHARDS" ]]; then
     echo "NUM_TEST_SHARDS must be defined to run a Python test shard"
@@ -900,7 +916,7 @@ test_inductor_set_cpu_affinity(){
   export LD_PRELOAD="$JEMALLOC_LIB":"$LD_PRELOAD"
   export MALLOC_CONF="oversize_threshold:1,background_thread:true,metadata_thp:auto,dirty_decay_ms:-1,muzzy_decay_ms:-1"
 
-  if [[ "${TEST_CONFIG}" != *aarch64* ]]; then
+  if [[ "$(uname -m)" != "aarch64" ]]; then
     # Use Intel OpenMP for x86
     IOMP_LIB="$(dirname "$(which python)")/../lib/libiomp5.so"
     export LD_PRELOAD="$IOMP_LIB":"$LD_PRELOAD"
@@ -914,7 +930,7 @@ test_inductor_set_cpu_affinity(){
   cores=$((cpus / thread_per_core))
 
   # Set number of cores to 16 on aarch64 for performance runs
-  if [[ "${TEST_CONFIG}" == *aarch64* && $cores -gt 16 ]]; then
+  if [[ "$(uname -m)" == "aarch64" && $cores -gt 16 ]]; then
     cores=16
   fi
   export OMP_NUM_THREADS=$cores
@@ -1418,7 +1434,7 @@ EOF
   # shellcheck source=./common-build.sh
   source "$(dirname "${BASH_SOURCE[0]}")/common-build.sh"
   python -m build --wheel --no-isolation -C--build-option=--bdist-dir="base_bdist_tmp" --outdir "base_dist"
-  python -mpip install base_dist/*.whl
+  python -m pip install base_dist/*.whl
   echo "::endgroup::"
 
   pushd test/forward_backward_compatibility
@@ -1615,6 +1631,7 @@ test_operator_benchmark() {
   TEST_REPORTS_DIR=$(pwd)/test/test-reports
   mkdir -p "$TEST_REPORTS_DIR"
   TEST_DIR=$(pwd)
+  ARCH=$(uname -m)
 
   test_inductor_set_cpu_affinity
 
@@ -1629,7 +1646,7 @@ test_operator_benchmark() {
   pip_install pandas
   python check_perf_csv.py \
       --actual "${TEST_REPORTS_DIR}/operator_benchmark_eager_float32_cpu.csv" \
-      --expected "expected_ci_operator_benchmark_eager_float32_cpu.csv"
+      --expected "${ARCH}_expected_ci_operator_benchmark_eager_float32_cpu.csv"
 }
 
 test_operator_microbenchmark() {
@@ -1666,7 +1683,7 @@ if [[ "${TEST_CONFIG}" == *numpy_2* ]]; then
     python -m pip install --pre numpy==2.0.2 scipy==1.13.1 numba==0.60.0
   fi
   python test/run_test.py --include dynamo/test_functions.py dynamo/test_unspec.py test_binary_ufuncs.py test_fake_tensor.py test_linalg.py test_numpy_interop.py test_tensor_creation_ops.py test_torch.py torch_np/test_basic.py
-elif [[ "${BUILD_ENVIRONMENT}" == *aarch64* && "${TEST_CONFIG}" != *perf_cpu_aarch64* ]]; then
+elif [[ "${BUILD_ENVIRONMENT}" == *aarch64* && "${TEST_CONFIG}" == 'default' ]]; then
   test_linux_aarch64
 elif [[ "${TEST_CONFIG}" == *backward* ]]; then
   test_forward_backward_compatibility
@@ -1717,6 +1734,8 @@ elif [[ "${TEST_CONFIG}" == *inductor-triton-cpu* ]]; then
   test_inductor_triton_cpu
 elif [[ "${TEST_CONFIG}" == *inductor-micro-benchmark* ]]; then
   test_inductor_micro_benchmark
+elif [[ "${TEST_CONFIG}" == *aoti_cross_compile_for_windows* ]]; then
+  test_inductor_aoti_cross_compile_for_windows
 elif [[ "${TEST_CONFIG}" == *huggingface* ]]; then
   install_torchvision
   id=$((SHARD_NUMBER-1))

.ci/wheel/build_wheel.sh

@@ -173,7 +173,7 @@ esac
 PINNED_PACKAGES=(
     "numpy${NUMPY_PINNED_VERSION}"
 )
-python -mvenv ~/${desired_python}-build
+python -m venv ~/${desired_python}-build
 source ~/${desired_python}-build/bin/activate
 retry pip install "${PINNED_PACKAGES[@]}" -r "${pytorch_rootdir}/requirements.txt"
 retry brew install libomp

.github/ISSUE_TEMPLATE/ci-sev.md

@@ -8,6 +8,7 @@ assignees: ''
 ---
 
 > NOTE: Remember to label this issue with "`ci: sev`"
+>       If you want autorevert to be disabled, keep the ci: disable-autorevert label
 
  <!-- Add the `merge blocking` label to this PR to prevent PRs from being merged while this issue is open -->
 

.github/ISSUE_TEMPLATE/disable-autorevert.md

@@ -1,7 +1,7 @@
 ---
-name: DISABLE AUTOREVERT
+name: "D❌​\U0001F519​ ISABLE AUTOREVERT"
 about: Disables autorevert when open
-title: "❌​\U0001F519​ [DISABLE AUTOREVERT]"
+title: "[DISABLE AUTOREVERT]"
 labels: 'ci: disable-autorevert'
 assignees: ''
 

.github/actions/build-external-packages/action.yml

@@ -65,7 +65,7 @@ runs:
           cd .ci/lumen_cli
           python3 -m pip install -e .
         )
-        MAX_JOBS="$(nproc --ignore=6)"
+        MAX_JOBS="$(nproc --ignore=10)"
         export MAX_JOBS
 
         # Split the comma-separated list and build each target

.github/ci_commit_pins/audio.txt

@@ -1 +1 @@
-8ad2aa5d354d1bf432339113860185d5a5d1abbd
+1b013f5b5a87a1882eb143c26d79d091150d6a37

.github/ci_commit_pins/vision.txt

@@ -1 +1 @@
-f5c6c2ec6490455e86f67b2a25c10390d60a27f7
+faffd5cf673615583da6517275e361cb3dbc77e6

.github/pytorch-probot.yml

@@ -3,6 +3,7 @@ ciflow_tracking_issue: 64124
 ciflow_push_tags:
 - ciflow/b200
 - ciflow/b200-symm-mem
+- ciflow/b200-distributed
 - ciflow/binaries
 - ciflow/binaries_libtorch
 - ciflow/binaries_wheel
@@ -15,7 +16,8 @@ ciflow_push_tags:
 - ciflow/inductor-micro-benchmark
 - ciflow/inductor-micro-benchmark-cpu-x86
 - ciflow/inductor-perf-compare
-- ciflow/inductor-perf-test-nightly-rocm
+- ciflow/inductor-perf-test-nightly-rocm-mi300
+- ciflow/inductor-perf-test-nightly-rocm-mi355
 - ciflow/inductor-perf-test-nightly-x86-zen
 - ciflow/inductor-periodic
 - ciflow/inductor-rocm

.github/scripts/generate_binary_build_matrix.py

@@ -241,7 +241,11 @@ def generate_libtorch_matrix(
             arches += CUDA_ARCHES
             arches += ROCM_ARCHES
         elif os == "windows":
-            arches += CUDA_ARCHES
+            # TODO (huydhn): Only build CUDA 12.9 for Linux. This logic is to be cleaned up
+            # in 2.10
+            windows_cuda_arches = CUDA_ARCHES.copy()
+            windows_cuda_arches.remove("12.9")
+            arches += windows_cuda_arches
     if libtorch_variants is None:
         libtorch_variants = [
             "shared-with-deps",
@@ -305,7 +309,11 @@ def generate_wheels_matrix(
         if os == "linux":
             arches += CUDA_ARCHES + ROCM_ARCHES + XPU_ARCHES
         elif os == "windows":
-            arches += CUDA_ARCHES + XPU_ARCHES
+            # TODO (huydhn): Only build CUDA 12.9 for Linux. This logic is to be cleaned up
+            # in 2.10
+            windows_cuda_arches = CUDA_ARCHES.copy()
+            windows_cuda_arches.remove("12.9")
+            arches += windows_cuda_arches + XPU_ARCHES
         elif os == "linux-aarch64":
             # Separate new if as the CPU type is different and
             # uses different build/test scripts

.github/scripts/prepare_vllm_wheels.sh

@@ -24,7 +24,7 @@ change_wheel_version() {
   local t_version=$4
 
   # Extract the wheel
-  ${PYTHON_EXECUTABLE} -mwheel unpack $wheel
+  ${PYTHON_EXECUTABLE} -m wheel unpack $wheel
 
   mv "${package}-${f_version}" "${package}-${t_version}"
   # Change the version from f_version to t_version in the dist-info dir
@@ -47,7 +47,7 @@ change_wheel_version() {
   popd
 
   # Repack the wheel
-  ${PYTHON_EXECUTABLE} -mwheel pack "${package}-${t_version}"
+  ${PYTHON_EXECUTABLE} -m wheel pack "${package}-${t_version}"
 
   # Clean up
   rm -rf "${package}-${t_version}"
@@ -85,7 +85,7 @@ repackage_wheel() {
 }
 
 # Require to re-package the wheel
-${PYTHON_EXECUTABLE} -mpip install wheel==0.45.1
+${PYTHON_EXECUTABLE} -m pip install wheel==0.45.1
 
 pushd externals/vllm/wheels
 for package in xformers flashinfer-python vllm; do

.github/scripts/trymerge.py

@@ -1092,7 +1092,7 @@ class GitHubPR:
         editor = node["editor"]
         return GitHubComment(
             body_text=node["bodyText"],
-            created_at=node["createdAt"] if "createdAt" in node else "",
+            created_at=node.get("createdAt", ""),
             author_login=node["author"]["login"],
             author_url=node["author"].get("url", None),
             author_association=node["authorAssociation"],

.github/workflows/_linux-build.yml

@@ -37,7 +37,7 @@ on:
       runner:
         required: false
         type: string
-        default: "linux.2xlarge"
+        default: "linux.c7i.2xlarge"
         description: |
           Label of the runner this job should run on.
       test-matrix:

.github/workflows/_linux-test.yml

@@ -224,6 +224,46 @@ jobs:
         continue-on-error: true
         uses: ./.github/actions/download-td-artifacts
 
+      - name: Download Windows torch wheel for cross-compilation
+        if: matrix.win_torch_wheel_artifact != ''
+        uses: seemethere/download-artifact-s3@1da556a7aa0a088e3153970611f6c432d58e80e6 # v4.2.0
+        with:
+          name: ${{ matrix.win_torch_wheel_artifact }}
+          path: win-torch-wheel
+
+      - name: Extract Windows wheel and setup CUDA libraries
+        if: matrix.win_torch_wheel_artifact != ''
+        shell: bash
+        run: |
+          set -x
+
+          # Find the wheel file
+          WHEEL_FILE=$(find win-torch-wheel -name "*.whl" -type f | head -n 1)
+          if [ -z "$WHEEL_FILE" ]; then
+            echo "Error: No wheel file found in win-torch-wheel directory"
+            exit 1
+          fi
+          echo "Found wheel file: $WHEEL_FILE"
+
+          # Unzip the wheel file
+          unzip -q "$WHEEL_FILE" -d win-torch-wheel-extracted
+          echo "Extracted wheel contents"
+
+          # Setup CUDA libraries (cuda.lib and cudart.lib) directory
+          mkdir -p win-torch-wheel-extracted/lib/x64
+          if [ -f "win-torch-wheel/cuda.lib" ]; then
+            mv win-torch-wheel/cuda.lib win-torch-wheel-extracted/lib/x64/
+            echo "Moved cuda.lib to win-torch-wheel-extracted/lib/x64/"
+          fi
+          if [ -f "win-torch-wheel/cudart.lib" ]; then
+            mv win-torch-wheel/cudart.lib win-torch-wheel-extracted/lib/x64/
+            echo "Moved cudart.lib to win-torch-wheel-extracted/lib/x64/"
+          fi
+
+          # Verify CUDA libraries are present
+          echo "CUDA libraries:"
+          ls -la win-torch-wheel-extracted/lib/x64/ || echo "No CUDA libraries found"
+
       - name: Parse ref
         id: parse-ref
         run: .github/scripts/parse_ref.py

.github/workflows/_mac-test.yml

@@ -211,7 +211,7 @@ jobs:
             $tool --version
           done
 
-          python3 -mpip install --no-index --no-deps dist/*.whl
+          python3 -m pip install --no-index --no-deps dist/*.whl
 
           set +e
           pushd "${RUNNER_TEMP}"
@@ -222,7 +222,7 @@ jobs:
           popd
 
           if [ "${RC}" -ne 0 ]; then
-            python3 -mpip install --ignore-installed -r "${PIP_REQUIREMENTS_FILE}"
+            python3 -m pip install --ignore-installed -r "${PIP_REQUIREMENTS_FILE}"
           fi
           set -e
 

.github/workflows/_win-build.yml

@@ -168,6 +168,31 @@ jobs:
         run: |
           .ci/pytorch/win-build.sh
 
+      # Collect Windows torch libs and CUDA libs for cross-compilation
+      - name: Collect Windows CUDA libs for cross-compilation
+        if: steps.build.outcome != 'skipped' && inputs.cuda-version != 'cpu'
+        shell: bash
+        run: |
+          set -ex
+
+          # Create directory structure if does not exist
+          mkdir -p /c/${{ github.run_id }}/build-results
+
+          # Copy CUDA libs
+          CUDA_PATH="/c/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v${{ inputs.cuda-version }}"
+
+          if [ -f "${CUDA_PATH}/lib/x64/cuda.lib" ]; then
+            cp "${CUDA_PATH}/lib/x64/cuda.lib" /c/${{ github.run_id }}/build-results/
+          fi
+
+          if [ -f "${CUDA_PATH}/lib/x64/cudart.lib" ]; then
+            cp "${CUDA_PATH}/lib/x64/cudart.lib" /c/${{ github.run_id }}/build-results/
+          fi
+
+          # List collected files
+          echo "Collected CUDA libs:"
+          ls -lah /c/${{ github.run_id }}/build-results/*.lib
+
       # Upload to github so that people can click and download artifacts
       - name: Upload artifacts to s3
         if: steps.build.outcome != 'skipped'

.github/workflows/_win-test.yml

@@ -204,7 +204,7 @@ jobs:
         run: |
           pushd "${PYTORCH_FINAL_PACKAGE_DIR}"
           # shellcheck disable=SC2046,SC2102
-          python3 -mpip install $(echo *.whl)[opt-einsum,optree] optree==0.13.0
+          python3 -m pip install $(echo *.whl)[opt-einsum,optree] optree==0.13.0
           popd
 
           .ci/pytorch/win-test.sh

.github/workflows/b200-distributed.yml

@@ -0,0 +1,62 @@
+name: CI for distributed tests on B200
+
+on:
+  pull_request:
+    paths:
+      - .github/workflows/b200-distributed.yml
+  workflow_dispatch:
+  push:
+    tags:
+      - ciflow/b200-distributed/*
+  schedule:
+    - cron: 46 8 * * *  # about 1:46am PDT
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}-${{ github.event_name == 'workflow_dispatch' }}-${{ github.event_name == 'schedule' }}
+  cancel-in-progress: true
+
+permissions:
+  id-token: write
+  contents: read
+
+jobs:
+
+  get-label-type:
+    if: github.repository_owner == 'pytorch'
+    name: get-label-type
+    uses: pytorch/pytorch/.github/workflows/_runner-determinator.yml@main
+    with:
+      triggering_actor: ${{ github.triggering_actor }}
+      issue_owner: ${{ github.event.pull_request.user.login || github.event.issue.user.login }}
+      curr_branch: ${{ github.head_ref || github.ref_name }}
+      curr_ref_type: ${{ github.ref_type }}
+
+  linux-jammy-cuda12_8-py3_10-gcc11-build-distributed-b200:
+    name: linux-jammy-cuda12.8-py3.10-gcc11-build-distributed-b200
+    uses: ./.github/workflows/_linux-build.yml
+    needs: get-label-type
+    with:
+      runner_prefix: "${{ needs.get-label-type.outputs.label-type }}"
+      runner: linux.12xlarge.memory
+      build-environment: linux-jammy-cuda12.8-py3.10-gcc11-distributed-b200
+      docker-image-name: ci-image:pytorch-linux-jammy-cuda12.8-cudnn9-py3-gcc11
+      cuda-arch-list: '10.0'
+      test-matrix: |
+        { include: [
+          { config: "distributed", shard: 1, num_shards: 2, runner: "linux.dgx.b200.8" },
+          { config: "distributed", shard: 2, num_shards: 2, runner: "linux.dgx.b200.8" },
+        ]}
+    secrets: inherit
+
+  linux-jammy-cuda12_8-py3_10-gcc11-test-distributed-b200:
+    name: linux-jammy-cuda12.8-py3.10-gcc11-test-b200
+    uses: ./.github/workflows/_linux-test.yml
+    needs:
+      - linux-jammy-cuda12_8-py3_10-gcc11-build-distributed-b200
+    with:
+      timeout-minutes: 1200
+      build-environment: linux-jammy-cuda12.8-py3.10-gcc11-distributed-b200
+      docker-image: ${{ needs.linux-jammy-cuda12_8-py3_10-gcc11-build-distributed-b200.outputs.docker-image }}
+      test-matrix: ${{ needs.linux-jammy-cuda12_8-py3_10-gcc11-build-distributed-b200.outputs.test-matrix }}
+      aws-role-to-assume: arn:aws:iam::308535385114:role/gha_workflow_s3_and_ecr_read_only
+    secrets: inherit

.github/workflows/build-vllm-wheel.yml

@@ -27,9 +27,8 @@ jobs:
       fail-fast: false
       matrix:
         python-version: [ '3.12' ]
-        # TODO (huydhn): Add cu130 after https://github.com/vllm-project/vllm/issues/24464 is resolved
         platform: [ 'manylinux_2_28_x86_64', 'manylinux_2_28_aarch64' ]
-        device: [ 'cu128', 'cu129' ]
+        device: [ 'cu128', 'cu129', 'cu130' ]
         include:
           - platform: manylinux_2_28_x86_64
             device: cu128
@@ -39,6 +38,10 @@ jobs:
             device: cu129
             manylinux-image: 'pytorch/manylinux2_28-builder:cuda12.9'
             runner: linux.12xlarge.memory
+          - platform: manylinux_2_28_x86_64
+            device: cu130
+            manylinux-image: 'pytorch/manylinux2_28-builder:cuda13.0'
+            runner: linux.12xlarge.memory
           - platform: manylinux_2_28_aarch64
             device: cu128
             manylinux-image: 'pytorch/manylinuxaarch64-builder:cuda12.8'
@@ -47,6 +50,11 @@ jobs:
             device: cu129
             manylinux-image: 'pytorch/manylinuxaarch64-builder:cuda12.9'
             runner: linux.arm64.r7g.12xlarge.memory
+        exclude:
+          # TODO (huydhn): Add cu130 aarch64 once PyTorch is on 2.9+ and
+          # xformers is update to support 13.0
+          - platform: manylinux_2_28_aarch64
+            device: cu130
     name: "Build ${{ matrix.device }} vLLM wheel on ${{ matrix.platform }}"
     runs-on: ${{ matrix.runner }}
     timeout-minutes: 480
@@ -118,13 +126,13 @@ jobs:
             "${MANYLINUX_IMAGE}"
           )
 
-          docker exec -t "${container_name}" "${PYTHON_EXECUTABLE}" -mpip install \
+          docker exec -t "${container_name}" "${PYTHON_EXECUTABLE}" -m pip install \
             --pre torch torchvision torchaudio \
             --index-url "https://download.pytorch.org/whl/nightly/${BUILD_DEVICE}"
 
           # I wonder if there is a command to both download and install the wheels
           # in one go
-          docker exec -t "${container_name}" "${PYTHON_EXECUTABLE}" -mpip download \
+          docker exec -t "${container_name}" "${PYTHON_EXECUTABLE}" -m pip download \
             --pre torch torchvision torchaudio \
             --index-url "https://download.pytorch.org/whl/nightly/${BUILD_DEVICE}"
 
@@ -169,7 +177,12 @@ jobs:
       fail-fast: false
       matrix:
         platform: [ 'manylinux_2_28_x86_64', 'manylinux_2_28_aarch64' ]
-        device: [ 'cu128', 'cu129' ]
+        device: [ 'cu128', 'cu129', 'cu130' ]
+        exclude:
+          # TODO (huydhn): Add cu130 aarch64 once PyTorch is on 2.9+ and
+          # xformers is update to support 13.0
+          - platform: manylinux_2_28_aarch64
+            device: cu130
     env:
       PLATFORM: ${{ matrix.platform }}
       BUILD_DEVICE: ${{ matrix.device }}

.github/workflows/generated-macos-arm64-binary-wheel-nightly.yml

@@ -106,7 +106,7 @@ jobs:
           SMOKE_TEST_PARAMS=""
 
           # shellcheck disable=SC2086
-          python -mvenv test_venv
+          python -m venv test_venv
           source test_venv/bin/activate
           pip install "$PYTORCH_FINAL_PACKAGE_DIR"/*.whl numpy -v
 
@@ -216,7 +216,7 @@ jobs:
           SMOKE_TEST_PARAMS=""
 
           # shellcheck disable=SC2086
-          python -mvenv test_venv
+          python -m venv test_venv
           source test_venv/bin/activate
           pip install "$PYTORCH_FINAL_PACKAGE_DIR"/*.whl numpy -v
 
@@ -326,7 +326,7 @@ jobs:
           SMOKE_TEST_PARAMS=""
 
           # shellcheck disable=SC2086
-          python -mvenv test_venv
+          python -m venv test_venv
           source test_venv/bin/activate
           pip install "$PYTORCH_FINAL_PACKAGE_DIR"/*.whl numpy -v
 
@@ -436,7 +436,7 @@ jobs:
           SMOKE_TEST_PARAMS=""
 
           # shellcheck disable=SC2086
-          python -mvenv test_venv
+          python -m venv test_venv
           source test_venv/bin/activate
           pip install "$PYTORCH_FINAL_PACKAGE_DIR"/*.whl numpy -v
 
@@ -546,7 +546,7 @@ jobs:
           SMOKE_TEST_PARAMS=""
 
           # shellcheck disable=SC2086
-          python -mvenv test_venv
+          python -m venv test_venv
           source test_venv/bin/activate
           pip install "$PYTORCH_FINAL_PACKAGE_DIR"/*.whl numpy -v
 
@@ -656,7 +656,7 @@ jobs:
           SMOKE_TEST_PARAMS=""
 
           # shellcheck disable=SC2086
-          python -mvenv test_venv
+          python -m venv test_venv
           source test_venv/bin/activate
           pip install "$PYTORCH_FINAL_PACKAGE_DIR"/*.whl numpy -v
 
@@ -766,7 +766,7 @@ jobs:
           SMOKE_TEST_PARAMS=""
 
           # shellcheck disable=SC2086
-          python -mvenv test_venv
+          python -m venv test_venv
           source test_venv/bin/activate
           pip install "$PYTORCH_FINAL_PACKAGE_DIR"/*.whl numpy -v
 

.github/workflows/generated-windows-binary-libtorch-debug-nightly.yml

@@ -788,256 +788,6 @@ jobs:
     secrets:
       github-token: ${{ secrets.GITHUB_TOKEN }}
     uses: ./.github/workflows/_binary-upload.yml
-  libtorch-cuda12_9-shared-with-deps-debug-build:
-    if: ${{ github.repository_owner == 'pytorch' }}
-    needs: get-label-type
-    runs-on: "${{ needs.get-label-type.outputs.label-type }}windows.4xlarge"
-    timeout-minutes: 360
-    env:
-      PYTORCH_ROOT: ${{ github.workspace }}/pytorch
-      PACKAGE_TYPE: libtorch
-      # TODO: This is a legacy variable that we eventually want to get rid of in
-      #       favor of GPU_ARCH_VERSION
-      DESIRED_CUDA: cu129
-      GPU_ARCH_VERSION: "12.9"
-      GPU_ARCH_TYPE: cuda
-      SKIP_ALL_TESTS: 1
-      LIBTORCH_CONFIG: debug
-      LIBTORCH_VARIANT: shared-with-deps
-      # This is a dummy value for libtorch to work correctly with our batch scripts
-      # without this value pip does not get installed for some reason
-      DESIRED_PYTHON: "3.10"
-    steps:
-      # NOTE: These environment variables are put here so that they can be applied on every job equally
-      #       They are also here because setting them at a workflow level doesn't give us access to the
-      #       runner.temp variable, which we need.
-      - name: Populate binary env
-        shell: bash
-        run: |
-          echo "BINARY_ENV_FILE=${RUNNER_TEMP}/env" >> "${GITHUB_ENV}"
-          echo "PYTORCH_FINAL_PACKAGE_DIR=${RUNNER_TEMP}/artifacts" >> "${GITHUB_ENV}"
-          echo "WIN_PACKAGE_WORK_DIR=${RUNNER_TEMP}"
-      - name: Display EC2 information
-        shell: bash
-        run: |
-          set -euo pipefail
-          function get_ec2_metadata() {
-            # Pulled from instance metadata endpoint for EC2
-            # see https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-retrieval.html
-            category=$1
-            curl -H "X-aws-ec2-metadata-token: $(curl -s -X PUT "http://169.254.169.254/latest/api/token" -H "X-aws-ec2-metadata-token-ttl-seconds: 30")" -fsSL "http://169.254.169.254/latest/meta-data/${category}"
-          }
-          echo "ami-id: $(get_ec2_metadata ami-id)"
-          echo "instance-id: $(get_ec2_metadata instance-id)"
-          echo "instance-type: $(get_ec2_metadata instance-type)"
-          echo "system info $(uname -a)"
-      - name: "[FB EMPLOYEES] Enable SSH (Click me for login details)"
-        uses: pytorch/test-infra/.github/actions/setup-ssh@main
-        continue-on-error: true
-        with:
-          github-secret: ${{ secrets.GITHUB_TOKEN }}
-      - name: Enable git long paths and symlinks on Windows and disable fsmonitor daemon
-        shell: bash
-        run: |
-          git config --global core.longpaths true
-          git config --global core.symlinks true
-
-          # https://git-scm.com/docs/git-fsmonitor--daemon.  The daemon could lock
-          # the directory on Windows and prevent GHA from checking out as reported
-          # in https://github.com/actions/checkout/issues/1018
-          git config --global core.fsmonitor false
-      # Needed for binary builds, see: https://github.com/pytorch/pytorch/issues/73339#issuecomment-1058981560
-      - name: Enable long paths on Windows
-        shell: powershell
-        run: |
-          Set-ItemProperty -Path "HKLM:\\SYSTEM\CurrentControlSet\Control\FileSystem" -Name "LongPathsEnabled" -Value 1
-      # Since it's just a defensive command, the workflow should continue even the command fails. This step can be
-      # removed once Windows Defender is removed from the AMI
-      - name: Disables Windows Defender scheduled and real-time scanning for files in directories used by PyTorch
-        continue-on-error: true
-        shell: powershell
-        run: |
-          Add-MpPreference -ExclusionPath $(Get-Location).tostring(),$Env:TEMP -ErrorAction Ignore
-          # Let's both exclude the path and disable Windows Defender completely just to be sure
-          # that it doesn't interfere
-          Set-MpPreference -DisableRealtimeMonitoring $True -ErrorAction Ignore
-      - name: Checkout PyTorch
-        uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
-          submodules: recursive
-          path: pytorch
-          show-progress: false
-      - name: Clean PyTorch checkout
-        run: |
-          # Remove any artifacts from the previous checkouts
-          git clean -fxd
-        working-directory: pytorch
-      - name: Populate binary env
-        shell: bash
-        run: |
-          "${PYTORCH_ROOT}/.circleci/scripts/binary_populate_env.sh"
-      - name: Build PyTorch binary
-        shell: bash
-        run: |
-          "${PYTORCH_ROOT}/.circleci/scripts/binary_windows_build.sh"
-      - uses: actions/upload-artifact@v4.4.0
-        if: always()
-        with:
-          name: libtorch-cuda12_9-shared-with-deps-debug
-          retention-days: 14
-          if-no-files-found: error
-          path: "${{ env.PYTORCH_FINAL_PACKAGE_DIR }}"
-      - name: Wait until all sessions have drained
-        shell: powershell
-        working-directory: pytorch
-        if: always()
-        timeout-minutes: 120
-        run: |
-          .github\scripts\wait_for_ssh_to_drain.ps1
-      - name: Kill active ssh sessions if still around (Useful if workflow was cancelled)
-        shell: powershell
-        working-directory: pytorch
-        if: always()
-        run: |
-          .github\scripts\kill_active_ssh_sessions.ps1
-
-  libtorch-cuda12_9-shared-with-deps-debug-test:  # Testing
-    if: ${{ github.repository_owner == 'pytorch' }}
-    needs:
-      - libtorch-cuda12_9-shared-with-deps-debug-build
-      - get-label-type
-    runs-on: "${{ needs.get-label-type.outputs.label-type }}windows.g4dn.xlarge"
-    timeout-minutes: 360
-    env:
-      PYTORCH_ROOT: ${{ github.workspace }}/pytorch
-      PACKAGE_TYPE: libtorch
-      # TODO: This is a legacy variable that we eventually want to get rid of in
-      #       favor of GPU_ARCH_VERSION
-      DESIRED_CUDA: cu129
-      GPU_ARCH_VERSION: "12.9"
-      GPU_ARCH_TYPE: cuda
-      SKIP_ALL_TESTS: 1
-      LIBTORCH_CONFIG: debug
-      LIBTORCH_VARIANT: shared-with-deps
-      # This is a dummy value for libtorch to work correctly with our batch scripts
-      # without this value pip does not get installed for some reason
-      DESIRED_PYTHON: "3.10"
-    steps:
-      - name: Display EC2 information
-        shell: bash
-        run: |
-          set -euo pipefail
-          function get_ec2_metadata() {
-            # Pulled from instance metadata endpoint for EC2
-            # see https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-retrieval.html
-            category=$1
-            curl -H "X-aws-ec2-metadata-token: $(curl -s -X PUT "http://169.254.169.254/latest/api/token" -H "X-aws-ec2-metadata-token-ttl-seconds: 30")" -fsSL "http://169.254.169.254/latest/meta-data/${category}"
-          }
-          echo "ami-id: $(get_ec2_metadata ami-id)"
-          echo "instance-id: $(get_ec2_metadata instance-id)"
-          echo "instance-type: $(get_ec2_metadata instance-type)"
-          echo "system info $(uname -a)"
-      - name: "[FB EMPLOYEES] Enable SSH (Click me for login details)"
-        uses: pytorch/test-infra/.github/actions/setup-ssh@main
-        continue-on-error: true
-        with:
-          github-secret: ${{ secrets.GITHUB_TOKEN }}
-      - name: Enable git long paths and symlinks on Windows and disable fsmonitor daemon
-        shell: bash
-        run: |
-          git config --global core.longpaths true
-          git config --global core.symlinks true
-
-          # https://git-scm.com/docs/git-fsmonitor--daemon.  The daemon could lock
-          # the directory on Windows and prevent GHA from checking out as reported
-          # in https://github.com/actions/checkout/issues/1018
-          git config --global core.fsmonitor false
-      # Needed for binary builds, see: https://github.com/pytorch/pytorch/issues/73339#issuecomment-1058981560
-      - name: Enable long paths on Windows
-        shell: powershell
-        run: |
-          Set-ItemProperty -Path "HKLM:\\SYSTEM\CurrentControlSet\Control\FileSystem" -Name "LongPathsEnabled" -Value 1
-      # Since it's just a defensive command, the workflow should continue even the command fails. This step can be
-      # removed once Windows Defender is removed from the AMI
-      - name: Disables Windows Defender scheduled and real-time scanning for files in directories used by PyTorch
-        continue-on-error: true
-        shell: powershell
-        run: |
-          Add-MpPreference -ExclusionPath $(Get-Location).tostring(),$Env:TEMP -ErrorAction Ignore
-          # Let's both exclude the path and disable Windows Defender completely just to be sure
-          # that it doesn't interfere
-          Set-MpPreference -DisableRealtimeMonitoring $True -ErrorAction Ignore
-      - name: Checkout PyTorch
-        uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
-          submodules: recursive
-          path: pytorch
-          show-progress: false
-      - name: Clean PyTorch checkout
-        run: |
-          # Remove any artifacts from the previous checkouts
-          git clean -fxd
-        working-directory: pytorch
-      # NOTE: These environment variables are put here so that they can be applied on every job equally
-      #       They are also here because setting them at a workflow level doesn't give us access to the
-      #       runner.temp variable, which we need.
-      - name: Populate binary env
-        shell: bash
-        run: |
-          echo "BINARY_ENV_FILE=${RUNNER_TEMP}/env" >> "${GITHUB_ENV}"
-          echo "PYTORCH_FINAL_PACKAGE_DIR=${RUNNER_TEMP}/artifacts" >> "${GITHUB_ENV}"
-          echo "WIN_PACKAGE_WORK_DIR=${RUNNER_TEMP}"
-      - uses: actions/download-artifact@v4.1.7
-        name: Download Build Artifacts
-        with:
-          name: libtorch-cuda12_9-shared-with-deps-debug
-          path: "${{ env.PYTORCH_FINAL_PACKAGE_DIR }}"
-      - name: Populate binary env
-        shell: bash
-        run: |
-          "${PYTORCH_ROOT}/.circleci/scripts/binary_populate_env.sh"
-      - name: Test PyTorch binary
-        shell: bash
-        run: |
-          "${PYTORCH_ROOT}/.circleci/scripts/binary_windows_test.sh"
-      - name: Wait until all sessions have drained
-        shell: powershell
-        working-directory: pytorch
-        if: always()
-        timeout-minutes: 120
-        run: |
-          .github\scripts\wait_for_ssh_to_drain.ps1
-      - name: Kill active ssh sessions if still around (Useful if workflow was cancelled)
-        shell: powershell
-        working-directory: pytorch
-        if: always()
-        run: |
-          .github\scripts\kill_active_ssh_sessions.ps1
-  libtorch-cuda12_9-shared-with-deps-debug-upload:  # Uploading
-    if: ${{ github.repository_owner == 'pytorch' }}
-    permissions:
-      id-token: write
-      contents: read
-    needs: libtorch-cuda12_9-shared-with-deps-debug-test
-    with:
-      PYTORCH_ROOT: ${{ github.workspace }}/pytorch
-      PACKAGE_TYPE: libtorch
-      # TODO: This is a legacy variable that we eventually want to get rid of in
-      #       favor of GPU_ARCH_VERSION
-      DESIRED_CUDA: cu129
-      GPU_ARCH_VERSION: "12.9"
-      GPU_ARCH_TYPE: cuda
-      LIBTORCH_CONFIG: debug
-      LIBTORCH_VARIANT: shared-with-deps
-      # This is a dummy value for libtorch to work correctly with our batch scripts
-      # without this value pip does not get installed for some reason
-      DESIRED_PYTHON: "3.10"
-      build_name: libtorch-cuda12_9-shared-with-deps-debug
-    secrets:
-      github-token: ${{ secrets.GITHUB_TOKEN }}
-    uses: ./.github/workflows/_binary-upload.yml
   libtorch-cuda13_0-shared-with-deps-debug-build:
     if: ${{ github.repository_owner == 'pytorch' }}
     needs: get-label-type

.github/workflows/generated-windows-binary-libtorch-release-nightly.yml

@@ -788,256 +788,6 @@ jobs:
     secrets:
       github-token: ${{ secrets.GITHUB_TOKEN }}
     uses: ./.github/workflows/_binary-upload.yml
-  libtorch-cuda12_9-shared-with-deps-release-build:
-    if: ${{ github.repository_owner == 'pytorch' }}
-    needs: get-label-type
-    runs-on: "${{ needs.get-label-type.outputs.label-type }}windows.4xlarge"
-    timeout-minutes: 360
-    env:
-      PYTORCH_ROOT: ${{ github.workspace }}/pytorch
-      PACKAGE_TYPE: libtorch
-      # TODO: This is a legacy variable that we eventually want to get rid of in
-      #       favor of GPU_ARCH_VERSION
-      DESIRED_CUDA: cu129
-      GPU_ARCH_VERSION: "12.9"
-      GPU_ARCH_TYPE: cuda
-      SKIP_ALL_TESTS: 1
-      LIBTORCH_CONFIG: release
-      LIBTORCH_VARIANT: shared-with-deps
-      # This is a dummy value for libtorch to work correctly with our batch scripts
-      # without this value pip does not get installed for some reason
-      DESIRED_PYTHON: "3.10"
-    steps:
-      # NOTE: These environment variables are put here so that they can be applied on every job equally
-      #       They are also here because setting them at a workflow level doesn't give us access to the
-      #       runner.temp variable, which we need.
-      - name: Populate binary env
-        shell: bash
-        run: |
-          echo "BINARY_ENV_FILE=${RUNNER_TEMP}/env" >> "${GITHUB_ENV}"
-          echo "PYTORCH_FINAL_PACKAGE_DIR=${RUNNER_TEMP}/artifacts" >> "${GITHUB_ENV}"
-          echo "WIN_PACKAGE_WORK_DIR=${RUNNER_TEMP}"
-      - name: Display EC2 information
-        shell: bash
-        run: |
-          set -euo pipefail
-          function get_ec2_metadata() {
-            # Pulled from instance metadata endpoint for EC2
-            # see https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-retrieval.html
-            category=$1
-            curl -H "X-aws-ec2-metadata-token: $(curl -s -X PUT "http://169.254.169.254/latest/api/token" -H "X-aws-ec2-metadata-token-ttl-seconds: 30")" -fsSL "http://169.254.169.254/latest/meta-data/${category}"
-          }
-          echo "ami-id: $(get_ec2_metadata ami-id)"
-          echo "instance-id: $(get_ec2_metadata instance-id)"
-          echo "instance-type: $(get_ec2_metadata instance-type)"
-          echo "system info $(uname -a)"
-      - name: "[FB EMPLOYEES] Enable SSH (Click me for login details)"
-        uses: pytorch/test-infra/.github/actions/setup-ssh@main
-        continue-on-error: true
-        with:
-          github-secret: ${{ secrets.GITHUB_TOKEN }}
-      - name: Enable git long paths and symlinks on Windows and disable fsmonitor daemon
-        shell: bash
-        run: |
-          git config --global core.longpaths true
-          git config --global core.symlinks true
-
-          # https://git-scm.com/docs/git-fsmonitor--daemon.  The daemon could lock
-          # the directory on Windows and prevent GHA from checking out as reported
-          # in https://github.com/actions/checkout/issues/1018
-          git config --global core.fsmonitor false
-      # Needed for binary builds, see: https://github.com/pytorch/pytorch/issues/73339#issuecomment-1058981560
-      - name: Enable long paths on Windows
-        shell: powershell
-        run: |
-          Set-ItemProperty -Path "HKLM:\\SYSTEM\CurrentControlSet\Control\FileSystem" -Name "LongPathsEnabled" -Value 1
-      # Since it's just a defensive command, the workflow should continue even the command fails. This step can be
-      # removed once Windows Defender is removed from the AMI
-      - name: Disables Windows Defender scheduled and real-time scanning for files in directories used by PyTorch
-        continue-on-error: true
-        shell: powershell
-        run: |
-          Add-MpPreference -ExclusionPath $(Get-Location).tostring(),$Env:TEMP -ErrorAction Ignore
-          # Let's both exclude the path and disable Windows Defender completely just to be sure
-          # that it doesn't interfere
-          Set-MpPreference -DisableRealtimeMonitoring $True -ErrorAction Ignore
-      - name: Checkout PyTorch
-        uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
-          submodules: recursive
-          path: pytorch
-          show-progress: false
-      - name: Clean PyTorch checkout
-        run: |
-          # Remove any artifacts from the previous checkouts
-          git clean -fxd
-        working-directory: pytorch
-      - name: Populate binary env
-        shell: bash
-        run: |
-          "${PYTORCH_ROOT}/.circleci/scripts/binary_populate_env.sh"
-      - name: Build PyTorch binary
-        shell: bash
-        run: |
-          "${PYTORCH_ROOT}/.circleci/scripts/binary_windows_build.sh"
-      - uses: actions/upload-artifact@v4.4.0
-        if: always()
-        with:
-          name: libtorch-cuda12_9-shared-with-deps-release
-          retention-days: 14
-          if-no-files-found: error
-          path: "${{ env.PYTORCH_FINAL_PACKAGE_DIR }}"
-      - name: Wait until all sessions have drained
-        shell: powershell
-        working-directory: pytorch
-        if: always()
-        timeout-minutes: 120
-        run: |
-          .github\scripts\wait_for_ssh_to_drain.ps1
-      - name: Kill active ssh sessions if still around (Useful if workflow was cancelled)
-        shell: powershell
-        working-directory: pytorch
-        if: always()
-        run: |
-          .github\scripts\kill_active_ssh_sessions.ps1
-
-  libtorch-cuda12_9-shared-with-deps-release-test:  # Testing
-    if: ${{ github.repository_owner == 'pytorch' }}
-    needs:
-      - libtorch-cuda12_9-shared-with-deps-release-build
-      - get-label-type
-    runs-on: "${{ needs.get-label-type.outputs.label-type }}windows.g4dn.xlarge"
-    timeout-minutes: 360
-    env:
-      PYTORCH_ROOT: ${{ github.workspace }}/pytorch
-      PACKAGE_TYPE: libtorch
-      # TODO: This is a legacy variable that we eventually want to get rid of in
-      #       favor of GPU_ARCH_VERSION
-      DESIRED_CUDA: cu129
-      GPU_ARCH_VERSION: "12.9"
-      GPU_ARCH_TYPE: cuda
-      SKIP_ALL_TESTS: 1
-      LIBTORCH_CONFIG: release
-      LIBTORCH_VARIANT: shared-with-deps
-      # This is a dummy value for libtorch to work correctly with our batch scripts
-      # without this value pip does not get installed for some reason
-      DESIRED_PYTHON: "3.10"
-    steps:
-      - name: Display EC2 information
-        shell: bash
-        run: |
-          set -euo pipefail
-          function get_ec2_metadata() {
-            # Pulled from instance metadata endpoint for EC2
-            # see https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instancedata-data-retrieval.html
-            category=$1
-            curl -H "X-aws-ec2-metadata-token: $(curl -s -X PUT "http://169.254.169.254/latest/api/token" -H "X-aws-ec2-metadata-token-ttl-seconds: 30")" -fsSL "http://169.254.169.254/latest/meta-data/${category}"
-          }
-          echo "ami-id: $(get_ec2_metadata ami-id)"
-          echo "instance-id: $(get_ec2_metadata instance-id)"
-          echo "instance-type: $(get_ec2_metadata instance-type)"
-          echo "system info $(uname -a)"
-      - name: "[FB EMPLOYEES] Enable SSH (Click me for login details)"
-        uses: pytorch/test-infra/.github/actions/setup-ssh@main
-        continue-on-error: true
-        with:
-          github-secret: ${{ secrets.GITHUB_TOKEN }}
-      - name: Enable git long paths and symlinks on Windows and disable fsmonitor daemon
-        shell: bash
-        run: |
-          git config --global core.longpaths true
-          git config --global core.symlinks true
-
-          # https://git-scm.com/docs/git-fsmonitor--daemon.  The daemon could lock
-          # the directory on Windows and prevent GHA from checking out as reported
-          # in https://github.com/actions/checkout/issues/1018
-          git config --global core.fsmonitor false
-      # Needed for binary builds, see: https://github.com/pytorch/pytorch/issues/73339#issuecomment-1058981560
-      - name: Enable long paths on Windows
-        shell: powershell
-        run: |
-          Set-ItemProperty -Path "HKLM:\\SYSTEM\CurrentControlSet\Control\FileSystem" -Name "LongPathsEnabled" -Value 1
-      # Since it's just a defensive command, the workflow should continue even the command fails. This step can be
-      # removed once Windows Defender is removed from the AMI
-      - name: Disables Windows Defender scheduled and real-time scanning for files in directories used by PyTorch
-        continue-on-error: true
-        shell: powershell
-        run: |
-          Add-MpPreference -ExclusionPath $(Get-Location).tostring(),$Env:TEMP -ErrorAction Ignore
-          # Let's both exclude the path and disable Windows Defender completely just to be sure
-          # that it doesn't interfere
-          Set-MpPreference -DisableRealtimeMonitoring $True -ErrorAction Ignore
-      - name: Checkout PyTorch
-        uses: actions/checkout@v4
-        with:
-          ref: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.sha || github.sha }}
-          submodules: recursive
-          path: pytorch
-          show-progress: false
-      - name: Clean PyTorch checkout
-        run: |
-          # Remove any artifacts from the previous checkouts
-          git clean -fxd
-        working-directory: pytorch
-      # NOTE: These environment variables are put here so that they can be applied on every job equally
-      #       They are also here because setting them at a workflow level doesn't give us access to the
-      #       runner.temp variable, which we need.
-      - name: Populate binary env
-        shell: bash
-        run: |
-          echo "BINARY_ENV_FILE=${RUNNER_TEMP}/env" >> "${GITHUB_ENV}"
-          echo "PYTORCH_FINAL_PACKAGE_DIR=${RUNNER_TEMP}/artifacts" >> "${GITHUB_ENV}"
-          echo "WIN_PACKAGE_WORK_DIR=${RUNNER_TEMP}"
-      - uses: actions/download-artifact@v4.1.7
-        name: Download Build Artifacts
-        with:
-          name: libtorch-cuda12_9-shared-with-deps-release
-          path: "${{ env.PYTORCH_FINAL_PACKAGE_DIR }}"
-      - name: Populate binary env
-        shell: bash
-        run: |
-          "${PYTORCH_ROOT}/.circleci/scripts/binary_populate_env.sh"
-      - name: Test PyTorch binary
-        shell: bash
-        run: |
-          "${PYTORCH_ROOT}/.circleci/scripts/binary_windows_test.sh"
-      - name: Wait until all sessions have drained
-        shell: powershell
-        working-directory: pytorch
-        if: always()
-        timeout-minutes: 120
-        run: |
-          .github\scripts\wait_for_ssh_to_drain.ps1
-      - name: Kill active ssh sessions if still around (Useful if workflow was cancelled)
-        shell: powershell
-        working-directory: pytorch
-        if: always()
-        run: |
-          .github\scripts\kill_active_ssh_sessions.ps1
-  libtorch-cuda12_9-shared-with-deps-release-upload:  # Uploading
-    if: ${{ github.repository_owner == 'pytorch' }}
-    permissions:
-      id-token: write
-      contents: read
-    needs: libtorch-cuda12_9-shared-with-deps-release-test
-    with:
-      PYTORCH_ROOT: ${{ github.workspace }}/pytorch
-      PACKAGE_TYPE: libtorch
-      # TODO: This is a legacy variable that we eventually want to get rid of in
-      #       favor of GPU_ARCH_VERSION
-      DESIRED_CUDA: cu129
-      GPU_ARCH_VERSION: "12.9"
-      GPU_ARCH_TYPE: cuda
-      LIBTORCH_CONFIG: release
-      LIBTORCH_VARIANT: shared-with-deps
-      # This is a dummy value for libtorch to work correctly with our batch scripts
-      # without this value pip does not get installed for some reason
-      DESIRED_PYTHON: "3.10"
-      build_name: libtorch-cuda12_9-shared-with-deps-release
-    secrets:
-      github-token: ${{ secrets.GITHUB_TOKEN }}
-    uses: ./.github/workflows/_binary-upload.yml
   libtorch-cuda13_0-shared-with-deps-release-build:
     if: ${{ github.repository_owner == 'pytorch' }}
     needs: get-label-type

.github/workflows/inductor-perf-test-nightly-rocm-mi300.yml

@@ -0,0 +1,132 @@
+name: inductor-perf-nightly-rocm-mi300
+
+on:
+  push:
+    tags:
+      - ciflow/inductor-perf-test-nightly-rocm-mi300/*
+  schedule:
+    - cron: 15 0 * * *
+  # NB: GitHub has an upper limit of 10 inputs here, so before we can sort it
+  # out, let try to run torchao cudagraphs_low_precision as part of cudagraphs
+  workflow_dispatch:
+    inputs:
+      training:
+        description: Run training (on by default)?
+        required: false
+        type: boolean
+        default: true
+      inference:
+        description: Run inference (on by default)?
+        required: false
+        type: boolean
+        default: true
+      default:
+        description: Run inductor_default?
+        required: false
+        type: boolean
+        default: false
+      dynamic:
+        description: Run inductor_dynamic_shapes?
+        required: false
+        type: boolean
+        default: false
+      cppwrapper:
+        description: Run inductor_cpp_wrapper?
+        required: false
+        type: boolean
+        default: false
+      cudagraphs:
+        description: Run inductor_cudagraphs?
+        required: false
+        type: boolean
+        default: true
+      freezing_cudagraphs:
+        description: Run inductor_cudagraphs with freezing for inference?
+        required: false
+        type: boolean
+        default: false
+      aotinductor:
+        description: Run aot_inductor for inference?
+        required: false
+        type: boolean
+        default: false
+      maxautotune:
+        description: Run inductor_max_autotune?
+        required: false
+        type: boolean
+        default: false
+      benchmark_configs:
+        description: The list of configs used the benchmark
+        required: false
+        type: string
+        default: inductor_huggingface_perf_rocm_mi300,inductor_timm_perf_rocm_mi300,inductor_torchbench_perf_rocm_mi300
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref_name }}-${{ github.ref_type == 'branch' && github.sha }}-${{ github.event_name == 'workflow_dispatch' }}-${{ github.event_name == 'schedule' }}
+  cancel-in-progress: true
+
+permissions: read-all
+
+jobs:
+  get-label-type:
+    name: get-label-type
+    uses: pytorch/pytorch/.github/workflows/_runner-determinator.yml@main
+    if: ${{ (github.event_name != 'schedule' || github.repository == 'pytorch/pytorch') && github.repository_owner == 'pytorch' }}
+    with:
+      triggering_actor: ${{ github.triggering_actor }}
+      issue_owner: ${{ github.event.pull_request.user.login || github.event.issue.user.login }}
+      curr_branch: ${{ github.head_ref || github.ref_name }}
+      curr_ref_type: ${{ github.ref_type }}
+      opt_out_experiments: lf
+
+  linux-jammy-rocm-py3_10-inductor-benchmark-build:
+    if: github.repository_owner == 'pytorch'
+    name: rocm-py3_10-inductor-benchmark-build
+    uses: ./.github/workflows/_linux-build.yml
+    with:
+      build-environment: linux-jammy-rocm-py3_10
+      docker-image-name: ci-image:pytorch-linux-jammy-rocm-n-py3-benchmarks
+      test-matrix: |
+        { include: [
+          { config: "inductor_huggingface_perf_rocm_mi300", shard: 1, num_shards: 5, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_huggingface_perf_rocm_mi300", shard: 2, num_shards: 5, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_huggingface_perf_rocm_mi300", shard: 3, num_shards: 5, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_huggingface_perf_rocm_mi300", shard: 4, num_shards: 5, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_huggingface_perf_rocm_mi300", shard: 5, num_shards: 5, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_timm_perf_rocm_mi300", shard: 1, num_shards: 7, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_timm_perf_rocm_mi300", shard: 2, num_shards: 7, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_timm_perf_rocm_mi300", shard: 3, num_shards: 7, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_timm_perf_rocm_mi300", shard: 4, num_shards: 7, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_timm_perf_rocm_mi300", shard: 5, num_shards: 7, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_timm_perf_rocm_mi300", shard: 6, num_shards: 7, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_timm_perf_rocm_mi300", shard: 7, num_shards: 7, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_torchbench_perf_rocm_mi300", shard: 1, num_shards: 9, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_torchbench_perf_rocm_mi300", shard: 2, num_shards: 9, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_torchbench_perf_rocm_mi300", shard: 3, num_shards: 9, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_torchbench_perf_rocm_mi300", shard: 4, num_shards: 9, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_torchbench_perf_rocm_mi300", shard: 5, num_shards: 9, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_torchbench_perf_rocm_mi300", shard: 6, num_shards: 9, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_torchbench_perf_rocm_mi300", shard: 7, num_shards: 9, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_torchbench_perf_rocm_mi300", shard: 8, num_shards: 9, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_torchbench_perf_rocm_mi300", shard: 9, num_shards: 9, runner: "linux.rocm.gpu.gfx942.1" },
+        ]}
+    secrets: inherit
+
+  linux-jammy-rocm-py3_10-inductor-benchmark-test:
+    permissions:
+      id-token: write
+      contents: read
+    name: rocm-py3_10-inductor-benchmark-test
+    uses: ./.github/workflows/_rocm-test.yml
+    needs: linux-jammy-rocm-py3_10-inductor-benchmark-build
+    with:
+      build-environment: linux-jammy-rocm-py3_10
+      dashboard-tag: training-true-inference-true-default-true-dynamic-true-cudagraphs-true-cppwrapper-true-aotinductor-true-freezing_cudagraphs-true-cudagraphs_low_precision-true
+      docker-image: ${{ needs.linux-jammy-rocm-py3_10-inductor-benchmark-build.outputs.docker-image }}
+      test-matrix: ${{ needs.linux-jammy-rocm-py3_10-inductor-benchmark-build.outputs.test-matrix }}
+      timeout-minutes: 720
+      # Disable monitor in perf tests for more investigation
+      disable-monitor: true
+      monitor-log-interval: 10
+      monitor-data-collect-interval: 2
+    secrets: inherit

.github/workflows/inductor-perf-test-nightly-rocm-mi355.yml

@@ -1,11 +1,11 @@
-name: inductor-perf-nightly-rocm
+name: inductor-perf-nightly-rocm-mi355
 
 on:
   push:
     tags:
-      - ciflow/inductor-perf-test-nightly-rocm/*
+      - ciflow/inductor-perf-test-nightly-rocm-mi355/*
   schedule:
-    - cron: 0 7 * * 0,3
+    - cron: 15 0 * * *
   # NB: GitHub has an upper limit of 10 inputs here, so before we can sort it
   # out, let try to run torchao cudagraphs_low_precision as part of cudagraphs
   workflow_dispatch:
@@ -59,7 +59,7 @@ on:
         description: The list of configs used the benchmark
         required: false
         type: string
-        default: inductor_huggingface_perf_rocm,inductor_timm_perf_rocm,inductor_torchbench_perf_rocm
+        default: inductor_huggingface_perf_rocm_mi355,inductor_timm_perf_rocm_mi355,inductor_torchbench_perf_rocm_mi355
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref_name }}-${{ github.ref_type == 'branch' && github.sha }}-${{ github.event_name == 'workflow_dispatch' }}-${{ github.event_name == 'schedule' }}
@@ -88,23 +88,27 @@ jobs:
       docker-image-name: ci-image:pytorch-linux-jammy-rocm-n-py3-benchmarks
       test-matrix: |
         { include: [
-          { config: "inductor_huggingface_perf_rocm", shard: 1, num_shards: 4, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_huggingface_perf_rocm_mi355", shard: 1, num_shards: 5, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "inductor_huggingface_perf_rocm", shard: 2, num_shards: 4, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_huggingface_perf_rocm_mi355", shard: 2, num_shards: 5, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "inductor_huggingface_perf_rocm", shard: 3, num_shards: 4, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_huggingface_perf_rocm_mi355", shard: 3, num_shards: 5, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "inductor_huggingface_perf_rocm", shard: 4, num_shards: 4, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_huggingface_perf_rocm_mi355", shard: 4, num_shards: 5, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "inductor_timm_perf_rocm", shard: 1, num_shards: 5, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_huggingface_perf_rocm_mi355", shard: 5, num_shards: 5, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "inductor_timm_perf_rocm", shard: 2, num_shards: 5, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_timm_perf_rocm_mi355", shard: 1, num_shards: 7, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "inductor_timm_perf_rocm", shard: 3, num_shards: 5, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_timm_perf_rocm_mi355", shard: 2, num_shards: 7, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "inductor_timm_perf_rocm", shard: 4, num_shards: 5, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_timm_perf_rocm_mi355", shard: 3, num_shards: 7, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "inductor_timm_perf_rocm", shard: 5, num_shards: 5, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_timm_perf_rocm_mi355", shard: 4, num_shards: 7, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "inductor_torchbench_perf_rocm", shard: 1, num_shards: 8, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_timm_perf_rocm_mi355", shard: 5, num_shards: 7, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "inductor_torchbench_perf_rocm", shard: 2, num_shards: 8, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_timm_perf_rocm_mi355", shard: 6, num_shards: 7, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "inductor_torchbench_perf_rocm", shard: 3, num_shards: 8, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_timm_perf_rocm_mi355", shard: 7, num_shards: 7, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "inductor_torchbench_perf_rocm", shard: 4, num_shards: 8, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_torchbench_perf_rocm_mi355", shard: 1, num_shards: 9, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "inductor_torchbench_perf_rocm", shard: 5, num_shards: 8, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_torchbench_perf_rocm_mi355", shard: 2, num_shards: 9, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "inductor_torchbench_perf_rocm", shard: 6, num_shards: 8, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_torchbench_perf_rocm_mi355", shard: 3, num_shards: 9, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "inductor_torchbench_perf_rocm", shard: 7, num_shards: 8, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_torchbench_perf_rocm_mi355", shard: 4, num_shards: 9, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "inductor_torchbench_perf_rocm", shard: 8, num_shards: 8, runner: "linux.rocm.gpu.gfx942.1" },
+          { config: "inductor_torchbench_perf_rocm_mi355", shard: 5, num_shards: 9, runner: "linux.rocm.gpu.mi355.1" },
+          { config: "inductor_torchbench_perf_rocm_mi355", shard: 6, num_shards: 9, runner: "linux.rocm.gpu.mi355.1" },
+          { config: "inductor_torchbench_perf_rocm_mi355", shard: 7, num_shards: 9, runner: "linux.rocm.gpu.mi355.1" },
+          { config: "inductor_torchbench_perf_rocm_mi355", shard: 8, num_shards: 9, runner: "linux.rocm.gpu.mi355.1" },
+          { config: "inductor_torchbench_perf_rocm_mi355", shard: 9, num_shards: 9, runner: "linux.rocm.gpu.mi355.1" },
         ]}
     secrets: inherit
 

.github/workflows/lint.yml

@@ -118,9 +118,9 @@ jobs:
         CHANGED_FILES="${{ needs.get-changed-files.outputs.changed-files }}"
         echo "Running all other linters"
         if [ "$CHANGED_FILES" = '*' ]; then
-          ADDITIONAL_LINTRUNNER_ARGS="--skip CLANGTIDY,CLANGFORMAT,MYPY,MYPYSTRICT --all-files" .github/scripts/lintrunner.sh
+          ADDITIONAL_LINTRUNNER_ARGS="--skip CLANGTIDY,CLANGFORMAT,MYPY,MYPYSTRICT,PYREFLY --all-files" .github/scripts/lintrunner.sh
         else
-          ADDITIONAL_LINTRUNNER_ARGS="--skip CLANGTIDY,CLANGFORMAT,MYPY,MYPYSTRICT ${CHANGED_FILES}" .github/scripts/lintrunner.sh
+          ADDITIONAL_LINTRUNNER_ARGS="--skip CLANGTIDY,CLANGFORMAT,MYPY,MYPYSTRICT,PYREFLY ${CHANGED_FILES}" .github/scripts/lintrunner.sh
         fi
 
   quick-checks:

.github/workflows/operator_benchmark.yml

@@ -7,9 +7,11 @@ on:
   workflow_dispatch:
     inputs:
       test_mode:
-        required: false
+        type: choice
-        type: string
+        options:
-        default: 'short'
+          - 'short'
+          - 'long'
+          - 'all'
         description: tag filter for operator benchmarks, options from long, short, all
   schedule:
     # Run at 07:00 UTC every Sunday
@@ -28,38 +30,49 @@ permissions:
   contents: read
 
 jobs:
-  opbenchmark-build:
+  x86-opbenchmark-build:
     if: github.repository_owner == 'pytorch'
-    name: opbenchmark-build
+    name: x86-opbenchmark-build
     uses: ./.github/workflows/_linux-build.yml
     with:
       build-environment: linux-jammy-py3.10-gcc11-build
       docker-image-name: ci-image:pytorch-linux-jammy-py3-gcc11-inductor-benchmarks
       test-matrix: |
         { include: [
-          { config: "cpu_operator_benchmark_short", shard: 1, num_shards: 1, runner: "linux.12xlarge" },
+          { config: "cpu_operator_benchmark_${{ inputs.test_mode || 'short' }}", shard: 1, num_shards: 1, runner: "linux.12xlarge" },
         ]}
     secrets: inherit
 
-  opbenchmark-on-demand-build:
+  x86-opbenchmark-test:
-    if: ${{ github.event_name == 'workflow_dispatch' && github.repository_owner == 'pytorch' }}
+    name: x86-opbenchmark-test
-    name: opbenchmark-on-demand-build
-    uses: ./.github/workflows/_linux-build.yml
-    with:
-      build-environment: linux-jammy-py3.10-gcc11-build
-      docker-image-name: ci-image:pytorch-linux-jammy-py3-gcc11-inductor-benchmarks
-      test-matrix: |
-        { include: [
-          { config: "cpu_operator_benchmark_${{ inputs.test_mode }}", shard: 1, num_shards: 1, runner: "linux.12xlarge" },
-        ]}
-    secrets: inherit
-
-  opbenchmark-test:
-    name: opbenchmark-test
     uses: ./.github/workflows/_linux-test.yml
-    needs: opbenchmark-build
+    needs: x86-opbenchmark-build
     with:
       build-environment: linux-jammy-py3.10-gcc11-build
-      docker-image: ${{ needs.opbenchmark-build.outputs.docker-image }}
+      docker-image: ${{ needs.x86-opbenchmark-build.outputs.docker-image }}
-      test-matrix: ${{ needs.opbenchmark-build.outputs.test-matrix }}
+      test-matrix: ${{ needs.x86-opbenchmark-build.outputs.test-matrix }}
+    secrets: inherit
+
+  aarch64-opbenchmark-build:
+    if: github.repository_owner == 'pytorch'
+    name: aarch64-opbenchmark-build
+    uses: ./.github/workflows/_linux-build.yml
+    with:
+      build-environment: linux-jammy-aarch64-py3.10
+      runner: linux.arm64.m7g.4xlarge
+      docker-image-name: ci-image:pytorch-linux-jammy-aarch64-py3.10-gcc11
+      test-matrix: |
+        { include: [
+          { config: "cpu_operator_benchmark_short", shard: 1, num_shards: 1, runner: "linux.arm64.m8g.4xlarge" },
+        ]}
+    secrets: inherit
+
+  aarch64-opbenchmark-test:
+    name: aarch64-opbenchmark-test
+    uses: ./.github/workflows/_linux-test.yml
+    needs: aarch64-opbenchmark-build
+    with:
+      build-environment: linux-jammy-aarch64-py3.10
+      docker-image: ${{ needs.aarch64-opbenchmark-build.outputs.docker-image }}
+      test-matrix: ${{ needs.aarch64-opbenchmark-build.outputs.test-matrix }}
     secrets: inherit

.github/workflows/rocm-mi355.yml

@@ -45,12 +45,12 @@ jobs:
       sync-tag: rocm-build
       test-matrix: |
         { include: [
-          { config: "default", shard: 1, num_shards: 6, runner: "linux.rocm.gpu.mi355.2" },
+          { config: "default", shard: 1, num_shards: 6, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "default", shard: 2, num_shards: 6, runner: "linux.rocm.gpu.mi355.2" },
+          { config: "default", shard: 2, num_shards: 6, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "default", shard: 3, num_shards: 6, runner: "linux.rocm.gpu.mi355.2" },
+          { config: "default", shard: 3, num_shards: 6, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "default", shard: 4, num_shards: 6, runner: "linux.rocm.gpu.mi355.2" },
+          { config: "default", shard: 4, num_shards: 6, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "default", shard: 5, num_shards: 6, runner: "linux.rocm.gpu.mi355.2" },
+          { config: "default", shard: 5, num_shards: 6, runner: "linux.rocm.gpu.mi355.1" },
-          { config: "default", shard: 6, num_shards: 6, runner: "linux.rocm.gpu.mi355.2" },
+          { config: "default", shard: 6, num_shards: 6, runner: "linux.rocm.gpu.mi355.1" },
         ]}
     secrets: inherit
 

.github/workflows/trunk.yml

@@ -200,6 +200,23 @@ jobs:
       cuda-arch-list: '8.0'
     secrets: inherit
 
+  # Test cross-compiled models with Windows libs extracted from wheel
+  cross-compile-linux-test:
+    name: cross-compile-linux-test
+    uses: ./.github/workflows/_linux-test.yml
+    needs:
+      - linux-jammy-cuda12_8-py3_10-gcc11-build
+      - get-label-type
+      - win-vs2022-cuda12_8-py3-build
+    with:
+      build-environment: linux-jammy-cuda12.8-py3.10-gcc11
+      docker-image: ${{ needs.linux-jammy-cuda12_8-py3_10-gcc11-build.outputs.docker-image }}
+      test-matrix: |
+        { include: [
+          { config: "aoti_cross_compile_for_windows", shard: 1, num_shards: 1, runner: "${{ needs.get-label-type.outputs.label-type }}linux.g6.4xlarge.experimental.nvidia.gpu", win_torch_wheel_artifact: "win-vs2022-cuda12.8-py3" },
+        ]}
+    secrets: inherit
+
   verify-cachebench-cpu-build:
     name: verify-cachebench-cpu-build
     uses: ./.github/workflows/_linux-build.yml

.lintrunner.toml

@@ -209,6 +209,46 @@ command = [
     '@{{PATHSFILE}}'
 ]
 
+
+[[linter]]
+code = 'PYREFLY'
+include_patterns = [
+    'torch/**/*.py',
+    'torch/**/*.pyi',
+    'torchgen/**/*.py',
+    'torchgen/**/*.pyi',
+    'functorch/**/*.py',
+    'functorch/**/*.pyi',
+]
+exclude_patterns = []
+command = [
+    'python3',
+    'tools/linter/adapters/pyrefly_linter.py',
+    '--config=pyrefly.toml',
+]
+init_command = [
+    'python3',
+    'tools/linter/adapters/pip_init.py',
+    '--dry-run={{DRYRUN}}',
+    'numpy==2.1.0 ; python_version >= "3.12"',
+    'expecttest==0.3.0',
+    'pyrefly==0.36.2',
+    'sympy==1.13.3',
+    'types-requests==2.27.25',
+    'types-pyyaml==6.0.2',
+    'types-tabulate==0.8.8',
+    'types-protobuf==5.29.1.20250403',
+    'types-setuptools==79.0.0.20250422',
+    'types-jinja2==2.11.9',
+    'types-colorama==0.4.6',
+    'filelock==3.18.0',
+    'junitparser==2.1.1',
+    'rich==14.1.0',
+    'optree==0.17.0',
+    'types-openpyxl==3.1.5.20250919',
+    'types-python-dateutil==2.9.0.20251008'
+]
+
 [[linter]]
 code = 'CLANGTIDY'
 include_patterns = [

Dockerfile

@@ -39,7 +39,7 @@ RUN chmod +x ~/miniconda.sh && \
     bash ~/miniconda.sh -b -p /opt/conda && \
     rm ~/miniconda.sh && \
     /opt/conda/bin/conda install -y python=${PYTHON_VERSION} cmake conda-build pyyaml numpy ipython && \
-    /opt/conda/bin/python -mpip install -r requirements.txt && \
+    /opt/conda/bin/python -m pip install -r requirements.txt && \
     /opt/conda/bin/conda clean -ya
 
 FROM dev-base as submodule-update

aten/src/ATen/CMakeLists.txt

@@ -256,6 +256,7 @@ endif()
 IF(USE_FBGEMM_GENAI)
   set(FBGEMM_THIRD_PARTY ${PROJECT_SOURCE_DIR}/third_party/fbgemm/external/)
   set(FBGEMM_GENAI_SRCS ${PROJECT_SOURCE_DIR}/third_party/fbgemm/fbgemm_gpu/experimental/gen_ai/src/quantize)
+
   if(USE_CUDA)
     # To avoid increasing the build time/binary size unnecessarily, use an allow-list of kernels to build.
     # If you want to integrate a kernel from FBGEMM into torch, you have to add it here.
@@ -292,58 +293,64 @@ IF(USE_FBGEMM_GENAI)
       "${FBGEMM_GENAI_SRCS}/cutlass_extensions/mx8mx8bf16_grouped/"
     )
 
-    target_include_directories(fbgemm_genai PUBLIC
+    target_include_directories(fbgemm_genai PRIVATE
       ${FBGEMM_THIRD_PARTY}/cutlass/include
       ${FBGEMM_THIRD_PARTY}/cutlass/tools/util/include
       ${fbgemm_genai_mx8mx8bf16_grouped}
       ${FBGEMM_GENAI_SRCS}/common/include/   # includes fbgemm_gpu/quantize/utils.h, fbgemm_gpu/quantize/tuning_cache.hpp
       ${FBGEMM_GENAI_SRCS}/include/          # includes fbgemm_gpu/torch_ops.h
     )
-  else()
-    if(USE_ROCM)
-      # Only include the kernels we want to build to avoid increasing binary size.
-      file(GLOB_RECURSE fbgemm_genai_native_rocm_hip
-        "${FBGEMM_GENAI_SRCS}/ck_extensions/fp8_rowwise_grouped/kernels/fp8_rowwise_grouped*.hip"
-        "${FBGEMM_GENAI_SRCS}/ck_extensions/fp8_rowwise_grouped/fp8_rowwise_grouped_gemm.hip")
-      set_source_files_properties(${fbgemm_genai_native_rocm_hip} PROPERTIES HIP_SOURCE_PROPERTY_FORMAT 1)
 
-      # Add additional HIPCC compiler flags for performance
+    # Add FBGEMM_GENAI include directories for torch_ops.h
-      set(FBGEMM_GENAI_EXTRA_HIPCC_FLAGS
+    list(APPEND ATen_CUDA_INCLUDE ${PROJECT_SOURCE_DIR}/third_party/fbgemm/fbgemm_gpu/experimental/gen_ai/src/quantize/include)
-        -mllvm
+    list(APPEND ATen_CUDA_INCLUDE ${PROJECT_SOURCE_DIR}/third_party/fbgemm/fbgemm_gpu/experimental/gen_ai/src/quantize/common/include)
-        -amdgpu-coerce-illegal-types=1
+  elseif(USE_ROCM)
-        -mllvm
+    # Only include the kernels we want to build to avoid increasing binary size.
-        -enable-post-misched=0
+    file(GLOB_RECURSE fbgemm_genai_native_rocm_hip
-        -mllvm
+      "${FBGEMM_GENAI_SRCS}/ck_extensions/fp8_rowwise_grouped/kernels/fp8_rowwise_grouped*.hip"
-        -greedy-reverse-local-assignment=1
+      "${FBGEMM_GENAI_SRCS}/ck_extensions/fp8_rowwise_grouped/fp8_rowwise_grouped_gemm.hip")
-        -fhip-new-launch-api)
+    set_source_files_properties(${fbgemm_genai_native_rocm_hip} PROPERTIES HIP_SOURCE_PROPERTY_FORMAT 1)
 
-      # Only compile for gfx942 for now.
+    # Add additional HIPCC compiler flags for performance
-      # This is rather hacky, I could not figure out a clean solution :(
+    set(FBGEMM_GENAI_EXTRA_HIPCC_FLAGS
-      set(HIP_CLANG_FLAGS_ORIGINAL ${HIP_CLANG_FLAGS})
+      -mllvm
-      string(REGEX REPLACE "--offload-arch=[^ ]*" "" FILTERED_HIP_CLANG_FLAGS "${HIP_CLANG_FLAGS}")
+      -amdgpu-coerce-illegal-types=1
-      if("gfx942" IN_LIST PYTORCH_ROCM_ARCH)
+      -mllvm
-        list(APPEND FILTERED_HIP_CLANG_FLAGS --offload-arch=gfx942;)
+      -enable-post-misched=0
-      endif()
+      -mllvm
-      set(HIP_CLANG_FLAGS ${FILTERED_HIP_CLANG_FLAGS})
+      -greedy-reverse-local-assignment=1
+      -fhip-new-launch-api)
 
-      hip_add_library(
+    # Only compile for gfx942 for now.
-        fbgemm_genai STATIC
+    # This is rather hacky, I could not figure out a clean solution :(
-        ${fbgemm_genai_native_rocm_hip}
+    set(HIP_CLANG_FLAGS_ORIGINAL ${HIP_CLANG_FLAGS})
-        HIPCC_OPTIONS ${HIP_HCC_FLAGS} ${FBGEMM_GENAI_EXTRA_HIPCC_FLAGS})
+    string(REGEX REPLACE "--offload-arch=[^ ]*" "" FILTERED_HIP_CLANG_FLAGS "${HIP_CLANG_FLAGS}")
-      set(HIP_CLANG_FLAGS ${HIP_CLANG_FLAGS_ORIGINAL})
+    if("gfx942" IN_LIST PYTORCH_ROCM_ARCH)
-      set_target_properties(fbgemm_genai PROPERTIES POSITION_INDEPENDENT_CODE ON)
+      list(APPEND FILTERED_HIP_CLANG_FLAGS --offload-arch=gfx942;)
-      target_compile_definitions(fbgemm_genai PRIVATE FBGEMM_GENAI_NO_EXTENDED_SHAPES)
-
-      target_include_directories(fbgemm_genai PUBLIC
-        # FBGEMM version of Composable Kernel is used due to some customizations
-        ${FBGEMM_THIRD_PARTY}/composable_kernel/include
-        ${FBGEMM_THIRD_PARTY}/composable_kernel/library/include
-        ${FBGEMM_THIRD_PARTY}/cutlass/include
-        ${FBGEMM_THIRD_PARTY}/cutlass/tools/util/include
-        ${FBGEMM_GENAI_SRCS}/common/include/   # includes fbgemm_gpu/quantize/utils.h, fbgemm_gpu/quantize/tuning_cache.hpp
-        ${FBGEMM_GENAI_SRCS}/include/          # includes fbgemm_gpu/torch_ops.h
-      )
     endif()
+    set(HIP_CLANG_FLAGS ${FILTERED_HIP_CLANG_FLAGS})
+
+    hip_add_library(
+      fbgemm_genai STATIC
+      ${fbgemm_genai_native_rocm_hip}
+      HIPCC_OPTIONS ${HIP_HCC_FLAGS} ${FBGEMM_GENAI_EXTRA_HIPCC_FLAGS})
+    set(HIP_CLANG_FLAGS ${HIP_CLANG_FLAGS_ORIGINAL})
+    set_target_properties(fbgemm_genai PROPERTIES POSITION_INDEPENDENT_CODE ON)
+    target_compile_definitions(fbgemm_genai PRIVATE FBGEMM_GENAI_NO_EXTENDED_SHAPES)
+
+    target_include_directories(fbgemm_genai PRIVATE
+      # FBGEMM version of Composable Kernel is used due to some customizations
+      ${FBGEMM_THIRD_PARTY}/composable_kernel/include
+      ${FBGEMM_THIRD_PARTY}/composable_kernel/library/include
+      ${FBGEMM_THIRD_PARTY}/cutlass/include
+      ${FBGEMM_THIRD_PARTY}/cutlass/tools/util/include
+      ${FBGEMM_GENAI_SRCS}/common/include/   # includes fbgemm_gpu/quantize/utils.h, fbgemm_gpu/quantize/tuning_cache.hpp
+      ${FBGEMM_GENAI_SRCS}/include/          # includes fbgemm_gpu/torch_ops.h
+    )
+
+    # Add FBGEMM_GENAI include directories for torch_ops.h
+    list(APPEND ATen_HIP_INCLUDE ${PROJECT_SOURCE_DIR}/third_party/fbgemm/fbgemm_gpu/experimental/gen_ai/src/quantize/include)
+    list(APPEND ATen_HIP_INCLUDE ${PROJECT_SOURCE_DIR}/third_party/fbgemm/fbgemm_gpu/experimental/gen_ai/src/quantize/common/include)
   endif()
 endif()
 
@@ -692,12 +699,6 @@ if(USE_CUDA AND NOT USE_ROCM)
   list(APPEND ATen_CUDA_INCLUDE ${CMAKE_CURRENT_SOURCE_DIR}/../../../third_party/cutlass/include)
   list(APPEND ATen_CUDA_INCLUDE ${CMAKE_CURRENT_SOURCE_DIR}/../../../third_party/cutlass/tools/util/include)
 
-  # Add FBGEMM_GENAI include directories for torch_ops.h
-  if(USE_FBGEMM_GENAI)
-    list(APPEND ATen_CUDA_INCLUDE ${CMAKE_CURRENT_SOURCE_DIR}/../../../third_party/fbgemm/fbgemm_gpu/experimental/gen_ai/src/quantize/include)
-    list(APPEND ATen_CUDA_INCLUDE ${CMAKE_CURRENT_SOURCE_DIR}/../../../third_party/fbgemm/fbgemm_gpu/experimental/gen_ai/src/quantize/common/include)
-  endif()
-
   if($ENV{ATEN_STATIC_CUDA})
     if(CUDA_VERSION VERSION_LESS_EQUAL 12.9)
       list(APPEND ATen_CUDA_DEPENDENCY_LIBS

aten/src/ATen/DLConvertor.cpp

@@ -389,37 +389,16 @@ void fillVersion<DLManagedTensorVersioned>(
 // constructed out of ATen tensor
 template <class T>
 T* toDLPackImpl(const Tensor& src) {
-  auto view = src;
-
-  // Detect whether there is need to normalize the strides
-  // Background: gh-83069
-  //
-  // However, normalizing strides can come at a high-cost
-  // to slow down toDLPack conversion 3x, so we
-  // only normalize if needed.
-  //
-  // The following code detects whether the src follows
-  // a continuous pattern. If the src follows such pattern (common-case)
-  // then we do not need to normalize the strides.
-  bool need_normalize_strides = src.dim() == 1 && src.size(0) == 1 && src.stride(0) != 1;
-  // less common case, try normalizing the strides
-  if (need_normalize_strides) {
-    // create a new tensor with possibly normalized strides
-    // gh-83069
-    auto shape = src.sizes();
-    view = src.as_strided(shape, {1}, src.storage_offset());
-  }
-
   ATenDLMTensor<T>* atDLMTensor(new ATenDLMTensor<T>);
-  atDLMTensor->handle = view;
+  atDLMTensor->handle = src;
   atDLMTensor->tensor.manager_ctx = atDLMTensor;
   atDLMTensor->tensor.deleter = &deleter<T>;
-  atDLMTensor->tensor.dl_tensor.data = view.data_ptr();
+  atDLMTensor->tensor.dl_tensor.data = src.data_ptr();
   atDLMTensor->tensor.dl_tensor.device = torchDeviceToDLDevice(src.device());
   atDLMTensor->tensor.dl_tensor.ndim = static_cast<int32_t>(src.dim());
   atDLMTensor->tensor.dl_tensor.dtype = getDLDataType(src);
-  atDLMTensor->tensor.dl_tensor.shape = const_cast<int64_t*>(view.sizes().data());
+  atDLMTensor->tensor.dl_tensor.shape = const_cast<int64_t*>(src.sizes().data());
-  atDLMTensor->tensor.dl_tensor.strides = const_cast<int64_t*>(view.strides().data());
+  atDLMTensor->tensor.dl_tensor.strides = const_cast<int64_t*>(src.strides().data());
   atDLMTensor->tensor.dl_tensor.byte_offset = 0;
   fillVersion(&atDLMTensor->tensor);
 

aten/src/ATen/core/PhiloxRNGEngine.h

@@ -229,10 +229,10 @@ private:
   }
 
 
-  static const uint32_t kPhilox10A = 0x9E3779B9;
+  static constexpr uint32_t kPhilox10A = 0x9E3779B9;
-  static const uint32_t kPhilox10B = 0xBB67AE85;
+  static constexpr uint32_t kPhilox10B = 0xBB67AE85;
-  static const uint32_t kPhiloxSA = 0xD2511F53;
+  static constexpr uint32_t kPhiloxSA = 0xD2511F53;
-  static const uint32_t kPhiloxSB = 0xCD9E8D57;
+  static constexpr uint32_t kPhiloxSB = 0xCD9E8D57;
 };
 
 typedef philox_engine Philox4_32;

aten/src/ATen/core/ivalue.h

@@ -624,7 +624,14 @@ struct TORCH_API IValue final {
   IValue(const c10::SymBool& i) {
     if (auto mi = i.maybe_as_bool()) {
       tag = Tag::Bool;
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
       payload.u.as_int = *mi;
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+      /* due to byteorder if value assigned as_int, as_bool actually is not set correctly */
+      payload.u.as_bool = *mi;
+#else
+#error Unexpected or undefined __BYTE_ORDER__
+#endif
     } else {
       tag = Tag::SymBool;
       payload.u.as_intrusive_ptr = i.toSymNodeImpl().release();

aten/src/ATen/cpu/vec/vec128/vec128.h

@@ -8,6 +8,7 @@
 #include <ATen/cpu/vec/vec128/vec128_bfloat16_neon.h>
 #include <ATen/cpu/vec/vec128/vec128_float_neon.h>
 #include <ATen/cpu/vec/vec128/vec128_half_neon.h>
+#include <ATen/cpu/vec/vec128/vec128_int_aarch64.h>
 #endif
 
 #include <ATen/cpu/vec/vec128/vec128_convert.h>

aten/src/ATen/cpu/vec/vec128/vec128_int_aarch64.h

@@ -0,0 +1,794 @@
+#pragma once
+
+#include <ATen/cpu/vec/intrinsics.h>
+#include <ATen/cpu/vec/vec_base.h>
+#include <c10/macros/Macros.h>
+#include <c10/util/irange.h>
+
+namespace at::vec {
+// Note [CPU_CAPABILITY namespace]
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+// This header, and all of its subheaders, will be compiled with
+// different architecture flags for each supported set of vector
+// intrinsics. So we need to make sure they aren't inadvertently
+// linked together. We do this by declaring objects in an `inline
+// namespace` which changes the name mangling, but can still be
+// accessed as `at::vec`.
+inline namespace CPU_CAPABILITY {
+
+#define VEC_INT_NEON_TEMPLATE(vl, bit)                                        \
+  template <>                                                                 \
+  struct is_vec_specialized_for<int##bit##_t> : std::bool_constant<true> {};  \
+                                                                              \
+  template <>                                                                 \
+  class Vectorized<int##bit##_t> {                                            \
+    using neon_type = int##bit##x##vl##_t;                                    \
+                                                                              \
+   private:                                                                   \
+    neon_type values;                                                         \
+                                                                              \
+   public:                                                                    \
+    using value_type = int##bit##_t;                                          \
+    using size_type = int;                                                    \
+    static constexpr size_type size() {                                       \
+      return vl;                                                              \
+    }                                                                         \
+    Vectorized() {                                                            \
+      values = vdupq_n_s##bit(0);                                             \
+    }                                                                         \
+    Vectorized(neon_type v) : values(v) {}                                    \
+    Vectorized(int##bit##_t val);                                             \
+    template <                                                                \
+        typename... Args,                                                     \
+        typename = std::enable_if_t<(sizeof...(Args) == size())>>             \
+    Vectorized(Args... vals) {                                                \
+      __at_align__ int##bit##_t buffer[size()] = {vals...};                   \
+      values = vld1q_s##bit(buffer);                                          \
+    }                                                                         \
+    operator neon_type() const {                                              \
+      return values;                                                          \
+    }                                                                         \
+    static Vectorized<int##bit##_t> loadu(                                    \
+        const void* ptr,                                                      \
+        int64_t count = size());                                              \
+    void store(void* ptr, int64_t count = size()) const;                      \
+    template <int64_t mask>                                                   \
+    static Vectorized<int##bit##_t> blend(                                    \
+        const Vectorized<int##bit##_t>& a,                                    \
+        const Vectorized<int##bit##_t>& b);                                   \
+    static Vectorized<int##bit##_t> blendv(                                   \
+        const Vectorized<int##bit##_t>& a,                                    \
+        const Vectorized<int##bit##_t>& b,                                    \
+        const Vectorized<int##bit##_t>& mask_) {                              \
+      return vbslq_s##bit(vreinterpretq_u##bit##_s##bit(mask_.values), b, a); \
+    }                                                                         \
+    template <typename step_t>                                                \
+    static Vectorized<int##bit##_t> arange(                                   \
+        value_type base = 0,                                                  \
+        step_t step = static_cast<step_t>(1));                                \
+    static Vectorized<int##bit##_t> set(                                      \
+        const Vectorized<int##bit##_t>& a,                                    \
+        const Vectorized<int##bit##_t>& b,                                    \
+        int64_t count = size());                                              \
+    const int##bit##_t& operator[](int idx) const = delete;                   \
+    int##bit##_t& operator[](int idx) = delete;                               \
+    Vectorized<int##bit##_t> abs() const {                                    \
+      return vabsq_s##bit(values);                                            \
+    }                                                                         \
+    Vectorized<int##bit##_t> real() const {                                   \
+      return values;                                                          \
+    }                                                                         \
+    Vectorized<int##bit##_t> imag() const {                                   \
+      return vdupq_n_s##bit(0);                                               \
+    }                                                                         \
+    Vectorized<int##bit##_t> conj() const {                                   \
+      return values;                                                          \
+    }                                                                         \
+    Vectorized<int##bit##_t> neg() const {                                    \
+      return vnegq_s##bit(values);                                            \
+    }                                                                         \
+    int##bit##_t reduce_add() const {                                         \
+      return vaddvq_s##bit(values);                                           \
+    }                                                                         \
+    int##bit##_t reduce_max() const;                                          \
+    Vectorized<int##bit##_t> operator==(                                      \
+        const Vectorized<int##bit##_t>& other) const {                        \
+      return Vectorized<value_type>(                                          \
+          vreinterpretq_s##bit##_u##bit(vceqq_s##bit(values, other.values))); \
+    }                                                                         \
+    Vectorized<int##bit##_t> operator!=(                                      \
+        const Vectorized<int##bit##_t>& other) const;                         \
+    Vectorized<int##bit##_t> operator<(                                       \
+        const Vectorized<int##bit##_t>& other) const {                        \
+      return Vectorized<value_type>(                                          \
+          vreinterpretq_s##bit##_u##bit(vcltq_s##bit(values, other.values))); \
+    }                                                                         \
+    Vectorized<int##bit##_t> operator<=(                                      \
+        const Vectorized<int##bit##_t>& other) const {                        \
+      return Vectorized<value_type>(                                          \
+          vreinterpretq_s##bit##_u##bit(vcleq_s##bit(values, other.values))); \
+    }                                                                         \
+    Vectorized<int##bit##_t> operator>(                                       \
+        const Vectorized<int##bit##_t>& other) const {                        \
+      return Vectorized<value_type>(                                          \
+          vreinterpretq_s##bit##_u##bit(vcgtq_s##bit(values, other.values))); \
+    }                                                                         \
+    Vectorized<int##bit##_t> operator>=(                                      \
+        const Vectorized<int##bit##_t>& other) const {                        \
+      return Vectorized<value_type>(                                          \
+          vreinterpretq_s##bit##_u##bit(vcgeq_s##bit(values, other.values))); \
+    }                                                                         \
+    Vectorized<int##bit##_t> eq(const Vectorized<int##bit##_t>& other) const; \
+    Vectorized<int##bit##_t> ne(const Vectorized<int##bit##_t>& other) const; \
+    Vectorized<int##bit##_t> gt(const Vectorized<int##bit##_t>& other) const; \
+    Vectorized<int##bit##_t> ge(const Vectorized<int##bit##_t>& other) const; \
+    Vectorized<int##bit##_t> lt(const Vectorized<int##bit##_t>& other) const; \
+    Vectorized<int##bit##_t> le(const Vectorized<int##bit##_t>& other) const; \
+  };                                                                          \
+  template <>                                                                 \
+  Vectorized<int##bit##_t> inline operator+(                                  \
+      const Vectorized<int##bit##_t>& a, const Vectorized<int##bit##_t>& b) { \
+    return vaddq_s##bit(a, b);                                                \
+  }                                                                           \
+  template <>                                                                 \
+  Vectorized<int##bit##_t> inline operator-(                                  \
+      const Vectorized<int##bit##_t>& a, const Vectorized<int##bit##_t>& b) { \
+    return vsubq_s##bit(a, b);                                                \
+  }                                                                           \
+  template <>                                                                 \
+  Vectorized<int##bit##_t> inline operator&(                                  \
+      const Vectorized<int##bit##_t>& a, const Vectorized<int##bit##_t>& b) { \
+    return vandq_s##bit(a, b);                                                \
+  }                                                                           \
+  template <>                                                                 \
+  Vectorized<int##bit##_t> inline operator|(                                  \
+      const Vectorized<int##bit##_t>& a, const Vectorized<int##bit##_t>& b) { \
+    return vorrq_s##bit(a, b);                                                \
+  }                                                                           \
+  template <>                                                                 \
+  Vectorized<int##bit##_t> inline operator^(                                  \
+      const Vectorized<int##bit##_t>& a, const Vectorized<int##bit##_t>& b) { \
+    return veorq_s##bit(a, b);                                                \
+  }                                                                           \
+  Vectorized<int##bit##_t> inline Vectorized<int##bit##_t>::eq(               \
+      const Vectorized<int##bit##_t>& other) const {                          \
+    return (*this == other) & Vectorized<int##bit##_t>(1);                    \
+  }                                                                           \
+  Vectorized<int##bit##_t> inline Vectorized<int##bit##_t>::ne(               \
+      const Vectorized<int##bit##_t>& other) const {                          \
+    return (*this != other) & Vectorized<int##bit##_t>(1);                    \
+  }                                                                           \
+  Vectorized<int##bit##_t> inline Vectorized<int##bit##_t>::gt(               \
+      const Vectorized<int##bit##_t>& other) const {                          \
+    return (*this > other) & Vectorized<int##bit##_t>(1);                     \
+  }                                                                           \
+  Vectorized<int##bit##_t> inline Vectorized<int##bit##_t>::ge(               \
+      const Vectorized<int##bit##_t>& other) const {                          \
+    return (*this >= other) & Vectorized<int##bit##_t>(1);                    \
+  }                                                                           \
+  Vectorized<int##bit##_t> inline Vectorized<int##bit##_t>::lt(               \
+      const Vectorized<int##bit##_t>& other) const {                          \
+    return (*this < other) & Vectorized<int##bit##_t>(1);                     \
+  }                                                                           \
+  Vectorized<int##bit##_t> inline Vectorized<int##bit##_t>::le(               \
+      const Vectorized<int##bit##_t>& other) const {                          \
+    return (*this <= other) & Vectorized<int##bit##_t>(1);                    \
+  }
+
+VEC_INT_NEON_TEMPLATE(2, 64)
+VEC_INT_NEON_TEMPLATE(4, 32)
+VEC_INT_NEON_TEMPLATE(8, 16)
+VEC_INT_NEON_TEMPLATE(16, 8)
+
+inline int32_t Vectorized<int32_t>::reduce_max() const {
+  return vmaxvq_s32(values);
+}
+
+inline int16_t Vectorized<int16_t>::reduce_max() const {
+  return vmaxvq_s16(values);
+}
+
+inline int8_t Vectorized<int8_t>::reduce_max() const {
+  return vmaxvq_s8(values);
+}
+
+template <>
+Vectorized<int32_t> inline operator*(
+    const Vectorized<int32_t>& a,
+    const Vectorized<int32_t>& b) {
+  return vmulq_s32(a, b);
+}
+
+template <>
+Vectorized<int16_t> inline operator*(
+    const Vectorized<int16_t>& a,
+    const Vectorized<int16_t>& b) {
+  return vmulq_s16(a, b);
+}
+
+template <>
+Vectorized<int8_t> inline operator*(
+    const Vectorized<int8_t>& a,
+    const Vectorized<int8_t>& b) {
+  return vmulq_s8(a, b);
+}
+
+template <>
+inline Vectorized<int64_t> operator~(const Vectorized<int64_t>& a) {
+  int64x2_t val = a;
+  return ~val;
+}
+
+template <>
+inline Vectorized<int32_t> operator~(const Vectorized<int32_t>& a) {
+  return vmvnq_s32(a);
+}
+
+template <>
+inline Vectorized<int16_t> operator~(const Vectorized<int16_t>& a) {
+  return vmvnq_s16(a);
+}
+
+template <>
+inline Vectorized<int8_t> operator~(const Vectorized<int8_t>& a) {
+  return vmvnq_s8(a);
+}
+
+inline Vectorized<int64_t> Vectorized<int64_t>::operator!=(
+    const Vectorized<int64_t>& other) const {
+  return ~(*this == other);
+}
+
+inline Vectorized<int32_t> Vectorized<int32_t>::operator!=(
+    const Vectorized<int32_t>& other) const {
+  return ~(*this == other);
+}
+
+inline Vectorized<int16_t> Vectorized<int16_t>::operator!=(
+    const Vectorized<int16_t>& other) const {
+  return ~(*this == other);
+}
+
+inline Vectorized<int8_t> Vectorized<int8_t>::operator!=(
+    const Vectorized<int8_t>& other) const {
+  return ~(*this == other);
+}
+
+template <>
+Vectorized<int32_t> inline minimum(
+    const Vectorized<int32_t>& a,
+    const Vectorized<int32_t>& b) {
+  return vminq_s32(a, b);
+}
+
+template <>
+Vectorized<int16_t> inline minimum(
+    const Vectorized<int16_t>& a,
+    const Vectorized<int16_t>& b) {
+  return vminq_s16(a, b);
+}
+
+template <>
+Vectorized<int8_t> inline minimum(
+    const Vectorized<int8_t>& a,
+    const Vectorized<int8_t>& b) {
+  return vminq_s8(a, b);
+}
+
+template <>
+Vectorized<int32_t> inline maximum(
+    const Vectorized<int32_t>& a,
+    const Vectorized<int32_t>& b) {
+  return vmaxq_s32(a, b);
+}
+
+template <>
+Vectorized<int16_t> inline maximum(
+    const Vectorized<int16_t>& a,
+    const Vectorized<int16_t>& b) {
+  return vmaxq_s16(a, b);
+}
+
+template <>
+Vectorized<int8_t> inline maximum(
+    const Vectorized<int8_t>& a,
+    const Vectorized<int8_t>& b) {
+  return vmaxq_s8(a, b);
+}
+
+template <int64_t mask>
+Vectorized<int64_t> Vectorized<int64_t>::blend(
+    const Vectorized<int64_t>& a,
+    const Vectorized<int64_t>& b) {
+  // Build an array of flags: each bit of element is 1 if the corresponding bit
+  // in 'mask' is set, 0 otherwise.
+  uint64x2_t maskArray = {
+      (mask & 1LL) ? 0xFFFFFFFFFFFFFFFF : 0,
+      (mask & 2LL) ? 0xFFFFFFFFFFFFFFFF : 0};
+  // Use BSL to select elements from b where the mask is 1, else from a
+  return vbslq_s64(maskArray, b.values, a.values);
+}
+
+template <int64_t mask>
+Vectorized<int32_t> Vectorized<int32_t>::blend(
+    const Vectorized<int32_t>& a,
+    const Vectorized<int32_t>& b) {
+  // Build an array of flags: each bit of element is 1 if the corresponding bit
+  // in 'mask' is set, 0 otherwise.
+  uint32x4_t maskArray = {
+      (mask & 1LL) ? 0xFFFFFFFF : 0,
+      (mask & 2LL) ? 0xFFFFFFFF : 0,
+      (mask & 4LL) ? 0xFFFFFFFF : 0,
+      (mask & 8LL) ? 0xFFFFFFFF : 0};
+  // Use BSL to select elements from b where the mask is 1, else from a
+  return vbslq_s32(maskArray, b.values, a.values);
+}
+
+template <int64_t mask>
+Vectorized<int16_t> Vectorized<int16_t>::blend(
+    const Vectorized<int16_t>& a,
+    const Vectorized<int16_t>& b) {
+  // Build an array of flags: each bit of element is 1 if the corresponding bit
+  // in 'mask' is set, 0 otherwise.
+  uint16x8_t maskArray = {
+      (mask & 1LL) ? 0xFFFF : 0,
+      (mask & 2LL) ? 0xFFFF : 0,
+      (mask & 4LL) ? 0xFFFF : 0,
+      (mask & 8LL) ? 0xFFFF : 0,
+      (mask & 16LL) ? 0xFFFF : 0,
+      (mask & 32LL) ? 0xFFFF : 0,
+      (mask & 64LL) ? 0xFFFF : 0,
+      (mask & 128LL) ? 0xFFFF : 0};
+  // Use BSL to select elements from b where the mask is 1, else from a
+  return vbslq_s16(maskArray, b.values, a.values);
+}
+
+template <int64_t mask>
+Vectorized<int8_t> Vectorized<int8_t>::blend(
+    const Vectorized<int8_t>& a,
+    const Vectorized<int8_t>& b) {
+  // Build an array of flags: each bit of element is 1 if the corresponding bit
+  // in 'mask' is set, 0 otherwise.
+  uint8x16_t maskArray = {
+      (mask & 1LL) ? 0xFF : 0,
+      (mask & 2LL) ? 0xFF : 0,
+      (mask & 4LL) ? 0xFF : 0,
+      (mask & 8LL) ? 0xFF : 0,
+      (mask & 16LL) ? 0xFF : 0,
+      (mask & 32LL) ? 0xFF : 0,
+      (mask & 64LL) ? 0xFF : 0,
+      (mask & 128LL) ? 0xFF : 0,
+      (mask & 256LL) ? 0xFF : 0,
+      (mask & 512LL) ? 0xFF : 0,
+      (mask & 1024LL) ? 0xFF : 0,
+      (mask & 2048LL) ? 0xFF : 0,
+      (mask & 4096LL) ? 0xFF : 0,
+      (mask & 8192LL) ? 0xFF : 0,
+      (mask & 16384LL) ? 0xFF : 0,
+      (mask & 32768LL) ? 0xFF : 0};
+  // Use BSL to select elements from b where the mask is 1, else from a
+  return vbslq_s8(maskArray, b.values, a.values);
+}
+
+#define VEC_INT_NEON_OPS(vl, bit)                                             \
+  inline Vectorized<int##bit##_t>::Vectorized(int##bit##_t val) {             \
+    values = vdupq_n_s##bit(val);                                             \
+  }                                                                           \
+  inline Vectorized<int##bit##_t> Vectorized<int##bit##_t>::loadu(            \
+      const void* ptr, int64_t count) {                                       \
+    if (count == size()) {                                                    \
+      return vld1q_s##bit(reinterpret_cast<const int##bit##_t*>(ptr));        \
+    } else {                                                                  \
+      __at_align__ int##bit##_t tmp_values[size()];                           \
+      for (const auto i : c10::irange(size())) {                              \
+        tmp_values[i] = 0;                                                    \
+      }                                                                       \
+      std::memcpy(                                                            \
+          tmp_values,                                                         \
+          reinterpret_cast<const int##bit##_t*>(ptr),                         \
+          count * sizeof(int##bit##_t));                                      \
+      return vld1q_s##bit(reinterpret_cast<const int##bit##_t*>(tmp_values)); \
+    }                                                                         \
+  }                                                                           \
+  inline void Vectorized<int##bit##_t>::store(void* ptr, int64_t count)       \
+      const {                                                                 \
+    if (count == size()) {                                                    \
+      vst1q_s##bit(reinterpret_cast<int##bit##_t*>(ptr), values);             \
+    } else {                                                                  \
+      int##bit##_t tmp_values[size()];                                        \
+      vst1q_s##bit(reinterpret_cast<int##bit##_t*>(tmp_values), values);      \
+      std::memcpy(ptr, tmp_values, count * sizeof(int##bit##_t));             \
+    }                                                                         \
+  }
+
+VEC_INT_NEON_OPS(2, 64)
+VEC_INT_NEON_OPS(4, 32)
+VEC_INT_NEON_OPS(8, 16)
+VEC_INT_NEON_OPS(16, 8)
+
+template <>
+Vectorized<int64_t> inline operator*(
+    const Vectorized<int64_t>& a,
+    const Vectorized<int64_t>& b) {
+  int64x2_t x = a;
+  int64x2_t y = b;
+  return x * y;
+}
+
+template <>
+Vectorized<int64_t> inline operator/(
+    const Vectorized<int64_t>& a,
+    const Vectorized<int64_t>& b) {
+  int64x2_t x = a;
+  int64x2_t y = b;
+  return x / y;
+}
+
+template <>
+Vectorized<int32_t> inline operator/(
+    const Vectorized<int32_t>& a,
+    const Vectorized<int32_t>& b) {
+  int32x4_t x = a;
+  int32x4_t y = b;
+  return x / y;
+}
+
+inline int64_t Vectorized<int64_t>::reduce_max() const {
+  return std::max(values[0], values[1]);
+}
+
+template <>
+Vectorized<int64_t> inline minimum(
+    const Vectorized<int64_t>& a,
+    const Vectorized<int64_t>& b) {
+  int64x2_t x = a;
+  int64x2_t y = b;
+  return {std::min(x[0], y[0]), std::min(x[1], y[1])};
+}
+
+template <>
+Vectorized<int64_t> inline maximum(
+    const Vectorized<int64_t>& a,
+    const Vectorized<int64_t>& b) {
+  int64x2_t x = a;
+  int64x2_t y = b;
+  return {std::max(x[0], y[0]), std::max(x[1], y[1])};
+}
+
+template <typename step_t>
+inline Vectorized<int64_t> Vectorized<int64_t>::arange(
+    int64_t base,
+    step_t step) {
+  const Vectorized<int64_t> base_vec(base);
+  const Vectorized<int64_t> step_vec(step);
+  const int64x2_t step_sizes = {0, 1};
+  return base_vec.values + step_sizes * step_vec.values;
+}
+
+template <typename step_t>
+inline Vectorized<int32_t> Vectorized<int32_t>::arange(
+    int32_t base,
+    step_t step) {
+  const Vectorized<int32_t> base_vec(base);
+  const Vectorized<int32_t> step_vec(step);
+  const int32x4_t step_sizes = {0, 1, 2, 3};
+  return vmlaq_s32(base_vec, step_sizes, step_vec);
+}
+
+template <typename step_t>
+inline Vectorized<int16_t> Vectorized<int16_t>::arange(
+    int16_t base,
+    step_t step) {
+  const Vectorized<int16_t> base_vec(base);
+  const Vectorized<int16_t> step_vec(step);
+  const int16x8_t step_sizes = {0, 1, 2, 3, 4, 5, 6, 7};
+  return vmlaq_s16(base_vec, step_sizes, step_vec);
+}
+
+template <typename step_t>
+inline Vectorized<int8_t> Vectorized<int8_t>::arange(int8_t base, step_t step) {
+  const Vectorized<int8_t> base_vec(base);
+  const Vectorized<int8_t> step_vec(step);
+  const int8x16_t step_sizes = {
+      0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
+  return vmlaq_s8(base_vec, step_sizes, step_vec);
+}
+
+template <>
+Vectorized<int64_t> inline operator>>(
+    const Vectorized<int64_t>& a,
+    const Vectorized<int64_t>& b) {
+  int64x2_t x = a;
+  int64x2_t y = b;
+  uint64x2_t u = vreinterpretq_u64_s64(y);
+  uint64x2_t z = {std::min(u[0], (uint64_t)63), std::min(u[1], (uint64_t)63)};
+  return x >> vreinterpretq_s64_u64(z);
+}
+
+template <>
+Vectorized<int32_t> inline operator>>(
+    const Vectorized<int32_t>& a,
+    const Vectorized<int32_t>& b) {
+  int32x4_t x = a;
+  int32x4_t y = b;
+  uint32x4_t bound = vdupq_n_u32(31);
+  uint32x4_t z = vminq_u32(vreinterpretq_u32_s32(y), bound);
+  return x >> vreinterpretq_s32_u32(z);
+}
+
+template <>
+Vectorized<int16_t> inline operator>>(
+    const Vectorized<int16_t>& a,
+    const Vectorized<int16_t>& b) {
+  int16x8_t x = a;
+  int16x8_t y = b;
+  uint16x8_t bound = vdupq_n_u16(15);
+  uint16x8_t z = vminq_u16(vreinterpretq_u16_s16(y), bound);
+  return x >> vreinterpretq_s16_u16(z);
+}
+
+template <>
+Vectorized<int8_t> inline operator>>(
+    const Vectorized<int8_t>& a,
+    const Vectorized<int8_t>& b) {
+  int8x16_t x = a;
+  int8x16_t y = b;
+  uint8x16_t bound = vdupq_n_u8(7);
+  int8x16_t z = vreinterpretq_s8_u8(vminq_u8(vreinterpretq_u8_s8(y), bound));
+  return x >> z;
+}
+
+template <>
+Vectorized<int64_t> inline operator<<(
+    const Vectorized<int64_t>& a,
+    const Vectorized<int64_t>& b) {
+  int64x2_t y = b;
+  uint64x2_t u = vreinterpretq_u64_s64(y);
+  uint64x2_t z = {std::min(u[0], (uint64_t)64), std::min(u[1], (uint64_t)64)};
+  return vshlq_s64(a, vreinterpretq_s64_u64(z));
+}
+
+template <>
+Vectorized<int32_t> inline operator<<(
+    const Vectorized<int32_t>& a,
+    const Vectorized<int32_t>& b) {
+  int32x4_t y = b;
+  uint32x4_t bound = vdupq_n_u32(32);
+  uint32x4_t z = vminq_u32(vreinterpretq_u32_s32(y), bound);
+  return vshlq_s32(a, vreinterpretq_s32_u32(z));
+}
+
+template <>
+Vectorized<int16_t> inline operator<<(
+    const Vectorized<int16_t>& a,
+    const Vectorized<int16_t>& b) {
+  int16x8_t y = b;
+  uint16x8_t bound = vdupq_n_u16(16);
+  uint16x8_t z = vminq_u16(vreinterpretq_u16_s16(y), bound);
+  return vshlq_s16(a, vreinterpretq_s16_u16(z));
+}
+
+template <>
+Vectorized<int8_t> inline operator<<(
+    const Vectorized<int8_t>& a,
+    const Vectorized<int8_t>& b) {
+  int8x16_t y = b;
+  uint8x16_t bound = vdupq_n_u8(8);
+  int8x16_t z = vreinterpretq_s8_u8(vminq_u8(vreinterpretq_u8_s8(y), bound));
+  return vshlq_s8(a, z);
+}
+
+inline Vectorized<int64_t> Vectorized<int64_t>::set(
+    const Vectorized<int64_t>& a,
+    const Vectorized<int64_t>& b,
+    int64_t count) {
+  if (count == 0) {
+    return a;
+  } else if (count >= 2) {
+    return b;
+  } else {
+    int64x2_t c = {b.values[0], a.values[1]};
+    return c;
+  }
+}
+
+inline Vectorized<int32_t> Vectorized<int32_t>::set(
+    const Vectorized<int32_t>& a,
+    const Vectorized<int32_t>& b,
+    int64_t count) {
+  if (count == 0) {
+    return a;
+  } else if (count >= 4) {
+    return b;
+  } else {
+    // Build an array of flags: each bit of element is 1 if the corresponding
+    // bit in 'mask' is set, 0 otherwise.
+    uint32x4_t maskArray = {
+        (count >= 1LL) ? 0xFFFFFFFF : 0,
+        (count >= 2LL) ? 0xFFFFFFFF : 0,
+        (count >= 3LL) ? 0xFFFFFFFF : 0,
+        0};
+    // Use BSL to select elements from b where the mask is 1, else from a
+    return vbslq_s32(maskArray, b.values, a.values);
+  }
+}
+
+inline Vectorized<int16_t> Vectorized<int16_t>::set(
+    const Vectorized<int16_t>& a,
+    const Vectorized<int16_t>& b,
+    int64_t count) {
+  if (count == 0) {
+    return a;
+  } else if (count >= 8) {
+    return b;
+  } else {
+    // Build an array of flags: each bit of element is 1 if the corresponding
+    // bit in 'mask' is set, 0 otherwise.
+    uint16x8_t maskArray = {
+        static_cast<uint16_t>((count >= 1LL) ? 0xFFFF : 0),
+        static_cast<uint16_t>((count >= 2LL) ? 0xFFFF : 0),
+        static_cast<uint16_t>((count >= 3LL) ? 0xFFFF : 0),
+        static_cast<uint16_t>((count >= 4LL) ? 0xFFFF : 0),
+        static_cast<uint16_t>((count >= 5LL) ? 0xFFFF : 0),
+        static_cast<uint16_t>((count >= 6LL) ? 0xFFFF : 0),
+        static_cast<uint16_t>((count >= 7LL) ? 0xFFFF : 0),
+        0};
+    // Use BSL to select elements from b where the mask is 1, else from a
+    return vbslq_s16(maskArray, b.values, a.values);
+  }
+}
+
+inline Vectorized<int8_t> Vectorized<int8_t>::set(
+    const Vectorized<int8_t>& a,
+    const Vectorized<int8_t>& b,
+    int64_t count) {
+  if (count == 0) {
+    return a;
+  } else if (count >= 16) {
+    return b;
+  } else {
+    // Build an array of flags: each bit of element is 1 if the corresponding
+    // bit in 'mask' is set, 0 otherwise.
+    uint8x16_t maskArray = {
+        static_cast<uint8_t>((count >= 1LL) ? 0xFF : 0),
+        static_cast<uint8_t>((count >= 2LL) ? 0xFF : 0),
+        static_cast<uint8_t>((count >= 3LL) ? 0xFF : 0),
+        static_cast<uint8_t>((count >= 4LL) ? 0xFF : 0),
+        static_cast<uint8_t>((count >= 5LL) ? 0xFF : 0),
+        static_cast<uint8_t>((count >= 6LL) ? 0xFF : 0),
+        static_cast<uint8_t>((count >= 7LL) ? 0xFF : 0),
+        static_cast<uint8_t>((count >= 8LL) ? 0xFF : 0),
+        static_cast<uint8_t>((count >= 9LL) ? 0xFF : 0),
+        static_cast<uint8_t>((count >= 10LL) ? 0xFF : 0),
+        static_cast<uint8_t>((count >= 11LL) ? 0xFF : 0),
+        static_cast<uint8_t>((count >= 12LL) ? 0xFF : 0),
+        static_cast<uint8_t>((count >= 13LL) ? 0xFF : 0),
+        static_cast<uint8_t>((count >= 14LL) ? 0xFF : 0),
+        static_cast<uint8_t>((count >= 15LL) ? 0xFF : 0),
+        0};
+
+    // Use BSL to select elements from b where the mask is 1, else from a
+    return vbslq_s8(maskArray, b.values, a.values);
+  }
+}
+
+template <>
+Vectorized<int16_t> inline operator/(
+    const Vectorized<int16_t>& a,
+    const Vectorized<int16_t>& b) {
+  Vectorized<int32_t> highBitsA = vmovl_high_s16(a);
+  Vectorized<int32_t> highBitsB = vmovl_high_s16(b);
+  Vectorized<int32_t> lowBitsA = vmovl_s16(vget_low_s16(a));
+  Vectorized<int32_t> lowBitsB = vmovl_s16(vget_low_s16(b));
+  int32x4_t highBitsResult = highBitsA / highBitsB;
+  int32x4_t lowBitsResult = lowBitsA / lowBitsB;
+  return vuzp1q_s16(
+      vreinterpretq_s16_s32(lowBitsResult),
+      vreinterpretq_s16_s32(highBitsResult));
+}
+
+template <>
+Vectorized<int8_t> inline operator/(
+    const Vectorized<int8_t>& a,
+    const Vectorized<int8_t>& b) {
+  Vectorized<int16_t> highBitsA = vmovl_high_s8(a);
+  Vectorized<int16_t> highBitsB = vmovl_high_s8(b);
+  Vectorized<int16_t> lowBitsA = vmovl_s8(vget_low_s8(a));
+  Vectorized<int16_t> lowBitsB = vmovl_s8(vget_low_s8(b));
+  int16x8_t highBitsResult = highBitsA / highBitsB;
+  int16x8_t lowBitsResult = lowBitsA / lowBitsB;
+  return vuzp1q_s8(
+      vreinterpretq_s8_s16(lowBitsResult),
+      vreinterpretq_s8_s16(highBitsResult));
+}
+
+template <>
+Vectorized<int64_t> inline clamp(
+    const Vectorized<int64_t>& a,
+    const Vectorized<int64_t>& min,
+    const Vectorized<int64_t>& max) {
+  return minimum(max, maximum(min, a));
+}
+
+template <>
+Vectorized<int32_t> inline clamp(
+    const Vectorized<int32_t>& a,
+    const Vectorized<int32_t>& min,
+    const Vectorized<int32_t>& max) {
+  return minimum(max, maximum(min, a));
+}
+
+template <>
+Vectorized<int16_t> inline clamp(
+    const Vectorized<int16_t>& a,
+    const Vectorized<int16_t>& min,
+    const Vectorized<int16_t>& max) {
+  return minimum(max, maximum(min, a));
+}
+
+template <>
+Vectorized<int8_t> inline clamp(
+    const Vectorized<int8_t>& a,
+    const Vectorized<int8_t>& min,
+    const Vectorized<int8_t>& max) {
+  return minimum(max, maximum(min, a));
+}
+
+template <>
+Vectorized<int64_t> inline clamp_max(
+    const Vectorized<int64_t>& a,
+    const Vectorized<int64_t>& max) {
+  return minimum(max, a);
+}
+
+template <>
+Vectorized<int32_t> inline clamp_max(
+    const Vectorized<int32_t>& a,
+    const Vectorized<int32_t>& max) {
+  return minimum(max, a);
+}
+
+template <>
+Vectorized<int16_t> inline clamp_max(
+    const Vectorized<int16_t>& a,
+    const Vectorized<int16_t>& max) {
+  return minimum(max, a);
+}
+
+template <>
+Vectorized<int8_t> inline clamp_max(
+    const Vectorized<int8_t>& a,
+    const Vectorized<int8_t>& max) {
+  return minimum(max, a);
+}
+
+template <>
+Vectorized<int64_t> inline clamp_min(
+    const Vectorized<int64_t>& a,
+    const Vectorized<int64_t>& min) {
+  return maximum(min, a);
+}
+
+template <>
+Vectorized<int32_t> inline clamp_min(
+    const Vectorized<int32_t>& a,
+    const Vectorized<int32_t>& min) {
+  return maximum(min, a);
+}
+
+template <>
+Vectorized<int16_t> inline clamp_min(
+    const Vectorized<int16_t>& a,
+    const Vectorized<int16_t>& min) {
+  return maximum(min, a);
+}
+
+template <>
+Vectorized<int8_t> inline clamp_min(
+    const Vectorized<int8_t>& a,
+    const Vectorized<int8_t>& min) {
+  return maximum(min, a);
+}
+
+} // namespace CPU_CAPABILITY
+} // namespace at::vec

aten/src/ATen/cpu/vec/vec256/vec256_qint.h

@@ -1377,7 +1377,7 @@ Vectorized<c10::quint8> inline maximum(
 #if (defined(__aarch64__) && !defined(CPU_CAPABILITY_SVE256))
 std::pair<Vectorized<float>, Vectorized<float>> inline convert_int8_to_float(
     at::vec::Vectorized<int8_t> src) {
-  auto s8x8 = vld1_s8(src.operator const int8_t*());
+  auto s8x8 = vget_low_s8(src);
   auto s16x8 = vmovl_s8(s8x8);
 
   auto s32x4_hi = vmovl_s16(vget_high_s16(s16x8));
@@ -1402,7 +1402,7 @@ std::pair<Vectorized<float>, Vectorized<float>> inline convert_int8_to_float(
 
 Vectorized<float> inline convert_int8_half_register_to_float(
     at::vec::Vectorized<int8_t> src) {
-  auto s8x8 = vld1_s8(src.operator const int8_t*());
+  auto s8x8 = vget_low_s8(src);
   auto s16x8 = vmovl_s8(s8x8);
 
   auto s32x4_lo = vmovl_s16(vget_low_s16(s16x8));

aten/src/ATen/cuda/CUDABlas.cpp

@@ -16,6 +16,8 @@
 #include <c10/util/irange.h>
 #include <c10/core/ScalarType.h>
 
+#include <ATen/cuda/detail/BLASConstants.h>
+
 #ifdef USE_ROCM
 #include <c10/cuda/CUDAStream.h>
 #include <hipblaslt/hipblaslt-ext.hpp>
@@ -1954,13 +1956,15 @@ void scaled_gemm(
     const void *result_scale_ptr,
     int64_t result_ld,
     ScalarType result_dtype,
-    bool use_fast_accum) {
+    bool use_fast_accum,
+    const std::optional<Tensor>& alpha) {
   // Note: see `cublasCommonArgs` for various non-intuitive manupulations
   // of input arguments to this function.
   const auto computeType = CUBLAS_COMPUTE_32F;
   const auto scaleType = CUDA_R_32F;
-  const float alpha_val = 1.0;
+  // Note: alpha_val may change later depending on user-passed argument
-  const float beta_val = 0.0;
+  float alpha_val = 1.0;
+  float beta_val = 0.0;
   CuBlasLtMatmulDescriptor computeDesc(computeType, scaleType);
   computeDesc.setAttribute(CUBLASLT_MATMUL_DESC_TRANSA, _cublasOpFromChar(transa));
   computeDesc.setAttribute(CUBLASLT_MATMUL_DESC_TRANSB, _cublasOpFromChar(transb));
@@ -2031,6 +2035,33 @@ void scaled_gemm(
     computeDesc.setAttribute(CUBLASLT_MATMUL_DESC_EPILOGUE, CUBLASLT_EPILOGUE_BIAS);
     computeDesc.setAttribute(CUBLASLT_MATMUL_DESC_BIAS_DATA_TYPE, ScalarTypeToCudaDataType(bias_dtype));
   }
+
+  // Handle user-passed alpha
+  float *alpha_ptr = &alpha_val;
+  float *beta_ptr = &beta_val;
+
+  if (alpha.has_value()) {
+    auto& a = alpha.value();
+
+    // if device-tensor
+    if (a.is_cuda()) {
+      // NOTE: there are lifetime requirements on device-side pointers for alpha/beta -- the value must be
+      //       valid & correct until the cublas call finishes (not is scheduled like host-side values). Thus
+      //       we need to use allocations for alpha/beta that have some guarantees on lifetime - a statically
+      //       managed 4B buffer for alpha that we'll copy the passed alpha value into, and constant memory
+      //       for beta respectively.
+      float *user_alpha_ptr = at::cuda::detail::get_user_alpha_ptr();
+      at::Tensor user_alpha = at::from_blob(user_alpha_ptr, {1}, TensorOptions().device(kCUDA).dtype(kFloat));
+      user_alpha.copy_(a);
+      // Tell cublasLt we're using device-side pointers for alpha/beta
+      auto pointer_mode = CUBLASLT_POINTER_MODE_DEVICE;
+      computeDesc.setAttribute(CUBLASLT_MATMUL_DESC_POINTER_MODE, pointer_mode);
+      alpha_ptr = user_alpha.data_ptr<float>();
+      beta_ptr = at::cuda::detail::get_cublas_device_zero();
+    } else {
+      alpha_val = a.item<float>();
+    }
+  }
     // For other data types, use the get_scale_mode function based on scaling type
     // The SCALE_MODE attrs only exist in cuBLAS 12.8+/ROCm 7.0 or in recent hipblaslt,
     // but we must invoke get_scale_mode anyways to trigger the version checks.
@@ -2048,6 +2079,7 @@ void scaled_gemm(
   cublasLtMatmulHeuristicResult_t heuristicResult = {};
   int returnedResult = 0;
   cublasLtHandle_t ltHandle = at::cuda::getCurrentCUDABlasLtHandle();
+
   TORCH_CUDABLAS_CHECK(cublasLtMatmulAlgoGetHeuristic(
       ltHandle,
       computeDesc.descriptor(),
@@ -2088,10 +2120,10 @@ void scaled_gemm(
         auto is_valid_status = hipblaslt_ext::matmulIsAlgoSupported(
                 ltHandle,
                 computeDesc.descriptor(),
-                &alpha_val,
+                alpha_ptr,
                 Adesc.descriptor(),
                 Bdesc.descriptor(),
-                &beta_val,
+                beta_ptr,
                 Cdesc.descriptor(),
                 Ddesc.descriptor(),
                 all_algos[i].algo,
@@ -2110,17 +2142,14 @@ void scaled_gemm(
   cublasStatus_t cublasStatus = cublasLtMatmul(
       ltHandle,
       computeDesc.descriptor(),
-      &alpha_val,
+      alpha_ptr,
       mat1_ptr,
       Adesc.descriptor(),
       mat2_ptr,
       Bdesc.descriptor(),
-      &beta_val,
+      beta_ptr,
-#ifdef USE_ROCM
+      // NOTE: always use result_ptr here, because cuBLASLt w/device beta=0 can't handle nullptr either
       result_ptr, // unused, since beta_val is 0, but hipblaslt can't handle nullptr
-#else
-      nullptr,
-#endif // ifdef USE_ROCM
       Cdesc.descriptor(),
       result_ptr,
       Ddesc.descriptor(),

aten/src/ATen/cuda/CUDABlas.h

@@ -161,7 +161,8 @@ void scaled_gemm(
     const void* result_scale_ptr,
     int64_t result_ld,
     ScalarType result_dtype,
-    bool use_fast_accum);
+    bool use_fast_accum,
+    const std::optional<Tensor>& alpha);
 
 #define CUDABLAS_BGEMM_ARGTYPES(Dtype)  CUDABLAS_BGEMM_ARGTYPES_AND_C_DTYPE(Dtype, Dtype)
 

aten/src/ATen/cuda/CUDAGeneratorImpl.cpp

@@ -325,9 +325,9 @@ uint64_t CUDAGeneratorImpl::seed() {
  */
 c10::intrusive_ptr<c10::TensorImpl> CUDAGeneratorImpl::get_state() const {
   // The RNG state comprises the seed, and an offset used for Philox.
-  static const size_t seed_size = sizeof(uint64_t);
+  constexpr size_t seed_size = sizeof(uint64_t);
-  static const size_t offset_size = sizeof(int64_t);
+  constexpr size_t offset_size = sizeof(int64_t);
-  static const size_t total_size = seed_size + offset_size;
+  constexpr size_t total_size = seed_size + offset_size;
 
   auto state_tensor = at::detail::empty_cpu({(int64_t)total_size}, ScalarType::Byte, std::nullopt, std::nullopt, std::nullopt, std::nullopt);
   auto rng_state = state_tensor.data_ptr<uint8_t>();
@@ -346,9 +346,9 @@ c10::intrusive_ptr<c10::TensorImpl> CUDAGeneratorImpl::get_state() const {
  * and size of the internal state.
  */
 void CUDAGeneratorImpl::set_state(const c10::TensorImpl& new_state) {
-  static const size_t seed_size = sizeof(uint64_t);
+  constexpr size_t seed_size = sizeof(uint64_t);
-  static const size_t offset_size = sizeof(int64_t);
+  constexpr size_t offset_size = sizeof(int64_t);
-  static const size_t total_size = seed_size + offset_size;
+  constexpr size_t total_size = seed_size + offset_size;
 
   detail::check_rng_state(new_state);
 

aten/src/ATen/cuda/detail/BLASConstants.cu

@@ -0,0 +1,54 @@
+#include <ATen/Functions.h>
+#include <ATen/Tensor.h>
+#include <ATen/cuda/Exceptions.h>
+
+#include <mutex>
+
+namespace at {
+namespace cuda {
+namespace detail {
+
+__device__ __constant__ float cublas_one_device;
+__device__ __constant__ float cublas_zero_device;
+
+float *get_cublas_device_one() {
+  static c10::once_flag init_flag;
+
+  c10::call_once(init_flag, []() {
+    const float one = 1.f;
+    AT_CUDA_CHECK(cudaMemcpyToSymbol(cublas_one_device, &one, sizeof(float)));
+  });
+
+  float *ptr;
+  AT_CUDA_CHECK(cudaGetSymbolAddress(reinterpret_cast<void**>(&ptr), cublas_one_device));
+  return ptr;
+}
+
+float *get_cublas_device_zero() {
+  static c10::once_flag init_flag;
+
+  c10::call_once(init_flag, []() {
+    const float zero = 0.f;
+    AT_CUDA_CHECK(cudaMemcpyToSymbol(cublas_zero_device, &zero, sizeof(float)));
+  });
+
+  float *ptr;
+  AT_CUDA_CHECK(cudaGetSymbolAddress(reinterpret_cast<void**>(&ptr), cublas_zero_device));
+  return ptr;
+}
+
+float *get_user_alpha_ptr() {
+  static float *alpha_ptr;
+
+  static c10::once_flag init_flag;
+
+  c10::call_once(init_flag, []() {
+    AT_CUDA_CHECK(cudaMalloc(&alpha_ptr, sizeof(float)));
+  });
+
+  return alpha_ptr;
+}
+
+} // namespace detail
+} // namespace cuda
+} // namespace at

aten/src/ATen/cuda/detail/BLASConstants.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include <ATen/core/TensorBase.h>
+
+namespace at::cuda::detail {
+
+float *get_cublas_device_one();
+float *get_cublas_device_zero();
+float *get_user_alpha_ptr();
+
+} // namespace at::cuda::detail

aten/src/ATen/cuda/tunable/GemmCommon.h

@@ -13,6 +13,7 @@
 #include <c10/core/ScalarType.h>
 
 #include <ATen/cuda/tunable/TunableOp.h>
+#include <ATen/cuda/tunable/Tunable.h>
 #include <ATen/cuda/CUDABlas.h>
 #include <ATen/cuda/Exceptions.h>
 #include <c10/util/StringUtil.h>
@@ -150,6 +151,7 @@ inline std::string ScalarTypeToBLASType(c10::ScalarType scalar_type) {
       BLASType = "unknown";
   }
   return BLASType;
+
 }
 
 // Similar to Compute Type in GemmRocblas.h
@@ -244,33 +246,25 @@ inline std::string to_string_epilogue(const at::cuda::blas::GEMMAndBiasActivatio
 
 namespace detail {
 
-static bool NumericalCheck(ScalarType dtype, void* c, void* other_c, int64_t size) {
+static bool NumericalCheck(ScalarType dtype, void* c, void* other_c, int64_t size, const NumericalCheckConfig& config) {
+
+  if (!config.enabled) {
+    return true; // skip when disabled
+  }
+
   auto options = at::TensorOptions().dtype(dtype).device(at::kCUDA);
-  // comparison done as 1D tensor
   at::Tensor ref = at::from_blob(c,       {size}, options);
   at::Tensor oth = at::from_blob(other_c, {size}, options);
   at::Tensor ref_float = ref.to(at::kFloat);
   at::Tensor oth_float = oth.to(at::kFloat);
-  std::vector<double> atols{1e-1, 1e-2, 1e-3, 1e-4, 1e-5};
-  std::vector<double> rtols{1e-1, 1e-2, 1e-3, 1e-4, 1e-5};
-  double last_succeed_atol = 1;
-  double last_succeed_rtol = 1;
-  for (auto& atol : atols) {
-    for (auto& rtol : rtols) {
-      if (at::allclose(ref_float, oth_float, rtol, atol)) {
-        last_succeed_atol = atol;
-        last_succeed_rtol = rtol;
-      }
-    }
-  }
-  if (last_succeed_atol == 1) {
-    return false;
-  }
-  else {
-    TUNABLE_LOG3("├──verify numerics: atol=", last_succeed_atol, ", rtol=", last_succeed_rtol);
-  }
 
-  return true;
+  const bool ok = at::allclose(ref_float, oth_float, config.rtol, config.atol);
+  if (ok) {
+    TUNABLE_LOG3("├──verify numerics: PASSED with atol=", config.atol, ", rtol=", config.rtol);
+  } else {
+    TUNABLE_LOG3("├──verify numerics: FAILED with atol=", config.atol, ", rtol=", config.rtol);
+  }
+  return ok;
 }
 
 }
@@ -355,8 +349,10 @@ struct GemmParams : OpParams {
   }
 
   TuningStatus NumericalCheck(GemmParams<T> *other) {
+    auto* ctx = getTuningContext();
+    auto cfg = ctx->GetNumericalCheckConfig();
     auto c_dtype = c10::CppTypeToScalarType<T>::value;
-    return detail::NumericalCheck(c_dtype, c, other->c, GetSizeC()/sizeof(T)) ? OK : FAIL;
+    return detail::NumericalCheck(c_dtype, c, other->c, GetSizeC()/sizeof(T), cfg) ? OK : FAIL;
   }
 
   char transa{};
@@ -449,8 +445,10 @@ struct GemmAndBiasParams : OpParams {
   }
 
   TuningStatus NumericalCheck(GemmAndBiasParams<T> *other) {
+    auto* ctx = getTuningContext();
+    auto cfg = ctx->GetNumericalCheckConfig();
     auto c_dtype = c10::CppTypeToScalarType<T>::value;
-    return detail::NumericalCheck(c_dtype, c, other->c, GetSizeC()/sizeof(T)) ? OK : FAIL;
+    return detail::NumericalCheck(c_dtype, c, other->c, GetSizeC()/sizeof(T), cfg) ? OK : FAIL;
   }
 
   char transa{};
@@ -546,8 +544,10 @@ struct GemmStridedBatchedParams : OpParams {
   }
 
   TuningStatus NumericalCheck(GemmStridedBatchedParams<T> *other) {
+    auto* ctx = getTuningContext();
+    auto cfg = ctx->GetNumericalCheckConfig();
     auto c_dtype = c10::CppTypeToScalarType<C_Dtype>::value;
-    return detail::NumericalCheck(c_dtype, c, other->c, GetSizeC()/sizeof(T)) ? OK : FAIL;
+    return detail::NumericalCheck(c_dtype, c, other->c, GetSizeC()/sizeof(T), cfg) ? OK : FAIL;
   }
 
   char transa{};
@@ -663,7 +663,9 @@ struct ScaledGemmParams : OpParams {
   }
 
   TuningStatus NumericalCheck(ScaledGemmParams<T> *other) {
-    return detail::NumericalCheck(c_dtype, c, other->c, GetSizeC()/sizeof(T)) ? OK : FAIL;
+    auto* ctx = getTuningContext();
+    auto cfg = ctx->GetNumericalCheckConfig();
+    return detail::NumericalCheck(c_dtype, c, other->c, GetSizeC()/sizeof(T), cfg) ? OK : FAIL;
   }
 
   char transa{};

aten/src/ATen/cuda/tunable/README.md

@@ -145,7 +145,7 @@ programmatically since the settings become fixed. Use the C++ or Python APIs ins
 | PYTORCH_TUNABLEOP_VERBOSE | Default is 0. Set to 1 to enable basic logging. 2 for basic tuning status. 3 for full trace. |
 | PYTORCH_TUNABLEOP_VERBOSE_FILENAME | Default is "err" for stderr. Set to "out" for stdout or a filename for capturing verbose logging. |
 | PYTORCH_TUNABLEOP_FILENAME | Default is 'tunableop_results.csv'. |
-| PYTORCH_TUNABLEOP_NUMERICAL_CHECK | Default is 0. Set to 1 to enable. |
+| PYTORCH_TUNABLEOP_NUMERICAL_CHECK | Default is off. Set 'atol_rtol' to enable, for example "1e-5_1e-5". |
 | PYTORCH_TUNABLEOP_ROCBLAS_ENABLED | Default is 1. Set to 0 to disable rocblas being considered during tuning. |
 | PYTORCH_TUNABLEOP_HIPBLASLT_ENABLED | Default is 1. Set to 0 to disable hipblaslt being considered during tuning. |
 | PYTORCH_TUNABLEOP_MAX_TUNING_DURATION_MS | Default is 30. Unit is milliseconds. |
@@ -173,10 +173,9 @@ All python APIs exist in the `torch.cuda.tunable` module.
 | get_max_tuning_iterations() -> int | |
 | set_filename(filename: str, insert_device_ordinal: bool = False) -> None | |
 | get_filename() -> str | |
+| set_numerical_check_tolerances(enable: bool, atol: float, rtol: float) -> None | Enable or disable numerical checking; atol and rtol default to 1e-5.
 | get_results() -> Tuple[str, str, str, float] | |
 | get_validators() -> Tuple[str, str] | |
-| write_file_on_exit(val: bool) -> None | Default is True. |
-| write_file(filename: Optional[str] = None) -> None | If filename not given, it will call get_filename(). |
 | read_file(filename: Optional[str] = None) -> None | If filename not given, it will call get_filename(). |
 | tune_gemm_in_file(filename: str) -> None | read an untuned file and tune GEMMs in it. |
 | mgpu_tune_gemm_in_file(filename_pattern: str, num_gpus: int) -> None: -> None | read one or more untuned files and tune all unique GEMMs on one or more GPUs. |

aten/src/ATen/cuda/tunable/Tunable.cpp

@@ -107,14 +107,30 @@ void TuningResultsManager::AddImpl(const std::string& op_signature,
 }
 
 void TuningResultsManager::Add(const std::string& op_signature, const std::string& params_signature, ResultEntry best) {
-  std::scoped_lock l{lock_};
+  bool is_new = false;
+  ResultEntry inserted = ResultEntry::Null();
 
-  auto it = results_.find(op_signature);
+  // ---- mutate maps under results lock ----
-  if (it == results_.end()) {
+  {
-    it = results_.insert({op_signature, {}}).first;
+    std::scoped_lock l{lock_};
+    auto& km = results_[op_signature];  // creates if missing
+    is_new = (km.find(params_signature) == km.end());
+    AddImpl(op_signature, params_signature, std::move(best), km);
+    if (is_new) {
+      inserted = km.at(params_signature);  // snapshot for I/O after unlocking
+    }
+  }
+   if (!is_new) return;  // only write once per unique (op, params)
+
+   TuningContext* ctx = getTuningContext();
+  if (ctx->IsTuningEnabled() && !ctx->IsRecordUntunedEnabled()) {
+    InitRealtimeAppend(ctx->GetFilename(), ctx->GetTuningResultsValidator().GetAllValidators());
+
+    if (is_new && realtime_out_ && realtime_out_->good()) {
+      AppendResultLine(op_signature, params_signature, inserted);
+    }
   }
 
-  AddImpl(op_signature, params_signature, std::move(best), it->second);
 }
 
 void TuningResultsManager::RecordUntuned( std::ofstream& untuned_file, const std::string& op_signature,
@@ -150,6 +166,77 @@ void TuningResultsManager::RecordUntuned( std::ofstream& untuned_file, const std
   }
 }
 
+void TuningResultsManager::InitRealtimeAppend(const std::string& filename, const std::unordered_map<std::string, std::string>& validators) {
+  std::scoped_lock fl{realtime_file_mutex_};
+
+  if (realtime_out_ && realtime_out_->good() && realtime_filename_ == filename) {
+    return;
+  }
+
+  if (realtime_out_ && realtime_filename_ != filename) {
+    realtime_out_->flush();
+    realtime_out_->close();
+    realtime_out_.reset();
+    validators_written_ = false;
+  }
+
+  bool file_exists = false;
+  bool file_empty = true;
+
+  {
+    std::ifstream check_file(filename);
+    if (check_file.good()) {
+      file_exists = true;
+      file_empty = (check_file.peek() == std::ifstream::traits_type::eof());
+    }
+  }
+
+  realtime_out_ = std::make_unique<std::ofstream>(filename, std::ios::out | std::ios::app);
+
+  if (!realtime_out_->good()) {
+    TORCH_WARN("TunableOp realtime append: failed to open '", filename,"'");
+    realtime_out_.reset();
+    return;
+  }
+
+  if(!file_exists || file_empty) {
+    for(const auto& [key, val] : validators) {
+      (*realtime_out_) << "Validator," << key << "," << val << std::endl;
+      realtime_out_->flush();
+    }
+    validators_written_ = true;
+
+    TUNABLE_LOG2("Wrote validators to realtime output file");
+  }
+
+  realtime_filename_ = filename;
+}
+
+void TuningResultsManager::AppendResultLine(const std::string& op_sig, const std::string& param_sig, const ResultEntry& result) {
+  std::scoped_lock fl{realtime_file_mutex_};
+
+  if(!realtime_out_ || !realtime_out_->good()) {
+    return;
+  }
+
+  (*realtime_out_) << op_sig << "," << param_sig << "," << result << std::endl;
+  realtime_out_->flush(); //ensure immediate write to disk
+
+  TUNABLE_LOG3("Realtime append: ", op_sig, "(", param_sig, ") -> ", result);
+}
+
+void TuningResultsManager::CloseRealtimeAppend() {
+  std::scoped_lock fl{realtime_file_mutex_};
+
+
+  if(realtime_out_) {
+    realtime_out_->flush();
+    realtime_out_->close();
+    realtime_out_.reset();
+    TUNABLE_LOG2("Closed realtime output file");
+  }
+}
+
 void TuningResultsManager::Delete(const std::string& op_signature, const std::string& params_signature) {
   std::scoped_lock l{lock_};
 
@@ -396,7 +483,6 @@ TuningContext::TuningContext() :
     tuning_enable_{true},
     record_untuned_enable_{false},
     manager_initialized_{false},
-    write_file_on_exit_{true},
     numerics_check_enable_{false},
     max_tuning_duration_ms_{30},
     max_tuning_iterations_{100},
@@ -417,20 +503,8 @@ TuningContext::~TuningContext() {
     // but doesn't do any computation itself.
     return;
   }
-  auto filename = GetFilename();
+  TUNABLE_LOG1("Closing File");
-  if (IsTunableOpEnabled() && IsTuningEnabled() && !filename.empty() && write_file_on_exit_) {
+  GetTuningResultsManager().CloseRealtimeAppend(); // Since, we do instant logging by default now.
-    if (results_count_from_input_file_ < GetTuningResultsManager().GetSize()) {
-      if (results_count_from_input_file_ > 0) {
-        TUNABLE_LOG1("additional tuning results available, rewriting file ", filename);
-      }
-      else {
-        TUNABLE_LOG1("writing file ", filename);
-      }
-      if (!WriteFile(filename)) {
-        TUNABLE_LOG1("failed to write file ", filename);
-      }
-    }
-  }
 
   if (untuned_file_.good()) {
     untuned_file_.close();
@@ -511,20 +585,54 @@ std::ofstream& TuningContext::GetUntunedFile(){
   return untuned_file_;
 }
 
-void TuningContext::WriteFileOnExit(bool value) {
-  write_file_on_exit_ = value;
-}
 
 void TuningContext::EnableNumericsCheck(bool value) {
   numerics_check_enable_ = value;
 }
 
-bool TuningContext::IsNumericsCheckEnabled() const {
+NumericalCheckConfig TuningContext::GetNumericalCheckConfig() const {
-  const auto env = c10::utils::get_env("PYTORCH_TUNABLEOP_NUMERICAL_CHECK");
+  const auto env_opt = c10::utils::get_env("PYTORCH_TUNABLEOP_NUMERICAL_CHECK");
-  if (env == "1") {
+
-    return true;
+  if (!env_opt.has_value()) {
+    return numerics_cfg_;
   }
-  return numerics_check_enable_;
+
+  const std::string& env = env_opt.value();
+
+  if (env == "0") {
+    return NumericalCheckConfig(false, 1e-5, 1e-5);
+  }
+
+  const size_t underscore = env.find('_');
+
+  TORCH_CHECK(
+      underscore != std::string::npos,
+      "Invalid PYTORCH_TUNABLEOP_NUMERICAL_CHECK format. "
+      "Expected 'atol_rtol', got: ",
+      env);
+
+  double atol = 0.0;
+  double rtol = 0.0;
+
+  try {
+    atol = std::stod(env.substr(0, underscore));
+    rtol = std::stod(env.substr(underscore + 1));
+  } catch (const std::exception& e) {
+    TORCH_CHECK(false, "Failed to parse PYTORCH_TUNABLEOP_NUMERICAL_CHECK: ", e.what());
+  }
+
+  TORCH_CHECK( atol > 0.0 && rtol > 0.0, "Tolerance values must be positive. atol=", atol, ", rtol=", rtol);
+  return NumericalCheckConfig(true, atol, rtol);
+}
+
+void TuningContext::SetNumericalCheckConfig(bool enabled, double atol, double rtol) {
+  TORCH_CHECK(atol > 0.0 && rtol > 0.0, "Numerical check tolerances must be positive");
+  numerics_cfg_ = {enabled, atol, rtol};
+}
+
+bool TuningContext::IsNumericsCheckEnabled() const {
+  const auto cfg = GetNumericalCheckConfig();
+  return cfg.enabled || numerics_check_enable_;
 }
 
 void TuningContext::SetMaxTuningDurationMs(int max_duration_ms) {
@@ -634,11 +742,6 @@ TuningResultsManager& TuningContext::GetTuningResultsManager() {
     auto filename = GetFilename();
     if (!filename.empty() && !IsRecordUntunedEnabled()) {
       ReadFile(filename);
-      // attempt immediately to open file for writing to catch errors early
-      std::ofstream file(filename, std::ios::out | std::ios::app);
-      if (!file.good()) {
-        TORCH_WARN("failed to open file '", filename, "' for writing; your tuning results will not be saved");
-      }
     }
   });
   return manager_;
@@ -744,27 +847,6 @@ bool TuningContext::ReadFile(const std::string& filename_) {
   return true;
 }
 
-bool TuningContext::WriteFile(const std::string& filename_) {
-  std::string filename = filename_.empty() ? GetFilename() : filename_;
-  std::ofstream file(filename, std::ios::out | std::ios::trunc);
-  if (!file.good()) {
-    TUNABLE_LOG1("error opening tuning results file for writing ", filename);
-    return false;
-  }
-  auto validators = GetTuningResultsValidator().GetAllValidators();
-  for (const auto& [key, val] : validators) {
-    file << "Validator," << key << "," << val << std::endl;
-  }
-  auto results = GetTuningResultsManager().Dump();
-  for (const auto& [op_sig, kernelmap] : results) {
-    for (const auto& [param_sig, result] : kernelmap) {
-      file << op_sig << "," << param_sig << "," << result << std::endl;
-    }
-  }
-  file.close();
-  return true;
-}
-
 namespace {
 
 struct MaybeDelete {

aten/src/ATen/cuda/tunable/Tunable.h

@@ -103,10 +103,24 @@ class TORCH_CUDA_CPP_API TuningResultsManager {
 
     void RecordUntuned( std::ofstream& untuned_file, const std::string& op_signature,
       const std::string& params_signature, const std::string& blas_signature);
+
+    void InitRealtimeAppend(
+        const std::string& filename,
+        const std::unordered_map<std::string, std::string>& validators);
+
+    void AppendResultLine(const std::string& op_sig,
+                         const std::string& param_sig,
+                         const ResultEntry& result);
+
+    void CloseRealtimeAppend();  // For clean shutdown
   private:
     std::mutex lock_;
+    std::mutex realtime_file_mutex_;
+    std::unique_ptr<std::ofstream> realtime_out_;
+    std::string realtime_filename_;
     ResultsMap results_;
     UntunedMap untuned_results_;
+    bool validators_written_ = false;
 
 };
 
@@ -134,6 +148,16 @@ class TORCH_CUDA_CPP_API TuningResultsValidator {
     GetValidateFuncs validators_;
 };
 
+struct NumericalCheckConfig {
+  bool   enabled{false};
+  double atol{1e-5};
+  double rtol{1e-5};
+
+  NumericalCheckConfig() = default;
+  NumericalCheckConfig(bool e, double a, double r) : enabled(e), atol(a), rtol(r) {}
+};
+
+
 class TORCH_CUDA_CPP_API TuningContext {
   public:
     TuningContext();
@@ -155,6 +179,8 @@ class TORCH_CUDA_CPP_API TuningContext {
 
     void EnableNumericsCheck(bool value);
     bool IsNumericsCheckEnabled() const;
+    void SetNumericalCheckConfig(bool enabled, double atol, double rtol);
+    NumericalCheckConfig GetNumericalCheckConfig() const;
 
     void SetMaxTuningDurationMs(int max_duration_ms);
     int GetMaxTuningDurationMs() const;
@@ -185,10 +211,7 @@ class TORCH_CUDA_CPP_API TuningContext {
     void SetFilename(const std::string& filename, bool insert_device_ordinal=false);
     std::string GetFilename() const;
 
-    void WriteFileOnExit(bool value);
-
     bool ReadFile(const std::string& filename={});
-    bool WriteFile(const std::string& filename={});
 
     template<class... Types>
     void Log(int level, Types... args) {
@@ -207,7 +230,6 @@ class TORCH_CUDA_CPP_API TuningContext {
     bool tuning_enable_;
     bool record_untuned_enable_;
     bool manager_initialized_;
-    bool write_file_on_exit_;
     bool numerics_check_enable_;
     int max_tuning_duration_ms_;
     int max_tuning_iterations_;
@@ -222,6 +244,8 @@ class TORCH_CUDA_CPP_API TuningContext {
     std::ofstream untuned_file_;
     size_t results_count_from_input_file_;
     bool is_shutting_down_;
+
+    NumericalCheckConfig numerics_cfg_{};
 };
 
 TORCH_CUDA_CPP_API TuningContext* getTuningContext();

aten/src/ATen/cuda/tunable/TunableGemm.h

@@ -109,7 +109,8 @@ class DefaultScaledGemmOp : public Callable<ScaledGemmParams<T>> {
           params->c_scale_ptr,
           params->ldc,
           params->c_dtype,
-          params->use_fast_accum);
+          params->use_fast_accum,
+          std::nullopt /* alpha */);
       return OK;
     }
 };

aten/src/ATen/cuda/tunable/TunableOp.h

@@ -267,27 +267,10 @@ class TunableOp {
       for (size_t i = 0; i < op_names_.size(); i++) {
         auto* candidate = ops_[op_names_[i]].get(); // borrow pointer
 
-        if (do_numerics_check) {
+        auto status = candidate->Call(reusable_params[0]);
-          ParamsT* numerical_params = params->DeepCopy(false);
+        if (status != OK) {
-          auto status = candidate->Call(numerical_params);
+          TUNABLE_LOG3("├──unsupported id=", i, ", ", op_sig, '(', params_sig, ") ", op_names_[i]);
-          if (status != OK) {
+          continue;
-            numerical_params->Delete();
-            TUNABLE_LOG3("├──unsupported id=", i, ", ", op_sig, '(', params_sig, ") ", op_names_[i]);
-            continue;
-          }
-          status = reference_params->NumericalCheck(numerical_params);
-          numerical_params->Delete();
-          if (status != OK) {
-            TUNABLE_LOG3("├──numerics check failed for id=", i, ", ", op_sig, '(', params_sig, ") ", op_names_[i]);
-            continue;
-          }
-        }
-        else {
-          auto status = candidate->Call(reusable_params[0]);
-          if (status != OK) {
-            TUNABLE_LOG3("├──unsupported id=", i, ", ", op_sig, '(', params_sig, ") ", op_names_[i]);
-            continue;
-          }
         }
 
         // collect a small profile
@@ -310,6 +293,22 @@ class TunableOp {
           continue;
         }
 
+        if (do_numerics_check) {
+          ParamsT* numerical_params = params->DeepCopy(false);
+          auto status = candidate->Call(numerical_params);
+          if (status != OK) {
+            numerical_params->Delete();
+            TUNABLE_LOG3("├──unsupported id=", i, ", ", op_sig, '(', params_sig, ") ", op_names_[i]);
+            continue;
+          }
+          status = reference_params->NumericalCheck(numerical_params);
+          numerical_params->Delete();
+          if (status != OK) {
+            TUNABLE_LOG3("├──numerics check failed for id=", i, ", ", op_sig, '(', params_sig, ") ", op_names_[i]);
+            continue;
+          }
+        }
+
         // for warmup does user set max duration, max iters, or both?
         // warmup is skipped by default, i.e. warmup_iter = 0
         // warmup will be set to the non-zero value of max_warmup_duration

aten/src/ATen/functorch/BatchRulesModules.cpp

@@ -213,40 +213,22 @@ static cudnn_grid_sample_backward_batch_rule(
   return grid_sample_backward_helper_out(std::move(bw_out), 0, 0, bdim_size);
 }
 
-// TODO: replace with targetable functionalization
+// uses functional formulation for one_hot under vmap to be compatible with
+// fakeTensor/dynamic shapes and compiled functorch transforms.
+// mirrors the meta path in aten/src/ATen/native/Onehot.cpp,
+// but requires explicit positive num_classes under vmap to avoid
+// data-dependent output shapes.
 static Tensor one_hot_decomposition_hack(const Tensor &self, int64_t num_classes) {
     TORCH_CHECK(self.dtype() == kLong, "one_hot is only applicable to index tensor.");
-    auto shape = self.sym_sizes().vec();
-
-    // empty tensor could be converted to one hot representation,
-    // but shape inference is not possible.
-    if (self.sym_numel() == 0) {
-        if (num_classes <= 0) {
-            TORCH_CHECK(false, "Can not infer total number of classes from empty tensor.");
-        } else {
-            shape.emplace_back(num_classes);
-            return at::empty_symint(shape, self.options());
-        }
-    }
 
+    // disallow implicit inference under vmap; this would be data-dependent
+    // and is intentionally guarded by Dynamo in torch/_dynamo/variables/torch.py.
     TORCH_CHECK(num_classes > 0, "When vmap-ing torch.nn.functional.one_hot, please "
         "provide an explicit positive num_classes argument.");
 
-    // Disabling all of the following checks. This is OK because scatter has checks too.
+    const auto options = self.options();
-    // Maybe one_hot should be a primitive wrt autograd so we don't have to deal with this.
+    at::Tensor index = at::arange(num_classes, options);
-    // // non-empty tensor
+    return at::eq(self.unsqueeze(-1), index).to(at::kLong);
-    // if (self.device().type() != at::kCUDA) {
-    //   //for cuda, rely on device assert thrown by scatter
-    //   TORCH_CHECK(self.min().item().toLong() >= 0, "Class values must be non-negative.");
-    // }
-    // if (self.device().type() != at::kCUDA) {
-    //   //rely on device asserts from scatter to avoid sync here
-    //   TORCH_CHECK(num_classes > self.max().item().toLong(), "Class values must be smaller than num_classes.");
-    // }
-
-    shape.emplace_back(num_classes);
-    Tensor ret = at::zeros_symint(shape, self.options());
-    return ret.scatter(-1, self.unsqueeze(-1), 1);
 }
 
 template <typename A, A a, typename C>

aten/src/ATen/native/Activation.cpp

@@ -240,8 +240,8 @@ TORCH_META_FUNC(gelu_backward) (
 
 namespace at::native {
 
-static const double SELU_ALPHA = 1.6732632423543772848170429916717;
+static constexpr double SELU_ALPHA = 1.6732632423543772848170429916717;
-static const double SELU_SCALE = 1.0507009873554804934193349852946;
+static constexpr double SELU_SCALE = 1.0507009873554804934193349852946;
 
 DEFINE_DISPATCH(elu_stub);
 DEFINE_DISPATCH(elu_backward_stub);

aten/src/ATen/native/BlasKernel.cpp

@@ -286,7 +286,7 @@ template void scal_fast_path<scalar_t>(int *n, scalar_t *a, scalar_t *x, int *in
 #if AT_BUILD_WITH_BLAS()
 template <>
 bool scal_use_fast_path<double>(int64_t n, int64_t incx) {
-  auto intmax = std::numeric_limits<int>::max();
+  auto constexpr intmax = std::numeric_limits<int>::max();
   return n <= intmax && incx <= intmax;
 }
 
@@ -315,7 +315,7 @@ bool gemv_use_fast_path<float>(
     int64_t incx,
     [[maybe_unused]] float beta,
     int64_t incy) {
-  auto intmax = std::numeric_limits<int>::max();
+  auto constexpr intmax = std::numeric_limits<int>::max();
   return (m <= intmax) && (n <= intmax) && (lda <= intmax) &&
          (incx > 0) && (incx <= intmax) && (incy > 0) && (incy <= intmax);
 }

aten/src/ATen/native/Distributions.h

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <array>
 #include <ATen/native/Math.h>
 #include <c10/macros/Macros.h>
 #include <c10/util/MathConstants.h>
@@ -127,7 +128,7 @@ C10_DEVICE scalar_t sample_gamma(scalar_t alpha, BaseSampler<accscalar_t, unifor
 
 template<typename scalar_t>
 C10_DEVICE scalar_t stirling_approx_tail(scalar_t k) {
-  const static scalar_t kTailValues[] = {
+  constexpr static scalar_t kTailValues[] = {
     0.0810614667953272,
     0.0413406959554092,
     0.0276779256849983,
@@ -139,7 +140,7 @@ C10_DEVICE scalar_t stirling_approx_tail(scalar_t k) {
     0.00925546218271273,
     0.00833056343336287
   };
-  if (k <= 9) {
+  if (k < std::size(kTailValues)) {
     return kTailValues[static_cast<size_t>(k)];
   }
   scalar_t kp1sq = (k + 1) * (k + 1);

aten/src/ATen/native/Math.h

@@ -581,7 +581,7 @@ scalar_t ratevl(scalar_t x, const scalar_t num[], int64_t M,
 template <typename scalar_t>
 static scalar_t lanczos_sum_expg_scaled(scalar_t x) {
   // lanczos approximation
-  static const scalar_t lanczos_sum_expg_scaled_num[13] = {
+  static constexpr scalar_t lanczos_sum_expg_scaled_num[13] = {
     0.006061842346248906525783753964555936883222,
     0.5098416655656676188125178644804694509993,
     19.51992788247617482847860966235652136208,
@@ -596,7 +596,7 @@ static scalar_t lanczos_sum_expg_scaled(scalar_t x) {
     103794043.1163445451906271053616070238554,
     56906521.91347156388090791033559122686859
   };
-  static const scalar_t lanczos_sum_expg_scaled_denom[13] = {
+  static constexpr scalar_t lanczos_sum_expg_scaled_denom[13] = {
     1.,
     66.,
     1925.,
@@ -712,7 +712,7 @@ static scalar_t _igamc_helper_series(scalar_t a, scalar_t x) {
 template <typename scalar_t>
 static scalar_t _igam_helper_asymptotic_series(scalar_t a, scalar_t x, bool igam) {
   // Compute igam/igamc using DLMF 8.12.3/8.12.4 [igam1]
-  static const scalar_t d[25][25] =
+  static constexpr scalar_t d[25][25] =
     {{-3.3333333333333333e-1, 8.3333333333333333e-2, -1.4814814814814815e-2,
       1.1574074074074074e-3, 3.527336860670194e-4, -1.7875514403292181e-4,
       3.9192631785224378e-5, -2.1854485106799922e-6, -1.85406221071516e-6,

aten/src/ATen/native/Normalization.cpp

@@ -62,7 +62,7 @@
 #include <utility>
 #include <vector>
 
-static const int MIOPEN_DIM_MAX = 5;
+static constexpr int MIOPEN_DIM_MAX = 5;
 
 namespace at::meta {
 

aten/src/ATen/native/Onehot.cpp

@@ -34,16 +34,16 @@ Tensor one_hot(const Tensor &self, int64_t num_classes) {
         }
     }
 
-    auto shape = self.sizes().vec();
+    auto shape = self.sym_sizes().vec();
 
     // empty tensor could be converted to one hot representation,
     // but shape inference is not possible.
-    if (self.numel() == 0) {
+    if (self.sym_numel() == 0) {
         if (num_classes <= 0) {
             TORCH_CHECK(false, "Can not infer total number of classes from empty tensor.");
         } else {
-            shape.push_back(num_classes);
+            shape.emplace_back(num_classes);
-            return at::empty(shape, self.options());
+            return at::empty_symint(shape, self.options());
         }
     }
 
@@ -66,8 +66,8 @@ Tensor one_hot(const Tensor &self, int64_t num_classes) {
         }
     }
 
-    shape.push_back(num_classes);
+    shape.emplace_back(num_classes);
-    Tensor ret = at::zeros(shape, self.options());
+    Tensor ret = at::zeros_symint(shape, self.options());
     ret.scatter_(-1, self.unsqueeze(-1), 1);
     return ret;
 }

aten/src/ATen/native/TensorAdvancedIndexing.cpp

@@ -1906,11 +1906,9 @@ Tensor& index_fill_(
         "This also applies to advanced indexing e.g. tensor[mask] = scalar");
   }
 
-  if (!self.is_complex() && source.isComplex()) {
+  TORCH_CHECK(
-    TORCH_CHECK(
+      self.is_complex() || !source.isComplex(),
-        false,
+      "index_fill_(): Converting complex Scalar to non-complex type is not supported");
-        "index_fill_(): Converting complex Scalar to non-complex type is not supported");
-  }
 
   // Handle the case when `self` is 0-dim
   Tensor self_nonzero_dim = (self.dim() == 0) ? self.unsqueeze(-1) : self;

aten/src/ATen/native/TensorAdvancedIndexingUtils.h

@@ -77,7 +77,7 @@ inline AdvancedIndex make_info(Tensor self, IOptTensorListRef orig) {
   // next broadcast all index tensors together
   try {
     indices = expand_outplace(indices);
-  } catch (std::exception& e) {
+  } catch (std::exception&) {
     TORCH_CHECK_INDEX(
         false,
         "shape mismatch: indexing tensors could not be broadcast together"

aten/src/ATen/native/cpu/PowKernel.cpp

@@ -120,7 +120,7 @@ static void pow_tensor_scalar_kernel(
   } else if (dtype == ScalarType::Half) {
     [&]() {
       using scalar_t =
-          decltype(c10::impl::ScalarTypeToCPPType<ScalarType::Half>::t);
+          c10::impl::ScalarTypeToCPPTypeT<ScalarType::Half>;
       const auto exp = exp_scalar.to<scalar_t>();
       using Vec = Vectorized<scalar_t>;
       cpu_kernel_vec(iter,

aten/src/ATen/native/cpu/UpSampleKernel.cpp

@@ -1038,7 +1038,7 @@ struct HelperInterpNearest : public HelperInterpBase {
   // We keep this structure for BC and consider as deprecated.
   // See HelperInterpNearestExact as replacement
 
-  static const int interp_size = 1;
+  static constexpr int interp_size = 1;
 
   static inline void init_indices_weights(
     at::ScalarType output_type,
@@ -1155,7 +1155,7 @@ struct HelperInterpNearestExact : public HelperInterpNearest {
 
 struct HelperInterpLinear : public HelperInterpBase {
 
-  static const int interp_size = 2;
+  static constexpr int interp_size = 2;
 
   // Compute indices and weights for each interpolated dimension
   // indices_weights = {
@@ -1275,7 +1275,7 @@ struct HelperInterpLinear : public HelperInterpBase {
 
 struct HelperInterpCubic : public HelperInterpBase {
 
-  static const int interp_size = 4;
+  static constexpr int interp_size = 4;
 
   // Compute indices and weights for each interpolated dimension
   // indices_weights = {

aten/src/ATen/native/cuda/CUDALoops.cuh

@@ -856,9 +856,13 @@ struct type_specialized_kernel_launcher {
       out_calc_t output_offset_calculator,
       loader_t loader,
       storer_t storer) {
-    if (ret_t == rt_binary_specializations[arg_index][0] &&
+    constexpr ScalarType sret_t = rt_binary_specializations[arg_index][0];
-        arg0_t == rt_binary_specializations[arg_index][1] &&
+    constexpr ScalarType sarg0_t = rt_binary_specializations[arg_index][1];
-        arg1_t == rt_binary_specializations[arg_index][2])
+    constexpr ScalarType sarg1_t = rt_binary_specializations[arg_index][2];
+    if (ret_t == sret_t && arg0_t == sarg0_t && arg1_t == sarg1_t) {
+      using cret_t = c10::impl::ScalarTypeToCPPTypeT<sret_t>;
+      using carg0_t = c10::impl::ScalarTypeToCPPTypeT<sarg0_t>;
+      using carg1_t = c10::impl::ScalarTypeToCPPTypeT<sarg1_t>;
       launch_vectorized_templated_kernel<
           func_t,
           array_t,
@@ -866,12 +870,9 @@ struct type_specialized_kernel_launcher {
           out_calc_t,
           loader_t,
           storer_t,
-          decltype(c10::impl::ScalarTypeToCPPType<
+          cret_t,
-                   rt_binary_specializations[arg_index][0]>::t),
+          carg0_t,
-          decltype(c10::impl::ScalarTypeToCPPType<
+          carg1_t>(
-                   rt_binary_specializations[arg_index][1]>::t),
-          decltype(c10::impl::ScalarTypeToCPPType<
-                   rt_binary_specializations[arg_index][2]>::t)>(
           numel,
           f,
           data,
@@ -879,6 +880,7 @@ struct type_specialized_kernel_launcher {
           output_offset_calculator,
           loader,
           storer);
+    }
   }
 };
 

aten/src/ATen/native/cuda/DilatedMaxPool2d.cu

@@ -38,12 +38,41 @@ __device__ inline int min(int a, int b) {
 #define BLOCK_STRIDE_BWD 2 // increasing block_stride to lower # of blocks launched
 #endif
 
-static __device__ inline int p_start(int size, int pad, int kernel, int dilation, int stride) {
+template <typename index_t>
-  return (size + pad < ((kernel - 1) * dilation + 1)) ? 0 : (size + pad - ((kernel - 1) * dilation + 1)) / stride + 1;
+static __device__ inline index_t p_start(index_t size, int pad, int kernel, int dilation, int stride) {
+  const auto kernel_extent = static_cast<index_t>((kernel - 1) * dilation + 1);
+  return (size + pad < kernel_extent) ? index_t(0) : (size + pad - kernel_extent) / stride + 1;
 }
 
-static __device__ inline int p_end(int size, int pad, int pooled_size, int stride) {
+template <typename index_t>
-  return min((size + pad) / stride + 1, pooled_size);
+static __device__ inline index_t p_end(index_t size, int pad, index_t pooled_size, int stride) {
+  return std::min((size + pad) / stride + 1, pooled_size);
+}
+
+static inline bool can_use_int32_nhwc(
+    int64_t nbatch, int64_t channels,
+    int64_t height, int64_t width,
+    int64_t pooled_height, int64_t pooled_width,
+    int64_t in_stride_n, int64_t in_stride_c,
+    int64_t in_stride_h, int64_t in_stride_w)
+{
+  constexpr int64_t int_max = std::numeric_limits<int>::max();
+
+  int64_t max_intra_batch =
+      (height ? (height - 1) * in_stride_h : 0) +
+      (width ? (width - 1) * in_stride_w : 0) +
+      (channels? (channels - 1) * in_stride_c : 0);
+
+  int64_t max_input_offset = (nbatch ? (nbatch - 1) * in_stride_n : 0) + max_intra_batch;
+
+  if (max_input_offset > int_max) return false;
+
+  int64_t out_batch_stride = pooled_height * pooled_width * channels;
+  if ((nbatch ? (nbatch - 1) * out_batch_stride : 0) > int_max) return false;
+
+  if (height * width > int_max) return false;
+
+  return true;
 }
 
 // kernels borrowed from Caffe
@@ -85,21 +114,25 @@ __global__ void max_pool_forward_nchw(const int nthreads, const scalar_t* bottom
   }
 }
 
-template <typename scalar_t>
+template <typename scalar_t, typename index_t>
 C10_LAUNCH_BOUNDS_1(CUDA_MAX_THREADS)
-__global__ void max_pool_forward_nhwc(const scalar_t* bottom_data, const int nbatch,
+__global__ void max_pool_forward_nhwc(
-                                   const int64_t channels, const int64_t height,
+    const scalar_t* bottom_data,
-                                   const int64_t width, const int pooled_height, const int pooled_width,
+    const int nbatch,
-                                   const int kernel_h, const int kernel_w, const int stride_h,
+    const index_t channels, const index_t height, const index_t width,
-                                   const int stride_w, const int pad_h, const int pad_w,
+    const index_t pooled_height, const index_t pooled_width,
-                                   const int dilation_h, const int dilation_w,
+    const int kernel_h, const int kernel_w, const int stride_h,
-                                   const int in_stride_n, const int in_stride_c,
+    const int stride_w, const int pad_h, const int pad_w,
-                                   const int in_stride_h, const int in_stride_w,
+    const int dilation_h, const int dilation_w,
-                                   const int kernel_stride_C, const int kernel_size_C,
+    const index_t in_stride_n, const index_t in_stride_c,
-                                   scalar_t* top_data, int64_t* top_mask) {
+    const index_t in_stride_h, const index_t in_stride_w,
-  extern __shared__ int smem[];
+    const int kernel_stride_C, const int kernel_size_C,
-  int *out_mask_cached = smem;
+    scalar_t* top_data, int64_t* top_mask) {
-  scalar_t *out_cached = reinterpret_cast<scalar_t*>(&out_mask_cached[kernel_size_C*blockDim.x*blockDim.y*blockDim.z]);
+
+  extern __shared__ unsigned char smem_raw[];
+  index_t *out_mask_cached = reinterpret_cast<index_t*>(smem_raw);
+  scalar_t *out_cached = reinterpret_cast<scalar_t*>(
+      out_mask_cached + kernel_size_C*blockDim.x*blockDim.y*blockDim.z);
 
   // flattening cta for pre-computation & smem initialization;
   int thread_id = threadIdx.x + blockDim.x * (threadIdx.y + blockDim.y * threadIdx.z);
@@ -118,26 +151,26 @@ __global__ void max_pool_forward_nhwc(const scalar_t* bottom_data, const int nba
   int channel_id = blockIdx.x / nbatch;
   int channel_offset = threadIdx.x + channel_id * blockDim.x;
 
-  top_data = top_data + batch_id * pooled_height * pooled_width * channels;
+  top_data = top_data + static_cast<index_t>(batch_id) * (pooled_height * pooled_width * channels);
-  top_mask = top_mask + batch_id * pooled_height * pooled_width * channels;
+  top_mask = top_mask + static_cast<index_t>(batch_id) * (pooled_height * pooled_width * channels);
-  bottom_data = bottom_data + batch_id * in_stride_n;
+  bottom_data = bottom_data + static_cast<index_t>(batch_id) * in_stride_n;
 
-  out_cached = &out_cached[(threadIdx.z * blockDim.y + threadIdx.y) * kernel_size_C*blockDim.x];
+  out_cached += (threadIdx.z * blockDim.y + threadIdx.y) * kernel_size_C*blockDim.x;
-  out_mask_cached = &out_mask_cached[(threadIdx.z * blockDim.y + threadIdx.y) * kernel_size_C*blockDim.x];
+  out_mask_cached  += (threadIdx.z * blockDim.y + threadIdx.y) * kernel_size_C*blockDim.x;
 
-  int oH = (pooled_height + gridDim.z-1) / gridDim.z;
+  int oH = (static_cast<int>(pooled_height) + gridDim.z - 1) / gridDim.z;
-  int oW = (pooled_width + gridDim.y-1) / gridDim.y;
+  int oW = (static_cast<int>(pooled_width)  + gridDim.y - 1) / gridDim.y;
   int ostartH = threadIdx.z + blockIdx.z*oH;
-  int oendH = ::min(ostartH+oH, pooled_height);
+  int oendH = ::min(ostartH+oH, static_cast<int>(pooled_height));
   int ostartW = threadIdx.y + blockIdx.y*oW;
-  int oendW = ::min(ostartW+oW, pooled_width);
+  int oendW = ::min(ostartW+oW, static_cast<int>(pooled_width));
 
   for (int oh = ostartH; oh < oendH; oh+=blockDim.z) {
-    int hstart = oh * stride_h - pad_h;
+    index_t hstart = static_cast<index_t>(oh) * stride_h - pad_h;
-    int hend = min(hstart + (kernel_h - 1) * dilation_h + 1, height);
+    index_t hend = std::min(hstart + static_cast<index_t>((kernel_h - 1) * dilation_h + 1), height);
     for (int ow = ostartW; ow < oendW; ow+=blockDim.y) {
-      int wstart = ow * stride_w - pad_w;
+      index_t wstart = static_cast<index_t>(ow) * stride_w - pad_w;
-      int wend = min(wstart + (kernel_w - 1) * dilation_w + 1, width);
+      index_t wend = std::min(wstart + static_cast<index_t>((kernel_w - 1) * dilation_w + 1), width);
       while(hstart < 0)
         hstart += dilation_h;
       while(wstart < 0)
@@ -185,12 +218,12 @@ __global__ void max_pool_forward_nhwc(const scalar_t* bottom_data, const int nba
       // Else do it Non-Prefetch...
       else
 #endif
-      for (int ih = hstart; ih < hend; ih += dilation_h) {
+      for (index_t ih = hstart; ih < hend; ih += dilation_h) {
-        for (int iw = wstart; iw < wend; iw += dilation_w) {
+        for (index_t iw = wstart; iw < wend; iw += dilation_w) {
           int cached_index = threadIdx.x;
           const scalar_t *ptr_input = bottom_data + ih * in_stride_h + iw * in_stride_w;
-          for(int c = channel_offset; c < channels; c+= blockDim.x*kernel_stride_C) {
+          for (index_t c = channel_offset; c < channels; c += static_cast<index_t>(blockDim.x) * kernel_stride_C) {
-            scalar_t val = ptr_input[c*in_stride_c];
+            scalar_t val = ptr_input[c * in_stride_c];
             if ((val > out_cached[cached_index]) || at::_isnan(val)) {
               out_cached[cached_index] = val;
               out_mask_cached[cached_index] = ih * width + iw;
@@ -200,15 +233,15 @@ __global__ void max_pool_forward_nhwc(const scalar_t* bottom_data, const int nba
         }
       }
 
-      scalar_t *ptr_output_data = top_data + (oh * pooled_width + ow) * channels;
+      scalar_t *ptr_output_data = top_data + (static_cast<index_t>(oh) * pooled_width + ow) * channels;
-      int64_t *ptr_output_mask = top_mask + (oh * pooled_width + ow) * channels;
+      int64_t *ptr_output_mask = top_mask + (static_cast<index_t>(oh) * pooled_width + ow) * channels;
 
       int cached_index = threadIdx.x;
-      for(int c = channel_offset; c < channels; c+= blockDim.x*kernel_stride_C) {
+      for (index_t c = channel_offset; c < channels; c += static_cast<index_t>(blockDim.x) * kernel_stride_C) {
         ptr_output_data[c] = out_cached[cached_index];
-        ptr_output_mask[c] = out_mask_cached[cached_index];
+        ptr_output_mask[c] = static_cast<int64_t>(out_mask_cached[cached_index]);
         out_cached[cached_index] = at::numeric_limits<scalar_t>::lower_bound();
-        out_mask_cached[cached_index] = 0;
+        out_mask_cached[cached_index] = index_t(0);
         cached_index += blockDim.x;
       }
     }
@@ -216,7 +249,7 @@ __global__ void max_pool_forward_nhwc(const scalar_t* bottom_data, const int nba
 }
 
 
-static const int BLOCK_THREADS = 256;
+static constexpr int BLOCK_THREADS = 256;
 
 template <typename scalar_t, typename accscalar_t>
 #if defined (USE_ROCM)
@@ -462,6 +495,11 @@ const Tensor& indices) {
               maxThreadsDim[0], std::min<int>(lastPow2(nInputPlane), max_threads / block_y / block_z));
           const dim3 block(block_x, block_y, block_z);
 
+          bool use_int32 = can_use_int32_nhwc(
+              nbatch, nInputPlane, inputHeight, inputWidth,
+              outputHeight, outputWidth,
+              in_stride_n, in_stride_c, in_stride_h, in_stride_w);
+
           int kernel_stride_C = ceil_div(
               safe_downcast<int, int64_t>(nInputPlane), block_x * 4);
           int kernel_size_C = ceil_div(
@@ -476,18 +514,41 @@ const Tensor& indices) {
               ceil_div(safe_downcast<int, int64_t>(outputHeight), block_z*BLOCK_STRIDE_FWD));
           const dim3 grid(grid_x, grid_y, grid_z);
 
-          size_t shmem_size = (kernel_size_C * block_x*block_y*block_z) * (sizeof(int) + sizeof(scalar_t));
+          size_t shmem_size;
-          AT_ASSERT(shmem_size <= at::cuda::getCurrentDeviceProperties()->sharedMemPerBlock);
+          size_t mask_elems = static_cast<size_t>(kernel_size_C) * block_x * block_y * block_z;
 
-          max_pool_forward_nhwc<scalar_t>
+          if (use_int32) {
-          <<<grid, block, shmem_size, at::cuda::getCurrentCUDAStream()>>>(
+            shmem_size = mask_elems * (sizeof(int32_t) + sizeof(scalar_t));
-              input_data, nbatch,
+            TORCH_CHECK(shmem_size <= at::cuda::getCurrentDeviceProperties()->sharedMemPerBlock,
-                  nInputPlane, inputHeight, inputWidth, outputHeight, outputWidth,
+                        "shared memory too small");
-                  kH, kW, dH, dW, padH, padW, dilationH, dilationW,
+            max_pool_forward_nhwc<scalar_t, int32_t>
-                  in_stride_n, in_stride_c,
+              <<<grid, block, shmem_size, at::cuda::getCurrentCUDAStream()>>>(
-                  in_stride_h, in_stride_w,
+                input_data, static_cast<int>(nbatch),
-                  kernel_stride_C, kernel_size_C,
+                static_cast<int32_t>(nInputPlane),
-                  output_data, indices_data);
+                static_cast<int32_t>(inputHeight),
+                static_cast<int32_t>(inputWidth),
+                static_cast<int32_t>(outputHeight),
+                static_cast<int32_t>(outputWidth),
+                kH, kW, dH, dW, padH, padW, dilationH, dilationW,
+                static_cast<int32_t>(in_stride_n),
+                static_cast<int32_t>(in_stride_c),
+                static_cast<int32_t>(in_stride_h),
+                static_cast<int32_t>(in_stride_w),
+                kernel_stride_C, kernel_size_C,
+                output_data, indices_data);
+          } else {
+            shmem_size = mask_elems * (sizeof(int64_t) + sizeof(scalar_t));
+            TORCH_CHECK(shmem_size <= at::cuda::getCurrentDeviceProperties()->sharedMemPerBlock,
+                        "shared memory too small");
+            max_pool_forward_nhwc<scalar_t, int64_t>
+              <<<grid, block, shmem_size, at::cuda::getCurrentCUDAStream()>>>(
+                input_data, static_cast<int>(nbatch),
+                nInputPlane, inputHeight, inputWidth, outputHeight, outputWidth,
+                kH, kW, dH, dW, padH, padW, dilationH, dilationW,
+                in_stride_n, in_stride_c, in_stride_h, in_stride_w,
+                kernel_stride_C, kernel_size_C,
+                output_data, indices_data);
+          }
           C10_CUDA_KERNEL_LAUNCH_CHECK();
           break;
         }

aten/src/ATen/native/cuda/Embedding.cu

@@ -36,9 +36,9 @@ namespace at::native {
 namespace {
 
 #if defined(USE_ROCM)
-static const int BLOCKDIMY = 16;
+static constexpr int BLOCKDIMY = 16;
 #else
-static const int BLOCKDIMY = 32;
+static constexpr int BLOCKDIMY = 32;
 #endif
 
 template

aten/src/ATen/native/cuda/IGammaKernel.cu

@@ -82,7 +82,7 @@ __host__ __device__ scalar_t lanczos_sum_expg_scaled(scalar_t x) {
   // lanczos approximation
   using accscalar_t = at::acc_type<scalar_t, /*is_cuda=*/true>;
 
-  static const accscalar_t lanczos_sum_expg_scaled_num[13] = {
+  constexpr accscalar_t lanczos_sum_expg_scaled_num[13] = {
     0.006061842346248906525783753964555936883222,
     0.5098416655656676188125178644804694509993,
     19.51992788247617482847860966235652136208,
@@ -97,7 +97,7 @@ __host__ __device__ scalar_t lanczos_sum_expg_scaled(scalar_t x) {
     103794043.1163445451906271053616070238554,
     56906521.91347156388090791033559122686859
   };
-  static const accscalar_t lanczos_sum_expg_scaled_denom[13] = {
+  constexpr accscalar_t lanczos_sum_expg_scaled_denom[13] = {
     1.,
     66.,
     1925.,
@@ -126,10 +126,10 @@ __host__ __device__ scalar_t _igam_helper_fac(scalar_t a, scalar_t x) {
 
   using accscalar_t = at::acc_type<scalar_t, /*is_cuda=*/true>;
   accscalar_t ax, fac, res, num, numfac;
-  static const accscalar_t MAXLOG = std::is_same_v<accscalar_t,double> ?
+  constexpr accscalar_t MAXLOG = std::is_same_v<accscalar_t,double> ?
     7.09782712893383996843E2 : 88.72283905206835;
-  static const accscalar_t EXP1 = 2.718281828459045;
+  constexpr accscalar_t EXP1 = 2.718281828459045;
-  static const accscalar_t lanczos_g = 6.024680040776729583740234375;
+  constexpr accscalar_t lanczos_g = 6.024680040776729583740234375;
 
   if (::fabs(a - x) > 0.4 * ::fabs(a)) {
     ax = a * ::log(x) - x - ::lgamma(a);
@@ -158,9 +158,9 @@ __host__ __device__ scalar_t _igam_helper_series(scalar_t a, scalar_t x) {
   // Compute igam using DLMF 8.11.4. [igam1]
 
   using accscalar_t = at::acc_type<scalar_t, /*is_cuda=*/true>;
-  static const accscalar_t MACHEP = std::is_same_v<accscalar_t, double> ?
+  constexpr accscalar_t MACHEP = std::is_same_v<accscalar_t, double> ?
     1.11022302462515654042E-16 : 5.9604644775390625E-8;
-  static const int MAXITER = 2000;
+  constexpr int MAXITER = 2000;
 
   int i;
   accscalar_t ans, ax, c, r;
@@ -196,8 +196,8 @@ __host__ __device__ scalar_t _igamc_helper_series(scalar_t a, scalar_t x) {
   accscalar_t fac = 1;
   accscalar_t sum = 0;
   accscalar_t term, logx;
-  static const int MAXITER = 2000;
+  constexpr int MAXITER = 2000;
-  static const accscalar_t MACHEP = std::is_same_v<accscalar_t, double> ?
+  constexpr accscalar_t MACHEP = std::is_same_v<accscalar_t, double> ?
     1.11022302462515654042E-16 : 5.9604644775390625E-8;
 
   for (n = 1; n < MAXITER; n++) {
@@ -219,7 +219,7 @@ __host__ __device__ scalar_t _igam_helper_asymptotic_series(scalar_t a, scalar_t
   // Compute igam/igamc using DLMF 8.12.3/8.12.4 [igam1]
 
   using accscalar_t = at::acc_type<scalar_t, /*is_cuda=*/true>;
-  static const accscalar_t d[25][25] =
+  constexpr accscalar_t d[25][25] =
     {{-3.3333333333333333e-1, 8.3333333333333333e-2, -1.4814814814814815e-2, 1.1574074074074074e-3, 3.527336860670194e-4, -1.7875514403292181e-4, 3.9192631785224378e-5, -2.1854485106799922e-6, -1.85406221071516e-6, 8.296711340953086e-7, -1.7665952736826079e-7, 6.7078535434014986e-9, 1.0261809784240308e-8, -4.3820360184533532e-9, 9.1476995822367902e-10, -2.551419399494625e-11, -5.8307721325504251e-11, 2.4361948020667416e-11, -5.0276692801141756e-12, 1.1004392031956135e-13, 3.3717632624009854e-13, -1.3923887224181621e-13, 2.8534893807047443e-14, -5.1391118342425726e-16, -1.9752288294349443e-15},
     {-1.8518518518518519e-3, -3.4722222222222222e-3, 2.6455026455026455e-3, -9.9022633744855967e-4, 2.0576131687242798e-4, -4.0187757201646091e-7, -1.8098550334489978e-5, 7.6491609160811101e-6, -1.6120900894563446e-6, 4.6471278028074343e-9, 1.378633446915721e-7, -5.752545603517705e-8, 1.1951628599778147e-8, -1.7543241719747648e-11, -1.0091543710600413e-9, 4.1627929918425826e-10, -8.5639070264929806e-11, 6.0672151016047586e-14, 7.1624989648114854e-12, -2.9331866437714371e-12, 5.9966963656836887e-13, -2.1671786527323314e-16, -4.9783399723692616e-14, 2.0291628823713425e-14, -4.13125571381061e-15},
     {4.1335978835978836e-3, -2.6813271604938272e-3, 7.7160493827160494e-4, 2.0093878600823045e-6, -1.0736653226365161e-4, 5.2923448829120125e-5, -1.2760635188618728e-5, 3.4235787340961381e-8, 1.3721957309062933e-6, -6.298992138380055e-7, 1.4280614206064242e-7, -2.0477098421990866e-10, -1.4092529910867521e-8, 6.228974084922022e-9, -1.3670488396617113e-9, 9.4283561590146782e-13, 1.2872252400089318e-10, -5.5645956134363321e-11, 1.1975935546366981e-11, -4.1689782251838635e-15, -1.0940640427884594e-12, 4.6622399463901357e-13, -9.905105763906906e-14, 1.8931876768373515e-17, 8.8592218725911273e-15},
@@ -248,7 +248,7 @@ __host__ __device__ scalar_t _igam_helper_asymptotic_series(scalar_t a, scalar_t
 
   int k, n, sgn;
   int maxpow = 0;
-  static const accscalar_t MACHEP = std::is_same_v<accscalar_t, double> ?
+  constexpr accscalar_t MACHEP = std::is_same_v<accscalar_t, double> ?
     1.11022302462515654042E-16 : 5.9604644775390625E-8;
   accscalar_t lambda = x / a;
   accscalar_t sigma = (x - a) / a;
@@ -314,12 +314,12 @@ __host__ __device__ scalar_t _igamc_helper_continued_fraction(scalar_t a, scalar
   int i;
   accscalar_t ans, ax, c, yc, r, t, y, z;
   accscalar_t pk, pkm1, pkm2, qk, qkm1, qkm2;
-  static const int MAXITER = 2000;
+  constexpr int MAXITER = 2000;
-  static const accscalar_t MACHEP = std::is_same_v<accscalar_t, double> ?
+  constexpr accscalar_t MACHEP = std::is_same_v<accscalar_t, double> ?
     1.11022302462515654042E-16 : 5.9604644775390625E-8;
-  static const accscalar_t BIG = std::is_same_v<accscalar_t,double> ?
+  constexpr accscalar_t BIG = std::is_same_v<accscalar_t,double> ?
     4.503599627370496e15 : 16777216.;
-  static const accscalar_t BIGINV = std::is_same_v<accscalar_t,double> ?
+  constexpr accscalar_t BIGINV = std::is_same_v<accscalar_t,double> ?
     2.22044604925031308085e-16 : 5.9604644775390625E-8;
 
   ax = _igam_helper_fac(a, x);
@@ -385,10 +385,10 @@ __noinline__ __host__ __device__ scalar_t calc_igammac(scalar_t a, scalar_t x) {
   using accscalar_t = at::acc_type<scalar_t, /*is_cuda=*/true>;
   accscalar_t absxma_a;
 
-  static const accscalar_t SMALL = 20.0;
+  constexpr accscalar_t SMALL = 20.0;
-  static const accscalar_t LARGE = 200.0;
+  constexpr accscalar_t LARGE = 200.0;
-  static const accscalar_t SMALLRATIO = 0.3;
+  constexpr accscalar_t SMALLRATIO = 0.3;
-  static const accscalar_t LARGERATIO = 4.5;
+  constexpr accscalar_t LARGERATIO = 4.5;
 
   if ((x < 0) || (a < 0)) {
     // out of defined-region of the function
@@ -467,10 +467,10 @@ __noinline__ __host__ __device__ scalar_t calc_igamma(scalar_t a, scalar_t x) {
 
   using accscalar_t = at::acc_type<scalar_t, /*is_cuda=*/true>;
   accscalar_t absxma_a;
-  static const accscalar_t SMALL = 20.0;
+  constexpr accscalar_t SMALL = 20.0;
-  static const accscalar_t LARGE = 200.0;
+  constexpr accscalar_t LARGE = 200.0;
-  static const accscalar_t SMALLRATIO = 0.3;
+  constexpr accscalar_t SMALLRATIO = 0.3;
-  static const accscalar_t LARGERATIO = 4.5;
+  constexpr accscalar_t LARGERATIO = 4.5;
 
   // boundary values following SciPy
   if ((x < 0) || (a < 0)) {

aten/src/ATen/native/cuda/Math.cuh

@@ -231,7 +231,7 @@ const auto lcm_string = jiterator_stringify(
 const auto digamma_string = jiterator_stringify(
   template <typename T>
   T digamma(T x) {
-    static const double PI_f64 = 3.14159265358979323846;
+    static constexpr double PI_f64 = 3.14159265358979323846;
 
     // Short-circuits if x is +/- 0 and returns -/+ ∞ per the C++ standard
     if (x == 0) {
@@ -3072,9 +3072,9 @@ template <typename scalar_t>
 static inline C10_HOST_DEVICE scalar_t calc_digamma(scalar_t in) {
   // [C++ Standard Reference: Gamma Function] https://en.cppreference.com/w/cpp/numeric/math/tgamma
   using accscalar_t = at::acc_type<scalar_t, /*is_cuda=*/true>;
-  static const double PI_f64 = 3.14159265358979323846;
+  static constexpr double PI_f64 = 3.14159265358979323846;
-  const accscalar_t PSI_10 = 2.25175258906672110764;
+  constexpr accscalar_t PSI_10 = 2.25175258906672110764;
-  const accscalar_t A[] = {
+  constexpr accscalar_t A[] = {
       8.33333333333333333333E-2,
       -2.10927960927960927961E-2,
       7.57575757575757575758E-3,

aten/src/ATen/native/cuda/Reduce.cuh

@@ -655,8 +655,14 @@ struct ReduceOp {
     }
 
     __syncthreads();
-
+    // Intra-warp reduction, fix CUDA to have offset decreasing for better numerics
+    // matching Triton, etc.
+    // todo for AMD
+    #ifdef USE_ROCM
     for (int offset = 1; offset < dim_x; offset <<= 1) {
+    #else
+    for (int offset = dim_x >> 1; offset > 0; offset >>= 1) {
+    #endif
       #pragma unroll
       for (int i = 0; i < output_vec_size; i++) {
         arg_t other = ops.warp_shfl_down(value[i], offset);
@@ -1091,11 +1097,7 @@ ReduceConfig setReduceConfig(const TensorIterator& iter){
   // threads with different threadIdx.x are independent and will produce results for different outputs.
   // In such case, values in each loaded vector always correspond to different outputs.
   if (fastest_moving_stride == sizeof(scalar_t)) {
-#ifdef USE_ROCM
     if (reduction_on_fastest_striding_dimension && dim0 >= 128 && iter.num_reduce_dims() == 1) {
-#else
-    if (reduction_on_fastest_striding_dimension && dim0 > 128 && iter.num_reduce_dims() == 1 && vt0 >= input_vec_size) {
-#endif
       // Case 1: "vectorize along input"
       // Note that if vt0 < ReduceConfig::vec_size, then this means the register pressure could be high, in such case,
       // we should avoid vectorization.

aten/src/ATen/native/cuda/ReduceMomentKernel.cu

@@ -39,9 +39,14 @@ static void std_var_kernel_cuda(TensorIterator& iter, double correction, bool ta
 template <typename scalar_t, typename acc_t=scalar_t, typename out_t=scalar_t>
 void mean_kernel_impl(TensorIterator& iter) {
   //  returns acc_t for all non-complex dtypes and returns T for c10::complex<T>
+  constexpr bool is_16_bits = sizeof(scalar_t) == 2;
   using factor_t = typename c10::scalar_value_type<acc_t>::type;
   factor_t factor = static_cast<factor_t>(iter.num_output_elements()) / iter.numel();
-  gpu_reduce_kernel<scalar_t, out_t>(iter, MeanOps<scalar_t, acc_t, factor_t, out_t> {factor});
+  if constexpr (is_16_bits) {
+    gpu_reduce_kernel<scalar_t, out_t, /*vt0=*/4, /*input_vec_size=*/8>(iter, MeanOps<scalar_t, acc_t, factor_t, out_t> {factor});
+  } else {
+    gpu_reduce_kernel<scalar_t, out_t>(iter, MeanOps<scalar_t, acc_t, factor_t, out_t> {factor});
+  }
 }
 
 static void mean_kernel_cuda(TensorIterator& iter) {

aten/src/ATen/native/cuda/ReduceSumProdKernel.cu

@@ -13,24 +13,19 @@ namespace at::native {
 template <typename scalar_t, typename acc_t = scalar_t, typename out_t = scalar_t>
 struct sum_functor {
   void operator()(TensorIterator& iter) {
-#ifdef USE_ROCM
+    const auto sum_combine = [] GPU_LAMBDA(acc_t a, acc_t b) -> acc_t {
-    // Half and BFloat16 can be packed in groups of up to 8 elements and
+      return a + b;
-    // can use *_DWORDX4 instructions to achieve that.
+    };
-    const bool is_16_bits =
+    constexpr bool is_16_bits = sizeof(scalar_t) == 2;
-      ( (std::is_same<at::Half, scalar_t>::value) ||
+    if constexpr (is_16_bits) {
-        (std::is_same<at::BFloat16, scalar_t>::value) );
-    if (is_16_bits) {
       gpu_reduce_kernel<scalar_t, out_t, /*vt0=*/4, /*input_vec_size=*/8>(
-        iter, func_wrapper<out_t>([] GPU_LAMBDA(acc_t a, acc_t b) -> acc_t {
+        iter, func_wrapper<out_t>(sum_combine)
-          return a + b;
+      );
-        }));
+    } else {
-      return;
+      gpu_reduce_kernel<scalar_t, out_t>(
+        iter, func_wrapper<out_t>(sum_combine)
+      );
     }
-#endif
-    gpu_reduce_kernel<scalar_t, out_t>(
-        iter, func_wrapper<out_t>([] GPU_LAMBDA(acc_t a, acc_t b) -> acc_t {
-          return a + b;
-        }));
   }
 };
 
@@ -77,8 +72,8 @@ struct nansum_functor_complex {
 #if AT_USE_JITERATOR()
   void operator()(TensorIterator& iter) {
     std::string func = jiterator_stringify(
-        arg_t combine(arg_t a, scalar_t b) {
+        arg_t combine(arg_t a, arg_t b) {
-          return a + (std::isnan(b) ? arg_t{0.} : arg_t{b});
+          return a + (std::isnan(b) ? arg_t{0.} : b);
         }
     );
     jitted_gpu_reduce_kernel<nansum_name, scalar_t, scalar_t>(

aten/src/ATen/native/cuda/Shape.cu

@@ -464,6 +464,7 @@ void parallel_cat(const Tensor &out, const MaterializedITensorListRef& inputs, i
     }
 #endif
     int32_t trailingSize;
+    int nDimsLocal = nDims;
     TensorSizeStride<unsigned int, CAT_ARRAY_MAX_INPUT_DIMS> kernelOutputParam;
     if (isInOutAligned) {
       // in this case we can and should flatten the tensors after the cat dim
@@ -477,7 +478,7 @@ void parallel_cat(const Tensor &out, const MaterializedITensorListRef& inputs, i
       // and divide all strides except last by elems_per_vec (last stride is 1 always)
       // for input, we will fix up the sizes and strides in the kernel directly
       kernelOutputParam = outputParam;
-      nDims = dimension + 1;
+      nDimsLocal = dimension + 1;
       constexpr auto elems_per_vec = alignment / sizeof(scalar_t);
       auto out_size = dimension == 0 ? out.numel() : kernelOutputParam.tensorStride[dimension-1];
       kernelOutputParam.tensorSize[dimension] = out_size / elems_per_vec;
@@ -494,7 +495,7 @@ void parallel_cat(const Tensor &out, const MaterializedITensorListRef& inputs, i
       case 0:
         break;
       case 1:
-        cat_dim = nDims - cat_dim;
+        cat_dim = nDimsLocal - cat_dim;
         break;
       default:
         cat_dim--;
@@ -525,7 +526,7 @@ void parallel_cat(const Tensor &out, const MaterializedITensorListRef& inputs, i
               data, catMetaData, outputParam, cat_dim, outputParam.tensorStride[cat_dim]);\
     }\
     C10_CUDA_KERNEL_LAUNCH_CHECK();
-    switch (nDims) {
+    switch (nDimsLocal) {
       case 1:
         HANDLE_CASE(1);
         break;

aten/src/ATen/native/cuda/SortStable.cu

@@ -21,9 +21,15 @@ namespace {
 struct offset_t {
   int stride;
   int begin;
-  __device__ int operator[](int i) {
+  __device__ int operator[](int i) const {
     return stride * (begin + i);
   }
+#if CCCL_VERSION >= 3001000
+  __device__ offset_t& operator+=(int i) {
+    begin += i;
+    return *this;
+  }
+#endif
 };
 // Segmented sort by full sort algorithm:.
 // Say we are sorting a (2, 3) tensor. We have in flattened form:

aten/src/ATen/native/cuda/UpSample.cuh

@@ -277,7 +277,7 @@ struct BilinearFilterFunctor {
     return 0;
   }
 
-  static const int size = 2;
+  static constexpr int size = 2;
 };
 
 // taken from
@@ -301,7 +301,7 @@ struct BicubicFilterFunctor {
     return 0;
   }
 
-  static const int size = 4;
+  static constexpr int size = 4;
 };
 
 template <typename accscalar_t>

aten/src/ATen/native/cuda/UpSampleBilinear2d.cu

@@ -127,6 +127,29 @@ __global__ void upsample_bilinear2d_nhwc_out_frame(
   }
 }
 
+#ifdef USE_ROCM
+// Helper function to compute output pixel range that can contribute to input pixel
+template <typename accscalar_t>
+__device__ __forceinline__ void compute_output_range(
+    int input_pos,
+    accscalar_t scale,
+    int output_size,
+    bool align_corners,
+    int& min_output,
+    int& max_output) {
+  accscalar_t lo, hi;
+  if (align_corners) {
+      lo = static_cast<accscalar_t>(input_pos - 1) / scale;
+      hi = static_cast<accscalar_t>(input_pos + 1) / scale;
+  } else {
+      lo = (input_pos - static_cast<accscalar_t>(0.5)) / scale - static_cast<accscalar_t>(0.5);
+      hi = (input_pos + static_cast<accscalar_t>(1.5)) / scale - static_cast<accscalar_t>(0.5);
+  }
+  min_output = max(0, static_cast<int>(ceil(lo)));
+  max_output = min(output_size - 1, static_cast<int>(floor(hi)));
+}
+#endif
+
 // Backward (adjoint) operation 1 <- 2 (accumulates)
 template <typename scalar_t, typename accscalar_t>
 C10_LAUNCH_BOUNDS_1(1024)
@@ -141,8 +164,74 @@ __global__ void upsample_bilinear2d_backward_out_frame(
     const bool align_corners,
     scalar_t* __restrict__ idata,
     const scalar_t* __restrict__ odata) {
-  const size_t o_numel = nc * width2 * height2;
+  // In C++, integer multiplication, like in standard arithmetic, is generally commutative.
   const size_t i_numel = nc * width1 * height1;
+#ifdef USE_ROCM
+  for (size_t index = blockDim.x * blockIdx.x + threadIdx.x; index < i_numel;
+       index += blockDim.x * gridDim.x) {
+    // Decode input pixel coordinates
+    size_t index_temp = index;
+    const int w1 = index_temp % width1;
+    index_temp /= width1;
+    const int h1 = index_temp % height1;
+    const size_t nc_idx = index_temp / height1;
+
+    accscalar_t grad_sum = 0;
+
+    // Find range of output pixels that could interpolate from this input pixel
+    int h2_min, h2_max, w2_min, w2_max;
+    compute_output_range<accscalar_t>(h1, rheight, height2, align_corners, h2_min, h2_max);
+    compute_output_range<accscalar_t>(w1, rwidth, width2, align_corners, w2_min, w2_max);
+
+    // Iterate over potential output pixels
+    for (int h2 = h2_min; h2 <= h2_max; h2++) {
+      for (int w2 = w2_min; w2 <= w2_max; w2++) {
+        // Compute source coordinates for this output pixel
+        const accscalar_t h1r = area_pixel_compute_source_index<accscalar_t>(
+            rheight, h2, align_corners, /*cubic=*/false);
+        const int h1_base = (int)h1r;
+        const int h1p = (h1_base < height1 - 1) ? 1 : 0;
+        const accscalar_t h1lambda = h1r - h1_base;
+        const accscalar_t h0lambda = static_cast<accscalar_t>(1) - h1lambda;
+
+        const accscalar_t w1r = area_pixel_compute_source_index<accscalar_t>(
+            rwidth, w2, align_corners, /*cubic=*/false);
+        const int w1_base = (int)w1r;
+        const int w1p = (w1_base < width1 - 1) ? 1 : 0;
+        const accscalar_t w1lambda = w1r - w1_base;
+        const accscalar_t w0lambda = static_cast<accscalar_t>(1) - w1lambda;
+
+        // Check if our input pixel participates in this interpolation and accumulate all weights
+        // At boundaries, h1p=0 or w1p=0 causes some sampling positions to collapse
+        // to the same pixel, so we need to accumulate weights from all matching positions
+        accscalar_t weight = 0;
+
+        // Check all four interpolation positions and accumulate weights
+        if (h1 == h1_base && w1 == w1_base) {
+          weight += h0lambda * w0lambda;  // top-left
+        }
+        if (h1 == h1_base && w1 == w1_base + w1p) {
+          weight += h0lambda * w1lambda;  // top-right (may be same as top-left if w1p=0)
+        }
+        if (h1 == h1_base + h1p && w1 == w1_base) {
+          weight += h1lambda * w0lambda;  // bottom-left (may be same as top-left if h1p=0)
+        }
+        if (h1 == h1_base + h1p && w1 == w1_base + w1p) {
+          weight += h1lambda * w1lambda;  // bottom-right (may collapse to other positions)
+        }
+
+        if (weight > 0) {
+          const size_t output_idx = nc_idx * height2 * width2 + h2 * width2 + w2;
+          grad_sum += weight * static_cast<accscalar_t>(odata[output_idx]);
+        }
+      }
+    }
+
+    // Write accumulated gradient (no atomics needed)
+    idata[index] = static_cast<scalar_t>(grad_sum);
+  }
+#else
+  const size_t o_numel = nc * width2 * height2;
   for (size_t index = blockDim.x * blockIdx.x + threadIdx.x; index < o_numel;
        index += blockDim.x * gridDim.x) {
     size_t index_temp = index;
@@ -191,6 +280,7 @@ __global__ void upsample_bilinear2d_backward_out_frame(
         static_cast<scalar_t>(h1lambda * w1lambda * d2val),
         true);
   }
+#endif
 }
 
 template <typename scalar_t, typename accscalar_t>
@@ -387,7 +477,6 @@ static void upsample_bilinear2d_backward_out_cuda_template(
   // threads are not covering the whole input tensor.
   grad_input.zero_();
 
-  const size_t num_kernels = nbatch * channels * output_height * output_width;
   const int num_threads = std::min(
       at::cuda::getCurrentDeviceProperties()->maxThreadsPerBlock, 1024);
   cudaStream_t stream = at::cuda::getCurrentCUDAStream();
@@ -397,6 +486,12 @@ static void upsample_bilinear2d_backward_out_cuda_template(
     return;
   }
 
+#ifdef USE_ROCM
+  constexpr bool use_input = true;
+#else
+  constexpr bool use_input = false;
+#endif
+
   AT_DISPATCH_FLOATING_TYPES_AND2(
       at::ScalarType::Half, at::ScalarType::BFloat16,
       grad_output_.scalar_type(), "upsample_bilinear2d_backward_out_frame", [&] {
@@ -414,6 +509,8 @@ static void upsample_bilinear2d_backward_out_cuda_template(
       const accscalar_t rwidth = area_pixel_compute_scale<accscalar_t>(
           input_width, output_width, align_corners, scales_w);
 
+      const size_t num_kernels = nbatch * channels * output_height * output_width;
+
       upsample_bilinear2d_backward_nhwc_out_frame<scalar_t, accscalar_t>
           <<<ceil_div(num_kernels, static_cast<size_t>(num_threads)), num_threads, 0, stream>>>(
               input_height,
@@ -444,6 +541,8 @@ static void upsample_bilinear2d_backward_out_cuda_template(
       const accscalar_t rwidth = area_pixel_compute_scale<accscalar_t>(
           input_width, output_width, align_corners, scales_w);
 
+      const size_t num_kernels = nbatch * channels * (use_input ? input_height * input_width : output_height * output_width);
+
       upsample_bilinear2d_backward_out_frame<scalar_t, accscalar_t>
           <<<ceil_div(num_kernels, static_cast<size_t>(num_threads)),
              num_threads,

aten/src/ATen/native/cuda/layer_norm_kernel.cu

@@ -141,7 +141,11 @@ WelfordDataLN cuWelfordOnlineSum(
   if constexpr (!rms_norm){
     U delta = val - curr_sum.mean;
     U new_count = curr_sum.count + 1.f;
+#if defined(USE_ROCM) && defined(USE_LAYERNORM_FAST_RECIPROCAL)
+    U new_mean = curr_sum.mean + delta * __builtin_amdgcn_rcpf(new_count);
+#else
     U new_mean = curr_sum.mean + delta * (1.f/new_count); //proper division is slow, this is less accurate but noticeably faster
+#endif
     return {new_mean, curr_sum.sigma2 + delta * (val - new_mean), new_count};
   } else{
     return {0.f, curr_sum.sigma2 + val * val, 0};
@@ -159,7 +163,11 @@ WelfordDataLN cuWelfordCombine(
     U count = dataA.count + dataB.count;
     U mean, sigma2;
     if (count > decltype(dataB.count){0}) {
+#if defined(USE_ROCM) && defined(USE_LAYERNORM_FAST_RECIPROCAL)
+      auto coef = __builtin_amdgcn_rcpf(count);
+#else
       auto coef = 1.f/count; //NB we don't use --use_fast_math, but this is emulation, 1./count goes to intrinsic, `* coef` is multiplication, instead of slow fp division
+#endif
       auto nA = dataA.count * coef;
       auto nB = dataB.count * coef;
       mean = nA*dataA.mean + nB*dataB.mean;

aten/src/ATen/native/cuda/reduction_template.cuh

@@ -466,7 +466,11 @@ struct ReduceJitOp {
 
     __syncthreads();
 
+    #ifdef USE_ROCM
     for (int offset = 1; offset < dim_x; offset <<= 1) {
+    #else
+    for (int offset = dim_x >> 1; offset > 0; offset >>= 1) {
+    #endif
       #pragma unroll
       for (int i = 0; i < output_vec_size; i++) {
         arg_t other = reducer::warp_shfl_down(value[i], offset);

aten/src/ATen/native/mkldnn/Conv.cpp

@@ -160,8 +160,12 @@ static bool mkldnn_conv_enabled_fpmath_mode_bf16(){
 }
 
 static bool mkldnn_conv_enabled_fpmath_mode_tf32(){
-  return at::globalContext().float32Precision(at::Float32Backend::MKLDNN, at::Float32Op::CONV) == at::Float32Precision::TF32 &&
+#if defined(__x86_64__) || defined(_M_X64)
-      cpuinfo_has_x86_amx_fp16();
+    return at::globalContext().float32Precision(at::Float32Backend::MKLDNN, at::Float32Op::CONV) == at::Float32Precision::TF32 &&
+        cpuinfo_has_x86_amx_fp16();
+#else
+    return false;   //TF32 not supported on power system
+#endif
 }
 
 static inline at::MemoryFormat mkldnn_convolution_memory_format(int64_t dims, bool is_channels_last) {

aten/src/ATen/native/mkldnn/Linear.cpp

@@ -74,8 +74,12 @@ static bool use_mkldnn_bf32_linear() {
 }
 
 static bool use_mkldnn_tf32_linear() {
-  return at::globalContext().float32Precision(at::Float32Backend::MKLDNN, at::Float32Op::MATMUL) == at::Float32Precision::TF32 &&
+#if defined(__x86_64__) || defined(_M_X64)
+    return at::globalContext().float32Precision(at::Float32Backend::MKLDNN, at::Float32Op::MATMUL) == at::Float32Precision::TF32 &&
       cpuinfo_has_x86_amx_fp16();
+#else
+  return false;  // TF32 not supported on power system
+#endif
 }
 
 Tensor mkldnn_linear(

aten/src/ATen/native/mkldnn/Matmul.cpp

@@ -114,8 +114,13 @@ static bool use_mkldnn_bf32_matmul() {
   return use_mkldnn_bf16_matmul() && at::globalContext().float32Precision(at::Float32Backend::MKLDNN, at::Float32Op::MATMUL) == at::Float32Precision::BF16;
 }
 
+
 static bool use_mkldnn_tf32_matmul() {
-  return cpuinfo_has_x86_amx_fp16() && at::globalContext().float32Precision(at::Float32Backend::MKLDNN, at::Float32Op::MATMUL) == at::Float32Precision::TF32;
+#if defined(__x86_64__) || defined(_M_X64)
+    return cpuinfo_has_x86_amx_fp16() && at::globalContext().float32Precision(at::Float32Backend::MKLDNN, at::Float32Op::MATMUL) == at::Float32Precision::TF32;
+#else
+    return false;  // TF32 not supported on power system
+#endif
 }
 
 // returns an ideep::tensor
@@ -411,7 +416,7 @@ static inline bool checksize(const Tensor& mat1, const Tensor& mat2){
   // else if dim = 3, mat1's size = (b * m * n), mat2's size = (b * n * k)
   // else called from aten::mv, mat1.size = (m * n), mat2.size = (n)
   // only m * n * b * k(if exist) are large enough we can get benefit from mkldnn optimized gemm kernel
-  static const int64_t mkldnn_gemm_min_size = 16 * 16 * 16;
+  constexpr int64_t mkldnn_gemm_min_size = 16 * 16 * 16;
   if (mat1.dim() == 1 && mat2.dim() == 1) {
     // aten::dot
     return mat1.size(0) > mkldnn_gemm_min_size;

aten/src/ATen/native/mps/OperationUtils.mm

@@ -712,7 +712,7 @@ Tensor wrapped_scalar_tensor_mps(const Scalar& scalar, const Device device) {
   } else if (scalar.isBoolean()) {
     tensor = at::scalar_tensor(scalar, at::device(device).dtype(at::kBool));
   } else if (scalar.isComplex()) {
-    tensor = at::scalar_tensor(scalar, at::device(device).dtype(at::kComplexDouble));
+    tensor = at::scalar_tensor(scalar, at::device(device).dtype(at::kComplexFloat));
   } else {
     TORCH_INTERNAL_ASSERT(scalar.isIntegral(false));
     tensor = at::scalar_tensor(scalar, at::device(device).dtype(at::kLong));

aten/src/ATen/native/mps/kernels/Shape.h

@@ -1,16 +1,16 @@
 #pragma once
 #include <c10/metal/common.h>
 
-template <unsigned N = c10::metal::max_ndim, typename idx_type_t = int64_t>
+template <typename idx_type_t = int64_t, unsigned N = c10::metal::max_ndim>
-struct CatLargeSharedParams {
+struct CatSharedParams {
   int32_t ndim;
   int32_t cat_dim;
   ::c10::metal::array<idx_type_t, N> output_strides;
   ::c10::metal::array<idx_type_t, N> output_sizes;
 };
 
-template <unsigned N = c10::metal::max_ndim, typename idx_type_t = int64_t>
+template <typename idx_type_t = int64_t, unsigned N = c10::metal::max_ndim>
-struct CatLargeInputParams {
+struct CatInputParams {
   idx_type_t cat_dim_offset;
   idx_type_t input_element_offset;
   ::c10::metal::array<idx_type_t, N> input_strides;

aten/src/ATen/native/mps/kernels/Shape.metal

@@ -6,26 +6,25 @@
 using namespace metal;
 using namespace c10::metal;
 
-template <typename T_in, typename T_out>
+template <typename I, typename T_in, typename T_out>
-kernel void cat_large(
+kernel void cat(
     constant T_in* input [[buffer(0)]],
     device T_out* output [[buffer(1)]],
-    constant CatLargeSharedParams<>& shared_params [[buffer(2)]],
+    constant CatSharedParams<I>& shared_params [[buffer(2)]],
-    constant CatLargeInputParams<>& input_params [[buffer(3)]],
+    constant CatInputParams<I>& input_params [[buffer(3)]],
     uint tid [[thread_position_in_grid]]) {
   auto ndim = shared_params.ndim;
   auto cat_dim = shared_params.cat_dim;
   constant auto& output_strides = shared_params.output_strides;
-  constant auto& output_sizes = shared_params.output_sizes;
 
   auto cat_dim_offset = input_params.cat_dim_offset;
   auto input_element_offset = input_params.input_element_offset;
   constant auto& input_strides = input_params.input_strides;
   constant auto& input_sizes = input_params.input_sizes;
 
-  auto input_element_idx = static_cast<int64_t>(tid) + input_element_offset;
+  auto input_element_idx = static_cast<I>(tid) + input_element_offset;
-  int64_t input_offset = 0;
+  I input_offset = 0;
-  int64_t output_offset = 0;
+  I output_offset = 0;
 
   for (auto dim = ndim - 1; dim >= 0; dim--) {
     auto dim_size = input_sizes[dim];
@@ -42,41 +41,45 @@ kernel void cat_large(
   output[output_offset] = static_cast<T_out>(input[input_offset]);
 }
 
-#define REGISTER_CAT_LARGE_OP(T_in, T_out)                           \
+#define REGISTER_CAT_OP(I, T_in, T_out)                          \
-  template [[host_name("cat_large_" #T_in "_" #T_out)]]              \
+  template [[host_name("cat_" #I "_" #T_in "_" #T_out)]]         \
-  kernel void cat_large<T_in, T_out>(                                \
+  kernel void cat<I, T_in, T_out>(                               \
-      constant T_in * input [[buffer(0)]],                           \
+      constant T_in * input [[buffer(0)]],                       \
-      device T_out * output [[buffer(1)]],                           \
+      device T_out * output [[buffer(1)]],                       \
-      constant CatLargeSharedParams<> & shared_params [[buffer(2)]], \
+      constant CatSharedParams<I> & shared_params [[buffer(2)]], \
-      constant CatLargeInputParams<> & input_params [[buffer(3)]],   \
+      constant CatInputParams<I> & input_params [[buffer(3)]],   \
       uint tid [[thread_position_in_grid]]);
 
-#define REGISTER_CAT_LARGE_OP_ALL_INPUT_TYPES(T_out) \
+#define REGISTER_CAT_OP_ALL_INPUT_TYPES(I, T_out) \
-  REGISTER_CAT_LARGE_OP(float, T_out);               \
+  REGISTER_CAT_OP(I, float, T_out);               \
-  REGISTER_CAT_LARGE_OP(half, T_out);                \
+  REGISTER_CAT_OP(I, half, T_out);                \
-  REGISTER_CAT_LARGE_OP(bfloat, T_out);              \
+  REGISTER_CAT_OP(I, bfloat, T_out);              \
-  REGISTER_CAT_LARGE_OP(int, T_out);                 \
+  REGISTER_CAT_OP(I, int, T_out);                 \
-  REGISTER_CAT_LARGE_OP(uint, T_out);                \
+  REGISTER_CAT_OP(I, uint, T_out);                \
-  REGISTER_CAT_LARGE_OP(long, T_out);                \
+  REGISTER_CAT_OP(I, long, T_out);                \
-  REGISTER_CAT_LARGE_OP(ulong, T_out);               \
+  REGISTER_CAT_OP(I, ulong, T_out);               \
-  REGISTER_CAT_LARGE_OP(short, T_out);               \
+  REGISTER_CAT_OP(I, short, T_out);               \
-  REGISTER_CAT_LARGE_OP(ushort, T_out);              \
+  REGISTER_CAT_OP(I, ushort, T_out);              \
-  REGISTER_CAT_LARGE_OP(char, T_out);                \
+  REGISTER_CAT_OP(I, char, T_out);                \
-  REGISTER_CAT_LARGE_OP(uchar, T_out);               \
+  REGISTER_CAT_OP(I, uchar, T_out);               \
-  REGISTER_CAT_LARGE_OP(bool, T_out);
+  REGISTER_CAT_OP(I, bool, T_out);
 
-REGISTER_CAT_LARGE_OP_ALL_INPUT_TYPES(float);
+#define REGISTER_CAT_FOR_INDEX_TYPE(I)        \
-REGISTER_CAT_LARGE_OP_ALL_INPUT_TYPES(half);
+  REGISTER_CAT_OP_ALL_INPUT_TYPES(I, float);  \
-REGISTER_CAT_LARGE_OP_ALL_INPUT_TYPES(bfloat);
+  REGISTER_CAT_OP_ALL_INPUT_TYPES(I, half);   \
-REGISTER_CAT_LARGE_OP_ALL_INPUT_TYPES(int);
+  REGISTER_CAT_OP_ALL_INPUT_TYPES(I, bfloat); \
-REGISTER_CAT_LARGE_OP_ALL_INPUT_TYPES(uint);
+  REGISTER_CAT_OP_ALL_INPUT_TYPES(I, int);    \
-REGISTER_CAT_LARGE_OP_ALL_INPUT_TYPES(long);
+  REGISTER_CAT_OP_ALL_INPUT_TYPES(I, uint);   \
-REGISTER_CAT_LARGE_OP_ALL_INPUT_TYPES(ulong);
+  REGISTER_CAT_OP_ALL_INPUT_TYPES(I, long);   \
-REGISTER_CAT_LARGE_OP_ALL_INPUT_TYPES(short);
+  REGISTER_CAT_OP_ALL_INPUT_TYPES(I, ulong);  \
-REGISTER_CAT_LARGE_OP_ALL_INPUT_TYPES(ushort);
+  REGISTER_CAT_OP_ALL_INPUT_TYPES(I, short);  \
-REGISTER_CAT_LARGE_OP_ALL_INPUT_TYPES(char);
+  REGISTER_CAT_OP_ALL_INPUT_TYPES(I, ushort); \
-REGISTER_CAT_LARGE_OP_ALL_INPUT_TYPES(uchar);
+  REGISTER_CAT_OP_ALL_INPUT_TYPES(I, char);   \
-REGISTER_CAT_LARGE_OP_ALL_INPUT_TYPES(bool);
+  REGISTER_CAT_OP_ALL_INPUT_TYPES(I, uchar);  \
+  REGISTER_CAT_OP_ALL_INPUT_TYPES(I, bool);   \
+                                              \
+  REGISTER_CAT_OP(I, float2, float2);         \
+  REGISTER_CAT_OP(I, half2, half2);
 
-REGISTER_CAT_LARGE_OP(float2, float2);
+REGISTER_CAT_FOR_INDEX_TYPE(int64_t);
-REGISTER_CAT_LARGE_OP(half2, half2);
+REGISTER_CAT_FOR_INDEX_TYPE(int32_t);

aten/src/ATen/native/mps/operations/Blas.mm

@@ -54,6 +54,10 @@ Tensor dot_mps(const Tensor& self, const Tensor& other) {
   using namespace mps;
   using CachedGraph = MPSBinaryCachedGraph;
 
+  if (self.numel() == 0 & other.numel() == 0) {
+    return zeros({}, self.options());
+  }
+
   dot_check(self, other);
 
   auto output = at::empty({}, self.scalar_type(), std::nullopt, kMPS, std::nullopt, std::nullopt);

aten/src/ATen/native/mps/operations/Indexing.mm

@@ -907,6 +907,8 @@ Tensor& index_fill_mps_(Tensor& self, int64_t dim, const Tensor& index, const Te
   TORCH_CHECK(index.scalar_type() == ScalarType::Long || index.scalar_type() == ScalarType::Int,
               "index_fill_(): Expected dtype int32 or int64 for index");
   TORCH_CHECK(dim == 0 || dim < self.dim(), "index_fill_(): Indexing dim ", dim, " is out of bounds of tensor");
+  TORCH_CHECK(self.is_complex() || !source.is_complex(),
+              "index_fill_(): Converting complex Scalar to non-complex type is not supported");
   // MPS.scatter crashes if used with complex dtypes
   TORCH_CHECK(!c10::isComplexType(self.scalar_type()), "index_fill_(): Complex types are yet not supported");
 

aten/src/ATen/native/mps/operations/Shape.mm

@@ -3,6 +3,7 @@
 #include <ATen/MemoryOverlap.h>
 #include <ATen/WrapDimUtils.h>
 #include <ATen/mps/MPSProfiler.h>
+#include <ATen/native/Pool.h>
 #include <ATen/native/TensorShape.h>
 #include <ATen/native/TypeProperties.h>
 #include <ATen/native/mps/OperationUtils.h>
@@ -69,29 +70,40 @@ static void check_shape_except_dim(const Tensor& first, const Tensor& second, in
   }
 }
 
-// This implementation of cat is used only if one of the inputs or the output is
+template <typename T>
-// too large to use MPSGraph.
+std::string get_type_str();
+
+template <>
+std::string get_type_str<int64_t>() {
+  return "int64_t";
+}
+
+template <>
+std::string get_type_str<int32_t>() {
+  return "int32_t";
+}
+
 // NOTE: `output` is expected to already have the correct size.
-static void cat_out_large_tensor_mps(const ITensorListRef& inputs, int64_t dimension, const Tensor& output) {
+template <typename idx_type_t>
-  CatLargeSharedParams shared_params;
+static void cat_out_mps_impl(const ITensorListRef& inputs, int64_t dimension, const Tensor& output) {
+  CatSharedParams<idx_type_t> shared_params;
 
   shared_params.ndim = output.dim();
   shared_params.cat_dim = dimension;
 
   for (const auto dim : c10::irange(output.dim())) {
-    shared_params.output_strides[dim] = output.stride(dim);
+    shared_params.output_strides[dim] = safe_downcast<idx_type_t, int64_t>(output.stride(dim));
-    shared_params.output_sizes[dim] = output.size(dim);
+    shared_params.output_sizes[dim] = safe_downcast<idx_type_t, int64_t>(output.size(dim));
   }
 
-  int64_t cat_dim_offset = 0;
+  idx_type_t cat_dim_offset = 0;
   size_t input_idx = 0;
   MPSStream* stream = getCurrentMPSStream();
 
-  // Launch a separate kernels for each input. This will produce some overhead,
+  // Launch a separate kernels for each input. This will produce some overhead.
-  // but that should be relatively minimal since at least one of the inputs is
+  // In order to launch only one kernel to process all inputs, we would have to
-  // very large. In order to launch only one kernel to process all inputs, we
+  // copy all the input tensor data into a packed buffer, which would not be
-  // would have to copy all the input tensor data into a packed buffer, which
+  // ideal.
-  // would not be ideal.
   for (const Tensor& input : inputs) {
     if (input.numel() == 0) {
       continue;
@@ -104,21 +116,23 @@ static void cat_out_large_tensor_mps(const ITensorListRef& inputs, int64_t dimen
 
     for (int64_t numel_remaining = input.numel(); numel_remaining > 0; numel_remaining -= max_num_threads) {
       auto num_threads = std::min(max_num_threads, numel_remaining);
-      CatLargeInputParams input_params;
+      CatInputParams<idx_type_t> input_params;
 
-      input_params.cat_dim_offset = cat_dim_offset;
+      input_params.cat_dim_offset = safe_downcast<idx_type_t, int64_t>(cat_dim_offset);
-      input_params.input_element_offset = input.numel() - numel_remaining;
+      input_params.input_element_offset = safe_downcast<idx_type_t, int64_t>(input.numel() - numel_remaining);
 
       for (const auto dim : c10::irange(input.dim())) {
-        input_params.input_strides[dim] = input.stride(dim);
+        input_params.input_strides[dim] = safe_downcast<idx_type_t, int64_t>(input.stride(dim));
-        input_params.input_sizes[dim] = input.size(dim);
+        input_params.input_sizes[dim] = safe_downcast<idx_type_t, int64_t>(input.size(dim));
       }
 
       dispatch_sync_with_rethrow(stream->queue(), ^() {
         @autoreleasepool {
           id<MTLComputeCommandEncoder> computeEncoder = stream->commandEncoder();
-          auto pipeline_state = lib.getPipelineStateForFunc(
+          auto pipeline_state = lib.getPipelineStateForFunc(fmt::format("cat_{}_{}_{}",
-              fmt::format("cat_large_{}_{}", scalarToMetalTypeString(input), scalarToMetalTypeString(output)));
+                                                                        get_type_str<idx_type_t>(),
+                                                                        scalarToMetalTypeString(input),
+                                                                        scalarToMetalTypeString(output)));
           getMPSProfiler().beginProfileKernel(pipeline_state, "cat", {input});
           [computeEncoder setComputePipelineState:pipeline_state];
           mtl_setArgs(computeEncoder, input, output, shared_params, input_params);
@@ -294,13 +308,6 @@ TORCH_IMPL_FUNC(cat_out_mps)
               " and out is on ",
               out.device());
 
-  // TODO: For better performance by eliminating input tensor gathering and post transpose,
-  // TODO: it is better to keep the out tensor's memory format.
-  // TODO: dimension needs to be recomputed as:
-  // TODO: dim = 0 --> dim = 0; dim = 1 or 2 --> dim = out.dim()- dim; otherwise dim = dim-1
-  if (needsGather(out)) {
-    out.unsafeGetTensorImpl()->empty_tensor_restride(MemoryFormat::Contiguous);
-  }
   std::vector<int64_t> size(notSkippedTensor.sizes().vec());
 
   // Compute size of the result in the cat dimension
@@ -331,82 +338,9 @@ TORCH_IMPL_FUNC(cat_out_mps)
   has_large_tensor |= isTooLargeForMPSGraph(out);
 
   if (has_large_tensor) {
-    return mps::cat_out_large_tensor_mps(materialized_inputs, dimension, out);
+    return mps::cat_out_mps_impl<int64_t>(materialized_inputs, dimension, out);
-  }
+  } else {
-
+    return mps::cat_out_mps_impl<int32_t>(materialized_inputs, dimension, out);
-  struct CachedGraph : public MPSCachedGraph {
-    CachedGraph(MPSGraph* graph) : MPSCachedGraph(graph) {}
-    std::vector<MPSGraphTensor*> inputTensors_;
-    MPSGraphTensor* outputTensor_ = nil;
-  };
-
-  @autoreleasepool {
-    std::string key = "cat_out_mps:" + std::to_string(dimension) + ":" +
-        (memory_format == MemoryFormat::ChannelsLast ? "NHWC" : "NCHW");
-    if (!all_same_dtype) {
-      key += getTensorsStringKey(input_tensors, true, all_same_sizes_and_stride);
-    } else {
-      key += ":" + getMPSTypeString(input_tensors[0].scalar_type(), true) + ":" + std::to_string(inputs.size());
-    }
-    for (auto idx : skipped_tensor_indices) {
-      key += "," + std::to_string(idx);
-    }
-
-    auto cachedGraph = LookUpOrCreateCachedGraph<CachedGraph>(key, [&](auto mpsGraph, auto newCachedGraph) {
-      auto len_tensor_array = inputs.size() - skipped_tensor_indices.size();
-      std::vector<MPSGraphTensor*> castInputTensors(len_tensor_array);
-      newCachedGraph->inputTensors_.reserve(len_tensor_array);
-
-      for (const auto idx : c10::irange(len_tensor_array)) {
-        const Tensor& tensor = input_tensors[idx];
-        auto scalar_type = getMPSScalarType(tensor.scalar_type());
-        if (tensor.scalar_type() == kBool) {
-          scalar_type = MPSDataTypeInt8;
-        }
-        newCachedGraph->inputTensors_[idx] = mpsGraphUnrankedPlaceHolder(mpsGraph, scalar_type);
-        if (tensor.scalar_type() != out_dtype) {
-          castInputTensors[idx] = [mpsGraph castTensor:newCachedGraph->inputTensors_[idx]
-                                                toType:getMPSDataType(out_dtype)
-                                                  name:@"castInput"];
-        } else {
-          castInputTensors[idx] = newCachedGraph->inputTensors_[idx];
-        }
-      }
-
-      auto inputTensorsArray = [NSArray arrayWithObjects:castInputTensors.data() count:len_tensor_array];
-      MPSGraphTensor* outputTensor = [mpsGraph concatTensors:inputTensorsArray
-                                                   dimension:dimension // Maybe convert this from int64_t -> int32
-                                                        name:nil];
-      if (getMPSDataType(out_dtype) == MPSDataTypeBool) {
-        outputTensor = [mpsGraph castTensor:outputTensor toType:MPSDataTypeBool name:@"outputTensor"];
-      }
-      newCachedGraph->outputTensor_ = outputTensor;
-    });
-
-    std::vector<Placeholder> inputPlaceholders;
-    int i = 0;
-    int t_idx = 0;
-    for (const Tensor& tensor : materialized_inputs) {
-      if (std::find(skipped_tensor_indices.begin(), skipped_tensor_indices.end(), i) == skipped_tensor_indices.end()) {
-        auto scalar_type = getMPSScalarType(tensor.scalar_type());
-        if (tensor.scalar_type() == kBool) {
-          scalar_type = MPSDataTypeInt8;
-        }
-        inputPlaceholders.emplace_back(cachedGraph->inputTensors_[t_idx], tensor, nullptr, true, scalar_type);
-        t_idx++;
-      }
-      i++;
-    }
-
-    auto outputDataType = getMPSScalarType(out.scalar_type());
-    Placeholder outputPlaceholder =
-        Placeholder(cachedGraph->outputTensor_, out, /*mpsShape=*/nil, /*gatherTensorData=*/false, outputDataType);
-
-    NSMutableDictionary* feeds = [[NSMutableDictionary new] autorelease];
-    for (auto& inputPlaceholder : inputPlaceholders) {
-      feeds[inputPlaceholder.getMPSGraphTensor()] = inputPlaceholder.getMPSGraphTensorData();
-    }
-    runMPSGraph(getCurrentMPSStream(), cachedGraph->graph(), feeds, outputPlaceholder);
   }
 }
 

aten/src/ATen/native/native_functions.yaml

@@ -6531,6 +6531,7 @@
   dispatch:
     CPU, CUDA: var
     MPS: var_mps
+    MTIA: var_mtia
   tags: core
 
 - func: var.out(Tensor self, int[1]? dim, bool unbiased=True, bool keepdim=False, *, Tensor(a!) out) -> Tensor(a!)
@@ -7183,6 +7184,12 @@
     CUDA: _scaled_grouped_mm_cuda
   tags: needs_exact_strides
 
+- func: _scaled_grouped_mm_v2(Tensor self, Tensor mat2, Tensor[] scale_a, int[] recipe_a, int[] swizzle_a, Tensor[] scale_b, int[] recipe_b, int[] swizzle_b, Tensor? offs=None, Tensor? bias=None, ScalarType? out_dtype=None, int[] contraction_dim=[], bool use_fast_accum=False) -> Tensor
+  variants: function
+  dispatch:
+    CUDA: _scaled_grouped_mm_cuda_v2
+  tags: needs_exact_strides
+
 - func: _grouped_mm(Tensor self, Tensor mat2, Tensor? offs=None, Tensor? bias=None, ScalarType? out_dtype=None) -> Tensor
   variants: function
   dispatch:
@@ -7378,7 +7385,7 @@
 - func: sparse_mask(Tensor self, Tensor mask) -> Tensor
   variants: method
   dispatch:
-    SparseCPU, SparseCUDA: sparse_mask
+    SparseCPU, SparseCUDA, SparseMPS: sparse_mask
     SparseCsrCPU, SparseCsrCUDA, SparseCsrMeta: sparse_mask_sparse_compressed
   autogen: sparse_mask.out
 

aten/src/ATen/native/quantized/FakeQuantPerTensorAffine.cpp

@@ -184,15 +184,23 @@ std::tuple<Tensor, Tensor, Tensor> _fake_quantize_learnable_per_tensor_affine_ba
           0 & \text{ else }
         \end{cases}
   */
-  float scale_val = scale[0].item<float>();
-  float inv_scale_val = 1.0f / scale_val;
-  int64_t zero_point_val = native::_get_zero_point_from_tensor(zero_point, quant_min, quant_max, false);
 
-  TORCH_CHECK(dY.scalar_type() == ScalarType::Float);
+  bool is_bfloat16 = (X.scalar_type() == at::kBFloat16);
-  TORCH_CHECK(X.scalar_type() == ScalarType::Float);
+
-  TORCH_CHECK(scale.scalar_type() == ScalarType::Float);
+  at::Tensor X_ = is_bfloat16 ? X.to(ScalarType::Float) : X;
-  TORCH_CHECK(zero_point.scalar_type() == ScalarType::Float);
+  at::Tensor dY_ = is_bfloat16 ? dY.to(ScalarType::Float) : dY;
-  TORCH_CHECK(X.numel() == dY.numel(), "`X` and `dY` are not the same size");
+  at::Tensor scale_ = is_bfloat16 ? scale.to(ScalarType::Float) : scale;
+  at::Tensor zero_point_ = is_bfloat16 ? zero_point.to(ScalarType::Float) : zero_point;
+
+  float scale_val = scale_[0].item<float>();
+  float inv_scale_val = 1.0f / scale_val;
+  int64_t zero_point_val = native::_get_zero_point_from_tensor(zero_point_, quant_min, quant_max, false);
+
+  TORCH_CHECK(dY_.scalar_type() == ScalarType::Float);
+  TORCH_CHECK(X_.scalar_type() == ScalarType::Float);
+  TORCH_CHECK(scale_.scalar_type() == ScalarType::Float);
+  TORCH_CHECK(zero_point_.scalar_type() == ScalarType::Float);
+  TORCH_CHECK(X_.numel() == dY_.numel(), "`X` and `dY` are not the same size");
   TORCH_CHECK(
       quant_min <= 0 && quant_max >= 0,
       "`quant_min` should be less than or \
@@ -200,28 +208,28 @@ std::tuple<Tensor, Tensor, Tensor> _fake_quantize_learnable_per_tensor_affine_ba
   TORCH_CHECK(
       zero_point_val >= quant_min && zero_point_val <= quant_max,
       "`zero_point` must be between `quant_min` and `quant_max`.");
-  if (X.numel() <= 0) {
+  if (X_.numel() <= 0) {
     return std::make_tuple(X, scale, zero_point);
   }
 
-  auto dX = at::empty_like(X, X.options(), MemoryFormat::Preserve);
+  auto dX = at::empty_like(X_, X_.options(), MemoryFormat::Preserve);
-  auto dScale_vec = at::empty_like(X, X.options(), MemoryFormat::Preserve);
+  auto dScale_vec = at::empty_like(X_, X_.options(), MemoryFormat::Preserve);
-  auto dZeroPoint_vec = at::empty_like(X, X.options(), MemoryFormat::Preserve);
+  auto dZeroPoint_vec = at::empty_like(X_, X_.options(), MemoryFormat::Preserve);
 
   auto iter = TensorIteratorConfig()
     .add_output(dX)
     .add_output(dScale_vec)
     .add_output(dZeroPoint_vec)
-    .add_input(X)
+    .add_input(X_)
-    .add_input(dY)
+    .add_input(dY_)
     .build();
 
   fake_quant_grad_learnable_tensor_stub(
-    X.device().type(), iter, scale_val, inv_scale_val, zero_point_val, quant_min, quant_max, grad_factor);
+    X_.device().type(), iter, scale_val, inv_scale_val, zero_point_val, quant_min, quant_max, grad_factor);
 
   // The total sums over the scale and zero point gradient vectors are what will be returned in the end.
-  auto dScale = dScale_vec.sum().unsqueeze(0).to(scale.device());
+  auto dScale = dScale_vec.sum().unsqueeze(0).to(scale_.device());
-  auto dZeroPoint = dZeroPoint_vec.sum().unsqueeze(0).to(zero_point.device());
+  auto dZeroPoint = dZeroPoint_vec.sum().unsqueeze(0).to(zero_point_.device());
 
   return std::make_tuple(dX, dScale, dZeroPoint);
 }

aten/src/ATen/native/quantized/cpu/kernels/QuantizedOpKernels.cpp

@@ -3551,7 +3551,7 @@ void dequantize_tensor_per_tensor_affine_cpu(
 
 #if defined(__ARM_NEON__) || defined(__aarch64__)
 
-const static int PARALLEL_THRESHOLD = 1 << 20;
+constexpr static int PARALLEL_THRESHOLD = 1 << 20;
 
 // Generic template defaults to naive quantize implementation
 template <typename T>