Add flashinfer-build.sh and register precompiled cu128 wheel in Dockerfile (#25782)

Signed-off-by: mgoin <mgoin64@gmail.com>
This commit is contained in:
Michael Goin
2025-09-26 21:54:09 -04:00
committed by GitHub
parent 3958b96bf5
commit 92da847cf5
2 changed files with 83 additions and 10 deletions

View File

@ -391,18 +391,28 @@ RUN --mount=type=cache,target=/root/.cache/uv bash - <<'BASH'
git clone --depth 1 --recursive --shallow-submodules \
--branch ${FLASHINFER_GIT_REF} \
${FLASHINFER_GIT_REPO} flashinfer
# Exclude CUDA arches for older versions (11.x and 12.0-12.7)
# TODO: Update this to allow setting TORCH_CUDA_ARCH_LIST as a build arg.
if [[ "${CUDA_VERSION}" == 11.* ]]; then
FI_TORCH_CUDA_ARCH_LIST="7.5 8.0 8.9"
elif [[ "${CUDA_VERSION}" == 12.[0-7]* ]]; then
FI_TORCH_CUDA_ARCH_LIST="7.5 8.0 8.9 9.0a"
else
# CUDA 12.8+ supports 10.0a and 12.0
FI_TORCH_CUDA_ARCH_LIST="7.5 8.0 8.9 9.0a 10.0a 12.0"
fi
pushd flashinfer
if [ "${FLASHINFER_AOT_COMPILE}" = "true" ]; then
# Exclude CUDA arches for older versions (11.x and 12.0-12.7)
# TODO: Update this to allow setting TORCH_CUDA_ARCH_LIST as a build arg.
if [[ "${CUDA_VERSION}" == 11.* ]]; then
FI_TORCH_CUDA_ARCH_LIST="7.5 8.0 8.9"
elif [[ "${CUDA_VERSION}" == 12.[0-7]* ]]; then
FI_TORCH_CUDA_ARCH_LIST="7.5 8.0 8.9 9.0a"
else
# CUDA 12.8+ supports 10.0a and 12.0
FI_TORCH_CUDA_ARCH_LIST="7.5 8.0 8.9 9.0a 10.0a 12.0"
if [[ "${CUDA_VERSION}" == 12.8.* ]] && [ "$TARGETPLATFORM" = "linux/amd64" ]; then
# NOTE: To make new precompiled wheels, see tools/flashinfer-build.sh
echo "🏗️ Installing FlashInfer from pre-compiled wheel"
uv pip install --system https://wheels.vllm.ai/flashinfer-python/flashinfer_python-0.3.1-cp39-abi3-manylinux1_x86_64.whl \
--extra-index-url ${PYTORCH_CUDA_INDEX_BASE_URL}/cu$(echo $CUDA_VERSION | cut -d. -f1,2 | tr -d '.')
if [ "${FLASHINFER_AOT_COMPILE}" = "true" ]; then
# Download pre-compiled cubins
TORCH_CUDA_ARCH_LIST="${FI_TORCH_CUDA_ARCH_LIST}" \
python3 -m flashinfer --download-cubin || echo "WARNING: Failed to download flashinfer cubins."
fi
elif [ "${FLASHINFER_AOT_COMPILE}" = "true" ]; then
echo "🏗️ Installing FlashInfer with AOT compilation for arches: ${FI_TORCH_CUDA_ARCH_LIST}"
export FLASHINFER_CUDA_ARCH_LIST="${FI_TORCH_CUDA_ARCH_LIST}"
# HACK: We need these to run flashinfer.aot before installing flashinfer, get from the package in the future

63
tools/flashinfer-build.sh Normal file
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@ -0,0 +1,63 @@
#!/usr/bin/env bash
# This script is used to build FlashInfer wheels with AOT kernels
set -ex
# FlashInfer configuration
FLASHINFER_GIT_REPO="https://github.com/flashinfer-ai/flashinfer.git"
FLASHINFER_GIT_REF="${FLASHINFER_GIT_REF}"
CUDA_VERSION="${CUDA_VERSION}"
BUILD_WHEEL="${BUILD_WHEEL:-true}"
if [[ -z "${FLASHINFER_GIT_REF}" ]]; then
echo "❌ FLASHINFER_GIT_REF must be specified" >&2
exit 1
fi
if [[ -z "${CUDA_VERSION}" ]]; then
echo "❌ CUDA_VERSION must be specified" >&2
exit 1
fi
echo "🏗️ Building FlashInfer ${FLASHINFER_GIT_REF} for CUDA ${CUDA_VERSION}"
# Clone FlashInfer
git clone --depth 1 --recursive --shallow-submodules \
--branch ${FLASHINFER_GIT_REF} \
${FLASHINFER_GIT_REPO} flashinfer
# Set CUDA arch list based on CUDA version
# Exclude CUDA arches for older versions (11.x and 12.0-12.7)
if [[ "${CUDA_VERSION}" == 11.* ]]; then
FI_TORCH_CUDA_ARCH_LIST="7.5 8.0 8.9"
elif [[ "${CUDA_VERSION}" == 12.[0-7]* ]]; then
FI_TORCH_CUDA_ARCH_LIST="7.5 8.0 8.9 9.0a"
else
# CUDA 12.8+ supports 10.0a and 12.0
FI_TORCH_CUDA_ARCH_LIST="7.5 8.0 8.9 9.0a 10.0a 12.0"
fi
echo "🏗️ Building FlashInfer AOT for arches: ${FI_TORCH_CUDA_ARCH_LIST}"
pushd flashinfer
# Make sure the wheel is built for the correct CUDA version
export UV_TORCH_BACKEND=cu$(echo $CUDA_VERSION | cut -d. -f1,2 | tr -d '.')
# Build AOT kernels
export TORCH_CUDA_ARCH_LIST="${FI_TORCH_CUDA_ARCH_LIST}"
export FLASHINFER_CUDA_ARCH_LIST="${FI_TORCH_CUDA_ARCH_LIST}"
python3 -m flashinfer.aot
if [[ "${BUILD_WHEEL}" == "true" ]]; then
# Build wheel for distribution
uv build --no-build-isolation --wheel --out-dir ../flashinfer-dist .
echo "✅ FlashInfer wheel built successfully in flashinfer-dist/"
else
# Install directly (for Dockerfile)
uv pip install --system --no-build-isolation --force-reinstall .
echo "✅ FlashInfer installed successfully"
fi
popd
# Cleanup
rm -rf flashinfer