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Fixes https://github.com/pytorch/pytorch/issues/141332 `F.logsigmoid` will return two outputs: `output` and `buffer`. For `F.logsigmoid` cpu path, it will use buffer to store some intermediate values and use them when computing gradients, so it returns a `buffer` tensor with nonzero size. For cuda and xpu paths, buffer is useless, so the `buffer ` tensor size of xpu `F.logsigmoid` will be zero, just like cuda. The root cause of the issue is that the codes in `decompositions.py` (ref:https://github.com/pytorch/pytorch/blob/main/torch/_decomp/decompositions.py#L2803) only handle the cuda cases, when the a fake tensor with device is xpu run to here, it will use the cpu path and return a `buffer` with nonzero size, which is conflict to the implementation of intel xpu concrete tensor. Therefore this pr add conditions to handle xpu cases. Make sure the two returned buffer sizes match each other. Pull Request resolved: https://github.com/pytorch/pytorch/pull/141333 Approved by: https://github.com/guangyey, https://github.com/EikanWang, https://github.com/ezyang
This folder contains a number of scripts which are used as
part of the PyTorch build process. This directory also doubles
as a Python module hierarchy (thus the __init__.py).
Overview
Modern infrastructure:
- autograd - Code generation for autograd. This includes definitions of all our derivatives.
- jit - Code generation for JIT
- shared - Generic infrastructure that scripts in
tools may find useful.
- module_loader.py - Makes it easier to import arbitrary Python files in a script, without having to add them to the PYTHONPATH first.
Build system pieces:
- setup_helpers - Helper code for searching for third-party dependencies on the user system.
- build_pytorch_libs.py - cross-platform script that builds all of the constituent libraries of PyTorch, but not the PyTorch Python extension itself.
- build_libtorch.py - Script for building libtorch, a standalone C++ library without Python support. This build script is tested in CI.
Developer tools which you might find useful:
- git_add_generated_dirs.sh and git_reset_generated_dirs.sh - Use this to force add generated files to your Git index, so that you can conveniently run diffs on them when working on code-generation. (See also generated_dirs.txt which specifies the list of directories with generated files.)
Important if you want to run on AMD GPU:
- amd_build - HIPify scripts, for transpiling CUDA
into AMD HIP. Right now, PyTorch and Caffe2 share logic for how to
do this transpilation, but have separate entry-points for transpiling
either PyTorch or Caffe2 code.
- build_amd.py - Top-level entry point for HIPifying our codebase.
Tools which are only situationally useful:
- docker - Dockerfile for running (but not developing) PyTorch, using the official conda binary distribution. Context: https://github.com/pytorch/pytorch/issues/1619
- download_mnist.py - Download the MNIST dataset; this is necessary if you want to run the C++ API tests.