Files
pytorch/tools
bobrenjc93 b14a14a662 [torchfuzz] make generated code much more concise and cleaner (#163812)
```
import torch

torch._dynamo.config.capture_scalar_outputs = True
torch.manual_seed(42)

def fuzzed_program(arg_0, arg_1, arg_2):
    var_node_3 = arg_0 # size=(1,), stride=(1,), dtype=complex128, device=cuda
    var_node_4 = torch.full((1,), (-0.29262632146522655-0.7687848816195035j), dtype=torch.complex128) # size=(1,), stride=(1,), dtype=complex128, device=cuda
    var_node_2 = torch.ops.aten.add(var_node_3, var_node_4) # size=(1,), stride=(1,), dtype=complex128, device=cuda
    var_node_6 = arg_1 # size=(1,), stride=(1,), dtype=complex128, device=cuda
    var_node_7 = arg_2 # size=(1,), stride=(1,), dtype=complex128, device=cuda
    var_node_5 = torch.ops.aten.add(var_node_6, var_node_7) # size=(1,), stride=(1,), dtype=complex128, device=cuda
    var_node_1 = torch.ops.aten.add(var_node_2, var_node_5) # size=(1,), stride=(1,), dtype=complex128, device=cuda
    var_node_0 = var_node_1.item() # dtype=complex128
    return var_node_0

arg_0 = torch.as_strided(torch.randn(1).to(torch.complex128), (1,), (1,))
arg_1 = torch.as_strided(torch.randn(1).to(torch.complex128), (1,), (1,))
arg_2 = torch.as_strided(torch.randn(1).to(torch.complex128), (1,), (1,))

args = (arg_0, arg_1, arg_2)
result_original = fuzzed_program(*args)
print(' eager success')
compiled_program = torch.compile(fuzzed_program, fullgraph=False, dynamic=True)
result_compiled = compiled_program(*args)
print(' compile success')
```
Pull Request resolved: https://github.com/pytorch/pytorch/pull/163812
Approved by: https://github.com/pianpwk
ghstack dependencies: #163743
2025-09-25 22:12:33 +00:00
..
2025-06-17 19:25:50 +00:00
2025-07-18 22:54:13 +00:00
2025-09-18 12:08:13 +00:00
2025-04-27 09:56:42 +00:00
2025-06-14 18:18:43 +00:00

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:

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: