torch-mlir/setup.py

118 lines
4.2 KiB
Python

# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
# Also available under a BSD-style license. See LICENSE.
# Script for generating the torch-mlir wheel.
# ```
# $ python setup.py bdist_wheel
# ```
#
# It is recommended to build with Ninja and ccache. To do so, set environment
# variables by prefixing to above invocations:
# ```
# CMAKE_GENERATOR=Ninja CMAKE_C_COMPILER_LAUNCHER=ccache CMAKE_CXX_COMPILER_LAUNCHER=ccache
# ```
#
# On CIs, it is often advantageous to re-use/control the CMake build directory.
# This can be set with the TORCH_MLIR_CMAKE_BUILD_DIR env var.
# Additionally, the TORCH_MLIR_CMAKE_BUILD_DIR_ALREADY_BUILT env var will
# prevent this script from attempting to build the directory, and will simply
# use the (presumed already built) directory as-is.
#
# Implementation notes:
# The contents of the wheel is just the contents of the `python_packages`
# directory that our CMake build produces. We go through quite a bit of effort
# on the CMake side to organize that directory already, so we avoid duplicating
# that here, and just package up its contents.
import os
import shutil
import subprocess
import sys
from distutils.command.build import build as _build
from setuptools import setup, Extension
from setuptools.command.build_ext import build_ext
from setuptools.command.build_py import build_py
# Build phase discovery is unreliable. Just tell it what phases to run.
class CustomBuild(_build):
def run(self):
self.run_command("build_py")
self.run_command("build_ext")
self.run_command("build_scripts")
class CMakeBuild(build_py):
def run(self):
target_dir = self.build_lib
cmake_build_dir = os.getenv("TORCH_MLIR_CMAKE_BUILD_DIR")
if not cmake_build_dir:
cmake_build_dir = os.path.join(target_dir, "..", "cmake_build")
if not os.getenv("TORCH_MLIR_CMAKE_BUILD_DIR_ALREADY_BUILT"):
src_dir = os.path.abspath(os.path.dirname(__file__))
llvm_dir = os.path.join(
src_dir, "external", "llvm-project", "llvm")
cmake_args = [
f"-DCMAKE_BUILD_TYPE=Release",
f"-DPython3_EXECUTABLE={sys.executable}",
f"-DLLVM_TARGETS_TO_BUILD=host",
f"-DMLIR_ENABLE_BINDINGS_PYTHON=ON",
f"-DLLVM_ENABLE_PROJECTS=mlir",
f"-DLLVM_EXTERNAL_PROJECTS=torch-mlir",
f"-DLLVM_EXTERNAL_TORCH_MLIR_SOURCE_DIR={src_dir}",
]
os.makedirs(cmake_build_dir, exist_ok=True)
cmake_cache_file = os.path.join(cmake_build_dir, "CMakeCache.txt")
if os.path.exists(cmake_cache_file):
os.remove(cmake_cache_file)
subprocess.check_call(["cmake", llvm_dir] +
cmake_args, cwd=cmake_build_dir)
subprocess.check_call(["cmake",
"--build", ".",
"--target", "TorchMLIRPythonModules"],
cwd=cmake_build_dir)
python_package_dir = os.path.join(cmake_build_dir,
"tools", "torch-mlir", "python_packages",
"torch_mlir")
shutil.copytree(python_package_dir,
target_dir,
symlinks=False,
dirs_exist_ok=True)
class CMakeExtension(Extension):
def __init__(self, name, sourcedir=""):
Extension.__init__(self, name, sources=[])
self.sourcedir = os.path.abspath(sourcedir)
class NoopBuildExtension(build_ext):
def build_extension(self, ext):
pass
setup(
name="torch-mlir",
version="0.0.1",
author="Sean Silva",
author_email="silvasean@google.com",
description="First-class interop between PyTorch and MLIR",
long_description="",
include_package_data=True,
cmdclass={
"build": CustomBuild,
"built_ext": NoopBuildExtension,
"build_py": CMakeBuild,
},
ext_modules=[
CMakeExtension("torch_mlir._mlir_libs._jit_ir_importer"),
],
zip_safe=False,
)