mirror of
https://github.com/ml-explore/mlx.git
synced 2025-07-28 21:21:21 +08:00
301 lines
10 KiB
Python
301 lines
10 KiB
Python
# Copyright © 2023 Apple Inc.
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import datetime
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import os
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import platform
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import re
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import subprocess
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from functools import partial
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from pathlib import Path
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from subprocess import run
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from setuptools import Command, Extension, find_namespace_packages, setup
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from setuptools.command.bdist_wheel import bdist_wheel
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from setuptools.command.build_ext import build_ext
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def get_version():
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with open("mlx/version.h", "r") as fid:
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for l in fid:
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if "#define MLX_VERSION_MAJOR" in l:
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major = l.split()[-1]
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if "#define MLX_VERSION_MINOR" in l:
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minor = l.split()[-1]
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if "#define MLX_VERSION_PATCH" in l:
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patch = l.split()[-1]
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version = f"{major}.{minor}.{patch}"
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if "PYPI_RELEASE" not in os.environ:
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today = datetime.date.today()
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version = f"{version}.dev{today.year}{today.month:02d}{today.day:02d}"
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if "DEV_RELEASE" not in os.environ:
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git_hash = (
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run(
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"git rev-parse --short HEAD".split(),
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capture_output=True,
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check=True,
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)
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.stdout.strip()
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.decode()
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)
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version = f"{version}+{git_hash}"
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return version
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build_stage = int(os.environ.get("MLX_BUILD_STAGE", 0))
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# A CMakeExtension needs a sourcedir instead of a file list.
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# The name must be the _single_ output extension from the CMake build.
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# If you need multiple extensions, see scikit-build.
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class CMakeExtension(Extension):
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def __init__(self, name: str, sourcedir: str = "") -> None:
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super().__init__(name, sources=[])
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self.sourcedir = os.fspath(Path(sourcedir).resolve())
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class CMakeBuild(build_ext):
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def build_extension(self, ext: CMakeExtension) -> None:
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# Must be in this form due to bug in .resolve() only fixed in Python 3.10+
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ext_fullpath = Path.cwd() / self.get_ext_fullpath(ext.name) # type: ignore[no-untyped-call]
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extdir = ext_fullpath.parent.resolve()
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debug = int(os.environ.get("DEBUG", 0)) if self.debug is None else self.debug
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cfg = "Debug" if debug else "Release"
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build_temp = Path(self.build_temp) / ext.name
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if not build_temp.exists():
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build_temp.mkdir(parents=True)
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build_python = "ON"
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install_prefix = f"{extdir}{os.sep}"
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if build_stage == 1:
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# Don't include MLX libraries in the wheel
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install_prefix = f"{build_temp}"
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elif build_stage == 2:
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# Don't include Python bindings in the wheel
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build_python = "OFF"
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cmake_args = [
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f"-DCMAKE_INSTALL_PREFIX={install_prefix}",
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f"-DCMAKE_BUILD_TYPE={cfg}",
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f"-DMLX_BUILD_PYTHON_BINDINGS={build_python}",
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"-DMLX_BUILD_TESTS=OFF",
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"-DMLX_BUILD_BENCHMARKS=OFF",
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"-DMLX_BUILD_EXAMPLES=OFF",
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f"-DMLX_PYTHON_BINDINGS_OUTPUT_DIRECTORY={extdir}{os.sep}",
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]
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# Some generators require explcitly passing config when building.
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build_args = ["--config", cfg]
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# Adding CMake arguments set as environment variable
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# (needed e.g. to build for ARM OSx on conda-forge)
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if "CMAKE_ARGS" in os.environ:
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cmake_args += [item for item in os.environ["CMAKE_ARGS"].split(" ") if item]
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# Pass version to C++
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cmake_args += [f"-DMLX_VERSION={self.distribution.get_version()}"] # type: ignore[attr-defined]
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if platform.system() == "Darwin":
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# Cross-compile support for macOS - respect ARCHFLAGS if set
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archs = re.findall(r"-arch (\S+)", os.environ.get("ARCHFLAGS", ""))
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if archs:
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cmake_args += ["-DCMAKE_OSX_ARCHITECTURES={}".format(";".join(archs))]
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if platform.system() == "Windows":
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# On Windows DLLs must be put in the same dir with the extension
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# while cmake puts mlx.dll into the "bin" sub-dir. Link with mlx
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# statically to work around it.
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cmake_args += ["-DBUILD_SHARED_LIBS=OFF"]
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else:
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cmake_args += ["-DBUILD_SHARED_LIBS=ON"]
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# Set CMAKE_BUILD_PARALLEL_LEVEL to control the parallel build level
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# across all generators.
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if "CMAKE_BUILD_PARALLEL_LEVEL" not in os.environ:
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build_args += [f"-j{os.cpu_count()}"]
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subprocess.run(
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["cmake", ext.sourcedir, *cmake_args], cwd=build_temp, check=True
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)
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subprocess.run(
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["cmake", "--build", ".", "--target", "install", *build_args],
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cwd=build_temp,
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check=True,
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)
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# Make sure to copy mlx.metallib for inplace builds
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def run(self):
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super().run()
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# Based on https://github.com/pypa/setuptools/blob/main/setuptools/command/build_ext.py#L102
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if self.inplace:
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for ext in self.extensions:
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if ext.name == "mlx.core":
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# Resolve inplace package dir
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build_py = self.get_finalized_command("build_py")
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inplace_file, regular_file = self._get_inplace_equivalent(
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build_py, ext
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)
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inplace_dir = str(Path(inplace_file).parent.resolve())
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regular_dir = str(Path(regular_file).parent.resolve())
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self.copy_tree(regular_dir, inplace_dir)
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class GenerateStubs(Command):
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user_options = []
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def initialize_options(self):
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pass
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def finalize_options(self):
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pass
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def run(self) -> None:
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out_path = "python/mlx/core"
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stub_cmd = [
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"python",
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"-m",
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"nanobind.stubgen",
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"-m",
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"mlx.core",
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"-p",
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"python/mlx/_stub_patterns.txt",
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]
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subprocess.run(stub_cmd + ["-r", "-O", out_path])
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# Run again without recursive to specify output file name
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subprocess.run(["rm", f"{out_path}/mlx.pyi"])
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subprocess.run(stub_cmd + ["-o", f"{out_path}/__init__.pyi"])
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# mx.bool_ gets filtered by nanobind because of the trailing
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# underscore, add it manually:
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with open(f"{out_path}/__init__.pyi", "a") as fid:
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fid.write("\nbool_: Dtype = ...")
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class MLXBdistWheel(bdist_wheel):
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def get_tag(self) -> tuple[str, str, str]:
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impl, abi, plat_name = super().get_tag()
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if build_stage == 2:
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impl = self.python_tag
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abi = "none"
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return (impl, abi, plat_name)
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# Read the content of README.md
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with open(Path(__file__).parent / "README.md", encoding="utf-8") as f:
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long_description = f.read()
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if __name__ == "__main__":
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package_dir = {"": "python"}
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packages = find_namespace_packages(
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where="python",
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exclude=[
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"src",
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"tests",
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"scripts",
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"mlx.lib",
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"mlx.include",
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"mlx.share",
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"mlx.share.**",
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"mlx.include.**",
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],
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)
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build_macos = platform.system() == "Darwin"
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build_cuda = "MLX_BUILD_CUDA=ON" in os.environ.get("CMAKE_ARGS", "")
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version = get_version()
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_setup = partial(
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setup,
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version=version,
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author="MLX Contributors",
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author_email="mlx@group.apple.com",
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description="A framework for machine learning on Apple silicon.",
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long_description=long_description,
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long_description_content_type="text/markdown",
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license="MIT",
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url="https://github.com/ml-explore/mlx",
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include_package_data=True,
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package_dir=package_dir,
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zip_safe=False,
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python_requires=">=3.9",
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ext_modules=[CMakeExtension("mlx.core")],
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cmdclass={
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"build_ext": CMakeBuild,
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"generate_stubs": GenerateStubs,
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"bdist_wheel": MLXBdistWheel,
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},
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)
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package_data = {"mlx.core": ["*.pyi"]}
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extras = {
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"dev": [
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"nanobind==2.4.0",
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"numpy",
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"pre-commit",
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"setuptools>=80",
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"torch",
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"typing_extensions",
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],
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}
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entry_points = {
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"console_scripts": [
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"mlx.launch = mlx.distributed_run:main",
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"mlx.distributed_config = mlx.distributed_run:distributed_config",
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]
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}
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install_requires = []
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# Release builds for PyPi are in two stages.
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# Each stage should be run from a clean build:
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# python setup.py clean --all
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#
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# Stage 1:
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# - Triggered with `MLX_BUILD_STAGE=1`
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# - Include everything except backend-specific binaries (e.g. libmlx.so, mlx.metallib, etc)
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# - Wheel has Python ABI and platform tags
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# - Wheel should be built for the cross-product of python version and platforms
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# - Package name is mlx and it depends on subpackage in stage 2 (e.g. mlx-metal)
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# Stage 2:
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# - Triggered with `MLX_BUILD_STAGE=2`
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# - Includes only backend-specific binaries (e.g. libmlx.so, mlx.metallib, etc)
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# - Wheel has only platform tags
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# - Wheel should be built only for different platforms
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# - Package name is back-end specific, e.g mlx-metal
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if build_stage != 2:
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if build_stage == 1:
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install_requires.append(
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f'mlx-metal=={version}; platform_system == "Darwin"'
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)
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extras["cuda"] = [f'mlx-cuda=={version}; platform_system == "Linux"']
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extras["cpu"] = [f'mlx-cpu=={version}; platform_system == "Linux"']
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_setup(
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name="mlx",
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packages=packages,
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extras_require=extras,
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entry_points=entry_points,
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install_requires=install_requires,
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package_data=package_data,
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)
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else:
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if build_macos:
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name = "mlx-metal"
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elif build_cuda:
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name = "mlx-cuda"
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install_requires += [
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"nvidia-cublas-cu12==12.9.*",
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"nvidia-cuda-nvrtc-cu12==12.9.*",
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"nvidia-cudnn-cu12==9.*",
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]
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else:
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name = "mlx-cpu"
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_setup(
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name=name,
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packages=["mlx"],
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install_requires=install_requires,
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)
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