c++ 如何将torch路径添加到Pybind11扩展？

xyhw6mcr 于 2023-06-25 发布在其他

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我正在用C++编写一个python扩展，使用pybind11，我正在尝试创建setup.py文件，这是我目前为止所做的：

from glob import glob
import setuptools
from pybind11.setup_helpers import Pybind11Extension, build_ext
ext_modules = [
    Pybind11Extension(
        "my_ext",
        sorted(glob("src/my_ext/**/*.cc")),
    )
]
setuptools.setup(
    name="my_ext",
    version="0.1",
    package_dir={"": "src/my_ext/python/"},
    cmdclass={"build_ext": build_ext},
    ext_modules=ext_modules,
)

但是，当我运行pip install .时，我得到了这个错误：

In file included from src/my_ext/cc/thing.cc:7:
      src/my_ext/cc/thing.h:9:10: fatal error: 'torch/torch.h' file not found
      #include <torch/torch.h>
               ^~~~~~~~~~~~~~~
      1 error generated.
      error: command '/usr/bin/clang' failed with exit code 1

有没有什么参数可以传递给Pybind11Extension，让它找到torch并成功构建？

c++

来源：https://stackoverflow.com/questions/76499079/how-can-i-add-the-path-to-torch-to-a-pybind11-extension

1条答案

按热度按时间

dwthyt8l1#

我自己想出来的。只需要使用一些pytorch的helper函数，并查看torch.utils.cpp_extension.CppExtension以获得指导：

import os
from glob import glob
import setuptools
from pybind11.setup_helpers import Pybind11Extension, build_ext
from torch.utils.cpp_extension import include_paths, library_paths
include_dirs = include_paths()
torch_library_paths = library_paths()
libraries = ["c10", "torch", "torch_cpu", "torch_python"]
ext_modules = [
    Pybind11Extension(
        "my_ext",
        sorted(glob("src/my_ext/**/*.cc")),
        include_dirs=include_dirs,
        libraries=libraries,
        library_dirs=torch_library_paths,
    )
]
setuptools.setup(
    name="my_ext",
    version="0.1",
    cmdclass={"build_ext": build_ext},
    ext_modules=ext_modules,
)

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c++ 如何将torch路径添加到Pybind11扩展？

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