torchlpc/setup.py at dev · DiffAPF/torchlpc · GitHub

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import setuptools
import os
import glob
import torch
from torch.utils.cpp_extension import (
    CppExtension,
    CUDAExtension,
    BuildExtension,
    CUDA_HOME,
)

library_name = "torchlpc"


# if torch.__version__ >= "2.6.0":
#     py_limited_api = True
# else:
py_limited_api = False


def get_extensions():
    use_cuda = torch.cuda.is_available() and CUDA_HOME is not None
    use_openmp = torch.backends.openmp.is_available()
    extension = CUDAExtension if use_cuda else CppExtension

    extra_link_args = []
    extra_compile_args = {}
    if use_openmp:
        extra_compile_args["cxx"] = ["-fopenmp"]
        extra_link_args.append("-fopenmp")

    extensions_dir = os.path.join(library_name, "csrc")
    sources = list(glob.glob(os.path.join(extensions_dir, "*.cpp")))

    extensions_cuda_dir = os.path.join(extensions_dir, "cuda")
    cuda_sources = list(glob.glob(os.path.join(extensions_cuda_dir, "*.cu")))

    if use_cuda:
        sources += cuda_sources

    ext_modules = [
        extension(
            f"{library_name}._C",
            sources,
            extra_compile_args=extra_compile_args,
            extra_link_args=extra_link_args,
            py_limited_api=py_limited_api,
        )
    ]

    return ext_modules


setuptools.setup(
    ext_modules=get_extensions(),
    cmdclass={"build_ext": BuildExtension},
    options={"bdist_wheel": {"py_limited_api": "cp39"}} if py_limited_api else {},
)