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from torch.utils import cpp_extension |
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import pathlib |
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import os |
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import subprocess |
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def _get_cuda_bare_metal_version(cuda_dir): |
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raw_output = subprocess.check_output([cuda_dir + "/bin/nvcc", "-V"], |
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universal_newlines=True) |
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output = raw_output.split() |
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release_idx = output.index("release") + 1 |
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release = output[release_idx].split(".") |
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bare_metal_major = release[0] |
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bare_metal_minor = release[1][0] |
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return raw_output, bare_metal_major, bare_metal_minor |
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def _create_build_dir(buildpath): |
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try: |
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os.mkdir(buildpath) |
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except OSError: |
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if not os.path.isdir(buildpath): |
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print(f"Creation of the build directory {buildpath} failed") |
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cc_flag = [] |
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_, bare_metal_major, bare_metal_minor = _get_cuda_bare_metal_version(cpp_extension.CUDA_HOME) |
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if int(bare_metal_major) >= 11: |
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cc_flag.append('-gencode') |
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cc_flag.append('arch=compute_80,code=sm_80') |
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if int(bare_metal_minor) >= 7: |
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cc_flag.append('-gencode') |
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cc_flag.append('arch=compute_90,code=sm_90') |
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srcpath = pathlib.Path(__file__).parent.absolute() |
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buildpath = srcpath / 'build' |
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_create_build_dir(buildpath) |
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def _cpp_extention_load_helper(name, sources, extra_cuda_flags): |
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return cpp_extension.load( |
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name=name, |
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sources=sources, |
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build_directory=buildpath, |
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extra_cflags=['-O3', ], |
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extra_cuda_cflags=['-O3', |
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'-gencode', 'arch=compute_70,code=sm_70', |
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'--use_fast_math'] + extra_cuda_flags + cc_flag, |
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verbose=1 |
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) |
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extra_flags = [] |
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cache_autogptq_cuda_256_sources = ["./cache_autogptq_cuda_256.cpp", |
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"./cache_autogptq_cuda_kernel_256.cu"] |
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cache_autogptq_cuda_256 = _cpp_extention_load_helper("cache_autogptq_cuda_256", cache_autogptq_cuda_256_sources, extra_flags) |
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