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Only print the warning message about TORCH_CUDA_ARCH_LIST if not set #1812

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Only print the warning message about TORCH_CUDA_ARCH_LIST if not set #1812

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13 changes: 8 additions & 5 deletions setup.py
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Original file line number Diff line number Diff line change
Expand Up @@ -76,12 +76,15 @@ def check_cudnn_version_and_warn(global_option: str, required_cudnn_version: int
print(
"\nWarning: Torch did not find available GPUs on this system.\n",
"If your intention is to cross-compile, this is not an error.\n"
"By default, Apex will cross-compile for Pascal (compute capabilities 6.0, 6.1, 6.2),\n"
"Volta (compute capability 7.0), Turing (compute capability 7.5),\n"
"and, if the CUDA version is >= 11.0, Ampere (compute capability 8.0).\n"
"If you wish to cross-compile for a single specific architecture,\n"
'export TORCH_CUDA_ARCH_LIST="compute capability" before running setup.py.\n',
)
if os.environ.get("TORCH_CUDA_ARCH_LIST", None) is None:
print(
"By default, Apex will cross-compile for Pascal (compute capabilities 6.0, 6.1, 6.2),\n"
"Volta (compute capability 7.0), Turing (compute capability 7.5),\n"
"and, if the CUDA version is >= 11.0, Ampere (compute capability 8.0).\n"
"If you wish to cross-compile for a single specific architecture,\n"
'export TORCH_CUDA_ARCH_LIST="compute capability" before running setup.py.\n',
)
if os.environ.get("TORCH_CUDA_ARCH_LIST", None) is None and CUDA_HOME is not None:
_, bare_metal_version = get_cuda_bare_metal_version(CUDA_HOME)
if bare_metal_version >= Version("11.8"):
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