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[CUDAExtension] Support dlink and dlink_libraries args for compatibility #76748

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[CUDAExtension] Support dlink and dlink_libraries args for compatibility #76748

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21 changes: 21 additions & 0 deletions python/paddle/utils/cpp_extension/extension_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,8 @@
import warnings
from importlib import machinery

import paddle

try:
from subprocess import DEVNULL # py3
except ImportError:
Expand Down Expand Up @@ -628,6 +630,25 @@ def normalize_extension_kwargs(kwargs, use_cuda=False):
extra_compile_args = copy.deepcopy(extra_compile_args)
extra_compile_args["nvcc"] = nvcc_options

dlink_libraries = kwargs.get('dlink_libraries', [])
dlink = kwargs.get('dlink', False) or dlink_libraries
if dlink:
extra_compile_args = kwargs.get('extra_compile_args', {})

extra_compile_args_dlink = extra_compile_args.get('nvcc_dlink', [])
extra_compile_args_dlink += ['-dlink']
extra_compile_args_dlink += [f'-L{x}' for x in library_dirs]
extra_compile_args_dlink += [f'-l{x}' for x in dlink_libraries]
if (
paddle.version.cuda() != "False"
and float(paddle.version.cuda()) >= 11.2
):
extra_compile_args_dlink += [
'-dlto'
] # Device Link Time Optimization started from cuda 11.2

extra_compile_args['nvcc_dlink'] = extra_compile_args_dlink

kwargs['extra_compile_args'] = extra_compile_args

kwargs['language'] = 'c++'
Expand Down
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