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add env cuda arch #78704

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Merged
swgu98 merged 2 commits into from
Apr 18, 2026
Merged

add env cuda arch #78704

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b50c2a1
add env cuda arch
swgu98 Apr 17, 2026
6daa125
fix unitest
swgu98 Apr 17, 2026
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7 changes: 0 additions & 7 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 @@ -429,13 +429,6 @@ def _get_cuda_arch_flags(cflags: list[str] | None = None) -> list[str]:
For an added "+PTX", an additional
``-gencode=arch=compute_xx,code=compute_xx`` is added.
"""
# If cflags is given, there may already be user-provided arch flags in it
if cflags is not None:
for flag in cflags:
if any(x in flag for x in ['PADDLE_EXTENSION_NAME']):
continue
if 'arch' in flag:
return []

named_arches = collections.OrderedDict(
[
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6 changes: 1 addition & 5 deletions test/compat/test_cpp_extension_api.py
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Expand Up @@ -37,7 +37,7 @@ def tearDown(self):

def test_with_user_cflags(self):
flags = _get_cuda_arch_flags(cflags=["-arch=sm_90"])
self.assertEqual(flags, [])
self.assertIsInstance(flags, list)

def test_with_env_hopper(self):
os.environ["PADDLE_CUDA_ARCH_LIST"] = "Hopper"
Expand Down Expand Up @@ -87,10 +87,6 @@ def test_get_cuda_arch_flags_with_invalid_arch(self):
str(context.exception),
)

def test_skip_paddle_extension_name_flag(self):
flags = _get_cuda_arch_flags(cflags=["-DPADDLE_EXTENSION_NAME=my_ext"])
self.assertNotEqual(flags, [])


class TestCppExtensionUtils(unittest.TestCase):
def test_cuda_home(self):
Expand Down