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Enable cuTENSOR preload support for CUDA 13.x binary packages #462

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Enable cuTENSOR preload support for CUDA 13.x binary packages #462

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6dd3ecb
Initial plan
Copilot Oct 17, 2025
2377bc8
Enable cuTENSOR preload for CUDA 13.x packages
Copilot Oct 17, 2025
e14155a
Correct aarch64 config to follow existing pattern
Copilot Oct 17, 2025
2742d2a
update for cuTENSOR 2.3 for Windows new directory structure
kmaehashi Nov 25, 2025
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4 changes: 2 additions & 2 deletions dist_config.py
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Original file line number Diff line number Diff line change
Expand Up @@ -180,7 +180,7 @@ class _WheelLinuxConfig(TypedDict):
'image': 'cupy/cupy-release-tools:cuda-runfile-13.0.0-centos7',
'libs': [],
'includes': [],
'preloads': ['nccl'], # TODO(kmaehashi): Re-add cuTENSOR
'preloads': ['cutensor', 'nccl'],
'verify_image': 'nvidia/cuda:{system}',
'verify_systems': [
# Test on all supported CUDA version variants.
Expand Down Expand Up @@ -274,7 +274,7 @@ class _WheelWindowsConfig(TypedDict):
'name': 'cupy-cuda13x',
'kind': 'cuda',
'libs': [],
'preloads': [], # TODO(kmaehashi): Re-add cuTENSOR
'preloads': ['cutensor'],
'cudart_lib': 'cudart64_13', # binary compatible between CUDA 13.x
'check_version': lambda x: 13000 <= x < 13010, # CUDA 13.0
}
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3 changes: 0 additions & 3 deletions release-tests/pkg_wheel/test_preload.py
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Expand Up @@ -34,9 +34,6 @@ def test_cutensor(self):
if cupy.cuda.runtime.runtimeGetVersion() < 10010:
# cuTENSOR is only available for CUDA 10.1+.
return
if 13000 <= cupy.cuda.runtime.runtimeGetVersion():
# TODO(kmaehashi): cuTENSOR is not yet available in CUDA 13+.
return
preload_version = self._get_config()['cutensor']['version']
major, minor, patchlevel = (int(x) for x in preload_version.split('.'))
expected_version = major * 10000 + minor * 100 + patchlevel
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