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build: enable free-threading compatibility#1103

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cpcloud:cython-ft
Oct 8, 2025
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build: enable free-threading compatibility#1103
leofang merged 3 commits into
NVIDIA:mainfrom
cpcloud:cython-ft

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@cpcloud

@cpcloud cpcloud commented Oct 8, 2025

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Enable freethreading_compatibility for cuda-python extension modules

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@cpcloud

cpcloud commented Oct 8, 2025

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/ok to test

@cpcloud cpcloud requested a review from leofang October 8, 2025 13:25
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🚀 View preview at
https://nvidia.github.io/cuda-python/pr-preview/pr-1103/

https://nvidia.github.io/cuda-python/pr-preview/pr-1103/cuda-core/

https://nvidia.github.io/cuda-python/pr-preview/pr-1103/cuda-bindings/

https://nvidia.github.io/cuda-python/pr-preview/pr-1103/cuda-pathfinder/


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@cpcloud cpcloud requested a review from kkraus14 October 8, 2025 14:43
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leofang approved these changes Oct 8, 2025
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Comment thread cuda_bindings/setup.py
@leofang leofang added bug Something isn't working P0 High priority - Must do! cuda.bindings Everything related to the cuda.bindings module cuda.core Everything related to the cuda.core module labels Oct 8, 2025
@leofang leofang added this to the cuda.core beta 7 milestone Oct 8, 2025
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It looks like when we build Cython tests, we also have to pass the new flag, e.g.:
https://github.com/NVIDIA/cuda-python/actions/runs/18346151043/job/52261604753?pr=1103#step:26:340

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cpcloud commented Oct 8, 2025

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Gah, what is going on with system dependency installation?

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cpcloud commented Oct 8, 2025

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Also, I will do a follow up to turn on warnings as errors in pytest.

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leofang commented Oct 8, 2025

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Gah, what is going on with system dependency installation?

no idea, asking in the runner channel internally

@cpcloud cpcloud requested a review from leofang October 8, 2025 15:29
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there is also cuda_core/tests/cython/build_tests.sh

@cpcloud

cpcloud commented Oct 8, 2025

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I also handled build_tests.bat. I think this is ready to go now.

@leofang

leofang commented Oct 8, 2025

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Good catch!

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leofang commented Oct 8, 2025

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/ok to test 47c13be

@leofang

leofang commented Oct 8, 2025

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I'll check the CI log later and see if the warning is gone.

Also, I will do a follow up to turn on warnings as errors in pytest.

It might be a good idea. Though I am not sure how much work it is. For this particular case, it might be a good idea to also add a naive test like this
https://github.com/numpy/numpy/blob/128d684bdc8d756c63341baab0fd7e4df3fbc09c/tools/wheels/cibw_test_command.sh#L22-L25

@leofang

leofang commented Oct 8, 2025

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btw @cpcloud we'll need to backport the cuda-bindings changes...

@leofang

leofang commented Oct 8, 2025

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I'll check the CI log later and see if the warning is gone.

Looks like they are gone now. I will enable auto-merge.

@leofang leofang enabled auto-merge (squash) October 8, 2025 17:00
@leofang leofang merged commit bd42838 into NVIDIA:main Oct 8, 2025
137 of 139 checks passed
@cpcloud cpcloud deleted the cython-ft branch October 8, 2025 17:27
github-actions Bot pushed a commit that referenced this pull request Nov 10, 2025
Clean up PR preview folders for 61 closed/merged PRs
6fc9084 
Removed preview folders for the following PRs:
- PR #1021
- PR #1034
- PR #1052
- PR #1059
- PR #1069
- PR #1086
- PR #1090
- PR #1096
- PR #1102
- PR #1103
- PR #1106
- PR #1107
- PR #1117
- PR #1133
- PR #1140
- PR #1166
- PR #1174
- PR #1185
- PR #1188
- PR #1191
... and 41 more
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@kkraus14 kkraus14 kkraus14 approved these changes

@leofang leofang leofang approved these changes

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bug Something isn't working cuda.bindings Everything related to the cuda.bindings module cuda.core Everything related to the cuda.core module P0 High priority - Must do!

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