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BLD: use scipy-openblas 0.3.30.7#30132

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mattip:openblas-0.3.30.0.7
Nov 4, 2025
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BLD: use scipy-openblas 0.3.30.7#30132
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mattip:openblas-0.3.30.0.7

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@mattip mattip commented Nov 3, 2025

Fixes #30092.

Rather than update the OpenBLAS version, this PR uses a patched version of OpenBLAS that incorporate the fix from OpenMathLib/OpenBLAS#5520. That should minimize the risk in updating the dependency so close to the new release cut-off date.

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mattip commented Nov 3, 2025 •
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@FreddieWitherden could you try this out on your system?

Edit: it should be enough to update scipy-openblas64 on the reproducer from #30092, since that seems to be a local build and not a PyPI install.

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FreddieWitherden commented Nov 3, 2025

@FreddieWitherden could you try this out on your system?

Edit: it should be enough to update scipy-openblas64 on the reproducer from #30092, since that seems to be a local build and not a PyPI install.

Will action this evening and get back to you.

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charris commented Nov 3, 2025

Note that this will also be needed in the numpy-release repo which currently uses 0.3.30.0.2. The maintenance branch also builds onn macos-13, which I think should be good through Dec.

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andyfaff commented Nov 3, 2025

I think the macos-13 limit is fully retired by Dec 4th.

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FreddieWitherden commented Nov 3, 2025

@FreddieWitherden could you try this out on your system?

Edit: it should be enough to update scipy-openblas64 on the reproducer from #30092, since that seems to be a local build and not a PyPI install.

I can confirm this resolves the deadlock issue.

Regards, Freddie.

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mattip commented Nov 4, 2025

Note that this will also be needed in the numpy-release repo

I opened numpy/numpy-release#21 to simplify that.

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Thanks @mattip and @FreddieWitherden!

@rgommers rgommers merged commit 0fdb197 into numpy:main Nov 4, 2025
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@rgommers rgommers added this to the 2.4.0 release milestone Nov 4, 2025
charris pushed a commit to charris/numpy that referenced this pull request Nov 5, 2025
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BLD: use scipy-openblas 0.3.30.7 (numpy#30132)
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@charris charris removed the 09 - Backport-Candidate PRs tagged should be backported label Nov 5, 2025
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Merge pull request #30157 from charris/backport-20132
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BLD: use scipy-openblas 0.3.30.7 (#30132)
cakedev0 pushed a commit to cakedev0/numpy that referenced this pull request Dec 5, 2025
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BLD: use scipy-openblas 0.3.30.7 (numpy#30132)
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BLD: use scipy-openblas 0.3.30.7 (numpy#30132)
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BUG: Binary Builds Deadlock due to OpenBLAS threading issue with fork

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