ENH: Make FPE blas check a runtime check for all apple arm systems#30237
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charris merged 7 commits intonumpy:maintenance/2.3.xfrom Nov 16, 2025
Merged
ENH: Make FPE blas check a runtime check for all apple arm systems#30237charris merged 7 commits intonumpy:maintenance/2.3.xfrom
charris merged 7 commits intonumpy:maintenance/2.3.xfrom
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If an arm system uses SME some BLAS versions just set FPEs spuriously. The culprit is really Accelerate so we might limit this to Mac OS as well (and then with an SME check also -- see changes prior to this commit). However, some OpenBLAS versions also caused this, although OpenBLAS is likely to clear the FPEs on their side. Closes numpygh-29820
Co-authored-by: Matti Picus <matti.picus@gmail.com>
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Backport of #30102.
If an arm system uses SME some BLAS versions just set FPEs spuriously. The culprit is really Accelerate so we might limit this to Mac OS as well (and then with an SME check also -- see changes prior to this commit).
However, some OpenBLAS versions also caused this, although OpenBLAS is likely to clear the FPEs on their side.
Closes #29820