FS#66199 - [openblas] Deadlock in python (numpy+multiprocessing)

Attached to Project: Community Packages
Opened by Martin Diehl (MartinDiehl) - Friday, 10 April 2020, 10:43 GMT
Last edited by Toolybird (Toolybird) - Monday, 17 April 2023, 22:12 GMT
Task Type Bug Report
Category Packages
Status Closed
Assigned To Felix Yan (felixonmars)
Architecture x86_64
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 1
Private No

Details

When using numpy in parallel via the multiprocessing package, I get an deadlock for linalg.eigh while linalg.eivalsh works

My setup is

python 3.8.2
numpy 1.18.2
openblas 3.8.0


the standard blas library works.
This task depends upon

Closed by  Toolybird (Toolybird)
Monday, 17 April 2023, 22:12 GMT
Reason for closing:  None
Additional comments about closing:  Reporter says "I cannot reproduce this anymore. The error still occurs with openblas-lapack from AUR, maybe I have mixed up the packages."
Comment by Toolybird (Toolybird) - Sunday, 16 April 2023, 07:25 GMT
Still happening with latest pkgs? If yes, please provide "Steps to reproduce:" which is a standard requirement for every ticket and is missing here.

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