[Numpy-discussion] Numpy wheels, openBLAS and threading

[Jean-Christophe Houde]

Hi all,

not sure if this is the best place to ask for this. If not, please advise
on the correct place.

Since the numpy wheels internally use openBLAS, operations can be
implicitly multithreaded directly by openBLAS.

This, of course, can clash with multithreading or parallel processing. The
recommended practice in this case is to set

export OPENBLAS_NUM_THREADS=1

in the environment. However, I would like to be able to adjust this
directly in my python code.

Is there a way to control this directly through Python, whether through
numpy or not?

Thanks for your time!

--
Jean-Christophe Houde
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/numpy-discussion/attachments/20170928/21b5bf9e/attachment.html>