Rather than keeping the number of threads MKL uses to 1, it is better to use MKL_THREADING_LAYER=SEQUENTIAL
https://software.intel.com/en-us/node/528380 --Sasha From: NumPy-Discussion [mailto:numpy-discussion-bounces+oleksandr.pavlyk=intel....@python.org] On Behalf Of Neal Becker Sent: Friday, March 24, 2017 6:31 AM To: numpy-discussion@python.org Subject: [Numpy-discussion] Set #threads from within python code I don't want my python code to run multi-thread. So I can do: MKL_NUM_THREAD=1 NUMEXPR_NUM_THREADS=1 OMP_NUM_THREADS=1 my_program... But I don't seem to be able to achieve this effect without setting env variables on the command line; within my_program. Using os.environ doesn't work. I don't understand why. I'd like to not have to put this on the command line because I sometimes forget.
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