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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