[slurm-users] Automatically setting OMP_NUM_THREADS=SLURM_CPUS_PER_TASK?

[Ryan Novosielski]

Thanks, Martin — I almost mentioned Utah in my original e-mail as I turned up your support page in a search.

It is good to know definitively that MKL honors that variable — would be preferable to having to know about various different ones.

> On Mar 6, 2018, at 6:07 PM, Martin Cuma <martin.cuma at utah.edu> wrote:
> 
> Ryan,
> 
> we set OMP_NUM_THREADS=1 in the R and Python modules (MKL will honor that), and instruct those users that want to run multi-threaded to set OMP_NUM_THREADS themselves after loading the module - and make sure they don't oversubscribe the node.
> 
> In our experience majority of R and Python users run independent serial calculations so the default OMP_NUM_THREADS=1 is reasonable.

--
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||_// the State	 |         Ryan Novosielski - novosirj at rutgers.edu
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||  \\    of NJ	 | Office of Advanced Research Computing - MSB C630, Newark
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