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Opened 7 years ago

Last modified 7 years ago

#630 new defect

Some processor number combinations don't work on Kraken

Reported by: Ian Hinder Owned by: Erik Schnetter
Priority: minor Milestone:
Component: SimFactory Version:
Keywords: Cc:

Description

Submitting on Kraken with;

sim --remote kraken create-submit maxwell_1proc --testsuite --procs 6 --num-threads 6 --walltime 4:00:00

leads to an error from aprun along the lines of -n cannot exceed -N (sorry, I deleted the error message). The idea was to get one MPI process with 6 threads. This same simfactory submission command works on Datura. The workaround is to use additionally --ppn-used=6. Is there some documentation for what each of these command line options precisely does?

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Change History (2)

comment:1 Changed 7 years ago by Erik Schnetter

Simfactory outputs how many nodes, processes, threads etc. it requests. Look for "Job allocation information" in the output. What did it say?

comment:2 Changed 7 years ago by Ian Hinder

Erik wrote documentation for each of these concepts. It's now in the user guide. See doc/userguide/processterminology.rst or http://damiana2.aei.mpg.de/~ianhin/simfactoryuserguide/processterminology.html.

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