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Hello! I new user in Code_Aster. I have a simple question. How can I change the number of processors involved in the calculation?
In Salome_Meca, I cannot change that.
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Hello,
the number of MPI-processes may only be set in the MPI-version of Code_Aster. Either you compile it yourself or you may also use a docker of the MPI-version. More details on the docker-version are described in post (remove space, not allowed to post links):
h ttps://www.code-aster.org/forum2/viewtopic.php?id=23453
In the sequential version, you may set the number of OpenMP-processes ('Number of threads' in SM), on a single CPU-system I recommend you set it to number_of_cores/2 (and also turn HT off),
Mario.
Last edited by mf (2021-02-25 16:33:36)
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Thank you very much, Mario! I will deal with the information.
I also heard that you can turn on the number of cores through the ASTK module. Does this also work?
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Yes, of course. The variable names are the same as in CA, they are in the 'options'-menu. Ultimately, ASTK creates the .export file with these variables in it:
ncpus .... number of OpenMP-processes
mpi_ncpu... number of MPI-processes
There is much more to it, though: h ttps://www.code-aster.org/V2/doc/default/en/man_u/u2/u2.08.06.pdf
Mario.
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Very nice. I will continue to understand the topic. Thanks again, Mario, for your links!
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