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Long geometry preprocessing time for a large amount of cpus

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Old   October 30, 2023, 08:01
Default Long geometry preprocessing time for a large amount of cpus
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Hello,
I am trying to run a simulation of 70M cells, and for that reason I need to use at least 128 cores (16 cores per cpu) on my server to get reasonable time per iteration.
The problem is, when I try to use that many cores the geometry preprocessing takes a very long time (3 hours at least..).
Is it possible to run only the geometry preprocessing on a smaller number of cores (so it finishes more quickly) and then load the partitioned mesh to the solver later?
Thank you
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Old   October 30, 2023, 11:14
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That doesn't sound right. Can you tell a bit more about the case? Which part of the preprocessing takes so much time?
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