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porousSimpleFoam crash on 40 cores

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Old   February 26, 2012, 14:56
Default porousSimpleFoam crash on 40 cores
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Marco
Join Date: Feb 2012
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Hi,
I'm running a simulation with porousSimpleFoam.
The simulation executed on 7 cores converges after 1295 iterations, but if I try to run the same simulation on 40 cores it diverges after 96 iterations.

Is there any mathematical reason for this?
If yes, there is a way to calculate the max number of cores that can be used?

Thanks to all.
Marco
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