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Parallel run diverges, serial does not

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Old   May 8, 2009, 11:50
Default Parallel run diverges, serial does not
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Samuel Braun
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Hi,
I have a case which runs fine in parallel with OpenMpi and serial without turbulence model. Unfortunately, the parallel run with turbulence model on (e.g. kE->LaunderGibsonRSTM) segfaults after few iterations.
Whereas the serial run seems to converge (still running).

Could this be a problem of the used preconditioner (p: GAMG, others: DILU)?
Could someone, please, point me to a possible solution?

Thanks and have a nice weekend.
Samuel
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Old   May 10, 2009, 04:28
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Francesco Del Citto
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Hi Samuel,
there are a few threads about similar issues. Try to have a look to these two, for example:

http://www.cfd-online.com/Forums/ope...tml#post215615

http://www.cfd-online.com/Forums/ope...llel-runs.html

Hope this helps,
Francesco
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