|
[Sponsors] |
May 8, 2009, 11:50 |
Parallel run diverges, serial does not
|
#1 |
New Member
Samuel Braun
Join Date: Mar 2009
Posts: 1
Rep Power: 0 |
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 |
|
May 10, 2009, 04:28 |
|
#2 |
Senior Member
Francesco Del Citto
Join Date: Mar 2009
Location: Zürich Area, Switzerland
Posts: 237
Rep Power: 18 |
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 |
|
Tags |
diverge, mpirun, parallel, serial, turbulence |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Poisson eq w setReference works serial diverges in parallel | tehache | OpenFOAM Running, Solving & CFD | 5 | August 29, 2012 10:41 |
Script to Run Parallel Jobs in Rocks Cluster | asaha | OpenFOAM Running, Solving & CFD | 12 | July 4, 2012 23:51 |
Working directory via command line | Luiz | CFX | 4 | March 6, 2011 21:02 |
Differences between serial and parallel runs | carsten | OpenFOAM Bugs | 11 | September 12, 2008 12:16 |
Serial run OK parallel one fails | r2d2 | OpenFOAM Running, Solving & CFD | 2 | November 16, 2005 13:44 |