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[snappyHexMesh] How to run snappyHexMesh in parallel? |
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January 16, 2011, 10:31 |
How to run snappyHexMesh in parallel?
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#1 |
Senior Member
Klaus
Join Date: Mar 2009
Posts: 281
Rep Power: 22 |
Hello,
I read that it's possible to run snappyHexMesh in parallel but I couldn't find an explanation how to do it. I am planning to analyze different configurations so I'd like to speedup the meshing process. My testcase is motorBike. What needs to be changed in the Allrun file: #!/bin/sh # Source tutorial run functions . $WM_PROJECT_DIR/bin/tools/RunFunctions cp system/fvSolution.org system/fvSolution cp -r 0.org 0 > /dev/null 2>&1 runApplication blockMesh runApplication snappyHexMesh -overwrite sed -i 's/\(nNonOrthogonalCorrectors\).*;/\1 10;/g' system/fvSolution runApplication potentialFoam -writep sed -i 's/\(nNonOrthogonalCorrectors\).*;/\1 0;/g' system/fvSolution runApplication simpleFoam Klaus |
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January 17, 2011, 04:09 |
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#2 |
Senior Member
stephane sanchi
Join Date: Mar 2009
Posts: 314
Rep Power: 18 |
Hi Klaus,
How to run snappyHexMesh in parallel: - decomposeMethod in decomposeParDict must be hierarchical ! - run "decomposePar" - run "mpirun -np 8 -parallel snappyHexMesh" - afterwards run "reconstructParMesh -mergeTol 1e-06 -latestTime" Hope it can help you, Stephane |
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August 4, 2022, 05:51 |
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#3 | |
New Member
MD KAWSAR SAJIB
Join Date: Jul 2022
Posts: 7
Rep Power: 4 |
Quote:
Thank you for sharing the commands. I did it with the scotch method in decmposeParDict. Also, the command for snappyHexMesh is "mpirun -np 8 snappyHexMesh -parallel" Regards |
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