CFD Online Discussion Forums - [Other] Different decomposition for SHM & PimpleFoam?

Hi to all,

I am trying to run a case in parallel. My problem is that I want to refine the mesh with SHM. Depending that I read that the scotch method should be avoided because of possible trouble in that combination.

But the scotch method is that one which is obviously the fastest to get the calculation results.

Is there a way to decompose first for SHM and after that to decompose again with the scotch method?

I tried various attempts like this in my Allrun-script but without success:

Code:

#!/bin/sh

cd ${0%/*} || exit 1    # Run from this directory



# Source tutorial run functions

. $WM_PROJECT_DIR/bin/tools/RunFunctions



rm log.*

rm -rf ./processor*



application="$(getApplication)"



runApplication blockMesh



rm ./system/decomposeParDict



cp ./system/_decomposeParDict_SHM ./system/decomposeParDict

runApplication decomposePar -copyZero -force

runParallel snappyHexMesh -overwrite

runApplication foamListTimes -rm

rm ./system/decomposeParDict

mv log.decomposePar log.decomposePar_SHM



runApplication reconstructParMesh -constant



runApplication extrudeMesh

runApplication transformPoints "translate=(0 -0.02 0)"



runApplication renumberMesh



cp ./system/_decomposeParDict_Pimple ./system/decomposeParDict

runApplication decomposePar -force 

rm ./system/decomposeParDict

mv log.decomposePar log.decomposePar_Pimple



runParallel $application



runApplication reconstructPar

Does anybody have experience with that?

Best regards,
Michael