[choist31]

Dear All,

While I am trying to run the parallel running (4 cpu case) from tutorial;/incompressible/icoFoam/cavityMappingTest; I have following error message. : In order to learn how to run parallel calculation, I am trying to digest the tutorial example.

Error message;
Finalising parallel run
[DESKTOP-CHOIST:01362] 3 more processes have sent help message help-btl-vader.txt / cma-permission-denied
[DESKTOP-CHOIST:01362] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages

So, I also search this error message( cma-permission-denied) in google but I can't get a clear idea what is the problem.

It would be great helpful to give me any suggestion.

Thanks in advance.

[imech]

Have you solved this problem?

[choist31]

I solved the problem based on the guidance from YouTube:

https://www.youtube.com/watch?v=uBIvhhtdHlg (this is lecture 1 out of 3)

Please master to lecture 3.
THis approach seems to be a little bit out of date but it helps a lot.

For multi-region application, please see the following example;

Allclean:

#!/bin/sh
cd "${0%/*}" || exit # Run from this directory
. ${WM_PROJECT_DIR:?}/bin/tools/CleanFunctions # Tutorial clean functions
#------------------------------------------------------------------------------

cleanCase0

rm -rf constant/polyMesh
rm -rf constant/*/polyMesh # region meshes

#------------------------------------------------------------------------------

Allrun-parallel:

#!/bin/sh
cd "${0%/*}" || exit # Run from this directory
. ${WM_PROJECT_DIR:?}/bin/tools/RunFunctions # Tutorial run functions
#------------------------------------------------------------------------------
# For meshing only
#decompDict="-decomposeParDict system/decomposeParDict.6" # comment out

runApplication blockMesh
runApplication topoSet

# Set initial fields
restore0Dir

runApplication splitMeshRegions -cellZones -overwrite


cd system/water
rm decomposeParDict
ln -s ../decomposeParDict .
cd ../solid
rm decomposeParDict
ln -s ../decomposeParDict .
cd ../solid2
rm decomposeParDict
ln -s ../decomposeParDict .
cd ../..

runApplication decomposePar -allRegions

#-- Run in parallel
runParallel $(getApplication)


#------------------------------------------------------------------------------
Note that I modeled two heater rods (solid; solid2) and you have to use -allRegion utility when you use decomposePar and reconstructPar

I learn this method from OpenFOAM consultant.

[CFDTeufel]

Thanks choist31, that helped me.

[madhavg268]

Hey,

I referred the tutorial but I could not find any information that is of use. What did you exactly do to get it to run?
Thanks