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Parallel job run on multiple nodes - OpenFOAM

Hello Foamers,

I am trying to run the OpenFOAM jobs on multiple nodes. However, encountering some difficulties to do so. Here is my job script.

\\ script starts \\

#!/bin/bash
#PBS -q small
#PBS -l select=2:ncpus=40:vntype=cray_compute
#PBS -l place=scatter
#PBS -N refined_mach8_1
#PBS -j oe
cd $PBS_O_WORKDIR

blockMesh
topoSet
splitMeshRegions -cellZones -defaultRegionName fluid -overwrite
decomposePar -allRegions -dict system/decomposeParDict
mpirun -np 80 -oversubscribe chtMultiRegionFoam -parallel
reconstructPar -allRegions

\\ script ends\\

The issue is the cluster is acquiring two complete nodes, however, running the job only on one node. If anybody could provide valuable input, it would be conducive.


OpenFOAM 15-06-22, 3:04 p.m. AMit_gM
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You should use the "regular" node type instead of "small" if you want to use more than one node.

Regards,
Divyesh Variya
CFD Team, FOSSEE
16-06-22, 11:03 a.m. divyesh


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Thanks for the reply. I changed the queue type later; however, the problem persisted.
16-06-22, 11:24 a.m. AMit_gM

#PBS -q regular
#PBS -l select=2:ncpus=80:vntype=cray_compute


17-06-22, 11:53 a.m. divyesh

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