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#1 |
New Member
Pere
Join Date: Mar 2022
Location: Mallorca
Posts: 16
Rep Power: 4 ![]() |
Dear foamers,
I am currently struggling to run a parallel simulation (with OpenFOAM v2012) on a cluster (Cent OS 7.9.2009). I rely on the openmpi versions already installed on the cluster. Until now, I ran the simulations using a version called ‘mpi/openmpi-x86_64’. However, only ‘mpi/openmpi-4.1.2’ is allowed for multi-node simulations (which is something I need for nProcessors > 48). When I changed to this other version, the simulation produced an empty log file (and I had to stop the job manually). In the bashrc file, I have Code:
WM_MPLIB=SYSTEMOPENMPI Code:
module load mpi/openmpi-4.1.2 source $HOME/OpenFOAM/OpenFOAM-v2012/etc/bashrc export PBS_O_WORKDIR=$(readlink -f $PBS_O_WORKDIR) cd $PBS_O_WORKDIR # Host name cat $PBS_NODEFILE ( for host in `cat $PBS_NODEFILE | sort -u -V` do count=`grep $host $PBS_NODEFILE | wc -l` echo $host cpu=$count done ) > host_file cat host_file ######## Start the solver ############### # Source tutorial run functions . $WM_PROJECT_DIR/bin/tools/RunFunctions # Set solver name solver="mpirun -np $PBS_NP --hostfile host_file pimpleFoam -parallel" # Run the solver runApplication $solver mv log.mpirun log.pimpleFoam |
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Tags |
mpi, parallel, pbs, version |
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