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An an object-oriented Computational Fluid Dynamics(CFD) open source CFD toolkit |
Description
OpenFOAM core is an extensible Computational Fluid Dynamics framework written in C++, i.e. it provides an abstraction for a programmer to build their own code for an underlying mathematical model.
Prerequisites
OpenFOAM is a free, open source software which is released under the GNU-GPL license
Modules
The following versions of OpenFOAM are installed in HLRN system
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Berlin, Goettingen
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Modules
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module avail openfoam |
Example Jobscripts
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#!/bin/bash
#SBATCH --time 1:00:00
#SBATCH --nodes 1
#SBATCH --tasks-per-node 96
#SBATCH -p standard96:test
#SBATCH --job-name=test_job
#SBATCH --output=ol-%x.%j.out
#SBATCH --error=ol-%x.%j.err
export I_MPI_FALLBACK=0
export I_MPI_DEBUG=6
export I_MPI_FABRICS=shm:ofi
export I_MPI_OFI_PROVIDER=psm2
export I_MPI_PMI_LIBRARY=libpmi.so
module load gcc/9.2.0
module load openmpi/gcc.9/3.1.5
module load openfoam/gcc.9/5
# initialize OpenFOAM environment
#---------------------
source $WM_PROJECT_DIR/etc/bashrc
source ${WM_PROJECT_DIR:?}/bin/tools/RunFunctions # provides fcts like runApplication
# set working directory
#---------------------
WORKDIR="$(pwd)"
# get and open example
#---------------------
cp -r $WM_PROJECT_DIR/tutorials/incompressible/icoFoam/cavity $WORKDIR/
cd cavity
# run script with several cases
#------------------------------
./Allrun
# run single case
#--------------------------
#cd cavity
#runApplication blockMesh
#icoFoam > icoFoam.log 2>&1 |
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If you can not use our local 2TB-SSDs (see Special Filesystems) #SBATCH --partition={standard,large,huge}96:ssd at $LOCAL_TMPDIR please refer to our general advices to reduce Metadata Usage on WORK (=Lustre).
To adapt/optimize your OpenFOAM job specifically for I/O operations on $WORK (=Lustre) we strongly recommend the following steps:
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