OpenFOAM

OpenFOAM is an open-source software for CFD.

Useful links

• OpenFOAM user documentation

Licensing

OpenFOAM is open source (see the OpenFOAM License Agreement).

Version

The following versions of OpenFOAM are currently available:

• v1906 (ESI-OpenCFD)

• v1812 (ESI-OpenCFD)

• 7 (OpenFOAM Foundation)

Running

Example Job Submission Script

Arm

#!/bin/bash

#PBS -N openfoam_job

# Select 1 nodes (maximum of 64 cores)
#PBS -l select=1:ncpus=64

# Select wall time to 10 minutes
#PBS -l walltime=0:10:0

# Use the arm nodes
#PBS -q arm

# Load modules for currently recommended OpenFOAM v1812 build
module swap PrgEnv-cray PrgEnv-allinea

# Change to directory that script was submitted from
export PBS_O_WORKDIR=$(readlink -f $PBS_O_WORKDIR)
export OMP_NUM_THREADS=1
cd $PBS_O_WORKDIR

# Load the environment variables for OpenFOAM v1812 build
export OPENFOAM_DIR=/lustre/software/aarch64/apps/openfoam/v1812/OpenFOAM-v1812
export PATH=$PATH:$OPENFOAM_DIR/bin/
source $OPENFOAM_DIR/etc/bashrc

# Launch OpenFoam solvers
# aprun -n 64 ..

Building

Example Build with waves2Foam

Arm

Patch for waves2Foam waves2Foam-cray.patch.

Patch for OpenFOAM v2012 openfoam-v2012-cray.patch.

#!/bin/bash
module swap PrgEnv-cray PrgEnv-gnu
mkdir ~/openfoam_build && cd ~/openfoam_build

wget "https://dl.openfoam.com/source/v2012/OpenFOAM-v2012.tgz"
tar zxvf OpenFOAM-v2012.tgz
cd OpenFOAM-v2012
wget https://raw.githubusercontent.com/gw4-isambard/docs/master/applications/openfoam/openfoam-v2012-cray.patch
patch -p0 < openfoam-v2012-cray.patch
cat > etc/prefs.sh <<EOF
export WM_COMPILER=Cray
export WM_MPLIB=CRAY-MPICH
EOF
. etc/bashrc
./Allwmake -s -j 8 -l

cd ~/openfoam_build
wget https://ftp.gnu.org/gnu/gsl/
tar zxvf gsl-latest.tar.gz
cd gsl-*/
./configure --prefix=$HOME/gsl CC=cc
make
make install

mkdir -p $FOAM_RUN/../applications/utilities
cd $FOAM_RUN/../applications/utilities
svn co http://svn.code.sf.net/p/openfoam-extend/svn/trunk/Breeder_1.6/other/waves2Foam
cd waves2Foam
wget https://raw.githubusercontent.com/gw4-isambard/docs/master/applications/openfoam/waves2Foam-cray.patch
patch -p0 < waves2Foam-cray.patch
cp bin/bashrc.org bin/bashrc
chmod a+x ./bin/bashrc
sed -i 's|WAVES_GSL_INCLUDE=.*|WAVES_GSL_INCLUDE=$HOME/gsl/include|' bin/bashrc
sed -i 's|WAVES_GSL_LIB=.*|WAVES_GSL_LIB=$HOME/gsl/lib|' bin/bashrc
./Allwmake

This should now be built.