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Introduction
OpenFOAM is a framework for developing application executables that use packaged functionality contained within a collection of approximately 100 C+ libraries. OpenFOAM is shipped with approximately 250 pre-built applications that fall into two categories: solvers, that are each designed to solve a specific problem in fluid (or continuum) mechanics; and utilities, that are designed to perform tasks that involve data manipulation.
Source: https://cfd.direct/openfoam/user-guide/
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Singularity is installed on the nodes but if needed latest version of singularity can be loaded with
module load singularity
The container with openfoam6-paraview54 can be located in: /sw/OpenFoam/Containers/openfoam6-paraview54_latest.sif
We use singularity shell to start a container, and run a shell in the container.
The -B option is used to “bind” the /scratch/$USER directory to a directory named /scratch in the container.
We also the --pwd option to specify the working directory in the running container (in this case /scratch). This is always recommended.
singularity shell -B /scratch/s123456:/scratch --pwd /scratch /sw/OpenFoam/Containers/openfoam6-paraview54_latest.sif
Using it with PBS:
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#!/bin/bash -l
#PBS -m abe
#PBS -M YourEmail@griffith.edu.au
#PBS -V
#PBS -N TestOPENFOAM
#PBS -q workq
#PBS -l select=1:ncpus=1:ngpus=1:mem=32gb,walltime=30:00:00
cd $PBS_O_WORKDIR
module load singularity/3.2.0
singularity shell -B /scratch/s2594054:/scratch --pwd /scratch /sw/OpenFoam/Containers/openfoam6-paraview54_latest.sif
cat /etc/os-release
exit
sleep 2
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