OpenFOAM (with ParaView)

This uses Singularity containers, so you should refer to that page first for general information.

OpenFOAM and ParaView have been installed from the Ubuntu 16.04 Docker image provided by OpenFOAM people. It has minimal amount of other software installed.

Parallelization is done against Triton’s OpenMPI, so using this container with other OpenMPI modules is discouraged.

New image (singularity-openfoam)

Loading: simply module load singularity-openfoam and use singularity_wrapper.

OpenFOAM is installed in /opt/OpenFOAM. The OpenFOAM bashrc file is automatically sourced when you exec or shell within the image to set PATH and so on.

Old image (OpenFOAM)

This is quite similar to the new image.

Within the container OpenFOAM is installed under /opt/openfoam4/ and ParaView under /opt/paraviewopenfoam50/. PATH is automatically appended with their respective paths so all program calls are available automatically.

Usage

(This has not been updated to the new image yet. To change to new image, don’t do the module use and instead just load singularity-openfoam.)

This example shows how you can run damBreak example. Firstly, let’s load the OpenFOAM module and create a folder for the example:

module use /share/apps2/singularity/modules
module load OpenFOAM
mkdir damBreak
cd damBreak

Secondly, let’s use singularity shell to copy example data files to the folder and to initialize the simulation.:

cp -r /opt/openfoam4/tutorials/multiphase/interFoam/laminar/damBreak/damBreak/0 .
cp -r /opt/openfoam4/tutorials/multiphase/interFoam/laminar/damBreak/damBreak/system .
cp -r /opt/openfoam4/tutorials/multiphase/interFoam/laminar/damBreak/damBreak/constant .
blockMesh
decomposePar
exit

After this one can submit the following slurm script with sbatch to solve the problem:

#!/bin/bash
#SBATCH --time=00:30:00
#SBATCH --ntasks=4
#SBATCH --mem=4G

module use /share/apps2/singularity/modules
module purge
module load OpenFOAM

srun singularity_wrapper exec interFoam -parallel

Paraview can be started similarly with this script:

#!/bin/bash
#SBATCH --time=00:10:00
#SBATCH --mem=8G

module use /share/apps2/singularity/modules
module purge
module load OpenFOAM

singularity_wrapper exec paraview