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OpenFOAM

OpenFOAM is a C++ free software toolkit for numerical calculation of continuum mechanics problems, with code compliant with the GNU General Public License. It supports data preprocessing, post-processing, and custom solvers, and is commonly used in the field of computational fluid dynamics (CFD). The software is maintained by the OpenFOAM Foundation.**

1. Script Template​

submit.sh
#!/bin/bash
#SBATCH --nodes=1                   # Number of nodes
#SBATCH --ntasks-per-node=56        # Number of cores per node
#SBATCH --ntasks=56                 # Total number of cores
#SBATCH --partition=g1_share        # Queue partition; must specify the correct partition
#SBATCH --job-name=hello            # Job name
#SBATCH --output=hello.%j.out       # Normal log output (%j parameter value is jobId)
#SBATCH --error=hello.%j.err        # Error log output (%j parameter value is jobId)

##############################################
#          Software Envrironment             #
##############################################
unset I_MPI_PMI_LIBRARY                        # Unset default MPI library, use Intel's built-in
export I_MPI_JOB_RESPECT_PROCESS_PLACEMENT=0   # Parameter modification required for Intel multi-node jobs
module load intel/2022 intelmpi/2022           # Load Intel environment
moudle load openfoam                           # Load software (refer to module usage instructions to select the specific version)

##############################################
#               Run job                      #
##############################################

# Mesh the geometry
blockMesh
# Decompose the mesh for parallel run
decomposePar
# Run the solver
mpiexec simpleFoam -parallel 
# Reconstruct the parallel results
reconstructPar