COMSOL

COMSOL Multiphysics is a cross-platform finite element analysis, solver and multiphysics simulation software. It allows conventional physics-based user interfaces and coupled systems of partial differential equations (PDEs). COMSOL provides an IDE and unified workflow for electrical, mechanical, fluid, acoustics, and chemical applications.

Usage

Version	module
5.4	comsol/5.4

CAUTION: There are only 3 COMSOL licenses available for all of Lehigh. Considering that COMSOL is used outside of Research Computing resources that do not have a wall time limit, there may not be a license available when your job is scheduled to start.

Example Submit Scripts

Single Node Simulation (/share/Apps/examples/comsol/comsol.slr)

#!/bin/bash

#SBATCH -p lts 
#SBATCH --nodes=1 
#SBATCH --ntasks-per-node=10 
#SBATCH --time=60
#SBATCH -J comsol


cd ${SLURM_SUBMIT_DIR}

module load comsol

cp /share/Apps/comsol/comsol54/multiphysics/applications/COMSOL_Multiphysics/Fluid_Dynamics/cylinder_flow.mph .
comsol batch -np ${SLURM_NTASKS} -inputfile cylinder_flow.mph -outputfile cylinder_flow_output.mph -batchlog comsollog.txt

Multi Node Simulation (/share/Apps/examples/comsol/comsol-mpi.slr)

#!/bin/bash

#SBATCH -p infolab
#SBATCH --nodes=2
#SBATCH --ntasks-per-node=2
#SBATCH --time=60


cd ${SLURM_SUBMIT_DIR}

module purge
module load comsol
module load mpich

cp /share/Apps/comsol/comsol54/multiphysics/applications/COMSOL_Multiphysics/Fluid_Dynamics/cylinder_flow.mph .

# single node runs
#comsol  batch -np ${SLURM_NTASKS} -inputfile cylinder_flow.mph -outputfile cylinder_flow_output.mph  -batchlog comsollog.txt

# multi node runs
comsol -nn ${SLURM_NTASKS} --nnhost ${SLURM_NNODES} -mpi mpich2  -mpifabrics shm:ofa batch -inputfile cylinder_flow.mph -outputfile cylinder_flow_output.mph -batchlog comsollog.txt