Comsol

Introduction

COMSOL Multiphysics provides a range of simulation, finite element analysis and solver functionality. More information on the package is available here:
http://www.comsol.com/

Versions available:

System Version(s) Load command
ARC3 5.2 module load comsol/5.2
ARC3 5.2a module load comsol/5.2a
ARC3 5.3 module load comsol/5.3
ARC3 5.3a module load comsol/5.3a
ARC3 5.4 module load comsol/5.4
ARC4 5.4 module load comsol/5.4

Accessing the software

To make COMSOL available in your environment, enter the command:

module load comsol

Example script

This script will request exclusive access to an entire node.


#!/bin/bash
# Run in current working directory with current environment
#$ -cwd -V

#change this line for time
#$ -l h_rt=01:00:00

#Email on start and end of job
#$ -m be
#$ -M @leeds.ac.uk

#the line below sets the number of cores and nodes
#$ -l nodes=1

module load comsol/5.1
export LM_LICENSE_FILE=<port@server>:$LM_LICENSE_FILE
comsol batch -np $NSLOTS -tmpdir $TMPDIR -inputfile input.mph -outputfile outphysics.mph -recoverydir /nobackup/$USER/comsolrecovery

In the script above:

Change <email> to your username. For example, if your username is matzz :

#$ -M matzz@leeds.ac.uk

Change <port@server> to the license server details obtained from your Faculty IT support. For example is you are given 1322@server :

export LM_LICENSE_FILE=1322@server:$LM_LICENSE_FILE

Managing comsol memory useage while running:

Running comsol in command line can often create a large number of temporary files in the .comsol directory in your home directory (Details on running comsol in command line). This can often lead to a quota exceeded error on jobs.

To resolve this we recommend creating a comsolrecovery directory in your nobackup and adding the following line to your comsol batch command in your submission script.

-recoverydir /nobackup/$USER/comsolrecovery