Instructions for using Matlab software
Matlab is programming platform for analysing and designing systems, primary for numeric computing. Supports matrix manipulations, data plotting, implementation of algorithms, development of user interfaces, etc. Programs written in Matlab, can use libraries written in C, C++, Java and Fortran. Developed by MathWorks, read more
Matlab is a licensed software, HPC Vega offers
Standard Concurrent license, which is intended to be used by multiple users simultaneously.
- MATLAB Distrib Comp Engine (Total of 400 licenses issued)
- MATLAB (Total of 1 license issued)
- MATLAB Distrib Computing Toolbox (Total of 1 license issued)
Read more about our concurrent license at link.
Matlab version R2021a is available on HPC Vega, through module.
$ module load matlab/matlab-R2021a
Matlab user interfaces
For the graphical user interface (GUI), X11 forwarding must be enabled on the client site, otherwise an interactive command line session will begin.
The easiest way to check this is
echo $DISPLAY, if value is not specified, the forwarding does not work.
Graphical user interface (GUI)
$ matlab -display Xdisplay
Command line interface (CLI)
$ matlab -nodisplay
For additional information about Matlab commands, load module from your shell and check the help section.
$ matlab -h
Example of a Slurm task
The following example shows a task that will be run on 2 nodes and 12 cores. The job requires 2 GB RAM per core and will be carried out for 5 minutes on
Content of inputfile
function helloworld disp('Hello World!') end
Content of SBATCH script:
#!/bin/bash #SBATCH --job-name=matlab-test #SBATCH --time=00:05:00 #SBATCH --partition=cpu #SBATCH --nodes=2 #SBATCH --ntasks-per-node=1 #SBATCH --cpus-per-task=12 module load matlab/matlab-R2021a matlab -nodisplay -r matlabscript
!!! Note: Input file, e.g. shell or sbatch script must be exclude
.m, output will be written inside
Example of sending with ARC
Firstly you will need ARC Client and a
.xrsl file in which you state which resources you need to start the job, and contains two additional input files.
& (count = 12) (countpernode = 2) (jobname = matlab-test) (inputfiles = ("matlabscript.sh" "") ("matlabscript.m" "") ) (executable = matlabscript.sh) (outputfiles = ("example.out" "")) (stdout=example.log) (join=yes) (gmlog=log) (memory=2000) (walltime="5 minutes")
#!/bin/bash #Setup environment . /ceph/hpc/software/cvmfs_env.sh #Load module module --ignore-cache load matlab #Execute script matlab -nodisplay -r matlabscript
For input script examples e.g.
matlabscript.m, check the official documentation.
- Official Matlab user documentation: https://www.mathworks.com/help/matlab/
- Official Matlab examples: https://www.mathworks.com/help/examples.html