Comsol/Example

As an example for a Comsol job, we use the Plasmonic Wire Grating Analyzer which can be downloaded from the Comsol web site. It computes the coefficients of refraction, specular reflection, and first-order diffraction as functions of the angle of incidence for a plasmonic wire grating on a dielectric substrate.

[sfux@eu-login-03 comsol]$ ls
plasmonic_wire_grating.mph
[sfux@eu-login-03 comsol]$ module load comsol/6.1
[sfux@eu-login-03 comsol]$ sbatch --ntasks=1 --cpus-per-task=4 --mem-per-cpu=2g --tmp=8g --wrap="comsol batch -np 4 -autosave off -tmpdir \$TMPDIR -inputfile plasmonic_wire_grating.mph -outputfile output.mph"
Submitted batch job 39996633
[sfux@eu-login-03 comsol]$ squeue
             JOBID PARTITION     NAME     USER ST       TIME  NODES NODELIST(REASON)
          39996633 normal.4h     wrap     sfux  R       0:10      1 eu-g5-003-2
[sfux@eu-login-03 comsol]$ squeue
             JOBID PARTITION     NAME     USER ST       TIME  NODES NODELIST(REASON)
[sfux@eu-login-03 comsol]$ ls
output.mph  output.mph.recovery  output.mph.status  plasmonic_wire_grating.mph  slurm-39996633.out
[sfux@eu-login-03 comsol]$ grep -A8 "Current Progress: 100 %" slurm-39996633.out
---------- Current Progress: 100 % - Solving linear system
Memory: 894/894 7336/7336
Solution time: 5 s.
Physical memory: 895 MB
Virtual memory: 7336 MB
Ended at Dec 14, 2023, 8:42:41 AM.
----- Stationary Solver 1 in Study 1/Solver 1 (sol1) -------------------------->
Running: Study 2
<---- Compile Equations: Frequency Domain in Study 2/Solver 2 (sol2) -----------
--
---------- Current Progress: 100 % - Solving linear system
Solution time: 5 s.
Physical memory: 1.08 GB
Virtual memory: 7.35 GB
Ended at Dec 14, 2023, 8:42:50 AM.
----- Stationary Solver 1 in Study 2/Solver 2 (sol2) -------------------------->
Run time: 20 s.
Saving model: /cluster/home/sfux/testrun/comsol/comsol/output.mph
Save time: 0 s.
--
---------- Current Progress: 100 % - Done
Memory: 935/1083 7345/7345
Comsollauncher: Cannot open display:
[sfux@eu-login-03 comsol]$

Comsol can create a large number of files in your home directory, therefore we recommend to have a look at the Comsol tutorial about redirecting files created by Comsol from your home directory to the local scratch.