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Sharing Knowledge HPC Linux Comsol with matlab
Posted 28.03.2017, 09:01 GMT-4 LiveLink for MATLAB, Cluster & Cloud Computing Version 5.2a 1 Reply
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Hallo everybody,
i had a lot of problems to start my Comsol Simulation via matlab with an accurate cpu performance. It took me a lot of time to figure out what I was doing wrong. Therefor I would like to share my experience:
1. the usage of the MUMPS solver was three times faster than the PARADISO solver
2. if i used -clustersimple as an shell option for comsol, the CPU ussage was very strange. It seemed that the one job ran on every cpu at once (every cpu 100%) --> no sharing. When i compared the performance with an normal -nn 1 -np 16 start the Simulation was solved three times quicker as well.
My job had to be started via matlab. Therefore i used the following Shell-Script
#!/bin/bash -l
#PBS -l nodes=1:ppn=16
#PBS -l walltime=24:00:00
#PBS -N Testjob
cd $dir
module load matlab
module load comsol
comsol -nn 1 -np 16 server &
sleep 10
matlab -nodisplay -nosplash -nn 1 -np 16 -r "run('$dir/Simufile.m')"
regards
Florian
i had a lot of problems to start my Comsol Simulation via matlab with an accurate cpu performance. It took me a lot of time to figure out what I was doing wrong. Therefor I would like to share my experience:
1. the usage of the MUMPS solver was three times faster than the PARADISO solver
2. if i used -clustersimple as an shell option for comsol, the CPU ussage was very strange. It seemed that the one job ran on every cpu at once (every cpu 100%) --> no sharing. When i compared the performance with an normal -nn 1 -np 16 start the Simulation was solved three times quicker as well.
My job had to be started via matlab. Therefore i used the following Shell-Script
#!/bin/bash -l
#PBS -l nodes=1:ppn=16
#PBS -l walltime=24:00:00
#PBS -N Testjob
cd $dir
module load matlab
module load comsol
comsol -nn 1 -np 16 server &
sleep 10
matlab -nodisplay -nosplash -nn 1 -np 16 -r "run('$dir/Simufile.m')"
regards
Florian
1 Reply Last Post 28.03.2017, 09:05 GMT-4
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Posted:
8 years ago
If you got some experience too do not hesitate to share those in this post. I think a lot of people would be very gratefull