Licences
comsol --help
Will display a list of COMSOL batch commands.
Useful Links
Batch Submission
When using COMSOL batch the following flags can be used to control distribution.
-mpibootstrap slurm |
Instructs COMSOL to get it's settings from SLURM |
-np <cpus> |
Number of CPUs to use in each task. Equivalent to slurm input --cpus-per-task or environment variable ${SLURM_CPUS_PER_TASK} |
-nn <tasks> |
Number of tasks total. --ntasks or ${SLURM_NTASKS} |
-nnhost <tasks> |
Number of tasks per node. --ntasks-per-node ${SLURM_NTASKS_PER_NODE} |
-f <path to hostlist> |
Host file. You wont't need to set this in most circumstances. |
Example Scripts
Serial ExampleSingle process with a single thread Usually submitted as part of an array, as in the case of parameter sweeps. |
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Shared Memory Example
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Distributed Memory Example
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Hybrid Example
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Important
If no output file is set, using
--output
the input file will be updated instead.
Interactive Use
Providing you have set up X11, you can open the COMSOL GUI by running the command comsol
.
Large jobs should not be run on the login node.
Recommendations
COMSOL is relatively smart with it's use of resources, if possible it is preferable to use --cpus-per-task
over --ntasks