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Long time integration in linux across several batch jobs?
Posted 13 févr. 2015, 08:51 UTC−5 Version 4.4 0 Replies
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I'm trying to run a long time integration on a linux cluster. The time integration takes about 10 days of wall clock time. The maximum wall clock time of a job on the cluster is 5 days. Therefore, I'll need to calculate part of the time integration in the first job, stop COMSOL and then somehow restart COMSOL in the next batch job with the latest state from the first job. How can I do this?
I'm using the following command to start COMSOL in the batch job:
comsol batch -nn 2 -np 12 -mpmode turnaround -mpi intel -inputfile inputfile.mph -outputfile out.mph -batchlog out.log -job b1
I have tried 3 options:
1. To use the recovery files, but I have been unable to. When I take the recovery file, the simulation starts again at the beginning.
2. an 'explicit event', but I can't set it to stop the simulation and write a state file.
3. a 'stop condition', but I don't know how to set the simulation to stop at a defined time and write a state file.
I'd prefer a solution where I don't need to open the GUI to fiddle with the .mph-file before restarting the file, but any suggestions are welcome.
I'm a newbie to COMSOL, since I only provide support for users of the linux cluster. Any help would be highly appreciated.
Hello John Donners
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