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Multicore post-processing of solutions (from another study) in parallel preferably without GUI
Posted 2024年10月12日 GMT+2 16:42Results & Visualization, Studies & SolversVersion 5.42 Replies
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I am trying to do post processing of solutions coming from an eigenvalue study that has already generated an enormous file. I am using the Derived Values interface under Results to do volume integration of modes. Unfortunately, I am only able to do it with the GUI and it is using only one core (out of 64) and one solution at a time, which is very slow.
Is there a way to do this in parallel and multicore, ideally without the use of GUI, such that a txt file is generated after the process?
My version of COMSOL is 5.4.
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Hi Ali,
post processing can be a little painful in between. I sometimes used a workaround for integrations by doing them during computations in nonlocal couplings. It is then important to store the result in a state variable which becomes part of the solution. If you don't use a state variable COMSOL will redo the integration in the post processing. In my experience the solution is not significantly slowed down by this procedure. Solver code is more efficient than post processing code.
Other people were exporting the solution in order to do such post processing in own software, e.g. Python. Not sure if this is faster though. I never tried it.
Cheers Edgar
-------------------Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
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Computing volume integrals in Results has been parallelized for a couple of versions, but I don't think that it was parallelized in 5.4.