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Solving lots of equations in parallel on the same mesh

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Old   February 29, 2016, 09:48
Default Solving lots of equations in parallel on the same mesh
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I'd like to use parallelization to solve lots of equations on a small mesh. The equations are independent of each other, so I would like to solve them separately on different cores.

This is somewhat possible by copying the complete mesh in the processor subdirectories. However, doing this requires an equal number of iterations on each core because there are some communications happening during the solve function. This also limits the performance because the equations may take a different amount of time to solve and waiting for the other cores introduces unnecessary delays. Basically I would like to have only one communication at the end to combine the results.

Any ideas how to disable the inter process communication during the solving of an equation? I'm wondering if one could disable mpi temporarily and then later on resume it?

I think http://www.cfd-online.com/Forums/ope...tml#post584556 might be a possible solution, but I have yet to try it.

Edit: Tried and works.

Last edited by chriss85; March 2, 2016 at 11:40.
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