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decomposePar -region (OF 2.1) without splitting regions in separate parts

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Old   September 16, 2013, 06:35
Default decomposePar -region (OF 2.1) without splitting regions in separate parts
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Michiel
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I am running a simulation with a multiregion solver (a modification of chtMultiRegionFoam) and want to run some of my calculations in parallel.

I know I can use decomposePar -region regionName to decompose the different regions separately, but this gives quiet an illogical mesh division because 1 region is almost surrounded by another region but gets split over all processors regardless. (See the image of the full mesh with the 3 regions coloured and a snapshot of what part is set to processor0).

My question is: can anybody tell me how I can make sure that the decomposition is done based on position in the mesh, not based on position in the region? For this test I just used the simple decomposition method.
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Old   November 15, 2013, 05:07
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Andrea Prestigiacomo
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Hi Michiel,
I'm just facing the same problem in these days...
Have you found the solution?

Thanks in advance,

Andrea
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