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decomposePar not decomposing refinement history |
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July 8, 2010, 14:23 |
decomposePar not decomposing refinement history
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#1 |
Senior Member
Kyle Mooney
Join Date: Jul 2009
Location: San Francisco, CA USA
Posts: 323
Rep Power: 18 |
Hi all,
I have been getting remeshing inconsistancies between serial and parallel runs when using interDyMFoam (1.6.x and 1.7.x) and think that I have figured out the issue. I have been using interDyMFoam in serial as somewhat of a preprocessor/meshing tool to get a fine mesh around my interface. Once I had the mesh built I decomposed it and attempted to run it in parallel only to have dynamicRefineMesh re-refine the cells that were already adequate. It seems that the refinementHistory file is not being decomposed and passed into the processorX folders. Is there a way to readily decompose that file? |
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July 9, 2010, 05:01 |
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#2 |
Senior Member
Mattijs Janssens
Join Date: Mar 2009
Posts: 1,419
Rep Power: 26 |
Correct, the refinementHistory is not decomposed.
(the problem with it is that the history can refer to local cells only. So a valid decomposition would have to make sure that it keeps a cluster of cells originating from the same cell together. In other words base the decomposition on the coarsest level (= starting level). Not easy and then one might as well just decompose the starting mesh and preprocess in parallel) Mattijs |
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July 9, 2010, 09:48 |
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#3 |
Senior Member
Kyle Mooney
Join Date: Jul 2009
Location: San Francisco, CA USA
Posts: 323
Rep Power: 18 |
Thanks for the reply!
It does seem that that would be a non-trivial problem. Preprocessing in parallel seems to be working. Thanks a lot. Kyle |
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