decomposePar not decomposing refinement history
 

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?

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

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