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Notes for running case in OpenFOAM
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Decomposition methods in parallel

Posted April 23, 2013 at 02:05 by Tushar@cfd (Blogs: OpenFOAM)
Updated March 27, 2015 at 06:51 by Tushar@cfd (Minor corrections)

OpenFOAM has four methods of decomposition:
(1) simple
(2) hierarchical
(3) scotch
(4) manual

"Scotch decomposition requires no geometric input from the user and attempts to minimise the number of processor boundaries."(for more information refer OpenFOAM website)

We tried to compare "simple" and "scotch" methods. These methods were verified for a test case using similar processor inputs:

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