Region-wise decomposition -- CFD Online Discussion Forums

October 25, 2018, 12:19	Region-wise decomposition	#1
mortezahdr Member Morteza Join Date: Jan 2018 Posts: 30 Rep Power: 8	Dear Foamers, I have a case with 200,000 particles concentrated on a very small portion of my domain. Decomposing the case with usual types causes 80% of the particles to locate on a single processor, leading to very slow solution, even though I am using 128 cores. Therefore, I need to use manual decomposition. After studying some posts here, I noticed decomposePar -cellDist command gives a column of processor numbers assigned to each cell. Since I have around 5 million cells, I do not know how to use this tool. Is there any example showing this for a large mesh?

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