pimpleDyMFoam on multiple nodes -- CFD Online Discussion Forums

October 9, 2012, 05:59	pimpleDyMFoam on multiple nodes	#1
amd New Member Join Date: Feb 2012 Posts: 2 Rep Power: 0	Hello, I am experiencing some trouble trying to use the solver pimpleDyMFoam in parallel on multiple nodes. In this case, the computation is slowed (8 CPUs on 2 nodes is twice slower than 8 CPUs on 1 node). I use scotch to decompose the domain (around 39000 cells by CPU) and GAMG to solve the linear systems. Do you have any idea about what is the problem? I would greatly appreciate your help. AMD

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