|March 10, 2010, 05:16||
Averaging in parallel - Simulation slowed down
Dr. Fabian Schlegel
Join Date: Apr 2009
Location: Dresden, Germany
Posts: 210Rep Power: 10
I am running OpenFOAM in parallel on a SGI Altix 4700 machine. To speed up my simulation a little bit I used 220 Cpus in parallel for a 2.2 Mio. cell mesh. May be this are a little bit to much Cpus and leads to communication overhead but its just a try.
But the important thing I noticed is, if I enable the averaging with the fieldAverage1() function in my controlDict the simulation is slowed down. I assume that the averaging isn't done in parallel? Did anybody observed a similar behavior? May be there is a better way to average such highly distributed jobs?
|Thread||Thread Starter||Forum||Replies||Last Post|
|HP MPI warning...Distributed parallel processing||Peter||CFX||10||May 14, 2011 06:17|
|FSI TWO-WAY SIMULATION||Smagmon||CFX||1||March 6, 2009 14:24|
|Parallel Deforming Mesh Simulation||Tristan||CFX||1||January 28, 2009 18:59|
|Continuous vs interrupted simulation||sega||OpenFOAM Running, Solving & CFD||4||November 3, 2008 15:29|
|3-D Contaminant Dispersal Simulation||Apple L S Chan||Main CFD Forum||1||December 23, 1998 11:06|