Running decomposePar / reconstructPar as parallel apps?

carcass · March 16, 2009, 18:10

Hi,

Perhaps this is a stupid question, but I excel at those

Are decomposePar and reconstructPar parallel capable? What I mean is, can these programs successfully be run using OpenMPI or similar across multiple processors to speed the decomposition / reconstruction times for parallel cases?

Again, sorry if this is a silly question or if it could be answered by looking at the source of those programs--not a developer, just a tool-user in this case.

fra76 · March 17, 2009, 10:51

Hi!
They are not parallel, but you could consider using redistributeMeshPar, that does work in parallel.

Francesco

kwardle · July 22, 2009, 10:56

I wrote a basic bash script for running reconstructPar in pseudo-parallel mode as describe in this post. This is only useful if you need to reconstruct a large number of time directories from a transient run.

ssingh · January 17, 2024, 07:19

I have facing problem to run decomposePar in "of220", but it run in "of41". but when i have open paraview with "of220", processors distributed after decomposePar not read the cells...i think....nothing to show in paraview with of220....mostly in case of temperature....average temperature and maximum temperature both are same....plz suggest me solution

March 16, 2009, 18:10	Running decomposePar / reconstructPar as parallel apps?	#1
carcass New Member db Join Date: Mar 2009 Posts: 3 Rep Power: 17	Hi, Perhaps this is a stupid question, but I excel at those Are decomposePar and reconstructPar parallel capable? What I mean is, can these programs successfully be run using OpenMPI or similar across multiple processors to speed the decomposition / reconstruction times for parallel cases? Again, sorry if this is a silly question or if it could be answered by looking at the source of those programs--not a developer, just a tool-user in this case.

July 22, 2009, 10:56	psuedo-parallel usage of reconstructPar	#3
kwardle Senior Member Kent Wardle Join Date: Mar 2009 Location: Illinois, USA Posts: 219 Rep Power: 21	I wrote a basic bash script for running reconstructPar in pseudo-parallel mode as describe in this post. This is only useful if you need to reconstruct a large number of time directories from a transient run.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Parallel running of Fluent	Bhanu Gupta	FLUENT	3	April 7, 2011 09:32
Running in parallel	Rasmus Gjesing (Gjesing)	OpenFOAM	35	March 31, 2011 18:21
Modify the reconstructPar to delete the reconstructed parallel directories within the loop	maka	OpenFOAM Post-Processing	2	December 16, 2005 10:37
Modifing reconstructPar to delete the reconstructed parallel directories	maka	OpenFOAM Pre-Processing	1	December 13, 2005 07:16
CFD Apps	Vicky Vigia	Main CFD Forum	2	October 20, 2003 04:37

March 17, 2009, 10:51		#2
fra76 Senior Member Francesco Del Citto Join Date: Mar 2009 Location: Zürich Area, Switzerland Posts: 237 Rep Power: 18	Hi! They are not parallel, but you could consider using redistributeMeshPar, that does work in parallel. Francesco

January 17, 2024, 07:19		#4
ssingh New Member S Singh Join Date: Jul 2023 Posts: 1 Rep Power: 0	I have facing problem to run decomposePar in "of220", but it run in "of41". but when i have open paraview with "of220", processors distributed after decomposePar not read the cells...i think....nothing to show in paraview with of220....mostly in case of temperature....average temperature and maximum temperature both are same....plz suggest me solution