CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Run in parallel: bug or what?

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 10, 2009, 10:34
Default Run in parallel: bug or what?
  #1
New Member
 
Valerio Novaresio
Join Date: Mar 2009
Location: Polonghera, Cuneo, Italy
Posts: 27
Rep Power: 17
novyno is on a distinguished road
Hi!

I've observed a strange behaviour when I tried to run in parallel a case (with multiple regions) decomposed in a "strange" way. For many reasons I have to decompose some region (with manual method) without using all processor.

For example:

if I set numberOfSubdomains = 3 (for many reasons I can't change this value) and I want to decompose my domain only using 2 CPU, it is sufficient for me that in the "manual file decomposition" appear only the number 0 and 1.

decomposePar works well and splits the domain (with only a WARNING). If I check the mesh decomposition with paraview all seems ok. But when I run

mpirun -np 3 icoFoam (for example) -parallel

the solver doesn't works...

Anyone can tell me why? Is this a bug or I can't decompose (never) a domain in this way?

Thanks...

Valerio
__________________
...The best way to acquire new knowledge is to share it...
novyno is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Parallel Moving Mesh Bug for Multi-patch Case albcem OpenFOAM Bugs 17 April 28, 2013 23:44
Script to Run Parallel Jobs in Rocks Cluster asaha OpenFOAM Running, Solving & CFD 12 July 4, 2012 22:51
Working directory via command line Luiz CFX 4 March 6, 2011 20:02
Parallel Run on dynamically mounted partition braennstroem OpenFOAM Running, Solving & CFD 14 October 5, 2010 14:43
Parallel Moving Mesh Bug for Multi-patch Case albcem OpenFOAM 0 May 21, 2009 00:23


All times are GMT -4. The time now is 01:21.