CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Pre-Processing

Parallel simulation

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

Reply
 
LinkBack Thread Tools Display Modes
Old   April 23, 2013, 05:35
Default Parallel simulation
  #1
New Member
 
pannsave
Join Date: Apr 2009
Posts: 25
Rep Power: 8
pannsave is on a distinguished road
Hi Everyone,

I am just runing my simulation in parallel. but I could not succeed the simualtion due to the following error message

--> FOAM FATAL ERROR:
Wrong number of processor divisions in geomDecomp:
Number of domains : 32
Wanted decomposition : (2 2 1)
From function geomDecomp::geomDecomp(const dictionary& decompositionDict)
in file geomDecomp/geomDecomp.C at line 50.
FOAM exiting..


I am going to use total number of 32 processors and my composerParDict is follows

numberOfSubdomains 32;
method simple;
simpleCoeffs
{
n ( 2 2 1 );
delta 0.001;
}
hierarchicalCoeffs
{
n ( 1 1 1 );
delta 0.001;
order xyz;
}
metisCoeffs
{
processorWeights ( 1 1 1 );
}
manualCoeffs
{
dataFile "";
}
distributed no;
roots ( );

I have writen composerParDict based on DamBreak tutorial. I would be thankful to you if you have any suggestions for this error.

Panneer
pannsave is offline   Reply With Quote

Old   April 23, 2013, 06:13
Default
  #2
Member
 
Andreas Wendy
Join Date: Aug 2012
Posts: 73
Rep Power: 5
A.Wendy is on a distinguished road
Quote:
Originally Posted by pannsave View Post

--> FOAM FATAL ERROR:
Wrong number of processor divisions in geomDecomp:
Number of domains : 32
Wanted decomposition : (2 2 1)
From function geomDecomp::geomDecomp(const dictionary& decompositionDict)
in file geomDecomp/geomDecomp.C at line 50.
FOAM exiting..
hi

the number of domains have to be the same that are mentioned is the composition. in your example:
--------
numberOfSubdomains 32;
method simple;
simpleCoeffs
{
n ( 2 2 1 ); <----- that wrong x * y * z must be 32. e.g. (4 4 2)
delta 0.001;
}
-------
A.Wendy is offline   Reply With Quote

Old   April 23, 2013, 10:15
Default
  #3
New Member
 
pannsave
Join Date: Apr 2009
Posts: 25
Rep Power: 8
pannsave is on a distinguished road
Hi Andreas,


Thanks. It works now


Panneer
pannsave is offline   Reply With Quote

Reply

Thread Tools
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Parallel Simulation Numeca Fine daxterss NUMECA 6 June 24, 2013 04:52
Simulation running in background samiam1000 OpenFOAM 1 November 22, 2012 05:24
Some errors of parallel simulation with Fluent on Windows 7 lzgwhy FLUENT 0 October 1, 2012 02:56
Engine Simulation in parallel Peter_600 OpenFOAM 0 July 26, 2012 06:02
Parallel Deforming Mesh Simulation Tristan CFX 1 January 28, 2009 18:59


All times are GMT -4. The time now is 11:55.