|
[Sponsors] |
Resuming OpenFoam with different number of processors |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
May 2, 2014, 09:36 |
Resuming OpenFoam with different number of processors
|
#1 |
New Member
Join Date: May 2014
Posts: 1
Rep Power: 0 |
Hi everbody,
Is there a way to stop an OpenFoam execution and re-run it later with more processors? I've searched the forums and tried to use reconstructPar and redistributePar, but I've had trouble getting them to work. Could anybody provide more detailed steps on how to achieve this? Any help would be greatly appreciated, Thanks. |
|
May 2, 2014, 12:18 |
restarting with MPU changes
|
#2 |
New Member
Jim Conger
Join Date: Jan 2014
Location: California, USA
Posts: 21
Rep Power: 12 |
No guarantees, but what I would try would be:
1) At completion of first set of runs, run reconstructPar. This will reassemble the solution from all separated MPU runs into single directories - just as if you had run the whole problem on one CPU. 2) Delete the processorN directories 3) Make sure your controlDict file has "startFrom latestTime;" and an endTime greater than your last solution. 4) Restart the problem with a different number of processors by changing your MPU settings and then running decomposePar, mpirun, reconstructPar as usual. I have only done this going from one to many to one processor. |
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
AMI interDyMFoam for mixer | danny123 | OpenFOAM Running, Solving & CFD | 4 | June 19, 2013 04:49 |
New OpenFOAM Forum Structure | jola | OpenFOAM | 2 | October 19, 2011 06:55 |
DecomposePar unequal number of shared faces | maka | OpenFOAM Pre-Processing | 6 | August 12, 2010 09:01 |
stability and number of processors ?? | sersunzo | OpenFOAM Running, Solving & CFD | 0 | June 9, 2009 11:45 |
Unaligned accesses on IA64 | andre | OpenFOAM | 5 | June 23, 2008 10:37 |