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-   -   Dam Break Tutorial - 2.3.11 Running in parallel (http://www.cfd-online.com/Forums/openfoam-solving/96105-dam-break-tutorial-2-3-11-running-parallel.html)

vitors January 12, 2012 10:21

Dam Break Tutorial - 2.3.11 Running in parallel
 
Hello all,

I tried to extend the damBreak parallel tutorial to run it in two quad-core machines.

I have the same directories in both machines, ssh working without password.

I've set the decomposeParDict to 7 slaves.

The decomposePar command seems to work fine.

When I run the simulation (mpirun -np 8 --hostfile machines interFoam -parallel)
I got the message: "--> FOAM FATAL ERROR : Cannot find file "points" in directory "constant/polyMesh"

I've read some posts about it, but all of them were about the reconstruction. I've got it when trying to run the simulation...

Any suggestions?

Thanks in advance.

|matthias| January 17, 2012 07:38

Hello vitors,

have you looked for the points in the constant/polyMesh directory? In case they don t exist, you should run blockMesh first, then decomposePar and finally mpirun...

Greetings, matthias

vitors January 17, 2012 07:46

Quote:

Originally Posted by |matthias| (Post 339704)
Hello vitors,

have you looked for the points in the constant/polyMesh directory? In case they don t exist, you should run blockMesh first, then decomposePar and finally mpirun...

Greetings, matthias

Hi Matthias. I checked it and the files are there. But I could solve and (as usual when we are begginers) the problem was in decompositionParDict file. The roots were incorrect. I was using the case directory and when changed to the upper directory the simulation ran.

Thanks for your reply,

Vitor


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