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parallel calculation on multiple computers

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Old   January 13, 2010, 04:12
Default parallel calculation on multiple computers
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Patrick Wang
Join Date: Dec 2009
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Hi,

I recenty figured out how to run snappy parallel on multiple computer. The method described in the user guide (Chapter 3) didn't work for me and I stumbled upon the solution by sheer accident. Instead of typing cpu=x after the name of the PCs, I used slots=x.

I tried various methods to execute the command such as:

mpirun --hostfile machines -np 6 snappyHexMesh -parallel

OR

mpirun --hostfile machines -np 6 foamJob -p -s snappyHexMesh

But I only received "orted: command not found. A daemon (pid x) died unexpectantly with status x while attempting ..."

Afterwards I just executed the snappy command for one PC.

foamJob -p -s snappyHexMesh

That actually worked.

But now I am unable to run simpleFoam on multiple PCs. If I use the command with "mpirun --hostfile ... simpleFoam -parallel", then I receive the same error as above.

Does anyone have any experience with this?

Thanks in advanced.

Patrick
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