CFD Online Discussion Forums - [snappyHexMesh] snappyHexMesh parallel run error

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snappyHexMesh parallel run error

Hi Foamers,

I am having a problem when running the snappyHexMesh in parallel on two machines.

I have followed the procedure according to that indicated in OpenFoam guidelines
http://www.openfoam.org/docs/user/ru...s-parallel.php

However, when I run sHM in series, it works fine, but takes a long time. Can anyone suggest me a wayout to this problem.

The version of OF is 2.1.x.

Code:

[cfd034100:13018] *** An error occurred in MPI_Recv

[cfd034100:13018] *** on communicator MPI_COMM_WORLD

[cfd034100:13018] *** MPI_ERR_TRUNCATE: message truncated

[cfd034100:13018] *** MPI_ERRORS_ARE_FATAL (your MPI job will now abort)

--------------------------------------------------------------------------

mpirun has exited due to process rank 0 with PID 13018 on

node cfd034100 exiting without calling "finalize". This may

have caused other processes in the application to be

terminated by signals sent by mpirun (as reported here).

Thanks,
Dhruv.

Is there more error information available from the output?

I had strange issues with snappyHexMesh in parallel... it turned out that it was reading the fvSchemes file, which made it crash. I do not know what it was doing with the file, or what was wrong with it. Copying fvS* from a snappy tutorial solved that problem...

Regards,
k

sHM run error in parallel

Quote:

Originally Posted by kalle (Post 344716)

Hi kalle,

This is the only error being reported. I have some functionObjects in fvSchemes file, which I read on this forum might be related to this kind of error, so I tried commenting that out. However, it made no difference.

Regards,

Dhruv