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-   -   Cannot run jobs more than on two nodes (http://www.cfd-online.com/Forums/openfoam-solving/107232-cannot-run-jobs-more-than-two-nodes.html)

finnishfoam September 20, 2012 19:38

Cannot run jobs more than on two nodes
 
We are running OpenFoam with Thirdparty openMPI 1.5.3.
We can only sign jobs upto two nodes.
If we sign jobs to 3 or more nodes job never starts and command just hangs.

This is our command :
(/mirror is NFS share visible on all nodes)

/mirror/OpenFOAM/ThirdParty-2.1.x/platforms/linux64Gcc/openmpi-1.5.3/bin/mpirun -np 12 -hostfile machines /mirror/OpenFOAM/OpenFOAM-2.1.x/bin/foamExe c -prefix /mirror/OpenFOAM interFoam -parallel | tee log

Any ideas why this does not work on more than two nodes (4 cores per node)?

magazoni December 7, 2012 10:25

Hi,

Did you resolve your problem? Because it's happening the same thing with my cluster.

Regards,
Felipe Magazoni

duongquaphim December 8, 2012 13:41

we use command like

#mpirun -machinefile $PBS_NODEFILE -mca plm_rsh_agent rsh -np 16 interFoam -parallel >& output.$PBS_JOBID.txt

and it works well.


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