CFD Online Discussion Forums - [snappyHexMesh] Able to run snappyHexMesh in parallel on local machine but unable to run on linux clu

Hello everyone,
I am trying to solve a ship resistance calculation problem using interDyMFoam on OpenFoam version 2.3. The OS is Red Hat. The desired mesh size is between 3.5 million to 6 million for half-body( generated using blockMesh followed by snappyHexMesh).
The problem I am encountering is that: The same sequence of commands submitted through command line will generate the mesh( in parallel ) , initialize the fields and submit the solution (in parallel) and reconstruct the time directories. But when the same sequence of commands is submitted with a slight change to the same version of OpenFoam (2.3) installed on a RedHat based cluster I am getting some errors.

The error is the following: There is a

Code:

Time = 0

No mesh.

Message in both cases at the end of reconstructParMesh –constant
But in local machine the checkMesh right after this displays increased number of cells and a ‘hull’ patch. In case of the cluster the checkMesh at this stage returns the original number of cells(as after blockMesh) and no ‘hull’ patch.
Thus the solution can proceed correctly on the local machine but not on the cluster.

I am submitting the following sequence of commands through command line:

Code:

surfaceFeatureExtract > log.surfaceFeatureExtract

blockMesh > log.blockMesh

checkMesh > log.checkMesh_blockMesh

decomposePar –force –latestTime > log.decomposePar_blockMesh

foamJob –screen –parallel –snappyHexMesh –overwrite

mv log log.snappyHexMesh

reconstructParMesh –constant > log.reconstructParMesh

checkMesh > log.checkMesh_snappyHexMesh

setFields > log.setFields

decomposePar –force –latestTime > log.decomposePar_snappyHexMesh

foamJob –screen –parallel –interDyMFoam

mv log log.interDyMFoam

reconstructPar > log.reconstructPar

The above log files are attached as localmachine.zip

I am submitting the following sequence of commands through a queue script

Code:

surfaceFeatureExtract

blockMesh

checkMesh

decomposePar –force –latestTime

time mpirun –hostfile \$PBS_NODEFILE –np \$np snappyHexMesh –overwrite

reconstructParMesh –constant

checkMesh

setFields

decomposePar –force –latestTime

time mpirun –hostfile \$PBS_NODEFILE –np \$np interDyMFoam –parallel

reconstructPar

The foam.log file generated by the above commands is attached as cluster.zip

For better illustration the cluster script is also attached as queue.zip. The job is submitted using

Code:

./foam_combined.run -Np 8 -Both

I have also attached my 0.org, constant and system directories for a cleaned case as case.zip for further clarity.
Any help will be much appreciated.