Ryan. |
July 17, 2017 16:39 |
Problem running Fluent in parallel
Hi,
I am trying to run a very simple case in parallel so I can make sure it works before running my actual simulation. In my journal file I only do a few iterations. When I run it in serial using " fluent 2ddp -g -i jet2.jou > ${OUTFILE}" in my script, I get the solution in a few seconds . However, when I run it in parallel using "fluent 2ddp -t2 -pnmpi cnf=$PBS_NODEFILE -g -i jet2.jou > ${OUTFILE}" it writes the following message to the log-file and the job continues to run until reaching the wall-time without solving the problem or giving any errors. I would appreciate it if you could help me find the problem. I am running this simulation in background on a Linux cluster.
Quote:
Host spawning Node 0 on machine "l1439" (unix).
/apps/Ansys/15.0.7/v150/fluent/fluent15.0.7/bin/fluent -r15.0.7 2ddp -flux -node -alnamd64 -t24 -pethernet -mpi=pcmpi -mport 10.188.11.229:10.188.11.229:42773:0
Starting /apps/Ansys/15.0.7/v150/fluent/fluent15.0.7/multiport/mpi/lnamd64/pcmpi/bin/mpirun -e MPI_USE_MALLOPT_MMAP_MAX=0 -np 2 /apps/Ansys/15.0.7/v150/fluent/fluent15.0.7/lnamd64/2ddp_node/fluent_mpi.15.0.7 node -mpiw pcmpi -pic ethernet -mport 10.188.11.229:10.188.11.229:42773:0
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Thanks in advance.
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