![]() Posted in ANSYS | Tagged ANSYS Fluent | Leave a comment Make sure you choose the right mpi parameter.From our observation, if the -cflush is placed before -mpi, it seems to initiate the flush, but another error would be generated. Do note that “-cflush” and that it should be placed after the -mpi flag.fluent 3ddp -g -t$nprocs -mpi=ibmmpi -cflush -ssh -lsf -cnf=$PBS_NODEFILE -pinfiniband -nmon -i $inputfile >& $PBS_JOBID.log 2>&1 ![]() Do look at the generated logs which will give lots of information. There were a few steps that we took to resolve the issues. Libibverbs: Warning: no userspace device-specific driver found for /sys/class/infiniband_verbs/uverbs2įluent_mpi.20.1.0: Rank 0:110: MPI_Init: ibv_create_qp(left ring) failedįluent_mpi.20.1.0: Rank 0:110: MPI_Init: probably you need to increase pinnable memory in /etc/security/nfįluent_mpi.20.1.0: Rank 0:110: MPI_Init: ibv_ring_createqp() failedįluent_mpi.20.1.0: Rank 0:110: MPI_Init: Can't initialize RDMA deviceįluent_mpi.20.1.0: Rank 0:110: MPI_Init: Internal Error: Cannot initialize RDMA protocol ![]() Libibverbs: Warning: no userspace device-specific driver found for /sys/class/infiniband_verbs/uverbs1 One of my users was facing the issues when running ANSYS-20.1 Fluent Error: eval: unbound variable
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