Learning Forum

[marine_engine]

After installing ANSYS Fluent on Centos 8.3,

If infiniband choosed in Fluent , the following error will occur.

The same phenomenon occurs even if Fluent install it repeatedly.

how to resolve this problem?

/ansys_inc/v212/fluent/fluent21.2.0/bin/fluent -r21.2.0 3ddp -pinfiniband -host -alnamd64 -t128 -mpi=intel -cnf=/home/e102588/Downloads/128.txt -path/ansys_inc/v212/fluent -ssh -cx rndb0:32989:37435

Starting /ansys_inc/v212/fluent/fluent21.2.0/lnamd64/3ddp_host/fluent.21.2.0 host -cx rndb0:32989:37435 "(list (rpsetvar (QUOTE parallel/function) "fluent 3ddp -flux -node -alnamd64 -r21.2.0 -t128 -pinfiniband -mpi=intel -cnf=/home/e102588/Downloads/128.txt -ssh") (rpsetvar (QUOTE parallel/rhost) "") (rpsetvar (QUOTE parallel/ruser) "") (rpsetvar (QUOTE parallel/nprocs_string) "128") (rpsetvar (QUOTE parallel/auto-spawn?) #t) (rpsetvar (QUOTE parallel/trace-level) 0) (rpsetvar (QUOTE parallel/remote-shell) 1) (rpsetvar (QUOTE parallel/path) "/ansys_inc/v212/fluent") (rpsetvar (QUOTE parallel/hostsfile) "/home/e102588/Downloads/128.txt") )"

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Build Time: May 28 2021 13:48:13 EDT Build Id: 10201  

 

Host spawning Node 0 on machine "rndb0" (unix).

/ansys_inc/v212/fluent/fluent21.2.0/bin/fluent -r21.2.0 3ddp -flux -node -alnamd64 -t128 -pinfiniband -mpi=intel -cnf=/home/e102588/Downloads/128.txt -ssh -mport 172.132.20.10:172.132.20.10:35801:0

Starting /ansys_inc/v212/fluent/fluent21.2.0/multiport/mpi/lnamd64/intel/bin/mpirun -f /tmp/fluent-appfile.e102588.614704 --rsh=ssh -genv I_MPI_FABRICS shm:dapl -genv I_MPI_DAPL_UD enable -genv I_MPI_FALLBACK_DEVICE disable -genv FLUENT_ARCH lnamd64 -genv I_MPI_DEBUG 0 -genv I_MPI_ADJUST_REDUCE 2 -genv I_MPI_ADJUST_ALLREDUCE 2 -genv I_MPI_ADJUST_BCAST 1 -genv I_MPI_ADJUST_BARRIER 2 -genv I_MPI_ADJUST_ALLGATHER 2 -genv I_MPI_ADJUST_GATHER 2 -genv I_MPI_ADJUST_ALLTOALL 1 -genv I_MPI_ADJUST_SCATTER 2 -genv I_MPI_ADJUST_SCATTERV 2 -genv I_MPI_ADJUST_ALLGATHERV 2 -genv I_MPI_ADJUST_GATHERV 2 -genv I_MPI_PLATFORM auto -genv I_MPI_DAPL_SCALABLE_PROGRESS 1 -genv PYTHONHOME /ansys_inc/v212/fluent/fluent21.2.0/../../commonfiles/CPython/3_7/linx64/Release/python -genv FLUENT_PROD_DIR /ansys_inc/v212/fluent/fluent21.2.0 -genv KMP_AFFINITY disabled -genv LD_PRELOAD /ansys_inc/v212/fluent/fluent21.2.0/multiport/mpi/lnamd64/intel/lib/libstrtok.so -genv TMI_CONFIG /ansys_inc/v212/fluent/fluent21.2.0/multiport/mpi/lnamd64/intel/etc/tmi.conf -machinefile /tmp/fluent-appfile.e102588.614704 -np 128 /ansys_inc/v212/fluent/fluent21.2.0/lnamd64/3ddp_node/fluent_mpi.21.2.0 node -mpiw intel -pic infiniband -mport 172.132.20.10:172.132.20.10:35801:0

[0] MPI startup(): dapl fabric is not available and fallback fabric is not enabled

[2] MPI startup(): dapl fabric is not available and fallback fabric is not enabled

[4] MPI startup(): dapl fabric is not available and fallback fabric is not enabled

[5] MPI startup(): dapl fabric is not available and fallback fabric is not enabled

[7] MPI startup(): dapl fabric is not available and fallback fabric is not enabled

[8] MPI startup(): dapl fabric is not available and fallback fabric is not enabled

[9] MPI startup(): dapl fabric is not available and fallback fabric is not enabled

[11] MPI startup(): dapl fabric is not available and fallback fabric is not enabled

[12] MPI startup(): dapl fabric is not available and fallback fabric is not enabled

[ANSYS_MMadore]

Can you please try using a different mpi or interconnect? Try -mpi=intel2019 if that does not work try using ethernet -pethernet rather than -pinfiniband, as it appears to be an IB issue at first glance.