With the new OS version comes a small problem with the standard openmpi
implementation. With "module load mpi/openmpi-x86_64" you use the standard openmpi
from centos. If your job is crashing with "SEGVAULT" you have to add a
parameter for your mpirun. If possible use "ucx" as this is the new standard protokoll in MPI.
There are two ways to achieve this:
You can create a file in your homedirectory with one line "pml=ob1"
- You can add the parameter to your mpirun commando for example "mpirun --mca pml ob1 foo"
or "mpirun --mca pml ucx foo"
(foo := name of your programm)