Slowness on /scratch Filesystem

We are actively investigating intermittent slowness on the shared /fs/scratch filesystem.

Cannot use mpiexec/mpirun from OpenMPI in an interactive session

Category: 
Owens
Pitzer
Software
Resolution: 
Resolved
Workaround Link: 
Workaround Link
Affected Software: 
OpenMPI

We found mpiexec/mpirun from OpenMPI can not be used in an interactive session (launched by sinteractive) after upgrading Pitzer and Owens to Slurm 20.11.4. Please use srun only while you use OpenMPI in an interactive session.