...
Warning about /tmp on a networked filesystem
The warning about /tmp is only appears when /tmp is a network filesystem (e.g. Lustre or NFS). This is Open MPI producing produces this warning and happens because HTCondor bind mounts /tmp and /var/tmp for its jobs to its scratch area and we currently use Lustre for the scratch areas.
...
A way to remove this warning and hopefully also prevent OpenMPI Open MPI from using a network filesystem for its shared memory backup file is to do something like the following
...