> > Do you invoke mpirun from **inside** the container? > > IIRC, mpirun is generally invoked from **outside** the container, could > you try this if not already the case? > > > The error message is from SLURM, so this is really a SLURM vs > singularity issue. > > What if you > > srun -N 2 -n 2 hostname > > instead of > > mpirun ...
I checked with SchedMD and the combination of commands that worked are this: salloc -t 0-04:00 -A ourgroup --nodes=2 --ntasks=4 mpirun -n 4 singularity exec openfoam10.sif /bin/bash -l -c 'source /opt/openfoam10/etc/bashrc&&simpleFoam -parallel' There are probably other ways to get this to work but the above did the trick. Thanks for the suggestion. Rob >
