Failure in initializing endpoint on VSC4
Running an MPI-Job via sbatch delivers the following problem (here trying to run an experiment on MPI-ESM):
Error: Failure in initializing endpoint / n412-036.vsc4.prov.409974hfi_userinit: assign_context command failed: Device or resource busy
The reason is, that MPI Jobs with more than 96 tasks per node will fail just because there aren't more CPUs available.
To solve this problem reduce the tasks per nodes and try to run the job again.
See also: https://www.hlrn.de/doc/display/PUB/MPI+Jobs+with+more+than+40+%2896%29+tasks+per+node+failing