Job queues and parallel job environments at Numerikserver

Preliminary notes about the architecture of the Numerikserver

SGE knows about several special environments for parallel jobs types, the PE. Each process of a parallel job is bound to one slot. In the current setup, a slot corresponds to a processor core.
Parallel jobs need to specify a corresponding parallel environment within their bach job script.
The Numerikserver divides into 21 clusters, each containing nodes with a specific hardware architecture.

Queues allow to classify jobs with respect to their run-time (wall clock time).
Parallel Environments (PE) allow to classify jobs with respect their type of parallelism.

IMPORTANT NOTE: Depending on the run-time requirements of your job, the appropriate queue will be automatically chosen. No need to specify the queue explicitly.
short: 12 h
medium:72 hours (3 d)
long: 220 hours (9 d 4 h)
verylong (only on three clusters): 1344 hours (56 d)

General syntax defining a PE: [mp|ompi]<clusterid|*>_<noprocs-per-node> [number_of_proceses|range_number_of_processes]
(mandatory arguments in [] and optional arguments in <> given)
Several examples:
- SMP/MPI job intranode (request 9 slots on a single node within any cluster): mp 9
- MPI job internode (request 18 slots on a variable number of nodes residing in any cluster; NB: all nodes reside within the same cluster) : ompi 18 or ompi* 18
- MPI job internode on a specific cluster (request 20 slots on a variable number of nodes residing in cluster 4): ompi4 20
- MPI job internode with explicit partitioning (request in total 32 slots, on each node spending 8 slots): ompi*_8 32