-N, --nodes=N

Set the number of nodes to assign to the job. Tasks will be distributed evenly across the allocated nodes, unless the per-resource options (noted below) are used with submit, run, or bulksubmit. It is an error to request more nodes than there are tasks. If unspecified, the number of nodes will be chosen by the scheduler.

-x, --exclusive

Indicate to the scheduler that nodes should be exclusively allocated to this job. It is an error to specify this option without also using --nodes. If --nodes is specified without --nslots or --ntasks, then this option will be enabled by default and the number of tasks or slots will be set to the number of requested nodes.