max_total_procs

To limit the number of simultaneously running mprun processes allowed on all nodes in a partition or in all partitions, set the max_total_procs attribute in a specific node context or in the general Partition context.

[node0]
P(part0):: set max_total_procs=10[node0] P(part0):: 

You can set max_total_procs if you want to limit the load on a partition. By default, max_total_procs is unset.

The CRE does not impose any limit on the number of processes allowed on a node.