Is there a way to let a specific user have high priority in up to X cores concurrently ?
Could you please give us a more background and goal of this use case.
Short answer based on the query would be advanced reservation.
The use case:
Suppose a user buys a node, and we join that node to the HPC.
We would like to give that user a higher priority since he/she contributed a node.
One option is to give him priority to ‘his’ node. But another option, which we prefer, is to disregard the actual node, and just give that user priority over x cores in the whole pool, where x is the number of cores that his contributed node has.
Please check the PBS Professional Adminstration guide for server and queue limits.