The cluster resource manager Torque typically allocates compute nodes on an exclusive basis. However, when you have a lot of small jobs (like we do) running against multi-core compute nodes, this can result in a lot of wasted resources. Is there any way to configure Torque to allow non-exclusive allocation of the cores on a compute node?
(These jobs are all embarrassingly parallel, so we aren't concerned about contention for the shared network resource. We can't switch schedulers as our customer's job-scripts are all in PBS/Torque.)