Is there a way to request full machines? At my department I have the problem that when running a large job, some processes get allocated to shared machines. I am not sure why but it happens that processes on those shared machines are extremely slowed down, possibly because of what the other user is doing.
I want to avoid this and so ideally I would be able to request not to share nodes when invoking qsub, is this possible?
We are using SGE, and different nodes have different number of cores so I can't just use ppn=4.