I would like to buy a cluster (30-60 nodes) for work and install linux on it. The cluster should have a queue system like PBS, for instance. It should also be capable of doing parallel computation. I myself don't know too much about configuring clusters and maintaining them, but our IT guys know even less and I prefer to be the one in charge with these machines.
My question is: is there some simple (software) way to save power on these machines by turning off or putting nodes to sleep while no job is running? And could be that connected to the queue manager?
Sorry for not being more clear, but it's the first time I have to be sys admin on anything with more than two processors.