The Nice Police

[Richard Sutton]

We have a few over-zealous students on our subnet that will submit as many as
24 (!) simulations at once. I've explained to them why they should either nice 
their jobs or have crontab submit them in the wee hours, but they continue to
submit numerous jobs during business hours. Does anyone have a method of
automatically detecting when a user has more than x jobs running, then re-
nicing them? Or a method that will renice all jobs after more than x total
are running for ALL users...

Thanks in Advance,

Rich Sutton