I'm running Darwin on a quad:

$uname -a

Darwin $HOST 9.5.0 Darwin Kernel Version 9.5.0: Wed Sep 3 11:29:43 PDT 2008; root:xnu-1228.7.58~1/RELEASE_I386 i386

Is it possible to distribute a job over all four CPUs? I have a resource-intensive process running on only 1 CPU; the priority is set to PRIO_MIN to compete with other hungary system processes ; - (