Effectively utilizing multiple processors for arbitrary work loads is a hard problem. Communication overhead can be come the limiting factor in processing speed. Intel's Larabee project is delayed as they try to solve the memory bandwidth puzzle. They can put 40 to 100 cores on a chip, but find them starved for data because access times for general purpose memory haven't kept up with CPU speeds.
-- Steve ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
