The overall system, which cost more than $1 million, consists of eight p655 machines, each with eight 1.5GHz Power4+ processors, and one p690 with 32
1.7GHz Power4+ processors, according to IBM and the university.
The p690 runs a simulation of the Earth's ocean, while the p655 systems model the Earth's land, atmosphere and sea ice, said Charlie Zender, assistant
professor of Earth system science at the university. One of the p655 systems shares data among the individual simulations.