Khanna said that the PS3 was an ideal tool for his research due to the fact that it can run Linux, and that its powerful Cell processor - which is also used by IBM's fastest supercomputer Blue Gene/P - is more than capable of doing the computations needed to solve the mystery of the gravity waves.
Prior to getting eight PS3 units, Khanna was used supposed to get a supercomputer. But since a supercomputer cost US$ 5,000 in grant money, the scientist figured that he can save more by buying eight 60GB PS3 units (worth US$3,200) and clustering them together, calling them his "gravity grid".
Khanna was able to petition Sony to grant him the PS3 units, which were given to him free of charge. "Once I was able to get to the point that I had this kind of performance from a single PS3, I think that's when Sony started paying attention," Khanna said.
So how are the PS3 units - the gravity grid - faring in his research? "I don't have to use that supercomputer anymore, which is a good thing," he said. It tells a lot on how powerful the PS3 can get.
