Total cranks up computing power to see more clearly below earth's surface

Oil company Total has almost tripled the performance of Pangea, a supercomputer it uses for analyzing subsurface imaging in search of new oilfields. Pangea's performance is now 6.7 petaflops (floating-point operations per second), up from 2.3 petaflops, the French company said Tuesday. That's enough to put it among the 10 fastest supercomputers in the world, according to Total, which based its claim on rankings published last November by Top500.org, the international supercomputer ranking organization. Total's claim is based on the assumption that no other computer has been similarly upgraded in the meantime, something we won't know for sure until the next edition of the list is published in June. But there's another wrinkle that might cast doubt on Total's top 10 status, and that's what exactly the 2.3 petaflop figure represents.