Cray has sold an XT3 supercomputer to the U.K.'s Atomic Weapons Establishment.
"The new Cray supercomputer will enable us to explore even more complex mathematical models in three dimensions," said Brian Maskell, manager for future systems at AWE, in a statement. The machine's peak performance--typically a higher number than its sustained performance--will be 40 trillion calculations per second, Cray said. AWE is responsible for building and maintaining the country's nuclear weapons.