Titan' supercomputer is world's most powerful

A new supercomputer called Titan, which uses microchips more usually used for videogaming to crunch numbers for climate studies, models of advanced materials and alternatives to petrol, has claimed the title of the world’s most powerful computer.

The machine, built by Cray at the US government’s Oak Ridge National Laboratory in Tennessee, has seized the top spot in the Top500, a closely-watched global league of the fastest supercomputers.

It is 10 times more powerful than the lab’s last supercomputer, Jaguar, which led the world as recently as 2009.

Titan was measured at 17.59 petaflops – or 17.59 thousand trillion calculations per second – beating the previous record of 16.32 petaflops, held by Sequoia, a supercomputer at Lawrence Livermore National Laboratory in California, which simulates nuclear attacks. It had reclaimed the crown for the United States earlier this year from the K supercomputer in Japan.

The new champion contains almost 19,000 processing nodes and 710 terabytes of memory. As well as a 16-core AMD CPU, each node contains an Nvidia GPU accelerator, a specially-adapted version of processor technology originally developed for the video gaming market.