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The Oak Ridge National Laboratory officially turned on the switch for its new supercomputer, Titan, just in time to claim the title of "World's Fastest Supercomputer" by Top500. This marks the 20th year for Tip500 and its 40th list.
Titan is a Cray XK7 system that hit 17.59 Petaflop/s (quadrillions
of calculations per second) on the Linpack benchmark. It features 560,640 processors, including 261,632 Nvidia K20x accelerator cores.
The former No. 1 supercomputer is Sequoia. Sequoia which is an IBM BlueGene/Q system. It's installed at the Department of Energy’s National Nuclear Security Administration at the Livermore National Laboratory.
Sequoia achieved 16.32 petaflop/s on the Linpack benchmark using 1,572,864 cores. Sequoia is the first system with one million or more cores.
Another former No. 1 on the Top500 list is Japan's K computer. It reached 10.51 Pflop/s on the Linpack benchmark using 705,024 SPARC64 processing cores.