The machine, located at Oak Ridge National Laboratory in Tennessee, bumps the IBM-based Sequoia system down a notch with its performance of 17.59 petaflops per second.
Predictions that Oak Ridge National Laboratory's Titan supercomputer had become the most powerful machine in the world have turned out to be right.
The machine, powered by Nvidia graphics processors and Advanced Micro Devices computer chips, stole the No. 1 spot on the Top500's list from another U.S. machine, Lawrence Livermore National Laboratory's Sequoia.
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Sequoia, which uses processors from IBM, became the top computer in June with a performance of 16.32 petaflops a second. Titan beat that showing, sending Sequoia to second place on the list, with a result of 17.59 petaflops per second.
The computer, built by Cray, is operated in Tennessee as part of the Department of Energy's network of research labs. Researchers from academia, government labs, and various industries will be able to use Titan to research things such as climate change and alternative fuels.