No change for top supercomputers

China's Tianhe-2 is still world's most powerful supercomputer

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No change for top supercomputers The top 5 supercomputers stayed the same in the 42nd edition of the TOP500 list.
By  Mark Sutton Published  November 19, 2013

The latest edition of the Top500 list of the most powerful supercomputers in the world has been released, showing no change in the order of the five fastest systems.

The list, which ranks high performance computing systems using the Linpack benchmark, shows China's National University of Defense Technology's Tianhe-2 supercomputer is still the fastest in the world, with a performance of 33.86 petaflop/s (quadrillions of calculations per second).

The US Department of Energy's Titan, a Cray XK7 system, was second, with a score of 17.59 Pflop/s on the Linpack benchmark, and the DOE's Sequoia, an IBM BlueGene/Q system, was in third place again, with 17.17 Pflop/s.

The highest new entrant on the list was Piz Daint, a Cray XC30 system installed at the Swiss National Supercomputing Centre (CSCS) in Lugano, Switzerland, which was ranked sixth. The Piz Daint system is the most powerful in Europe, with a score of 6.27 Pflop/s on the Linpack benchmark, and the system is also the most energy efficient in the top ten, a total of 2.33 MW and delivering 2.7 Gflops/W.

From the Middle East, three systems made the list, all in Saudi Arabia. The SANAM system of King Abdulaziz City for Science and Technology ranked 59th, with a performance of 532.6 Teraflops/s. Saudi Aramco's Makman system was in 70th place, rated at 441.8 Teraflops/s maximum performance, and King Abdullah University of Science and Technology's Shaheen system, with a maximum performance of 190.9 Teraflops/s, was 214th on the list.

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