US is back at the top after 3 years, reclaiming the fastest supercomputer title from Japan. Clocking a performance of 16.32 petaflops, IBM’s Blue Gene Q-class Sequoia is the worlds fastest supercomputer, according to  to the latest TOP500 rankings released today. The Sequoia is known to be 55 percent faster than K, which clocked 10.51petaflops or trillions of floating-point calculations per second. The Sequoia supercomputer uses more than 1.5m processor cores, consuming 7.9 MW and the temperatures can can reach as high as 113F, or 45C.

The supercomputers are used in visualizing 3D data sets from fields, including Earth science, astronomy and medicine. The Sequoia is also known to be the most power efficient of all the computers giving efficiency of approximately 2.07 teraflops/W to K’s 0.83 teraflops/W.

The June 2012 top ten Supercomputers:

1. IBM: Sequoia (DOE Lawrence Livermore National Laboratory – USA)
2. Fujitsu: K (RIKEN Advanced Institute for Computational Science – Japan)
3. IBM: Mira (DOE/SC/Argonne National Laboratory – USA)
4. IBM: SuperMUC (Leibniz Rechenzentrum – Germany)
5. NUDT: Tianhe-1A (National Supercomputing Center in Tianjin – China)
6. Cray: Jaguar (DOE/SC/Oak Ridge National Laboratory – USA)
7. IBM: Fermi (CINECA – Italy)
8. IBM: JuQUEEN (Forschungszentrum Juelich – Germany)
9. Bull: Curie thin nodes (CEA/TGCC-GENCI – France)
10. Dawning: Nebulae (National Supercomputing Centre in Shenzhen – China)

Source: guardian

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