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Posted by on Nov 30, 2012 in Hardware, Technology |

Titan, the world’s fastest supercomputer

Titan, the world's fastest supercomputer

True to the six-monthly organization TOP500 announced the new list of supercomputers at SC12 supercomputing conference held in Salt Lake City, United States. The Titan takes control with a staggering 17.59 Petaflop/s [quadrillion (American scale) calculations per second].

With just a little advantage, Titan gets ahead of Sequoia , 16.32 Petaflop / s IBM is now second. is based on a hybrid architecture of half a million Opteron cores and NVIDIA accelerators. It was developed by the company Cray supercomputing. It’s actually an upgrade Jaguar supercomputer already once occupied the No. 1, but Titan is 10 times more potent.

The third is K, Fujitsu SPARK64 with 700,000 cores, 10 000 Petaflop/s located in Japan. The 4th is another BlueGene/Q of IBM and the 5th, the first one located in Europe (Germany). The brilliant Chinese supercomputer Tianhe (Sky River) who recently dazzled the world has already fallen to eighth place.

IBM still holds the #2, Sequoia and includes six top ten supercomputers. Technology is dominated by Intel processors with 60%, followed by AMD with 12% and IBM with 10%.

It is very striking that a total of 62 systems use graphics accelerators or co-processors, including the new Titan and Tianhe using NVIDIA and several others that accelerate performance with the new Intel Xeon processors Phi.

As for operating systems, Linux share is brutal. 96% of supercomputers use Linux.

Although improving, remains tremendous energy expenditure. The first three are around or above 10 megawatts, the equivalent of thousands of homes. The BlueGene / Q are the most efficient. Although they have many cores, they consume little.

The overwhelming majority are in the U.S. with 251 systems installed. Asia has more than 123 Europe 105. China is the second most supercomputers installed (72). The Department of Energy U.S. DOE has the number 1, 2 and 4, although in different facilities.

The TOP500 organization does not define what a supercomputer. Simply include those who publish the result of a benchmark called Linpack, based on solving linear equations.

Perhaps most revealing is the Roadrunner. He was the first to reach 1 Petaflop/s for 4 years. Today at 23. With this new list, celebrating the twentieth anniversary TOP500. Supercomputers that years ago were powerful today would resemble a laptop. The pace of improvement is brilliant. The road to exaflop/s is served.

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