Oak Ridge Today

Supercomputers: China’s Tianhe-2 still No. 1, ORNL’s Titan stays No. 2

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Jeff Nichols and Titan at ORNL

Jeff Nichols, associate director for computing and computational sciences at Oak Ridge National Laboratory, in front of Titan, which was the world’s fastest supercomputer in November 2012 but is now ranked No. 2. (Photos courtesy of ORNL/File photo October 2013)

 

For the fifth consecutive time, Tianhe-2, a supercomputer developed by China’s National University of Defense Technology, has retained its position as the world’s number one system, according to the 45th edition of the twice-yearly TOP500 list of the world’s most powerful supercomputers. Tianhe-2, which means Milky Way-2, led the list with a performance of 33.86 petaflop/s (or quadrillions of calculations per second) on the Linpack benchmark.

At number two was Titan, a Cray XK7 system installed at the U.S. Department of Energy’s Oak Ridge National Laboratory. Titan, the top system in the United States and one of the most energy-efficient systems on the list, achieved 17.59 petaflop/s on the Linpack benchmark.

The only new entry in the Top 10 supercomputers on the latest list is at number seven—Shaheen II is a Cray XC40 system installed at King Abdullah University of Science and Technology, or KAUST, in Saudi Arabia. Shaheen II achieved 5.536 petaflop/s on the Linpack benchmark, making it the highest-ranked Middle East system in the 22-year history of the list and the first to crack the Top 10. [Read more…]

Chinese supercomputer stays No. 1, Titan at ORNL still No. 2

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Jeff Nichols and Titan at ORNL

Jeff Nichols, associate director for computing and computational sciences at Oak Ridge National Laboratory, in front of Titan, which was the world’s top supercomputer in November 2012 but is now ranked No. 2. (Photo courtesy of ORNL)

 

For the fourth consecutive time, Tianhe-2, a supercomputer developed by China’s National University of Defense Technology, has retained its position as the world’s number one system. Meanwhile, Titan at Oak Ridge National Laboratory, which was the top supercomputer in November 2012, remains number two.

Tianhe-2 is capable of performing at 33.86 petaflops, or 33.86 quadrillions of calculations per second, on a benchmark test known as Linpack.

The rankings are from the 44th edition of the twice-yearly TOP500 list of the world’s most powerful supercomputers, which was announced Monday in Mannheim, Germany; Berkeley, California; and Knoxville. Tianhe-2 has been in the top spot four consecutive times, and Titan has been number two each time. [Read more…]

Chinese supercomputer bumps ORNL’s Titan from No. 1 spot

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Tianhe-2 Lights

Lights on the Chinese Tianhe-2 supercomputer, which has a theoretical peak that is twice as fast as the Titan supercomputer at Oak Ridge National Laboratory. (Photo courtesy Jack Dongarra)

A Chinese supercomputer has bumped the Titan supercomputer at Oak Ridge National Laboratory from the No. 1 spot on a semiannual ranking of the world’s most powerful supercomputers.

The Tianhe-2, which was developed by China’s National University of Defense Technology, is capable of 33.86 petaflops, or more than 33,000 trillion calculations per second.

Now ranked No. 2, Titan was able to perform 17,000 trillion calculations per second, or 17.59 petaflops, according to the list published in November. [Read more…]