National Supercomputer Center Archives

ORNL’s Titan drops to number four on list of world’s most powerful supercomputers

Posted at 10:06 am June 19, 2017
By John Huotari Leave a Comment

The Titan supercomputer at Oak Ridge National Laboratory was once ranked as the world’s most powerful supercomputer, but it is now ranked number four. (Photo courtesy of ORNL)

Note: This story was updated at 10:40 a.m.

Once the world’s most powerful supercomputer, Titan at Oak Ridge National Laboratory dropped to number four on a list of the world’s most powerful supercomputers released Monday.

Titan, a Cray XK7 system, was bumped from the number three spot by the upgraded Piz Daint, a Cray XC50 system installed at the Swiss National Supercomputing Centre.

China continues to have the world’s two most powerful supercomputers.

The TOP50 List of the world’s most powerful supercomputers is based on a benchmark test known as Linpack. The list is released twice each year, once in June and again in November. The 49th edition of the TOP500 List was released Monday in conjunction with the opening session of the ISC High Performance conference, which is taking place this week in Frankfurt, Germany. [Read more…]

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

Posted at 12:32 pm June 17, 2013
By John Huotari 3 Comments

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…]

Theoretically twice as fast, Chinese supercomputer could bump Titan from No. 1 spot

Posted at 3:04 pm June 5, 2013
By John Huotari 15 Comments

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 new Chinese supercomputer is theoretically twice as fast as the Titan supercomputer at Oak Ridge National Laboratory, and it could bump Titan from the No. 1 spot on the Top 500 list that will come out on June 17, one of the co-authors of the list said Wednesday.

Titan, which reached the No. 1 spot on the semiannual Top 500 list in November, has a theoretical peak of 27 petaflops, or roughly 27,000 trillion calculations per second.

The Chinese supercomputer, Tianhe-2, also known as TH-2 or Milkyway-2, has a theoretical peak of 54.9 petaflops. It also has about twice as much memory as the Titan system, said Jack Dongarra, a Top 500 co-author, University of Tennessee faculty member, and distinguished research staff member in ORNL’s Computer Science and Mathematics Division. [Read more…]

ORNL’s Titan drops to number four on list of world’s most powerful supercomputers

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

Theoretically twice as fast, Chinese supercomputer could bump Titan from No. 1 spot

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