China’s Tianhe-2 supercomputer, with a performance of 33.86 petaflops (Pflops), remains the world’s fastest system, the official Xinhua News Agency reported, citing the biannual Top500 list of supercomputers released on Monday.
Tianhe-2, developed by the National University of Defense Technology and deployed at the National Supercomputer Center in Guangzhou, has held the title since June 2013, the report said.
The computer is almost twice as fast as the next on the list, the US Department of Energy’s Titan, which has a performance of 17.59 Pflops.
Tianhe-2 “features a number of Chinese-developed components, including the TH Express-2 interconnect network, front-end processors, operating system and software tools”, the organizers of the Top500 list said in a statement.
Third on the list is Sequoia, installed at the US energy department’s Lawrence Livermore National Laboratory, with a performance of 17.17 Pflops. Japan’s K computer with a performance of 10.51 Pflop/s ranked fourth, followed by Mira with 8.59 Pflops, which is installed at the US energy department’s Argonne National Laboratory.
“There was little change among the ranking of the world’s top 10 supercomputers in the latest edition of the closely watched list,” the list organizers said.
The United States has a total of 233 systems on the latest list, down from 265 six months ago, while China has 76 systems, up from 63 on the previous list.
According to the Top500 list, the total combined performance of all 500 systems has grown to 274 Pflops, compared to 250 Pflops six months ago, the report said.
The Top500 list is considered one of the most authoritative rankings of the world’s supercomputers. It is compiled by experts from the United States and Germany.
In computing, a petaflops is one quadrillion, or a thousand trillion, calculations per second.
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