China retains supercomputing crown in latest Top 500 ranking

The U.S. is close to an all-time low number of machines in the list

A supercomputer developed by China's National Defense University remains the fastest publically known computer in the world while the U.S. is close to an historic low in the latest edition of the closely followed Top 500 supercomputer ranking, which was published on Monday.

The Tianhe-2 computer, based at the National Super Computer Center in Guangzhou, has been on the top of the list for more than two years and its maximum achieved performance of 33,863 teraflops per second is almost double that of the U.S. Department of Energy's Cray Titan supercomputer, which is at Oak Ridge National Laboratory in Tennessee.

The IBM Sequoia computer at Lawrence Livermore National Laboratory in California is the third fastest machine, and fourth on the list is the Fujitsu K computer at Japan's Advanced Institute for Computational Science. The only new machine to enter the top 10 is the Shaheen II computer of King Abdullah University of Science and Technology in Saudi Arabia, which is ranked seventh.

The Top 500 list, published twice a year to coincide with supercomputer conferences, is closely watched as an indicator of the status of development and investment in high-performance computing around the world. It also provides insights into what technologies are popular among organizations building these machines, but participation is voluntary. It's quite possible a number of secret supercomputers exist that are not counted in the list.

With 231 machines in the Top 500 list, the U.S. remains the top country in terms of the number of supercomputers, but that's close to the all-time low of 226 hit in mid-2002. That was right about the time that China began appearing on the list. It rose to claim 76 machines this time last year, but the latest count has China at 37 computers.

While there are few major changes in the top positions in the ranking, the aggregate computing power of the 500 companies continues to advance, but the pace is slowing. The current list represents 361 petaflops per second of performance, up 31 percent on this time last year, but a noticeable slowdown in growth, according to the authors of the study.

The rise of the use of graphics processors, so-called GPU computing, is reflected in the top 10. Two machines used Nvidia K20x processors: the second-ranked Cray Titan and sixth-ranked Cray Piz Daint, which is installed at the Swiss National Supercomputing Centre.

But Intel's Xeon E5 chip continues to outrank all others. Taken together, three generations of the chip (SandyBridge, IvyBridge and Haswell) are in 80 percent of systems, representing 67 percent of total performance.

The Top 500 list is compiled by supercomputing experts at the University of Mannheim, Germany; the University of Tennessee, Knoxville; and the Department of Energy's Lawrence Berkeley National Laboratory.

Martyn Williams covers mobile telecoms, Silicon Valley and general technology breaking news for The IDG News Service. Follow Martyn on Twitter at @martyn_williams. Martyn's e-mail address is martyn_williams@idg.com

Join the newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection

Tags U.S. Department of EnergysupercomputersIBMUniversity of Tennesseehardware systemsKing Abdullah University of Science and TechnologyChina National Defense UniversityCraySwiss National Supercomputing CentreFujitsuHigh performanceUniversity of MannheimAdvanced Institute for Computational Science

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Martyn Williams

IDG News Service
Show Comments

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Matthew Stivala

HP OfficeJet 250 Mobile Printer

The HP OfficeJet 250 Mobile Printer is a great device that fits perfectly into my fast paced and mobile lifestyle. My first impression of the printer itself was how incredibly compact and sleek the device was.

Armand Abogado

HP OfficeJet 250 Mobile Printer

Wireless printing from my iPhone was also a handy feature, the whole experience was quick and seamless with no setup requirements - accessed through the default iOS printing menu options.

Azadeh Williams

HP OfficeJet Pro 8730

A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.

Andrew Grant

HP OfficeJet Pro 8730

I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.

Ed Dawson

HP OfficeJet Pro 8730

As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.

Michael Hargreaves

Windows 10 for Business / Dell XPS 13

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?