Visit additional Tabor Communication Publications
July 04, 2011
BLACKSBURG, Va., July 1 -- The newly released Green500 List (http://www.green500.org) shows a continuing rapid improvement in environmentally friendly supercomputers around the world, according to Wu Feng (http://www.cs.vt.edu/~feng/), list founder and Virginia Tech associate professor of computer science and electrical and computer engineering at Virginia Tech’s College of Engineering.
“Of the Top 10 greenest supercomputers in the world, two trends toward greener supercomputing are emerging: one is aggregating many low-power processors such as IBM’s BlueGene/Q and the K Computer by Fujitsu at the RIKEN Advanced Institute for Computational Science, and the other trend is using energy-efficient accelerators, typically from the gaming/graphics market to complement the commodity central processing units from Intel and Advanced Micro Devices,” Feng said.
The Green500 has ranked the energy efficiency of the world’s 500 fastest supercomputers since its debut in 2007, serving as a complement to the well-known supercomputer industry marker TOP500. The list was founded by Feng and Kirk W. Cameron (http://www.cs.vt.edu/~cameron/), associate professor of computer science. The Green500 measures energy efficiency using a metric defined as millions of floating-point operations per second divided by watts, or MFLOPS/W. The list is released twice a year, in June and in November.
“The Green500 seeks to raise awareness in the energy efficiency of super-computing, and in turn, drive energy efficiency as a first-order design constraint – one that is on par with performance or speed,” said Feng.
As in the November 2010 edition, an IBM Blue Gene/Q prototype supercomputer tops this edition of the Green500. However, the Blue Gene/Q prototype that tops this list – the Blue Gene/Q Prototype 2 -- differs from the one that topped the previous list -- Blue Gene/Q Prototype 1 -- in that the former delivers significantly better performance, but with the same number of processor cores and only a marginal increase in power consumption. The result is a 2,097 MFLOPS/W rating, the first supercomputer to surpass the 2,000 MFLOPS/W bar, according to Feng. Coming in at No. 6 on the Green500 list is the world’s fastest supercomputer, the K supercomputer from RIKEN in Japan. It also aggregates many low-power processors and is one of the greenest supercomputers in the world.
Among accelerator-based supercomputers, the greenest in the world is the DEGIMA Cluster, a self-built supercomputer from Nagasaki University in Japan. The DEGIMA Cluster is accelerated by Advanced Micro Devices /ATI Technologies Inc.’s Radeon graphics processing units (GPUs) on a thrifty supercomputing budget of approximately $500,000. Six additional accelerator-based machines round out the 10 greenest supercomputers in the world, three with GPU accelerators --including two from NVIDIA Corp. and one more from AMD/ATI -- and three with cell-based accelerators from IBM.
During the past six months, the average efficiency of measured systems on the Green500 has increased to 256 MFLOPS/W from 230 MFLOPSW, an improvement of 11 percent, Feng said. Additionally, the efficiency of the greenest supercomputer in the world improved by 25 percent to 2097 MFLOPS/W from 1684 MFLOPS/W, while the efficiency of accelerator-based systems on the Green500 has been just as dramatic, improving 23 percent to 707 MFLOPS/W from 573 MFLOPS/W.
“Seventy percent of the 20 greenest supercomputers are now accelerator-based,” Feng said, adding that such a statistic would have been unlikely when the Green500 List started four years ago.
The Green500 List is a grassroots venture, relying on sponsorships and individual contributions from volunteer staff comprised of Feng, Cameron and graduate students at the Virginia Tech College of Engineering. Serving as the present title sponsor for the Green500 is Supermicro Computer Inc.
Green500 List measures supercomputers not by their might, but by their consumption: http://www.vt.edu/spotlight/innovation/2011-01-10-wu/green500.html
Accelerator supercomputers dominate Green500 List’s Top 10: http://www.vtnews.vt.edu/articles/2010/12/120310-engineeering-green500.html
Source: Virginia Tech
In a recent solicitation, the NSF laid out needs for furthering its scientific and engineering infrastructure with new tools to go beyond top performance, Having already delivered systems like Stampede and Blue Waters, they're turning an eye to solving data-intensive challenges. We spoke with the agency's Irene Qualters and Barry Schneider about..
Large-scale, worldwide scientific initiatives rely on some cloud-based system to both coordinate efforts and manage computational efforts at peak times that cannot be contained within the combined in-house HPC resources. Last week at Google I/O, Brookhaven National Lab’s Sergey Panitkin discussed the role of the Google Compute Engine in providing computational support to ATLAS, a detector of high-energy particles at the Large Hadron Collider (LHC).
The Xeon Phi coprocessor might be the new kid on the high performance block, but out of all first-rate kickers of the Intel tires, the Texas Advanced Computing Center (TACC) got the first real jab with its new top ten Stampede system.We talk with the center's Karl Schultz about the challenges of programming for Phi--but more specifically, the optimization...
May 22, 2013 |
At some point in the not-too-distant future, building powerful, miniature computing systems will be considered a hobby for high schoolers, just as robotics or even Lego-building are today. That could be made possible through recent advancements made with the Raspberry Pi computers.
May 16, 2013 |
When it comes to cloud, long distances mean unacceptably high latencies. Researchers from the University of Bonn in Germany examined those latency issues of doing CFD modeling in the cloud by utilizing a common CFD and its utilization in HPC instance types including both CPU and GPU cores of Amazon EC2.
May 15, 2013 |
Supercomputers at the Department of Energy’s National Energy Research Scientific Computing Center (NERSC) have worked on important computational problems such as collapse of the atomic state, the optimization of chemical catalysts, and now modeling popping bubbles.
May 10, 2013 |
Program provides cash awards up to $10,000 for the best open-source end-user applications deployed on 100G network.
May 09, 2013 |
The Japanese government has revealed its plans to best its previous K Computer efforts with what they hope will be the first exascale system...
05/10/2013 | Cleversafe, Cray, DDN, NetApp, & Panasas | From Wall Street to Hollywood, drug discovery to homeland security, companies and organizations of all sizes and stripes are coming face to face with the challenges – and opportunities – afforded by Big Data. Before anyone can utilize these extraordinary data repositories, however, they must first harness and manage their data stores, and do so utilizing technologies that underscore affordability, security, and scalability.
04/15/2013 | Bull | “50% of HPC users say their largest jobs scale to 120 cores or less.” How about yours? Are your codes ready to take advantage of today’s and tomorrow’s ultra-parallel HPC systems? Download this White Paper by Analysts Intersect360 Research to see what Bull and Intel’s Center for Excellence in Parallel Programming can do for your codes.
In this demonstration of SGI DMF ZeroWatt disk solution, Dr. Eng Lim Goh, SGI CTO, discusses a function of SGI DMF software to reduce costs and power consumption in an exascale (Big Data) storage datacenter.
The Cray CS300-AC cluster supercomputer offers energy efficient, air-cooled design based on modular, industry-standard platforms featuring the latest processor and network technologies and a wide range of datacenter cooling requirements.