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Thursday, November 20, 2014 - 22:15

L-CSC Emerges as the Most Energy-Efficient Supercomputer in the World

New Orleans, LA, USA; November 20, 2014 -- A new supercomputer, L-CSC from the GSI Helmholtz Center, emerged as the most energy-efficient (or greenest) supercomputer in the world, according to the 16th edition of the twice-yearly Green500 list. The L-CSC cluster was the first and only supercomputer on the list to surpass 5 gigaflops/watt (billions of operations per second per watt). Like so many of the most energy-efficient supercomputers in the world over the past few years, L-CSC is a heterogeneous supercomputer that is powered by GPU accelerators, namely AMD FirePro™ S9150 GPUs. It marks the first time that a supercomputer using AMD GPUs has held the top spot.

In fact, the top three slots of the Green500 were powered by three different accelerators with number one, L-CSC, being powered by AMD FirePro™ S9150 GPUs; number two, Suiren, powered by PEZY-SC many-core accelerators; and number three, TSUBAME-KFC, powered by NVIDIA K20x GPUs. Beyond these top three, the next 20 supercomputers were also accelerator-based.

L-CSC achieved the first position on the November 2014 Green500 List with an impressive 5.27 gigaflops per watt. This system used Intel Ivy Bridge CPUs, AMD FirePro GPUs, and an energy-efficient software design to achieve this feat. TSUBAME-KFC, which was number one over the previous two editions of the Green500, came in third in this edition of the Green500. TSUBAME-KFC was the first supercomputer to have broken the 4 gigaflops/watt barrier. Finally, Suiren, a supercomputer from the High Energy Accelerator Research Organization/KEK in Japan, occupied the second spot between L-CSC and TSUBAME-KFC at 4.95 gigaflops per watt. Like L-CSC and TSUBAME-KFC, Suiren used Intel Ivy Bridge CPUs, but coupled them with many-core accelerators from PEZY-SC. These many-core accelerators consist of 1,024 independent processor cores.

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News
Monday, June 30, 2014 - 15:20

The June 2014 release of the Green500 list shows an increasing trend of heterogeneous supercomputing systems at the top of the list. Now the top 17 spots of the list are occupied by heterogeneous computing systems, securing six more spots at the top over the previous list, a 55% increase. A heterogeneous supercomputing system is one that uses computational building blocks that consist of two or more types of “computing brains.” These types of computing brains include traditional processors (CPUs), graphics processing units (GPUs), and co-processors. Of the top 17 spots,

  • The first 15 systems are accelerated with NVIDIA Kepler K20 GPUs, coupled with Intel Xeon CPUs, including TSUBAME-KFC at number 1.
  • The number 16 system, Shadow, is accelerated with Intel Xeon Phi co-processors and coupled with Intel Xeon CPUs.
  • The number 17 system, SANAM, is accelerated with AMD FirePro S10000 GPUs, coupled with Intel Xeon CPUs

While the above results might lead one to believe that heterogeneous systems permeate throughout the Green500 list, they are only prevalent at the top end of the list. Of the 500 ranked systems, only 64 of them are heterogeneous while the other 436 are homogeneous and contain only one type of brain, that is, CPU brains. The total number of heterogeneous systems on the list remains relatively unchanged from the November 2013 list, as does their overall share of performance. The average energy efficiency of these systems, when measured in millions of floating-point operations per second per watt, or (MFLOPS/watt) is 1,938 MFLOPS/watt, whereas it is only 743.32 MFLOPS/watt for the measured homogeneous systems. As a result, heterogeneous systems dominate the top end of the list. So, perhaps the old adage of “two heads being better than one,” or in this case, “two types of computing brains being better than one” appears to hold.

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Thursday, November 21, 2013 - 03:11

The November 2013 release of the Green500 list was announced today at the SC|13 conference in Denver, Colorado, USA. Continuing the trend from previous years, heterogeneous supercomputing systems totally dominates the top 10 spots of the Green500. A heterogeneous system uses computational building blocks that consist of two or more types of “computing brains.” These types of computing brains include traditional processors (CPUs), graphics processing units (GPUs), and co-processors. In this edition of the Green500, one system smashes through the 4-billion floating-point operation per second (gigaflops) per watt barrier.

TSUBAME-KFC, a heterogeneous supercomputing system developed at the Tokyo Institute of Technology (TITech) in Japan, tops the list with an efficiency of 4.5 gigaflops/watt. Each computational node within TSUBAME-KFC consists of two Intel Ivy Bridge processors and four NVIDIA Kepler GPUs. In fact, all systems in the top ten of the Green500 use a similar architecture, i.e., Intel CPUs combined with NVIDIA GPUs. Wilkes, a supercomputer housed at Cambridge University, takes the second spot. The third position is filled by the HA-PACS TCA system at the University of Tsukuba. Of particular note, this list also sees two petaflop systems, each capable of computing over one quadrillion operations per second, achieve an efficiency of over 3 gigaflops/watt, namely Piz Daint at Swiss National Supercomputing Center and TSUBAME 2.5 at Tokyo Institute of Technology. Thus, Piz Daint is the greenest petaflop supercomputer on the Green500. As a point of reference, Tianhe-2, the fastest supercomputer in the world according to the Top500 list, achieves an efficiency of 1.9 gigaflops/watt.

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News
Friday, June 28, 2013 - 10:52

BLACKSBURG, Va., June 28, 2013 -- Today’s release of the Green500 List (http://www.green500.org/lists/green201306) shows that the top end of the list is again dominated by heterogeneous supercomputers, those that combine two or more types of processing elements together, such as a traditional processor or central processing unit (CPU) combined with a graphical processing unit (GPU) or coprocessor.

Two heterogeneous systems, based on NVIDIA’s Kepler K20 GPU accelerators, claim the top two positions and break through the three-billion floating-point operations per second (gigaflops or GFLOPS) per watt barrier. Eurora, located at Cineca, debuts at the top of the Green500 at 3.21 gigaflops/watt, followed closely by Aurora Tigon at 3.18 gigaflops/watt. The energy efficiency of these machines, manufactured by Eurotech, improves upon the previous greenest supercomputer in the world by nearly 30%. Two other heterogeneous systems, Beacon with an efficiency of 2.449 gigaflops/watt* and SANAM with an efficiency of 2.35 gigaflops/watt, come in at numbers 3 and 4 on the Green500. The former is based on Intel Xeon Phi 5110P coprocessors while the latter is based on AMD FirePro S10000 GPUs.

Rounding out the top five is CADMOS BlueGene/Q, which is based on a previously list-leading custom design of the IBM BlueGene/Q architecture with PowerPC-based CPU processors. In fact, the next swath of supercomputers down to No. 28 are dominated by IBM BlueGene/Q systems with one set at approximately 2.30 gigaflops/watt and another at approximately 2.18 gigaflops/watt. Overall, the greenest fifty systems are either heterogeneous systems, which incorporate accelerators (GPUs) or coprocessors, or custom BlueGene/Q systems. The exceptions are a pair of homogeneous systems at 40 and 41, which are the only homogeneous systems based on Intel’s new Ivy Bridge processors...

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News
Wednesday, November 14, 2012 - 11:32

Heterogeneous Systems Re-Claim Green500 List Dominance

SALT LAKE CITY, UT - November 14, 2012 - The latest Green500 List was released today (http://www.green500.org/lists/green201211) and the top spots on the list have been taken over by machines that combine commodity processors with coprocessors or graphics processing units (GPUs) to form heterogeneous high-performance computing systems.

With all eyes on the new TOP500 number one system, Oak Ridge National Labs' Titan, it was a system belonging to a neighbor at the University of Tennessee that debuted at the top of the November Green500 List. The National Institute for Computational Sciences' Beacon system has set the new energy efficiency bar at nearly two-and-a-half billion floating-point operations per second (gigaflops) per watt. Employing Intel's Sandy Bridge series of Xeon central processing units (CPUs) and four of Intel's Xeon Phi coprocessors per node Beacon achieved a peak 112,200 gigaflops of performance running the LINPACK benchmark while consuming only 44.89 kW of power.

The Intel Xeon Phi--"Knights Corner"-- is a 22nm multicore coprocessor featuring the world's first 3D Tri-Gate transistors. Like its GPU counterparts, the Intel Xeon Phi resides on a PCI Express board that plugs into a machine's expansion slots.

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News
Monday, September 10, 2012 - 09:16

Hello Green Community,

The Green500.org website is now accepting submitted content, e.g., papers, presentations, story links, etc. If you have something related to energy efficient supercomputing, or anything related to green computing or green anything! please share it with us and we might share it with the world.

Submit an item today!

The Green500 Team

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Tuesday, June 26, 2012 - 23:00
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Thursday, December 8, 2011 - 00:00
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Thursday, July 14, 2011 - 23:00
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Monday, July 4, 2011 - 23:00
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Wednesday, June 29, 2011 - 23:00

Growing Greenness in the Grassroots Green500

June 30, 2011 – The latest release of The Green500 List points to a rapidly increasing pace of greenness on the Green500 List. Of the ten greenest supercomputers in the world, two trends towards greener supercomputing have emerged: (1) aggregating many low-power processors a la IBM BlueGene/Q and the K Computer by Fujitsu at the RIKEN Advanced Institute for Computational Science and (2) using energy-efficient accelerators, typically from the gaming/graphics market, e.g., AMD Radeon GPU, NVIDIA Tesla Fermi GPU, Cell, and Intel Knights Corner, to complement the commodity CPUs from Intel and AMD.

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. Green500 founder Wu Feng notes that “The Green500 seeks to raise awareness in the energy efficiency of supercomputing, and in turn, drive energy efficiency as a first-order design constraint – one that is on par with performance or speed.” To measure this energy efficiency, the Green500 uses a metric defined as „millions of floating-point operations per second‟ (MFLOPS) divided by „watts‟ (W) or MFLOPS/W.

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Monday, January 10, 2011 - 00:00
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Thursday, December 16, 2010 - 00:00

Wu-chun Feng and Kirk Cameron

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Tuesday, November 9, 2010 - 00:00

On Thursday, November 18, the Green500 will host a Birds-Of-a-Feather session at SC|10 to bring together environmentally responsible supercomputing stakeholders. The session will be hosted by Wu-chun Feng and Kirk Cameron of Virginia Tech in room 389 from 12:15pm to 1:15pm.

read more >

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News
Monday, October 18, 2010 - 23:00

The updated run rules for the Green500 and Little Green500 list will be available on the website starting October 20th. The updated run rules can be found here. At the same time the submission portal for the November 2010 list will open.

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Tuesday, June 29, 2010 - 23:00

Jun 30, 2010 by Virginia Tech

With the latest release of The Green500 List, accelerator-based supercomputers now occupy the top eight slots of the Green500, where the fuel efficiency (or energy efficiency) of supercomputers is defined as millions of floating-point operations per second (MFLOPS) divided by watts (W) or MFLOPS/W. Accelerators refer to the use of dedicated hardware to perform computations faster than a traditional processor, also known as a central processing unit (CPU).

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Monday, May 3, 2010 - 23:00

May 04, 2010 by insiderHPC

In the inaugural episode of the Green HPC podcast series we will examine the issues that datacenter managers and system designers are facing with high performance computing systems of all sizes today. Even if you aren’t “green at heart,” there are very practical and compelling reasons why a growing awareness of energy use in your datacenter — how much, where it goes, and what it costs you — is critical to your success.

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News
Wednesday, December 2, 2009 - 00:00

by Newport Television, LLC

The orange of Syracuse University and blue of IBM, have teamed up to make green. Today, Syracuse University opened up a brand new environmentally friendly computer center unlike anything else in the world -- and one that may make it less expensive to operate your computer at home.

read more >

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News
Monday, November 30, 2009 - 00:00

by Steven Mackay

The sixth edition of the Green500 List shows a continuing improvement in energy efficiency among the world's fastest supercomputers. Three IBM QPACE (quantum chromodynamics parallel computing on the Cell) top the latest Green500 list, all tying for first place and all are located in Germany: Jülich Research Center, University of Regensburg, and University of Wuppertal.

read more >

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Wednesday, November 25, 2009 - 00:00

by Don Monroe

On November 19, three matching German supercomputers easily won the latest Green500 prize, which rewards not just raw computing power but energy efficiency. The machines, at the Research Center of Jülich and the universities of Regensburg and Wuppertal, were designed for high-energy-physics calculations as part of the "QPACE" project.

read more >

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Monday, November 23, 2009 - 00:00

Nov 23, 2009 by Greg Kline

Purdue University's student Cluster Challenge team at the SC09 supercomputing conference in Portland, Ore., was fast and green. The Purdue team in the competition, where teams of undergraduates from around the country pushed their student-run supercomputers to the maximum over three days, won the award for getting the most done on the least amount of power, organizers announced Thursday (Nov. 19). Purdue also won the power consumption award last year.

http://news.uns.purdue.edu/x/2009b/091123EvansChallenge.html

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Thursday, November 12, 2009 - 00:00

On Thursday, November 19, the Green500 will host a Birds-Of-a-Feather session at SC09 to bring together environmentally responsible supercomputing stakeholders. The session will be hosted by Wu-chun Feng and Kirk Cameron of Virginia Tech in room A107 at 12:15pm. The hour-long session will cover where the Green500 is and where it going. We invite all those interested in green supercomputing to join.

read more >

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News
Thursday, November 5, 2009 - 00:00

The Green500

Nov 05, 2009

The Green500 is getting a refresh. Since its 2007 debut, the Green500 has ranked only the energy efficiency of the world's 500 fastest performing supercomputers. Now, the Green500 is expanding the definition of a supercomputer to include a wider spectrum of the high-end computing world with the 'Little Green500' list and opening its doors to innovation with two new exploratory lists: the 'Open Green500' and 'HPCC Green500.'

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News
Thursday, September 17, 2009 - 23:00

by IBM

President Obama recognized IBM (NYSE: IBM) and its Blue Gene family of supercomputers with the National Medal of Technology and Innovation, the country's most prestigious award given to leading innovators for technological achievement...

read more >

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Sunday, November 16, 2008 - 00:00

The Green500

Nov 16, 2008

On Wednesday, November 19, at SC|08, the founders of the Green500 from Virginia Tech will host a Birds-of-a-Feather (BoF) session, centered around evolving the list to better serve the high-performance computing community. Being "green" has undergone a true revolution -- from being largely scoffed at in the early 2000s to being so important that being "green" has become a necessity rather than a luxury.

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News
Friday, November 14, 2008 - 00:00

The Green500 List announced today that Supermicro will become the title sponsor for the November 2008 and June 2009 lists of the Green500.

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News
Sunday, June 29, 2008 - 23:00

The inaugural Green500 was announced on November 15, 2007 at SC|07 with the most recent list announced on June 30, 2008. As a complement to the TOP500, the unveiling of the Green500 ushered in a new era where supercomputers can be compared by performance-per-watt.

This 3rd edition of the Green500 contains a plethora of interesting takeaways, of which the following five are most notable.

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News
Tuesday, February 5, 2008 - 00:00

Wu-chun Feng and Kirk W. Cameron

Feb 05, 2008

Dear Green500 List Stakeholders,

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