IBM Dominates List of Green Supercomputers
The latest rankings from the Green500 list of the world's greenest high-performance computers (HPCs) finds IBM holding sway as the leading provider of the most energy-efficient supercomputers in the world. The company holds 18 out of 20 of the top spots, including the top ranking for its BladeCenter QS22 Cluster at the University of Warsaw's Interdisciplinary Centre for Mathematical and Computational Modeling. Similar configurations of that HPC also landed in a two-way tie for 2nd place as well as 4th place. Those rankings, coupled with IBM's Blue Gene/P Solution HPC system hold on 14 of the top 20 positions in the ranking, means that IBM has dominated the list of the greenest supercomputers in the world. The remaining two HPCs in the top 20 included the GRAPE-DR accelerator Cluster at the National Astronomical Observatory of Japan in fifth place, and the NEC HPC 140Rb-1 Cluster at the University of Stuttgart, Germany, in 20th place. The Green500 is a twice-yearly ranking of the most energy-efficient HPCs around the globe. The list, which measures megaflops (the number of computing operations per second) per watt used, parallels the Top500, a list of the most powerful HPCs regardless of energy use. Rankings on this year's list find a muddled combination of performance and energy efficiency: the number one most-powerful HPC on the list, an IBM BladeCenter QS22/LS21 Cluster at the DOE's Los Alamos National Laboratories, ranks fourth on the Green500 list. The University of Warsaw's top-ranked energy-efficient computer places a lowly 422 on the Top500 for overall computing performance. Some key trends from the makers of the Green500 list: • The overall efficiency of supercomputers continues to improve. While the supercomputers on the Green500 are collectively consuming more power, they are using the power more efficiently than before. In a statement celebrating the company's victories, IBM's vice president of deep computing, David Turek, said, "Modern supercomputers can no longer focus only on raw performance. To be commercially viable these systems most also be energy efficient. IBM has a rich history of innovation that has significantly increased energy efficiency of our systems at all levels of the system that are designed to simultaneously reduce data center costs and energy use." The list of the top 20 greenest HPCs is below; the full list is available online at Green500.org. Green500 Rank 1 2 2 4 5 6 7 7 7 7 7 7 7 14 15 16 17 18 19 20
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