The Green500 List - November 2008
This 4th edition of the Green500 List contains a plethora of interesting takeaways, of which the following are notable accomplishments in the awareness of green supercomputing.
- The 500MFlops/Watt barrier is surpassed.
- Four new IBM QS22 systems take over the top four spots on the Green500. Cell-based systems, comprising the top 7 spots, are pacing the energy-efficient supercomputing community with an increase in energy efficiency of 17% over the last edition released in June.
- Over 50% of the top supercomputers are now reporting their energy usage.
- In this edition, 276 of the top 500 sites reported their power usage along with their performance, marking an 19.5% increase over the last release. Further, this increase in reporting encompasses 18% more hardware manufacturers, a benefit to HEC users evaluating future purchases with energy-efficiency in mind.
Listed below are the The Green500's Top 10 most energy-efficient supercomputers in the world as of November 2008.
| Green500 Rank | MFLOPS/W | Site* | Computer* | Total Power (kW) | TOP500 Rank* |
| 1 | 536.24 | Interdisciplinary Centre for Mathematical and Computational Modelling, University of Warsaw | "BladeCenter QS22 Cluster, PowerXCell 8i 4.0 Ghz, Infiniband | 34.63 | 220 |
| 2 | 530.33 | Repsol YPF | "BladeCenter QS22 Cluster, PowerXCell 8i 3.2 Ghz, Infiniband | 26.38 | 431 |
| 2 | 530.33 | Repsol YPF | "BladeCenter QS22 Cluster, PowerXCell 8i 3.2 Ghz, Infiniband | 26.38 | 430 |
| 2 | 530.33 | Repsol YPF | "BladeCenter QS22 Cluster, PowerXCell 8i 3.2 Ghz, Infiniband | 26.38 | 429 |
| 5 | 458.33 | DOE/NNSA/LANL | "BladeCenter QS22/LS21 Cluster, PowerXCell 8i 3.2 Ghz / Opteron DC 1.8 GHz , Infiniband | 138 | 41 |
| 5 | 458.33 | IBM Poughkeepsie Benchmarking Center | "BladeCenter QS22/LS21 Cluster, PowerXCell 8i 3.2 Ghz / Opteron DC 1.8 GHz , Infiniband | 138 | 42 |
| 7 | 444.94 | DOE/NNSA/LANL | "BladeCenter QS22/LS21 Cluster, PowerXCell 8i 3.2 Ghz / Opteron DC 1.8 GHz , Voltaire Infiniband | 2483.47 | 1 |
| 8 | 371.67 | ASTRON/University Groningen | "Blue Gene/P Solution | 94.5 | 75 |
| 9 | 371.67 | Centre for High Performance Computing | "Blue Gene/P Solution | 63 | 127 |
| 9 | 371.67 | Oak Ridge National Laboratory | "Blue Gene/P Solution | 63 | 129 |
| 9 | 371.67 | Stony Brook/BNL, New York Center for Computational Sciences | "Blue Gene/P Solution | 63 | 130 |
| 9 | 371.67 | RZG/Max-Planck-Gesellschaft MPI/IPP | "Blue Gene/P Solution | 126 | 57 |
| 9 | 371.67 | IBM - Rochester | "Blue Gene/P Solution | 126 | 56 |
| 9 | 371.67 | Moscow State University | "Blue Gene/P Solution | 63 | 128 |
* Performance data obtained from publicly available sources including TOP500
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