June 2005

The 25th TOP500 List was introduced during the International Supercomputer Conference (ISC2005) in Heidelberg, Germany.

The No. 1 position was again claimed by the BlueGene/L System, a joint development of IBM and DOE's National Nuclear Security Administration (NNSA) and installed at DOE's Lawrence Livermore National Laboratory in Livermore, Calif. BlueGene/L also occupied the No. 1 position on the last TOP500 list issued in November 2004. However, the system was doubled in size during the last six months and reached a new record Linpack benchmark performance of 136.8 TFlop/s ("teraflops" or trillions of calculations per second). This system, once completed, will again be doubled in size and is expected to remain the #1 Supercomputer in the world for the next few editions of the TOP500 list.

The pace of innovation and performance improvements seen at the very high end of scientific computing shows no sign of slowing down. This time, half of the TOP10 systems on the November 2004 TOP500 list were displaced by newly installed systems and the last 201 systems on the list from last November are now too small to be listed any longer.

TOP 10 Sites for June 2005

For more information about the sites and systems in the list, click on the links or view the complete list.

Rank Site System Cores Rmax (TFlop/s) Rpeak (TFlop/s) Power (kW)
1 DOE/NNSA/LLNL
United States		 BlueGene/L - eServer Blue Gene Solution
IBM		 65536 136.8 183.5 716
2 IBM Thomas J. Watson Research Center
United States		 BGW - eServer Blue Gene Solution
IBM		 40960 91.3 114.7 448
3 NASA/Ames Research Center/NAS
United States		 Columbia - SGI Altix 1.5 GHz, Voltaire Infiniband
SGI		 10160 51.9 61.0
4 Japan Agency for Marine -Earth Science and Technology
Japan		 Earth-Simulator
NEC		 5120 35.9 41.0 3200
5 Barcelona Supercomputing Center
Spain		 MareNostrum - JS20 Cluster, PPC 970, 2.2 GHz, Myrinet
IBM		 4800 27.9 42.1
6 ASTRON/University Groningen
Netherlands		 Stella - eServer Blue Gene Solution
IBM		 12288 27.4 34.4 134
7 Lawrence Livermore National Laboratory
United States		 Thunder - Intel Itanium2 Tiger4 1.4GHz - Quadrics
California Digital Corporation		 4096 19.9 22.9
8 Computational Biology Research Center, AIST
Japan		 Blue Protein - eServer Blue Gene Solution
IBM		 8192 18.2 22.9 89
9 Ecole Polytechnique Federale de Lausanne
Switzerland		 eServer Blue Gene Solution
IBM		 8192 18.2 22.9 89
10 Sandia National Laboratories
United States		 Red Storm, Cray XT3, 2.0 GHz
Cray Inc.		 5000 15.2 20.0

TOP10 November 2012

1 Titan - Cray XK7 , Opteron 6274 16C 2.200GHz, Cray Gemini interconnect, NVIDIA K20x
2 Sequoia - BlueGene/Q, Power BQC 16C 1.60 GHz, Custom
3 K computer, SPARC64 VIIIfx 2.0GHz, Tofu interconnect
4 Mira - BlueGene/Q, Power BQC 16C 1.60GHz, Custom
5 JUQUEEN - BlueGene/Q, Power BQC 16C 1.600GHz, Custom Interconnect
6 SuperMUC - iDataPlex DX360M4, Xeon E5-2680 8C 2.70GHz, Infiniband FDR
7 Stampede - PowerEdge C8220, Xeon E5-2680 8C 2.700GHz, Infiniband FDR, Intel Xeon Phi
8 Tianhe-1A - NUDT YH MPP, Xeon X5670 6C 2.93 GHz, NVIDIA 2050
9 Fermi - BlueGene/Q, Power BQC 16C 1.60GHz, Custom
10 DARPA Trial Subset - Power 775, POWER7 8C 3.836GHz, Custom Interconnect

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