November 2005

The 26th TOP500 List was introduced during the Supercomputing Conference(SC|05) in Seattle, WA.

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 two TOP500 lists. However, the system was doubled in size during the last six months and reached a new record Linpack benchmark performance of 280.6 TFlop/s ("teraflops" or trillions of calculations per second). No other system has yet exceeded the level of 100 TFlop/s and this system is expected to remain the No. 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, four of the TOP10 systems on the June 2005 TOP500 list were displaced by newly installed systems, and the last 221 systems on the list from June 2005 are now too small to be included.

TOP 10 Sites for November 2005

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

Rank System Cores Rmax (TFlop/s) Rpeak (TFlop/s) Power (kW)
1 BlueGene/L - eServer Blue Gene Solution, IBM
United States
131,072 280.60 367.00 1,433
2 BGW - eServer Blue Gene Solution, IBM
IBM Thomas J. Watson Research Center
United States
40,960 91.29 114.69 448
3 ASC Purple - eServer pSeries p5 575 1.9 GHz, IBM
United States
10,240 63.39 77.82 1,671
4 Columbia - SGI Altix 1.5 GHz, Voltaire Infiniband, HPE
NASA/Ames Research Center/NAS
United States
10,160 51.87 60.96
5 Thunderbird - PowerEdge 1850, 3.6 GHz, Infiniband, DELL EMC
Sandia National Laboratories
United States
8,000 38.27 57.60
6 Red Storm Cray XT3, 2.0 GHz, Cray/HPE
Sandia National Laboratories
United States
10,880 36.19 43.52
7 Earth-Simulator, NEC
Japan Agency for Marine-Earth Science and Technology
5,120 35.86 40.96 3,200
8 MareNostrum - JS20 Cluster, PPC 970, 2.2 GHz, Myrinet, IBM
Barcelona Supercomputing Center
4,800 27.91 42.14
9 Stella - eServer Blue Gene Solution, IBM
ASTRON/University Groningen
12,288 27.45 34.41 134
10 Jaguar - Cray XT3, 2.4 GHz, Cray/HPE
DOE/SC/Oak Ridge National Laboratory
United States
5,200 20.53 24.96