Top500 List - June 2006

Rmax and Rpeak values are in TFlops. For more details about other fields, check the TOP500 description.

Rpeak values are calculated using the advertised clock rate of the CPU. For the efficiency of the systems you should take into account the Turbo CPU clock rate where it applies.

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
131072 280.6 367.0 1433
2 IBM Thomas J. Watson Research Center
United States
BGW - eServer Blue Gene Solution
IBM
40960 91.3 114.7 448
3 DOE/NNSA/LLNL
United States
ASC Purple - eServer pSeries p5 575 1.9 GHz
IBM
12208 75.8 92.8 1992
4 NASA/Ames Research Center/NAS
United States
Columbia - SGI Altix 1.5 GHz, Voltaire Infiniband
SGI
10160 51.9 61.0
5 Commissariat a l'Energie Atomique (CEA)
France
Tera-10 - NovaScale 5160, Itanium2 1.6 GHz, Quadrics
Bull SA
8704 42.9 55.7
6 NNSA/Sandia National Laboratories
United States
Thunderbird - PowerEdge 1850, 3.6 GHz, Infiniband
Dell
9024 38.3 65.0
7 GSIC Center, Tokyo Institute of Technology
Japan
TSUBAME Grid Cluster - Sun Fire x4600 Cluster, Opteron 2.4/2.6 GHz, Infiniband
NEC/Sun
10368 38.2 49.9
8 Forschungszentrum Juelich (FZJ)
Germany
JUBL - eServer Blue Gene Solution
IBM
16384 37.3 45.9 179
9 Sandia National Laboratories
United States
Red Storm Cray XT3, 2.0 GHz
Cray Inc.
10880 36.2 43.5
10 Japan Agency for Marine -Earth Science and Technology
Japan
Earth-Simulator
NEC
5120 35.9 41.0 3200
11 Barcelona Supercomputing Center
Spain
MareNostrum - JS20 Cluster, PPC 970, 2.2 GHz, Myrinet
IBM
4800 27.9 42.1
12 ASTRON/University Groningen
Netherlands
Stella - eServer Blue Gene Solution
IBM
12288 27.4 34.4 134
13 DOE/SC/Oak Ridge National Laboratory
United States
Jaguar - Cray XT3, 2.4 GHz
Cray Inc.
5200 20.5 25.0
14 Lawrence Livermore National Laboratory
United States
Thunder - Intel Itanium2 Tiger4 1.4GHz - Quadrics
California Digital Corporation
4096 19.9 22.9
15 Computational Biology Research Center, AIST
Japan
Blue Protein - eServer Blue Gene Solution
IBM
8192 18.2 22.9 89
16 Ecole Polytechnique Federale de Lausanne
Switzerland
eServer Blue Gene Solution
IBM
8192 18.2 22.9 89
17 High Energy Accelerator Research Organization /KEK
Japan
KEK/BG MOMO - eServer Blue Gene Solution
IBM
8192 18.2 22.9 89
18 High Energy Accelerator Research Organization /KEK
Japan
KEK/BG Sakura - eServer Blue Gene Solution
IBM
8192 18.2 22.9 89
19 IBM Rochester, On Demand Deep Computing Center
United States
eServer Blue Gene Solution
IBM
8192 18.2 22.9 89
20 ERDC DSRC
United States
Sapphire - Cray XT3, 2.6 GHz
Cray Inc.
4096 17.0 21.3
21 COLSA
United States
MACH5 - Apple XServe, 2.0 GHz, Myrinet
Self-made
3072 16.2 24.6
22 Korea Meteorological Administration
Korea, South
Cray X1E (4GB)
Cray Inc.
1020 15.7 18.4
23 Indiana University
United States
Big Red - BladeCenter JS21 Cluster, PPC 970, 2.5 GHz, Myrinet
IBM
2048 15.0 20.5
24 DOE/SC/Oak Ridge National Laboratory
United States
Cray X1E (2GB)
Cray Inc.
1014 15.0 18.3
25 Los Alamos National Laboratory
United States
ASCI Q - AlphaServer SC45, 1.25 GHz
Hewlett-Packard
8192 13.9 20.5
26 University of Southern California
United States
HPC - Pentium4 Xeon, EM64T, Opteron, Opteron dual core, Cluster, Myrinet
Oracle
5328 13.8 21.3
27 Geoscience (E)
United States
BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet
IBM
5000 12.3 22.0 307
28 Virginia Tech
United States
System X - 1100 Dual 2.3 GHz Apple XServe/Mellanox Infiniband 4X/Cisco GigE
Self-made
2200 12.2 20.2
29 Air Force Research Laboratory
United States
SGI Altix 3700 Bx2, 1.6 GHz, NUMALink
SGI
2048 11.8 13.1
30 Japan Atomic Energy Research Institute
Japan
SGI Altix 3700 Bx2, 1.6 GHz, NUMALink
SGI
2048 11.8 13.1
31 AWE
United Kingdom
Cray XT3, 2.6 GHz
Cray Inc.
2652 11.8 13.8
32 IBM Rochester
United States
BlueGene/L DD1 Prototype (0.5GHz PowerPC 440 w/Custom)
IBM/ LLNL
8192 11.7 16.4
33 US Army Research Laboratory (ARL)
United States
John Von Neumann - LNX Cluster, Xeon 3.6 GHz, Myrinet
Linux Networx
2048 10.7 14.7
34 Center for Computational Sciences, University of Tsukuba
Japan
PACS-CS - PACS-CS, low voltage Xeon 2.8 GHz, 3D Hyper-Crossbar
Hitachi/Fujitsu
2560 10.3 14.3 545
35 China Meteorological Administration
China
eServer pSeries 655 (1.7 GHz Power4+)
IBM
3200 10.3 21.8
36 Naval Oceanographic Office - NAVO DSRC
United States
eServer pSeries 655 (1.7 GHz Power4+)
IBM
2944 10.3 20.0
37 NCSA
United States
Tungsten - PowerEdge 1750, P4 Xeon 3.06 GHz, Myrinet
Dell
2500 9.8 15.3
38 High Energy Accelerator Research Organization /KEK
Japan
KEK/BG UME - eServer Blue Gene Solution
IBM
4096 9.4 11.5 44
39 IBM - Almaden Research Center
United States
eServer Blue Gene Solution
IBM
4096 9.4 11.5 44
40 IBM Research
Switzerland
eServer Blue Gene Solution
IBM
4096 9.4 11.5 44
41 IBM Thomas J. Watson Research Center
United States
eServer Blue Gene Solution
IBM/ LLNL
4096 9.4 11.5 44
42 ECMWF
United Kingdom
eServer pSeries 690 (1.9 GHz Power4+)
IBM
2176 9.2 16.5
43 ECMWF
United Kingdom
eServer pSeries 690 (1.9 GHz Power4+)
IBM
2176 9.2 16.5
44 UCSD/San Diego Supercomputer Center
United States
DataStar - eServer pSeries 655/690 (1.5/1.7 GHz Power4+)
IBM
2464 9.1 15.6
45 Japan Meteorological Agency
Japan
SR11000-K1/80
Hitachi
80 9.0 10.8
46 Japan Meteorological Agency
Japan
SR11000-K1/80
Hitachi
80 9.0 10.8
47 National Computational Infrastructure National Facility (NCI-NF)
Australia
SGI Altix 3700 Bx2, 1.6 GHz, NUMALink
SGI
1536 9.0 9.8
48 HWW/Universitaet Stuttgart
Germany
SX8/576M72
NEC
576 8.9 9.2
49 Institute of Physical and Chemical Res. (RIKEN)
Japan
RIKEN Super Combined Cluster
Fujitsu
2048 8.7 12.5
50 DOE/SC/Pacific Northwest National Laboratory
United States
Mpp2 - Cluster Platform 6000 rx2600 Itanium2 1.5 GHz, Quadrics
Hewlett-Packard
1936 8.6 11.6
51 Georgia Institute of Technology
United States
BladeCenter LS20, Opteron 2.0 GHz Dual core, GigEthernet
IBM
3920 8.5 15.7 220
52 Caltech
United States
CITerra - PowerEdge 1850, 3.2 GHz, Myrinet
Dell
2048 8.4 13.1
53 Shanghai Supercomputer Center
China
Dawning 4000A, Opteron 2.2 GHz, Myrinet
Dawning
2560 8.1 11.3
54 Los Alamos National Laboratory
United States
Lightning - Opteron 2 GHz, Myrinet
Linux Networx
2816 8.1 11.3
55 Pittsburgh Supercomputing Center
United States
BigBen - Cray XT3, 2.4 GHz
Cray Inc.
2060 7.9 9.9
56 Air Force Research Laboratory
United States
Cluster Platform 4000 DL145 Opteron 2.8 GHz Infiniband
Hewlett-Packard
2048 7.9 11.5
57 University at Buffalo, SUNY, Center for Computational Res.
United States
U2 - PowerEdge SC1425 3.2 GHz, Myrinet
Dell
1536 7.7 9.8
58 Lawrence Livermore National Laboratory
United States
MCR Linux Cluster Xeon 2.4 GHz - Quadrics
Linux Networx/Quadrics
2304 7.6 11.1
59 HPCx
United Kingdom
eServer pSeries p5 575 1.5 GHz
IBM
1536 7.4 9.2
60 DOE/SC/LBNL/NERSC
United States
Seaborg - SP Power3 375 MHz 16 way
IBM
6656 7.3 10.0
61 Lawrence Livermore National Laboratory
United States
ASCI White, SP Power3 375 MHz
IBM
8192 7.3 12.3
62 NCSA
United States
TeraGrid, Itanium2 1.3/1.5 GHZ, Myrinet
IBM
1776 7.2 10.3
63 US Army Research Laboratory (ARL)
United States
eServer Opteron 2.2 GHz. Myrinet
IBM
2320 7.2 10.2
64 Swiss Scientific Computing Center (CSCS)
Switzerland
Cray XT3, 2.6 GHz
Cray Inc.
1664 7.0 8.7
65 Texas Advanced Computing Center/Univ. of Texas
United States
Lonestar2 - PowerEdge 1855, 3.2 GHz, Infiniband
Dell
1300 7.0 8.3
66 University of Sherbrooke
Canada
Mp - PowerEdge SC1425 3.6 GHz- Infiniband
Dell
1152 6.9 8.3
67 Nagoya University
Japan
PRIMEPOWER HPC2500 (2.08 GHz)
Fujitsu
1664 6.9 13.8
68 Intel
United States
Endeavor - Intel Cluster, Xeon 3.0 GHz dual core, Infiniband
Intel
928 6.9 11.1
69 Los Alamos National Laboratory
United States
Coyote A - Opteron 2.6 GHz, Infiniband
Linux Networx
1620 6.7 8.4
70 Joint Supercomputer Center
Russia
MVS-15000BM, eServer BladeCenter JS20 (PowerPC970 2.2 GHz), Myrinet
IBM
1148 6.6 10.1
71 Lawrence Livermore National Laboratory
United States
xSeries Cluster Xeon 2.4 GHz - Quadrics
IBM/Quadrics
1920 6.6 9.2
72 DOE/SC/LBNL/NERSC
United States
Bassi - eServer pSeries p5 575 1.9 GHz
IBM
976 6.4 7.4 159
73 NASA/Goddard Space Flight Center
United States
Explore - SGI Altix 3700 Bx2, 1.5 GHz, NUMAlink, Infiniband
SGI
1152 6.3 6.9
74 University of North Carolina
United States
Topsail - PowerEdge 1855, 3.6 GHz, Infiniband
Dell
1040 6.3 7.5
75 Lawrence Livermore National Laboratory
United States
Lilac - xSeries x335 Cluster, Xeon 3.06 GHz, Quadrics
IBM
1540 6.2 9.4
76 HPCx
United Kingdom
eServer pSeries 690 (1.7 GHz Power4+)
IBM
1600 6.2 10.9
77 Grid Technology Research Center, AIST
Japan
AIST Super Cluster P-32 - AIST Super Cluster P-32, Opteron 2.0 GHz, Myrinet
IBM
2200 6.2 8.8
78 NCSA
United States
Tungsten 2 - PowerEdge 1850, 3.6 GHz, Infiniband
Dell
1024 6.1 7.4
79 NCSA
United States
SGI Altix 3700 Bx2, 1.6 GHz, NUMALink
SGI
1024 6.0 6.6
80 SharcNet
Canada
Whale - Cluster Platform 4000 DL145 Opteron 2.2 GHz Dual Core GigEthernet
Hewlett-Packard
3072 6.0 13.5
81 Tohoku University, Institute of Fluid Science
Japan
SGI Altix 3700 Bx2, 1.6 GHz, NUMALink, 10GigEthernet
SGI
1024 6.0 6.6
82 Telecommunication Company
United States
Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz, GigEthernet
Hewlett-Packard
1728 6.0 11.1
83 SharcNet
Canada
Requin - Cluster Platform 4000 DL145, Opteron 2,6 GHz, Quadrics
Hewlett-Packard
1536 5.7 8.0
84 Lawrence Livermore National Laboratory
United States
eServer pSeries p5 575 1.9 GHz
IBM
864 5.7 6.6 141
85 Seoul National University
Korea, South
eServer BladeCenter JS20 (PowerPC970 2.2 GHz), Myrinet
IBM
968 5.6 8.5
86 Forschungszentrum Juelich (FZJ)
Germany
JUMP - eServer pSeries 690 (1.7 GHz Power4+)
IBM
1312 5.6 8.9
87 Brigham Young University
United States
Marylou4 - PowerEdge 1855, 3.6 GHz, GigEthernet
Dell
1260 5.4 9.1
88 University of Oklahoma
United States
Topdawg - PowerEdge 1850, 3.2 GHz, Infiniband
Dell
1024 5.4 6.6
89 National Aerospace Laboratory of Japan
Japan
PRIMEPOWER HPC2500 (1.3 GHz)
Fujitsu
2304 5.4 12.0
90 Sun Solution Center for HPC
United States
SSC_V40z+x4100 - Fire V40x/X4100 Cluster Opteron 2.4GHz dual core, Infiniband
Oracle
1536 5.4 7.4
91 KTH - Royal Institute of Technology
Sweden
Lenngren - PowerEdge 1850, 3.4 GHz, Infiniband
Dell
886 5.0 6.0
92 Japan Meteorological Agency
Japan
SR11000-J1/50
Hitachi
50 5.0 6.1
93 Financial Services (M)
United Kingdom
BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet
IBM
2000 4.9 8.8 123
94 Financial Services (M)
United Kingdom
BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet
IBM
2000 4.9 8.8 123
95 Adam Opel AG
Germany
eServer pSeries p5 575 1.9 GHz
IBM
720 4.8 5.5 117
96 Los Alamos National Laboratory
United States
Coyote B - Opteron 2.6 GHz, Infiniband
Linux Networx
1080 4.7 5.6
97 Boston University
United States
eServer Blue Gene Solution
IBM
2048 4.7 5.7 22
98 DOE/SC/Argonne National Laboratory
United States
eServer Blue Gene Solution
IBM
2048 4.7 5.7 22
99 Iowa State University
United States
CyBlue - eServer Blue Gene Solution
IBM
2048 4.7 5.7 22
100 MIT
United States
eServer Blue Gene Solution
IBM
2048 4.7 5.7 22