Top500 List - November 2005

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
10240 63.4 77.8 1671
4 NASA/Ames Research Center/NAS
United States
Columbia - SGI Altix 1.5 GHz, Voltaire Infiniband
SGI
10160 51.9 61.0
5 Sandia National Laboratories
United States
Thunderbird - PowerEdge 1850, 3.6 GHz, Infiniband
Dell
8000 38.3 57.6
6 Sandia National Laboratories
United States
Red Storm Cray XT3, 2.0 GHz
Cray Inc.
10880 36.2 43.5
7 Japan Agency for Marine -Earth Science and Technology
Japan
Earth-Simulator
NEC
5120 35.9 41.0 3200
8 Barcelona Supercomputing Center
Spain
MareNostrum - JS20 Cluster, PPC 970, 2.2 GHz, Myrinet
IBM
4800 27.9 42.1
9 ASTRON/University Groningen
Netherlands
Stella - eServer Blue Gene Solution
IBM
12288 27.4 34.4 134
10 DOE/SC/Oak Ridge National Laboratory
United States
Jaguar - Cray XT3, 2.4 GHz
Cray Inc.
5200 20.5 25.0
11 Lawrence Livermore National Laboratory
United States
Thunder - Intel Itanium2 Tiger4 1.4GHz - Quadrics
California Digital Corporation
4096 19.9 22.9
12 Computational Biology Research Center, AIST
Japan
Blue Protein - eServer Blue Gene Solution
IBM
8192 18.2 22.9 89
13 Ecole Polytechnique Federale de Lausanne
Switzerland
eServer Blue Gene Solution
IBM
8192 18.2 22.9 89
14 ERDC DSRC
United States
Sapphire - Cray XT3, 2.6 GHz
Cray Inc.
4096 17.0 21.3
15 COLSA
United States
MACH5 - Apple XServe, 2.0 GHz, Myrinet
Self-made
3072 16.2 24.6
16 Korea Meteorological Administration
Korea, South
Cray X1E (4GB)
Cray Inc.
1020 15.7 18.4
17 DOE/SC/Oak Ridge National Laboratory
United States
Cray X1E (2GB)
Cray Inc.
1014 15.0 18.3
18 Los Alamos National Laboratory
United States
ASCI Q - AlphaServer SC45, 1.25 GHz
Hewlett-Packard
8192 13.9 20.5
19 Lawrence Livermore National Laboratory
United States
eServer pSeries p5 575 1.9 GHz
IBM
2048 13.1 15.6 334
20 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
21 Air Force Research Laboratory
United States
SGI Altix 3700 Bx2, 1.6 GHz, NUMALink
SGI
2048 11.8 13.1
22 Japan Atomic Energy Research Institute
Japan
SGI Altix 3700 Bx2, 1.6 GHz, NUMALink
SGI
2048 11.8 13.1
23 IBM Rochester
United States
BlueGene/L DD1 Prototype (0.5GHz PowerPC 440 w/Custom)
IBM/ LLNL
8192 11.7 16.4
24 University of Southern California
United States
HPC - Pentium4 Xeon, EM64T, Opteron, Opteron dual core, Cluster, Myrinet
IBM, Sun, Myricom
2904 10.8 17.3
25 US Army Research Laboratory (ARL)
United States
John Von Neumann - LNX Cluster, Xeon 3.6 GHz, Myrinet
Linux Networx
2048 10.7 14.7
26 China Meteorological Administration
China
eServer pSeries 655 (1.7 GHz Power4+)
IBM
3200 10.3 21.8
27 Naval Oceanographic Office - NAVO DSRC
United States
eServer pSeries 655 (1.7 GHz Power4+)
IBM
2944 10.3 20.0
28 NCSA
United States
Tungsten - PowerEdge 1750, P4 Xeon 3.06 GHz, Myrinet
Dell
2500 9.8 15.3
29 IBM - Almaden Research Center
United States
eServer Blue Gene Solution
IBM
4096 9.4 11.5 44
30 IBM - Deep Computing Capacity on Demand Center
United States
eServer Blue Gene Solution
IBM
4096 9.4 11.5 44
31 IBM Research
Switzerland
eServer Blue Gene Solution
IBM
4096 9.4 11.5 44
32 IBM Thomas J. Watson Research Center
United States
eServer Blue Gene Solution
IBM/ LLNL
4096 9.4 11.5 44
33 ECMWF
United Kingdom
eServer pSeries 690 (1.9 GHz Power4+)
IBM
2176 9.2 16.5
34 ECMWF
United Kingdom
eServer pSeries 690 (1.9 GHz Power4+)
IBM
2176 9.2 16.5
35 UCSD/San Diego Supercomputer Center
United States
DataStar - eServer pSeries 655/690 (1.5/1.7 GHz Power4+)
IBM
2464 9.1 15.6
36 National Computational Infrastructure National Facility (NCI-NF)
Australia
SGI Altix 3700 Bx2, 1.6 GHz, NUMALink
SGI
1536 9.0 9.8
37 HWW/Universitaet Stuttgart
Germany
SX8/576M72
NEC
576 8.9 9.2
38 Institute of Physical and Chemical Res. (RIKEN)
Japan
RIKEN Super Combined Cluster
Fujitsu
2048 8.7 12.5
39 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
40 Caltech
United States
CITerra - PowerEdge 1850, 3.2 GHz, Myrinet
Dell
2048 8.4 13.1
41 Shanghai Supercomputer Center
China
Dawning 4000A, Opteron 2.2 GHz, Myrinet
Dawning
2560 8.1 11.3
42 Los Alamos National Laboratory
United States
Lightning - Opteron 2 GHz, Myrinet
Linux Networx
2816 8.1 11.3
43 Pittsburgh Supercomputing Center
United States
BigBen - Cray XT3, 2.4 GHz
Cray Inc.
2060 7.9 9.9
44 Lawrence Livermore National Laboratory
United States
MCR Linux Cluster Xeon 2.4 GHz - Quadrics
Linux Networx/Quadrics
2304 7.6 11.1
45 HPCx
United Kingdom
eServer pSeries p5 575 1.5 GHz
IBM
1536 7.4 9.2
46 DOE/SC/LBNL/NERSC
United States
Seaborg - SP Power3 375 MHz 16 way
IBM
6656 7.3 10.0
47 Lawrence Livermore National Laboratory
United States
ASCI White, SP Power3 375 MHz
IBM
8192 7.3 12.3
48 NCSA
United States
TeraGrid, Itanium2 1.3/1.5 GHZ, Myrinet
IBM
1776 7.2 10.3
49 US Army Research Laboratory (ARL)
United States
eServer Opteron 2.2 GHz. Myrinet
IBM
2320 7.2 10.2
50 University of Sherbrooke
Canada
Mp - PowerEdge SC1425 3.6 GHz- Infiniband
Dell
1152 6.9 8.3
51 Nagoya University
Japan
PRIMEPOWER HPC2500 (2.08 GHz)
Fujitsu
1664 6.9 13.8
52 Lawrence Livermore National Laboratory
United States
xSeries Cluster Xeon 2.4 GHz - Quadrics
IBM/Quadrics
1920 6.6 9.2
53 DOE/SC/LBNL/NERSC
United States
Bassi - eServer pSeries p5 575 1.9 GHz
IBM
976 6.4 7.4 159
54 NASA/Goddard Space Flight Center
United States
Explore - SGI Altix 3700 Bx2, 1.5 GHz, NUMAlink, Infiniband
SGI
1152 6.3 6.9
55 Lawrence Livermore National Laboratory
United States
Lilac - xSeries x335 Cluster, Xeon 3.06 GHz, Quadrics
IBM
1540 6.2 9.4
56 HPCx
United Kingdom
eServer pSeries 690 (1.7 GHz Power4+)
IBM
1600 6.2 10.9
57 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
58 NCSA
United States
Tungsten 2 - PowerEdge 1850, 3.6 GHz, Infiniband
Dell
1024 6.1 7.4
59 NCSA
United States
SGI Altix 3700 Bx2, 1.6 GHz, NUMALink
SGI
1024 6.0 6.6
60 Air Force Research Laboratory
United States
Cluster Platform 4000 DL145 Opteron 2.6 GHz Infiniband
Hewlett-Packard
2048 5.9 10.6
61 Commissariat a l'Energie Atomique (CEA)
France
Tera10 beta system - NovaScale 5160, Itanium2 1.6 GHz, Quadrics
Bull SA
1008 5.8 6.5
62 Lawrence Livermore National Laboratory
United States
eServer pSeries p5 575 1.9 GHz
IBM
864 5.7 6.6 141
63 Seoul National University
Korea, South
eServer BladeCenter JS20 (PowerPC970 2.2 GHz), Myrinet
IBM
968 5.6 8.5
64 Forschungszentrum Juelich (FZJ)
Germany
JUMP - eServer pSeries 690 (1.7 GHz Power4+)
IBM
1312 5.6 8.9
65 Brigham Young University
United States
Marylou4 - PowerEdge 1855, 3.6 GHz, GigEthernet
Dell
1260 5.4 9.1
66 University of Oklahoma
United States
Topdawg - PowerEdge 1850, 3.2 GHz, Infiniband
Dell
1024 5.4 6.6
67 National Aerospace Laboratory of Japan
Japan
PRIMEPOWER HPC2500 (1.3 GHz)
Fujitsu
2304 5.4 12.0
68 Joint Supercomputer Center
Russia
MVS-15000BM, eServer BladeCenter JS20 (PowerPC970 2.2 GHz), Myrinet
IBM
924 5.4 8.1
69 KTH - Royal Institute of Technology
Sweden
Lenngren - PowerEdge 1850, 3.4 GHz, Infiniband
Dell
886 5.0 6.0
70 Swiss Scientific Computing Center (CSCS)
Switzerland
Cray XT3, 2.6 GHz
Cray Inc.
1100 4.8 5.7
71 Adam Opel AG
Germany
eServer pSeries p5 575 1.9 GHz
IBM
720 4.8 5.5 117
72 Boston University
United States
eServer Blue Gene Solution
IBM
2048 4.7 5.7 22
73 DOE/SC/Argonne National Laboratory
United States
eServer Blue Gene Solution
IBM
2048 4.7 5.7 22
74 Forschungszentrum Juelich (FZJ)
Germany
eServer Blue Gene Solution
IBM
2048 4.7 5.7 22
75 MIT
United States
eServer Blue Gene Solution
IBM
2048 4.7 5.7 22
76 NCAR (National Center for Atmospheric Research)
United States
eServer Blue Gene Solution
IBM
2048 4.7 5.7 22
77 NIWS Co, Ltd
Japan
eServer Blue Gene Solution
IBM
2048 4.7 5.7 22
78 Princeton University
United States
Orangena - eServer Blue Gene Solution
IBM
2048 4.7 5.7 22
79 UCSD/San Diego Supercomputer Center
United States
Intimidata - eServer Blue Gene Solution
IBM
2048 4.7 5.7 22
80 University of Edinburgh
United Kingdom
eServer Blue Gene Solution
IBM
2048 4.7 5.7 22
81 Government Classified
United States
Cluster Platform 3000 DL360G4 Xeon 3.4 GHz, Myrinet
Hewlett-Packard
1000 4.6 6.8
82 Government Classified
United States
Cluster Platform 3000 DL360G4 Xeon 3.4 GHz, Myrinet
Hewlett-Packard
1000 4.6 6.8
83 Max-Planck-Gesellschaft MPI/IPP
Germany
eServer pSeries p5 575 1.9 GHz
IBM
688 4.6 5.2 112
84 University of Illinois
United States
Turing - XServe G5 2GHz, Myrinet
Self-made
1024 4.6 8.2
85 Kyoto University
Japan
PRIMEPOWER HPC2500 (1.56 GHz)
Fujitsu
1472 4.6 9.2
86 Pittsburgh Supercomputing Center
United States
AlphaServer SC45, 1 GHz
Hewlett-Packard
3016 4.5 6.0
87 NOAA R&D/ National Centers for Environmental Prediction
United States
eServer pSeries 655 (1.7 GHz Power4+)
IBM
1152 4.4 7.8
88 NOAA R&D/ National Centers for Environmental Prediction
United States
eServer pSeries 655 (1.7 GHz Power4+)
IBM
1152 4.4 7.8
89 UT SimCenter at Chattanooga
United States
Slide Rule - PowerEdge 1850/1855 3.2 GHz GigEthernet
Dell
1010 4.3 6.5
90 Total SA
France
Houat - eServer pSeries p5 575 1.5 GHz, Myrinet
IBM
1024 4.3 6.1
91 Caltech/JPL
United States
Cosmos - PowerEdge 1750, P4 Xeon 3.2 GHz, Myrinet
Dell
1024 4.3 6.6
92 Computer Network Information Center, Chinese Academy of Science
China
DeepComp 6800, Itanium2 1.3 GHz, QsNet
lenovo
1024 4.2 5.3
93 NCAR (National Center for Atmospheric Research)
United States
pSeries 690 Turbo 1.3 GHz
IBM
1600 4.2 8.3
94 Texas Advanced Computing Center/Univ. of Texas
United States
lonestar - PowerEdge 1750, Pentium4 Xeon 3.2/3.06 GHz, Myrinet
Dell-Cray
1024 4.2 6.3
95 Walt Disney Feature Animation
United States
The Hive - Cluster Platform 3000 DL360G3 Xeon 3.06 GHz, Verari BladeRack 3.4 GHz, GigEthernet
Hewlett-Packard
1110 4.1 6.9
96 DOE/Bettis Atomic Power Laboratory
United States
Atipa Cluster, Opteron, Myrinet
Atipa Technology
1090 4.0 5.2
97 DOE/Knolls Atomic Power Laboratory
United States
Atipa Cluster, Opteron, Myrinet
Atipa Technology
1090 4.0 5.2
98 NCAR (National Center for Atmospheric Research)
United States
eServer pSeries p5 575 1.9 GHz
IBM
608 4.0 4.6 99
99 Commissariat a l'Energie Atomique (CEA)
France
AlphaServer SC45, 1 GHz
Hewlett-Packard
2560 4.0 5.1
100 Hewlett-Packard
United States
Cluster Platform 4000 DL145 Opteron 2.6 GHz Infiniband
Hewlett-Packard
1024 3.9 5.3