Top500 List - June 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
65,536 136.8 183.5 716
2 IBM Thomas J. Watson Research Center
United States
BGW - eServer Blue Gene Solution
IBM
40,960 91.3 114.7 448
3 NASA/Ames Research Center/NAS
United States
Columbia - SGI Altix 1.5 GHz, Voltaire Infiniband
SGI
10,160 51.9 61.0
4 Japan Agency for Marine -Earth Science and Technology
Japan
Earth-Simulator
NEC
5,120 35.9 41.0 3,200
5 Barcelona Supercomputing Center
Spain
MareNostrum - JS20 Cluster, PPC 970, 2.2 GHz, Myrinet
IBM
4,800 27.9 42.1
6 ASTRON/University Groningen
Netherlands
Stella - eServer Blue Gene Solution
IBM
12,288 27.4 34.4 134
7 Lawrence Livermore National Laboratory
United States
Thunder - Intel Itanium2 Tiger4 1.4GHz - Quadrics
California Digital Corporation
4,096 19.9 22.9
8 Computational Biology Research Center, AIST
Japan
Blue Protein - eServer Blue Gene Solution
IBM
8,192 18.2 22.9 89
9 Ecole Polytechnique Federale de Lausanne
Switzerland
eServer Blue Gene Solution
IBM
8,192 18.2 22.9 89
10 Sandia National Laboratories
United States
Red Storm, Cray XT3, 2.0 GHz
Cray Inc.
5,000 15.2 20.0
11 DOE/SC/Oak Ridge National Laboratory
United States
Cray XT3, 2.4 GHz
Cray Inc.
3,748 14.2 18.0
12 Los Alamos National Laboratory
United States
ASCI Q - AlphaServer SC45, 1.25 GHz
Hewlett-Packard
8,192 13.9 20.5
13 Lawrence Livermore National Laboratory
United States
eServer pSeries p5 575 1.9 GHz
IBM
2,048 13.1 15.6 334
14 Virginia Tech
United States
System X - 1100 Dual 2.3 GHz Apple XServe/Mellanox Infiniband 4X/Cisco GigE
Self-made
2,200 12.2 20.2
15 Air Force Research Laboratory
United States
SGI Altix 3700 Bx2, 1.6 GHz, NUMALink
SGI
2,048 11.8 13.1
16 Japan Atomic Energy Research Institute
Japan
SGI Altix 3700 Bx2, 1.6 GHz, NUMALink
SGI
2,048 11.8 13.1
17 IBM Rochester
United States
BlueGene/L DD1 Prototype (0.5GHz PowerPC 440 w/Custom)
IBM/ LLNL
8,192 11.7 16.4
18 China Meteorological Administration
China
eServer pSeries 655 (1.7 GHz Power4+)
IBM
3,200 10.3 21.8
19 Naval Oceanographic Office - NAVO DSRC
United States
eServer pSeries 655 (1.7 GHz Power4+)
IBM
2,944 10.3 20.0
20 NCSA
United States
Tungsten - PowerEdge 1750, P4 Xeon 3.06 GHz, Myrinet
Dell
2,500 9.8 15.3
21 IBM - Almaden Research Center
United States
eServer Blue Gene Solution
IBM
4,096 9.4 11.5 44
22 IBM - Deep Computing Capacity on Demand Center
United States
eServer Blue Gene Solution
IBM
4,096 9.4 11.5 44
23 IBM Thomas J. Watson Research Center
United States
eServer Blue Gene Solution
IBM/ LLNL
4,096 9.4 11.5 44
24 ECMWF
United Kingdom
eServer pSeries 690 (1.9 GHz Power4+)
IBM
2,176 9.2 16.5
25 ECMWF
United Kingdom
eServer pSeries 690 (1.9 GHz Power4+)
IBM
2,176 9.2 16.5
26 National Computational Infrastructure National Facility (NCI-NF)
Australia
SGI Altix 3700 Bx2, 1.6 GHz, NUMALink
SGI
1,536 9.0 9.8
27 HWW/Universitaet Stuttgart
Germany
SX8/576M72
NEC
576 8.9 9.2
28 US Army Research Laboratory (ARL)
United States
John Von Neumann - LNX Cluster, Xeon 3.4 GHz, Myrinet
Linux Networx
2,048 8.8 13.9
29 Institute of Physical and Chemical Res. (RIKEN)
Japan
RIKEN Super Combined Cluster
Fujitsu
2,048 8.7 12.5
30 DOE/SC/Pacific Northwest National Laboratory
United States
Mpp2 - Cluster Platform 6000 rx2600 Itanium2 1.5 GHz, Quadrics
Hewlett-Packard
1,936 8.6 11.6
31 Shanghai Supercomputer Center
China
Dawning 4000A, Opteron 2.2 GHz, Myrinet
Dawning
2,560 8.1 11.3
32 Los Alamos National Laboratory
United States
Lightning - Opteron 2 GHz, Myrinet
Linux Networx
2,816 8.1 11.3
33 Pittsburgh Supercomputing Center
United States
BigBen - Cray XT3, 2.4 GHz
Cray Inc.
2,060 7.9 9.9
34 Lawrence Livermore National Laboratory
United States
MCR Linux Cluster Xeon 2.4 GHz - Quadrics
Linux Networx/Quadrics
2,304 7.6 11.1
35 DOE/SC/LBNL/NERSC
United States
Seaborg - SP Power3 375 MHz 16 way
IBM
6,656 7.3 10.0
36 Lawrence Livermore National Laboratory
United States
ASCI White, SP Power3 375 MHz
IBM
8,192 7.3 12.3
37 University of Southern California
United States
HPC - Sun Fire V60, IBM xServer,2.8-3.2 GHz, Myrinet
IBM, Sun, Myricom
2,640 7.3 14.8
38 NCSA
United States
TeraGrid, Itanium2 1.3/1.5 GHZ, Myrinet
IBM
1,776 7.2 10.3
39 US Army Research Laboratory (ARL)
United States
eServer Opteron 2.2 GHz. Myrinet
IBM
2,320 7.2 10.2
40 University of Sherbrooke
Canada
Mp - PowerEdge SC1425 3.6 GHz- Infiniband
Dell
1,152 6.9 8.3
41 Nagoya University
Japan
PRIMEPOWER HPC2500 (2.08 GHz)
Fujitsu
1,664 6.9 13.8
42 Lawrence Livermore National Laboratory
United States
xSeries Cluster Xeon 2.4 GHz - Quadrics
IBM/Quadrics
1,920 6.6 9.2
43 UCSD/San Diego Supercomputer Center
United States
DataStar - eServer pSeries 655/690 (1.5/1.7 Ghz Power4+)
IBM
1,696 6.4 10.4
44 Lawrence Livermore National Laboratory
United States
Lilac - xSeries x335 Cluster, Xeon 3.06 GHz, Quadrics
IBM
1,540 6.2 9.4
45 HPCx
United Kingdom
eServer pSeries 690 (1.7 GHz Power4+)
IBM
1,600 6.2 10.9
46 Grid Technology Research Center, AIST
Japan
AIST Super Cluster P-32 - AIST Super Cluster P-32, Opteron 2.0 GHz, Myrinet
IBM
2,200 6.2 8.8
47 NCSA
United States
Tungsten 2 - PowerEdge 1850, 3.6 GHz, Infiniband
Dell
1,024 6.1 7.4
48 NCSA
United States
SGI Altix 3700 Bx2, 1.6 GHz, NUMALink
SGI
1,024 6.0 6.6
49 Lawrence Livermore National Laboratory
United States
eServer pSeries p5 575 1.9 GHz
IBM
896 5.9 6.8 146
50 DOE/SC/Oak Ridge National Laboratory
United States
Cray X1
Cray Inc.
504 5.9 6.5
51 Seoul National University
Korea, South
eServer BladeCenter JS20 (PowerPC970 2.2 GHz), Myrinet
IBM
968 5.6 8.5
52 Forschungszentrum Juelich (FZJ)
Germany
JUMP - eServer pSeries 690 (1.7 GHz Power4+)
IBM
1,312 5.6 8.9
53 Brigham Young University
United States
Marylou4 - PowerEdge 1855, 3.6 GHz, GigEthernet
Dell
1,260 5.4 9.1
54 University of Oklahoma
United States
Topdawg - PowerEdge 1850, 3.2 GHz, Infiniband
Dell
1,024 5.4 6.6
55 National Aerospace Laboratory of Japan
Japan
PRIMEPOWER HPC2500 (1.3 GHz)
Fujitsu
2,304 5.4 12.0
56 Joint Supercomputer Center
Russia
MVS-15000BM, eServer BladeCenter JS20 (PowerPC970 2.2 GHz), Myrinet
IBM
924 5.4 8.1
57 Swiss Scientific Computing Center (CSCS)
Switzerland
Cray XT3, 2.6 GHz
Cray Inc.
1,100 4.8 5.7
58 Boston University
United States
eServer Blue Gene Solution
IBM
2,048 4.7 5.7 22
59 DOE/SC/Argonne National Laboratory
United States
eServer Blue Gene Solution
IBM
2,048 4.7 5.7 22
60 Forschungszentrum Juelich (FZJ)
Germany
eServer Blue Gene Solution
IBM
2,048 4.7 5.7 22
61 NCAR (National Center for Atmospheric Research)
United States
eServer Blue Gene Solution
IBM
2,048 4.7 5.7 22
62 NIWS Co, Ltd
Japan
eServer Blue Gene Solution
IBM
2,048 4.7 5.7 22
63 UCSD/San Diego Supercomputer Center
United States
Intimidata - eServer Blue Gene Solution
IBM
2,048 4.7 5.7 22
64 University of Edinburgh
United Kingdom
eServer Blue Gene Solution
IBM
2,048 4.7 5.7 22
65 KTH - Royal Institute of Technology
Sweden
Lenngren - PowerEdge 1850, 3.2 GHz, Infiniband
Dell
886 4.7 5.7
66 University of Illinois
United States
Turing - XServe G5 2GHz, Myrinet
Self-made
1,024 4.6 8.2
67 Kyoto University
Japan
PRIMEPOWER HPC2500 (1.56 GHz)
Fujitsu
1,472 4.6 9.2
68 Pittsburgh Supercomputing Center
United States
AlphaServer SC45, 1 GHz
Hewlett-Packard
3,016 4.5 6.0
69 NOAA R&D/ National Centers for Environmental Prediction
United States
eServer pSeries 655 (1.7 GHz Power4+)
IBM
1,152 4.4 7.8
70 NOAA R&D/ National Centers for Environmental Prediction
United States
eServer pSeries 655 (1.7 GHz Power4+)
IBM
1,152 4.4 7.8
71 Caltech/JPL
United States
Cosmos - PowerEdge 1750, P4 Xeon 3.2 GHz, Myrinet
Dell
1,024 4.3 6.6
72 Computer Network Information Center, Chinese Academy of Science
China
DeepComp 6800, Itanium2 1.3 GHz, QsNet
lenovo
1,024 4.2 5.3
73 NCAR (National Center for Atmospheric Research)
United States
pSeries 690 Turbo 1.3 GHz
IBM
1,600 4.2 8.3
74 Texas Advanced Computing Center/Univ. of Texas
United States
lonestar - PowerEdge 1750, Pentium4 Xeon 3.2/3.06 GHz, Myrinet
Dell-Cray
1,024 4.2 6.3
75 DOE/Bettis Atomic Power Laboratory
United States
Atipa Cluster, Opteron, Myrinet
Atipa Technology
1,090 4.0 5.2
76 DOE/Knolls Atomic Power Laboratory
United States
Atipa Cluster, Opteron, Myrinet
Atipa Technology
1,090 4.0 5.2
77 Commissariat a l'Energie Atomique (CEA)
France
AlphaServer SC45, 1 GHz
Hewlett-Packard
2,560 4.0 5.1
78 Lawrence Livermore National Laboratory
United States
eServer pSeries 655 (1.5 GHz Power4+)
IBM
1,024 3.8 6.1
79 Lawrence Livermore National Laboratory
United States
eServer pSeries 655 (1.5 GHz Power4+)
IBM
1,024 3.8 6.1
80 Korea Meteorological Administration
Korea, South
Cray X1E
Cray Inc.
252 3.8 4.6
81 US Army HPC Research Center at NCS
United States
Cray X1E
Cray Inc.
252 3.8 4.6
82 Bank (H)
Germany
BladeCenter Xeon 3.06 GHz, Gig-Ethernet
IBM
1,064 3.8 6.5
83 Bank (L)
United Kingdom
BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet
IBM
3,200 3.8 19.6
84 ConocoPhillips
United States
BladeCenter Xeon 3.06 GHz, Gig-Ethernet
IBM
1,056 3.8 6.5
85 Credit Suisse/First Boston
United Kingdom
BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet
IBM
1,500 3.8 9.2
86 Digital Content Provider
Australia
BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet
IBM
1,148 3.8 7.0
87 Financial Services (H)
United States
BladeCenter HS20 Cluster, Xeon 3.2 GHz, GigEthernet
IBM
1,024 3.8 6.6 167
88 Geoscience (B)
India
BladeCenter HS20 Cluster, Xeon EM64T 3.4 GHz - Gig-Ethernet
IBM
1,024 3.8 7.0 167
89 Geoscience (C)
United Kingdom
xSeries Xeon 3.06 GHz - Gig-E
IBM
1,128 3.8 6.9
90 Geoscience (C)
United Kingdom
xSeries Xeon 3.06 GHz - Gig-E
IBM
1,128 3.8 6.9
91 IBM - Deep Computing Capacity on Demand Center
United States
xSeries Xeon 3.06 GHz - Gig-E
IBM
1,000 3.8 6.1
92 Petroleum Company (C)
Brazil
xSeries Cluster Xeon 3.06 GHz - Gig-E
IBM
1,024 3.8 6.3
93 PGS
United States
xSeries Cluster Xeon 3.06 GHz - Gig-E
IBM
1,024 3.8 6.3
94 Saudi Aramco
Saudi Arabia
BladeCenter HS20 Cluster, Xeon 3.2 GHz, GigEthernet
IBM
1,536 3.8 9.8 251
95 Semiconductor Company (D)
Israel
xSeries Xeon 3.06 GHz - Gig-E
IBM
1,120 3.8 6.9
96 Telco
Canada
BladeCenter HS20 Cluster, Xeon 3.2 GHz, GigEthernet
IBM
1,036 3.8 6.6 169
97 Westgrid
Canada
glacier - BladeCenter Xeon 3.06 GHz, Gig-Ethernet
IBM
1,680 3.8 10.3
98 WETA Digital
New Zealand
BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz - Gig-Ethernet
IBM
1,000 3.8 7.2 163
99 PetrĂ³leo Brasileiro S.A
Brazil
bwr1 - Cluster Platform 3000 DL140G3 Xeon 3.06 GHz GigEthernet
Hewlett-Packard
1,300 3.7 8.0
100 Naval Oceanographic Office - NAVO DSRC
United States
pSeries 690 Turbo 1.3 GHz
IBM
1,408 3.7 7.3