Rank Site
Country/Year Computer / Processors
Manufacturer Rmax
Rpeak
1 DOE/NNSA/LLNL
United States/2005 BlueGene/L
eServer Blue Gene Solution / 65536
IBM 136800
183500
2 IBM Thomas J. Watson Research Center
United States/2005 BGW
eServer Blue Gene Solution / 40960
IBM 91290
114688
3 NASA/Ames Research Center/NAS
United States/2004 Columbia
SGI Altix 1.5 GHz, Voltaire Infiniband / 10160
SGI 51870
60960
4 The Earth Simulator Center
Japan/2002 Earth-Simulator / 5120
NEC 35860
40960
5 Barcelona Supercomputer Center
Spain/2005 MareNostrum
JS20 Cluster, PPC 970, 2.2 GHz, Myrinet / 4800
IBM 27910
42144
6 ASTRON/University Groningen
Netherlands/2005 eServer Blue Gene Solution / 12288
IBM 27450
34406.4
7 Lawrence Livermore National Laboratory
United States/2004 Thunder
Intel Itanium2 Tiger4 1.4GHz - Quadrics / 4096
California Digital Corporation 19940
22938
8 Computational Biology Research Center, AIST
Japan/2005 Blue Protein
eServer Blue Gene Solution / 8192
IBM 18200
22937.6
9 Ecole Polytechnique Federale de Lausanne
Switzerland/2005 eServer Blue Gene Solution / 8192
IBM 18200
22937.6
10 Sandia National Laboratories
United States/2005 Red Storm, Cray XT3, 2.0 GHz / 5000
Cray Inc. 15250
20000
11 Oak Ridge National Laboratory
United States/2005 Cray XT3, 2.4 GHz / 3748
Cray Inc. 14170
17990
12 Los Alamos National Laboratory
United States/2002 ASCI Q
ASCI Q - AlphaServer SC45, 1.25 GHz / 8192
Hewlett-Packard 13880
20480
13 Lawrence Livermore National Laboratory
United States/2005 eServer pSeries p5 575 1.9 GHz / 2048
IBM 13090
15564.8
14 Virginia Tech
United States/2004 System X
1100 Dual 2.3 GHz Apple XServe/Mellanox Infiniband 4X/Cisco GigE / 2200
Self-made 12250
20240
15 Japan Atomic Energy Research Institute
Japan/2005 SGI Altix 3700 Bx2, 1.6 GHz, NUMALink / 2048
SGI 11814
13107
16 IBM - Rochester
United States/2004 BlueGene/L DD1 Prototype (0.5GHz PowerPC 440 w/Custom) / 8192
IBM/ LLNL 11680
16384
17 Wright-Patterson Air Force Base/DoD ASC
United States/2003 SGI Altix 3700 Bx2, 1.6 GHz, NUMALink / 2048
SGI 11652
13107
18 China Meteorological Administration
China/2005 eServer pSeries 655 (1.7 GHz Power4+) / 3200
IBM 10310
21760
19 Naval Oceanographic Office (NAVOCEANO)
United States/2004 eServer pSeries 655 (1.7 GHz Power4+) / 2944
IBM 10310
20019.2
20 NCSA
United States/2003 Tungsten
PowerEdge 1750, P4 Xeon 3.06 GHz, Myrinet / 2500
Dell 9819
15300
21 IBM - Almaden Research Center
United States/2005 eServer Blue Gene Solution / 4096
IBM 9360
11468.8
22 IBM - Deep Computing Capacity on Demand Center
United States/2005 eServer Blue Gene Solution / 4096
IBM 9360
11468.8
23 IBM Thomas J. Watson Research Center
United States/2005 eServer Blue Gene Solution / 4096
IBM/ LLNL 9360
11468.8
24 ECMWF
United Kingdom/2004 eServer pSeries 690 (1.9 GHz Power4+) / 2176
IBM 9241
16538
25 ECMWF
United Kingdom/2004 eServer pSeries 690 (1.9 GHz Power4+) / 2176
IBM 9241
16538
26 Australian Partnership for Advanced Computing (APAC)
Australia/2005 SGI Altix 3700 Bx2, 1.6 GHz, NUMALink / 1536
SGI 8974
9830
27 HWW/Universitaet Stuttgart
Germany/2005 SX8/576M72 / 576
NEC 8923
9216
28 US Army Research Laboratory (ARL)
United States/2004 John Von Neumann
LNX Cluster, Xeon 3.4 GHz, Myrinet / 2048
Linux Networx 8770
13926
29 Institute of Physical and Chemical Res. (RIKEN)
Japan/2004 RIKEN Super Combined Cluster / 2048
Fujitsu 8728
12534
30 Pacific Northwest National Laboratory
United States/2003 Mpp2
Cluster Platform 6000 rx2600 Itanium2 1.5 GHz, Quadrics / 1936
Hewlett-Packard 8633
11616
31 Shanghai Supercomputer Center
China/2004 Dawning 4000A, Opteron 2.2 GHz, Myrinet / 2560
Dawning 8061
11264
32 Los Alamos National Laboratory
United States/2003 Lightning
Opteron 2 GHz, Myrinet / 2816
Linux Networx 8051
11264
33 Pittsburgh Supercomputing Center
United States/2005 Cray XT3, 2.4 GHz / 2060
Cray Inc. 7935.82
9888
34 Lawrence Livermore National Laboratory
United States/2002 MCR Linux Cluster Xeon 2.4 GHz - Quadrics / 2304
Linux Networx/Quadrics 7634
11060
35 Lawrence Livermore National Laboratory
United States/2000 ASCI White, SP Power3 375 MHz / 8192
IBM 7304
12288
36 NERSC/LBNL
United States/2002 Seaborg
SP Power3 375 MHz 16 way / 6656
IBM 7304
9984
37 University of Southern California
United States/2005 HPC
Sun Fire V60, IBM xServer,2.8-3.2 GHz, Myrinet / 2640
IBM, Sun, Myricom 7291
14784
38 NCSA
United States/2004 TeraGrid, Itanium2 1.3/1.5 GHZ, Myrinet / 1776
IBM 7215
10259
39 US Army Research Laboratory (ARL)
United States/2004 eServer Opteron 2.2 GHz. Myrinet / 2320
IBM 7185
10208
40 University of Sherbrooke
Canada/2005 Mp
PowerEdge SC1425 3.6 GHz- Infiniband / 1152
Dell 6888
8294.4
Rank Site
Country/Year Computer / Processors
Manufacturer Rmax
Rpeak
41 Nagoya University
Japan/2005 PRIMEPOWER HPC2500 (2.08 GHz) / 1664
Fujitsu 6860
13844
42 Lawrence Livermore National Laboratory
United States/2003 xSeries Cluster Xeon 2.4 GHz - Quadrics / 1920
IBM/Quadrics 6586
9216
43 UCSD/San Diego Supercomputer Center
United States/2004 DataStar
eServer pSeries 655/690 (1.5/1.7 Ghz Power4+) / 1696
IBM 6385
10406
44 Lawrence Livermore National Laboratory
United States/2004 Lilac
xSeries Xeon 3.06 GHz, Quadrics / 1540
IBM 6232
9425
45 HPCx
United Kingdom/2004 eServer pSeries 690 (1.7 GHz Power4+) / 1600
IBM 6188
10880
46 Grid Technology Research Center, AIST
Japan/2004 AIST Super Cluster P-32
AIST Super Cluster P-32, Opteron 2.0 GHz, Myrinet / 2200
IBM 6155
8800
47 NCSA
United States/2005 Tungsten 2
PowerEdge 1850, 3.6 GHz, Infiniband / 1024
Dell 6118
7373
48 NCSA
United States/2005 SGI Altix 3700 Bx2, 1.6 GHz, NUMALink / 1024
SGI 6117.27
6553
49 Lawrence Livermore National Laboratory
United States/2005 eServer pSeries p5 575 1.9 GHz / 896
IBM 5917
6809.6
50 Oak Ridge National Laboratory
United States/2004 Cray X1 / 504
Cray Inc. 5895
6451
51 Seoul National University
Korea, South/2005 eServer BladeCenter JS20 (PowerPC970 2.2 GHz), Myrinet / 968
IBM 5618.3
8518.4
52 Forschungszentrum Juelich (FZJ)
Germany/2004 eServer pSeries 690 (1.7 GHz Power4+) / 1312
IBM 5568
8921
53 Brigham Young University
United States/2005 Marylou4
PowerEdge 1855, 3.6 GHz, GigEthernet / 1260
Dell 5439
9072
54 University of Oklahoma
United States/2005 Topdawg
PowerEdge 1850, 3.2 GHz, Infiniband / 1024
Dell 5438
6553.6
55 National Aerospace Laboratory of Japan
Japan/2002 PRIMEPOWER HPC2500 (1.3 GHz) / 2304
Fujitsu 5406
11980
56 Joint Supercomputer Center
Russia/2005 MVS-15000BM, eServer BladeCenter JS20 (PowerPC970 2.2 GHz), Myrinet / 924
IBM 5355
8131.2
57 Swiss Scientific Computing Center (CSCS)
Switzerland/2005 Cray XT3, 2.6 GHz / 1100
Cray Inc. 4782
5720
58 Argonne National Laboratory
United States/2005 eServer Blue Gene Solution / 2048
IBM 4713
5734
59 Boston University
United States/2005 eServer Blue Gene Solution / 2048
IBM 4713
5734
60 Forschungszentrum Juelich (FZJ)
Germany/2005 eServer Blue Gene Solution / 2048
IBM 4713
5734
61 NCAR (National Center for Atmospheric Research)
United States/2005 eServer Blue Gene Solution / 2048
IBM 4713
5734
62 NIWS Co, Ltd
Japan/2005 eServer Blue Gene Solution / 2048
IBM 4713
5734
63 UCSD/San Diego Supercomputer Center
United States/2005 Intimidata
eServer Blue Gene Solution / 2048
IBM 4713
5734
64 University of Edinburgh
United Kingdom/2005 eServer Blue Gene Solution / 2048
IBM 4713
5734
65 KTH - Royal Institute of Technology
Sweden/2005 Lenngren
PowerEdge 1850, 3.2 GHz, Infiniband / 886
Dell 4700
5670.4
66 University of Illinois
United States/2005 Turing
XServe G5 2GHz, Myrinet / 1024
Self-made 4559
8192
67 Kyoto University
Japan/2004 PRIMEPOWER HPC2500 (1.56 GHz) / 1472
Fujitsu 4552
9185
68 Pittsburgh Supercomputing Center
United States/2001 AlphaServer SC45, 1 GHz / 3016
Hewlett-Packard 4463
6032
69 National Centers for Environmental Prediction
United States/2004 eServer pSeries 655 (1.7 GHz Power4+) / 1152
IBM 4379
7833.6
70 National Centers for Environmental Prediction
United States/2004 eServer pSeries 655 (1.7 GHz Power4+) / 1152
IBM 4379
7833.6
71 Caltech/JPL
United States/2004 Cosmos
PowerEdge 1750, P4 Xeon 3.2 GHz, Myrinet / 1024
Dell 4298
6553.6
72 Chinese Academy of Science
China/2003 DeepComp 6800, Itanium2 1.3 GHz, QsNet / 1024
lenovo 4193
5324.8
73 NCAR (National Center for Atmospheric Research)
United States/2003 pSeries 690 Turbo 1.3 GHz / 1600
IBM 4184
8320
74 Texas Advanced Computing Center/Univ. of Texas
United States/2004 lonestar
PowerEdge 1750, Pentium4 Xeon 3.2/3.06 GHz, Myrinet / 1024
Dell-Cray 4152
6338
75 DOE/Bettis Atomic Power Laboratory
United States/2005 Atipa Cluster, Opteron, Myrinet / 1090
Atipa Technology 4035
5232
76 DOE/Knolls Atomic Power Laboratory
United States/2005 Atipa Cluster, Opteron, Myrinet / 1090
Atipa Technology 4035
5232
77 Commissariat a l'Energie Atomique (CEA)
France/2001 AlphaServer SC45, 1 GHz / 2560
Hewlett-Packard 3980
5120
78 Lawrence Livermore National Laboratory
United States/2004 eServer pSeries 655 (1.5 GHz Power4+) / 1024
IBM 3812
6144
79 Lawrence Livermore National Laboratory
United States/2004 eServer pSeries 655 (1.5 GHz Power4+) / 1024
IBM 3812
6144
80 Korea Meteorological Administration
Korea, South/2005 Cray X1E / 252
Cray Inc. 3783.1
4556.16
Rank Site
Country/Year Computer / Processors
Manufacturer Rmax
Rpeak
81 US Army HPC Research Center at NCS
United States/2005 Cray X1E / 252
Cray Inc. 3783.1
4556.16
82 Bank
United Kingdom/2004 BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet / 3200
IBM 3755
19584
83 Westgrid
Canada/2005 BladeCenter Xeon 3.06 GHz, Gig-Ethernet / 1680
IBM 3755
10281.6
84 Petroleum Company (G)
Saudia Arabia/2004 BladeCenter HS20 Xeon 3.2 GHz, Gig-Ethernet / 1536
IBM 3755
9830.4
85 Credit Suisse/First Boston
United Kingdom/2004 BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet / 1500
IBM 3755
9180
86 Animal Logic
Australia/2005 BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet / 1148
IBM 3755
7025.76
87 Geoscience (B)
India/2005 HS20 Cluster, Xeon EM64T 3.4 GHz - Gig-Ethernet / 1024
IBM 3755
6963.2
88 Geoscience (C)
United Kingdom/2004 xSeries Xeon 3.06 GHz - Gig-E / 1128
IBM 3755
6903.36
89 Geoscience (C)
United Kingdom/2004 xSeries Xeon 3.06 GHz - Gig-E / 1128
IBM 3755
6903.36
90 Semiconductor Company (D)
Israel/2004 xSeries Xeon 3.06 GHz - Gig-E / 1120
IBM 3755
6854.4
91 Financial Services (H)
United States/2005 BladeCenter HS20 Xeon 3.2 GHz, Gig-Ethernet / 1024
IBM 3755
6553.6
92 Bank (H)
Germany/2004 BladeCenter Xeon 3.06 GHz, Gig-Ethernet / 1064
IBM 3755
6511.68
93 ConocoPhillips
United States/2004 BladeCenter Xeon 3.06 GHz, Gig-Ethernet / 1056
IBM 3755
6462.72
94 PGS
United States/2003 xSeries Cluster Xeon 3.06 GHz - Gig-E / 1024
IBM 3755
6266.88
95 Petroleum Company (C)
Brazil/2004 xSeries Cluster Xeon 3.06 GHz - Gig-E / 1024
IBM 3755
6266.88
96 IBM - Deep Computing Capacity on Demand Center
United States/2004 xSeries Xeon 3.06 GHz - Gig-E / 1000
IBM 3755
6120
97 PETROBRAS
Brazil/2004 bwr1
Cluster Platform 3000 DL140G3 Xeon 3.06 GHz GigEthernet / 1300
Hewlett-Packard 3739
7956
98 Naval Oceanographic Office (NAVOCEANO)
United States/2004 pSeries 690 Turbo 1.3 GHz / 1408
IBM 3717.2
7321.6
99 WETA Digital
New Zealand/2005 HS20 Cluster, Xeon EM64T 3.6 GHz - Gig-Ethernet / 1000
IBM 3666.99
7200
100 Galactic Computing (Shenzhen) Ltd.
China/2005 Supercomputing Blade System GT4000 / 562
Galactic Computing 3413
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