Top500 List - June 2008

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/LANL
United States
Roadrunner - BladeCenter QS22/LS21 Cluster, PowerXCell 8i 3.2 Ghz / Opteron DC 1.8 GHz, Voltaire Infiniband
IBM
122400 1,026.0 1,375.8 2,345
2 DOE/NNSA/LLNL
United States
BlueGene/L - eServer Blue Gene Solution
IBM
212992 478.2 596.4 2,329
3 National Institute for Computational Sciences/University of Tennessee
United States
Kraken XT5 - Cray XT5 QC 2.3 GHz
Cray Inc.
66000 463.3 607.2
4 DOE/SC/Argonne National Laboratory
United States
Intrepid - Blue Gene/P Solution
IBM
163840 450.3 557.1 1,260
5 Texas Advanced Computing Center/Univ. of Texas
United States
Ranger - SunBlade x6420, Opteron Quad 2Ghz, Infiniband
Oracle
62976 326.0 503.8 2,000
6 DOE/SC/Oak Ridge National Laboratory
United States
Jaguar - Cray XT4 QuadCore 2.1 GHz
Cray Inc.
30976 205.0 260.2 1,580
7 Forschungszentrum Juelich (FZJ)
Germany
JUGENE - Blue Gene/P Solution
IBM
65536 180.0 222.8 504
8 New Mexico Computing Applications Center (NMCAC)
United States
Encanto - SGI Altix ICE 8200, Xeon quad core 3.0 GHz
SGI
14336 133.2 172.0 861
9 Computational Research Laboratories, TATA SONS
India
EKA - Cluster Platform 3000 BL460c, Xeon 53xx 3GHz, Infiniband
Hewlett-Packard
14384 132.8 172.6 786
10 IDRIS
France
Blue Gene/P Solution
IBM
40960 112.5 139.3 315
11 Total Exploration Production
France
SGI Altix ICE 8200EX, Xeon quad core 3.0 GHz
SGI
10240 106.1 122.9 442
12 Government Agency
Sweden
Cluster Platform 3000 BL460c, Xeon 53xx 2.66GHz, Infiniband
Hewlett-Packard
13728 102.8 146.4
13 NNSA/Sandia National Laboratories
United States
Red Storm - Sandia/ Cray Red Storm, Opteron 2.4 GHz dual core
Cray Inc.
26569 102.2 127.5
14 EDF R&D
France
Frontier2 BG/L - Blue Gene/P Solution
IBM
32768 93.0 111.4 252
15 IBM Thomas J. Watson Research Center
United States
BGW - eServer Blue Gene Solution
IBM
40960 91.3 114.7 448
16 DOE/SC/LBNL/NERSC
United States
Franklin - Cray XT4, 2.6 GHz
Cray Inc.
19320 85.4 100.5 1,150
17 Information Technology Center, The University of Tokyo
Japan
T2K Open Supercomputer (Todai Combined Cluster) - Hitachi Cluster Opteron QC 2.3 GHz, Myrinet 10G
Hitachi
12288 83.0 113.0 638
18 Stony Brook/BNL, New York Center for Computational Sciences
United States
New York Blue - eServer Blue Gene Solution
IBM
36864 82.2 103.2 403
19 ECMWF
United Kingdom
Power 575, p6 4.7 GHz, Infiniband
IBM
8320 80.3 156.4 1,329
20 Max-Planck-Gesellschaft MPI/IPP
Germany
VIP - Power 575, p6 4.7 GHz, Infiniband
IBM
6720 80.3 126.3 1,073
21 Center for Computational Sciences, University of Tsukuba
Japan
T2K Open Supercomputer - Appro Xtreme-X3 Server - Quad Opteron Quad Core 2.3 GHz, Infiniband
Cray Inc.
10000 76.5 92.0 671
22 DOE/NNSA/LLNL
United States
ASC Purple - eServer pSeries p5 575 1.9 GHz
IBM
12208 75.8 92.8 1,992
23 Rensselaer Polytechnic Institute, Computational Center for Nanotechnology Innovations
United States
eServer Blue Gene Solution
IBM
32768 73.0 91.8 358
24 NCSA
United States
Abe - PowerEdge 1955, 2.33 GHz, Infiniband, Windows Server 2008/Red Hat Enterprise Linux 4
Dell
9600 68.5 89.6
25 GSIC Center, Tokyo Institute of Technology
Japan
TSUBAME Grid Cluster with CompView TSUBASA - Sun Fire x4600/x6250 Cluster, Opteron 2.4/2.6 GHz and ClearSpeed Accelerator, Xeon E5440 2.833 GHz, Infiniband
NEC/Sun
12344 67.7 109.7
26 NASA/Ames Research Center/NAS
United States
Columbia - SGI Altix 1.5/1.6/1.66 GHz, Voltaire Infiniband
SGI
13824 66.6 82.9
27 Barcelona Supercomputing Center
Spain
MareNostrum - BladeCenter JS21 Cluster, PPC 970, 2.3 GHz, Myrinet
IBM
10240 63.8 94.2
28 Leibniz Rechenzentrum
Germany
HLRB-II - Altix 4700 1.6 GHz
SGI
9728 56.5 62.3 990
29 ERDC DSRC
United States
Jade - Cray XT4 QuadCore 2.1 GHz
Cray Inc.
8464 56.2 71.1 418
30 University of Edinburgh
United Kingdom
HECToR - Cray XT4, 2.8 GHz
Cray Inc.
11328 54.6 63.4
31 NCAR (National Center for Atmospheric Research)
United States
bluefire - Power 575, p6 4.7 GHz, Infiniband
IBM
4064 54.1 76.4 649
32 NNSA/Sandia National Laboratories
United States
Thunderbird - PowerEdge 1850, 3.6 GHz, Infiniband
Dell
9024 53.0 65.0
33 Commissariat a l'Energie Atomique (CEA)
France
Tera-10 - NovaScale 5160, Itanium2 1.6 GHz, Quadrics
Bull SA
9968 52.8 63.8
34 Air Force Research Laboratory
United States
Hawk - Altix 4700 1.6 GHz
SGI
9216 51.4 59.0
35 Kyoto University
Japan
T2K Open Supercomputer/Kyodai - Fujitsu Cluster HX600, Opteron Quad Core, 2.3 GHz, Infiniband
Fujitsu
6656 50.5 61.2
36 IBM/ECMWF
United States
Power 575, p6 4.7 GHz, Infiniband
IBM
3520 48.0 66.2 562
37 Moscow State University - Research Computing Center
Russia
SKIF MSU - T-Platforms T60, Intel Quadcore 3Ghz, Infiniband DDR
SKIF/T-Platforms
5000 47.2 60.0 265
38 IBM Rochester
United States
Blue Gene/P Solution
IBM
16384 46.8 55.7 126
39 Texas Advanced Computing Center/Univ. of Texas
United States
Lonestar - PowerEdge 1955, 2.66 GHz, Infiniband
Dell
5848 46.7 62.2
40 HPC2N - Umea University
Sweden
Akka - BladeCenter HS21 Cluster, Xeon QC HT 2.5 GHz, IB, Windows HPC 2008/CentOS
IBM
5376 46.0 53.8 173
41 National Supercomputer Centre (NSC)
Sweden
Cluster Platform 3000 DL140 Cluster, Xeon 2.33GHz Infiniband
Hewlett-Packard
6400 44.5 59.6
42 Maui High-Performance Computing Center (MHPCC)
United States
Jaws - PowerEdge 1955, 3.0 GHz, Infiniband
Dell
5200 42.4 62.4
43 Commissariat a l'Energie Atomique (CEA)
France
CEA-CCRT-Platine - Novascale 3045, Itanium2 1.6 GHz, Infiniband
Bull SA
7680 42.1 49.2
44 US Army Research Laboratory (ARL)
United States
Michael J. Muuss Cluster (MJM) - Evolocity II (LS Supersystem) Xeon 51xx 3.0 GHz IB
Linux Networx
4416 40.6 53.0
45 R-Systems
United States
R Smarr - Dell DCS CS23-SH, QC HT 2.8 GHz, Infiniband
Dell
4608 39.6 51.6
46 Gdansk University of Technology, CI Task
Poland
Galera - ACTION Cluster Xeon E5345 Infiniband
ACTION
5336 38.2 49.7
47 Forschungszentrum Juelich (FZJ)
Germany
JUBL - eServer Blue Gene Solution
IBM
16384 37.3 45.9 179
48 University of Bergen
Norway
Cray XT4 QuadCore 2.3 GHz
Cray Inc.
5548 36.9 51.0
49 Lawrence Livermore National Laboratory
United States
Atlas - Appro Xtreme Server - Quad Opteron Dual Core 2.4GHz Infiniband
Cray Inc.
9216 36.6 44.2
50 Japan Agency for Marine -Earth Science and Technology
Japan
Earth-Simulator
NEC
5120 35.9 41.0 3,200
51 ERDC DSRC
United States
Sapphire - Cray XT3, 2.6 GHz dual Core
Cray Inc.
8192 35.2 42.6
52 ASTRON/University Groningen
Netherlands
Blue Gene/P Solution
IBM
12288 35.1 41.8 94
53 Max-Planck-Gesellschaft MPI/IPP
Germany
Genius - Blue Gene/P Solution
IBM
12288 35.1 41.8 94
54 Turboinstitute
Slovenia
BladeCenter HS21 Cluster, Xeon QC HT 3 GHz, Infiniband
IBM
4096 35.1 49.2 162
55 Louisiana Optical Network Initiative
United States
Queen Bee - PowerEdge 1950, 2.33 GHz, Infiniband
Dell
5440 34.8 50.8
56 AWE
United Kingdom
Cray XT3, 2.6 GHz dual Core
Cray Inc.
7812 33.9 40.6
57 Joint Supercomputer Center
Russia
Cluster Platform 3000 BL460c, Xeon 53xx 3GHz, Infiniband
Hewlett-Packard
3760 33.9 45.1 418
58 National Institute for Computational Sciences/University of Tennessee
United States
Kraken - Cray XT3, 2.6 GHz dual Core
Cray Inc.
7482 32.8 38.9
59 Max-Planck-Gesellschaft MPI/Albert-Einstein-Institut
Germany
ATLAS - Pyramid Cluster Xeon QC 32xx 2.4 GHz, GigEthernet
Pyramid Computer
5420 32.8 52.0 201
60 NASA/Ames Research Center/NAS
United States
SGI Altix ICE 8200, 2.66 GHz
SGI
4096 32.5 43.6
61 Harvard University - FAS Research Computing
United States
Odyssey - PowerEdge M600 Cluster, Xeon E5410 2.3Ghz, Infiniband
Dell
4096 32.4 38.2
62 University of Tromso
Norway
Stallo - Cluster Platform 3000 BL460c, Xeon 53xx 2.66GHz, GigEthernet
Hewlett-Packard
5632 31.9 59.9
63 Clemson University
United States
Palmetto - PowerEdge 1950, Quad Core 2.33 GHz, Myrinet 10G
Dell
4096 31.1 38.2
64 University of Southern California
United States
HPC - PowerEdge 1950, Quad Core 3.2 GHz, Myrinet 10G
Dell
4096 31.0 52.4
65 Logistic Services (E)
United States
Cluster Platform 3000 BL460c, Xeon 54xx 3.0GHz, GigEthernet
Hewlett-Packard
4584 29.4 55.0 510
66 HWW/Universitaet Stuttgart
Germany
BladeCenter HS21 Cluster, Xeon QC HT 2.83 GHz, Infiniband
IBM
3424 29.3 38.8 134
67 University of Bristol
United Kingdom
BlueCrystal - xSeries x3450 Cluster Xeon quad core, 2.8 GHz, Infiniband
ClusterVision/IBM
3360 28.8 37.6 135
68 University of North Carolina
United States
Topsail - PowerEdge 1955, 2.33 GHz, Cisco/Topspin Infiniband
Dell
4160 28.8 38.8
69 ASTRON/University Groningen
Netherlands
Stella - eServer Blue Gene Solution
IBM
12288 27.4 34.4 134
70 Lawrence Livermore National Laboratory
United States
Minos - Appro Xtreme Server - Quad Opteron Dual Core 2.4GHz Infiniband
Cray Inc.
6912 27.4 33.2
71 CSC (Center for Scientific Computing)
Finland
Cray XT4 QuadCore 2.3 GHz
Cray Inc.
4032 26.8 37.1
72 HLRN at Universitaet Hannover / RRZN
Germany
SGI Altix ICE 8200EX, Xeon quad core 3.0 GHz
SGI
2560 26.7 30.7 129
73 HLRN at ZIB/Konrad Zuse-Zentrum Berlin
Germany
SGI Altix ICE 8200EX, Xeon quad core 3.0 GHz
SGI
2560 26.7 30.7 129
74 SARA (Stichting Academisch Rekencentrum)
Netherlands
Power 575, p6 4.7 GHz, Infiniband
IBM
1536 23.5 28.9 245
75 DOE/SC/Oak Ridge National Laboratory
United States
Blue Gene/P Solution
IBM
8192 23.4 27.9 63
76 Stony Brook/BNL, New York Center for Computational Sciences
United States
New York Blue - Blue Gene/P Solution
IBM
8192 23.4 27.9 63
77 National Astronomical Observatory of Japan
Japan
Cray XT4 QuadCore 2.2 GHz
Cray Inc.
3248 22.7 28.6 160
78 Caltech
United States
CITerra - PowerEdge 1950, 2.33 GHz, Myrinet
Dell
4096 22.6 37.7
79 Intel
United States
Endeavor - Intel Cluster, Xeon E54xx, 2.8 GHz, Infiniband
Intel
2296 21.8 25.7
80 Indiana University
United States
Big Red - BladeCenter JS21 Cluster, PPC 970, 2.5 GHz, Myrinet
IBM
3072 21.8 30.7
81 Holland Computing Center at PKI
United States
Firefly - PowerEdge SC1435 Dual core Opteron 2.8 GHz, Infiniband
Dell
4604 21.5 25.8
82 Audi AG
Germany
Cluster Platform 3000 BL460c, Xeon 51xx 3.0GHz, Infiniband DDR
Hewlett-Packard
2432 21.0 29.2
83 Government Classified
United States
Cluster Platform 6000 rx1620, Itanium2 1.6 GHz, Quadrics
Hewlett-Packard
4096 20.4 26.2
84 IBM Advanced Client Technology Center
United States
eServer pSeries p5 575 1.9 GHz
IBM
3072 20.1 23.3 501
85 Naval Oceanographic Office - NAVO DSRC
United States
eServer pSeries p5 575 1.9 GHz
IBM
3072 20.1 23.3 501
86 University of Reading
United Kingdom
BladeCenter JS21 Cluster, PPC 970, 2.5 GHz, Myrinet
IBM
2800 20.1 28.0
87 NOAA R&D/ National Centers for Environmental Prediction
United States
Power 575, p6 4.7 GHz, Infiniband
IBM
1312 20.0 24.7 209
88 Cray Inc.
United States
Cray XT5 QC 2.3 GHz
Cray Inc.
2848 20.0 26.2
89 Cardiff University - ARCCA
United Kingdom
Merlin - Novascale R422 Cluster, Xeon E5472, 3.00 GHz, Infiniband
Bull SA
2048 20.0 24.6
90 Lawrence Livermore National Laboratory
United States
Thunder - Intel Itanium2 Tiger4 1.4GHz - Quadrics
California Digital Corporation
4096 19.9 22.9
91 CINECA
Italy
BladeCenter HS21 Cluster, Xeon dual core 3.0 GHz, Infiniband
IBM
5120 19.9 61.4 488
92 National Center for High Performance Computing
Taiwan
xSeries x3550 Cluster Xeon, 3 GHz, Infiniband
IBM
2080 19.9 25.0 193
93 Energy Company (G)
United States
Cluster Platform 3000 BL460c, Xeon 54xx 3.0GHz, GigEthernet
Hewlett-Packard
3072 19.8 36.9 342
94 Energy Company (G)
United States
Cluster Platform 3000 BL460c, Xeon 54xx 3.0GHz, GigEthernet
Hewlett-Packard
3072 19.8 36.9 342
95 Energy Company (G)
United States
Cluster Platform 3000 BL460c, Xeon 54xx 3.0GHz, GigEthernet
Hewlett-Packard
3072 19.8 36.9 342
96 Energy Company (G)
United States
Cluster Platform 3000 BL460c, Xeon 54xx 3.0GHz, GigEthernet
Hewlett-Packard
3072 19.8 36.9 342
97 CERN
Switzerland
NOW Cluster - Intel Xeon 53xx, 2.33 GHz, GigEthernet
Self-made
3760 19.7 35.0
98 SGI
United States
SGI Altix ICE 8200, 3.0 GHz
SGI
2048 19.4 24.6
99 Universitt Ulm/ Universitt Konstanz
Germany
BladeCenter HS21 Cluster, Xeon QC HT 2.83 GHz, Infiniband
IBM
2240 19.2 25.4 88
100 University College London (UCL)
United Kingdom
PowerEdge 1950, Xeon 51xx 3.06 GHz, Infinipath
ClusterVision/Dell
1992 18.9 24.4 330