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TOP500 List - June 2007

R_max and R_peak values are in TFlop/s. For more details about other fields, check the TOP500 description.

R_peak 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	System	Cores	Rmax (TFlop/s)	Rpeak (TFlop/s)	Power (kW)
1	BlueGene/L - eServer Blue Gene Solution, IBM DOE/NNSA/LLNL United States	131,072	280.60	367.00	1,433
2	Jaguar - Cray XT4/XT3, Cray/HPE DOE/SC/Oak Ridge National Laboratory United States	23,016	101.70	119.35
3	Red Storm - Sandia/ Cray Red Storm, Opteron 2.4 GHz dual core, Cray/HPE NNSA/Sandia National Laboratories United States	26,544	101.40	127.41
4	BGW - eServer Blue Gene Solution, IBM IBM Thomas J. Watson Research Center United States	40,960	91.29	114.69	448
5	New York Blue - eServer Blue Gene Solution, IBM Stony Brook/BNL, New York Center for Computational Sciences United States	36,864	82.16	103.22	403
6	ASC Purple - eServer pSeries p5 575 1.9 GHz, IBM DOE/NNSA/LLNL United States	12,208	75.76	92.78	1,992
7	eServer Blue Gene Solution, IBM Rensselaer Polytechnic Institute, Computational Center for Nanotechnology Innovations United States	32,768	73.03	91.75	358
8	Abe - PowerEdge 1955, 2.33 GHz, Infiniband, Windows Server 2008/Red Hat Enterprise Linux 4, DELL NCSA United States	9,600	62.68	89.59
9	MareNostrum - BladeCenter JS21 Cluster, PPC 970, 2.3 GHz, Myrinet, IBM Barcelona Supercomputing Center Spain	10,240	62.63	94.21
10	HLRB-II - Altix 4700 1.6 GHz, HPE Leibniz Rechenzentrum Germany	9,728	56.52	62.26	990
11	Thunderbird - PowerEdge 1850, 3.6 GHz, Infiniband, DELL NNSA/Sandia National Laboratories United States	9,024	53.00	64.97
12	Tera-10 - NovaScale 5160, Itanium2 1.6 GHz, Quadrics, EVIDEN Commissariat a l'Energie Atomique (CEA) France	9,968	52.84	63.80
13	Columbia - SGI Altix 1.5 GHz, Voltaire Infiniband, HPE NASA/Ames Research Center/NAS United States	10,160	51.87	60.96
14	TSUBAME Grid Cluster - Sun Fire x4600 Cluster, Opteron 2.4/2.6 GHz and ClearSpeed Accelerator, Infiniband, NEC/Sun CII, Institute of Science Tokyo Japan	11,088	48.88	78.80
15	Lonestar - PowerEdge 1955, 2.66 GHz, Infiniband, DELL Texas Advanced Computing Center/Univ. of Texas United States	5,848	46.73	62.22
16	Jaws - PowerEdge 1955, 3.0 GHz, Infiniband, DELL Maui High-Performance Computing Center (MHPCC) United States	5,200	42.39	62.40
17	Michael J. Muuss Cluster (MJM) - Evolocity II (LS Supersystem) Xeon 51xx 3.0 GHz IB, Linux Networx US Army Research Laboratory (ARL) United States	4,416	40.61	52.99
18	JUBL - eServer Blue Gene Solution, IBM Forschungszentrum Juelich (FZJ) Germany	16,384	37.33	45.88	179
19	Atlas - Appro Xtreme Server - Quad Opteron Dual Core 2.4GHz Infiniband, Cray/HPE Lawrence Livermore National Laboratory United States	9,216	36.58	44.24
20	Earth-Simulator, NEC Japan Agency for Marine-Earth Science and Technology Japan	5,120	35.86	40.96	3,200
21	Sapphire - Cray XT3, 2.6 GHz dual Core, Cray/HPE ERDC DSRC United States	8,192	35.20	42.60
22	CEA-CCRT-Platine - Novascale 3045, Itanium2 1.6 GHz, Infiniband, EVIDEN Commissariat a l'Energie Atomique (CEA) France	6,144	35.13	39.32
23	Queen Bee - PowerEdge 1950, 2.33 GHz, Infiniband, DELL Louisiana Optical Network Initiative United States	5,440	34.78	50.77
24	Cray XT3, 2.6 GHz dual Core, Cray/HPE AWE United Kingdom	7,812	32.50	40.62
25	Topsail - PowerEdge 1955, 2.33 GHz, Cisco/Topspin Infiniband, DELL University of North Carolina United States	4,160	28.77	38.82
26	Stella - eServer Blue Gene Solution, IBM ASTRON/University Groningen Netherlands	12,288	27.45	34.41	134
27	Altix 4700 1.6 GHz, HPE Air Force Research Laboratory United States	4,096	23.82	26.21
28	Altix 4700 1.6 GHz, HPE Air Force Research Laboratory United States	4,096	23.82	26.21
29	CITerra - PowerEdge 1950, 2.33 GHz, Myrinet, DELL Caltech United States	4,096	22.59	37.70
30	Big Red - BladeCenter JS21 Cluster, PPC 970, 2.5 GHz, Myrinet, IBM Indiana University United States	3,072	21.79	30.72
31	Blue Gene/P Solution, IBM IBM Rochester United States	8,192	20.86	27.85	63
32	eServer pSeries p5 575 1.9 GHz, IBM Naval Oceanographic Office - NAVO DSRC United States	3,072	20.07	23.35	501
33	eServer pSeries p5 575 1.9 GHz, IBM IBM Advanced Client Technology Center United States	3,072	20.07	23.35	501
34	Thunder - Intel Itanium2 Tiger4 1.4GHz - Quadrics, California Digital Corporation Lawrence Livermore National Laboratory United States	4,096	19.94	22.94
35	xSeries x3550 Cluster Xeon, 3 GHz, Infiniband, IBM National Center for High Performance Computing Taiwan	2,072	19.91	24.86	192
36	BladeCenter JS21 Cluster, PPC 970, 2.3 GHz, Myrinet, IBM University of Reading United Kingdom	3,040	19.04	27.97
37	Blue Protein - eServer Blue Gene Solution, IBM Computational Biology Research Center, AIST Japan	8,192	18.66	22.94	89
38	Frontier - eServer Blue Gene Solution, IBM EDF R&D France	8,192	18.66	22.94	89
39	eServer Blue Gene Solution, IBM Ecole Polytechnique Federale de Lausanne Switzerland	8,192	18.66	22.94	89
40	KEK/BG Sakura - eServer Blue Gene Solution, IBM High Energy Accelerator Research Organization /KEK Japan	8,192	18.66	22.94	89
41	KEK/BG MOMO - eServer Blue Gene Solution, IBM High Energy Accelerator Research Organization /KEK Japan	8,192	18.66	22.94	89
42	eServer Blue Gene Solution, IBM IBM Rochester, On Demand Deep Computing Center United States	8,192	18.66	22.94	89
43	BladeCenter HS21 Cluster, Xeon dual core, 2.33 GHz, GigEthernet, IBM Sinopec ShengLI Oilfield Branch Company, Geophysical Research Institute China	4,096	18.60	38.22	329
44	Darwin - PowerEdge 1950, 3.0 GHz, Infinipath, ClusterVision/Dell University of Cambridge United Kingdom	2,340	18.27	28.08
45	Calhoun - SGI Altix XE 1300 Cluster Solutions, 2.66GHZ, Infiniband, HPE University of Minnesota United States	2,048	17.31	21.79
46	BigBen - Cray XT3, 2.6 GHz dual Core, Cray/HPE Pittsburgh Supercomputing Center United States	4,136	17.00	21.51
47	T3 - PowerEdge 1955, 2.66 GHz, Infiniband, DELL NCSA United States	2,048	16.68	21.30
48	eServer pSeries p5 575 1.9 GHz, IBM ECMWF United Kingdom	2,480	16.20	18.85	404
49	eServer pSeries p5 575 1.9 GHz, IBM ECMWF United Kingdom	2,480	16.20	18.85	404
50	MACH5 - Apple XServe, 2.0 GHz, Myrinet, Self-made COLSA United States	3,072	16.18	24.58
51	SR11000-J2, Hitachi University of Tokyo Japan	128	15.81	18.84
52	HPC - Pentium4 Xeon, EM64T, Opteron, Opteron dual core, Cluster, Myrinet, Oracle University of Southern California United States	5,400	15.78	20.52
53	Cray X1E (4GB), Cray/HPE Korea Meteorological Administration South Korea	1,020	15.71	18.44
54	Bio-X2 - PowerEdge 1950, 2.33 GHz, Infiniband, DELL Stanford University/Biomedical Computational Facility United States	2,208	15.57	20.58
55	eServer pSeries p5 575 1.9 GHz, IBM NOAA R&D/ National Centers for Environmental Prediction United States	2,368	15.47	18.00	386
56	eServer pSeries p5 575 1.9 GHz, IBM NOAA R&D/ National Centers for Environmental Prediction United States	2,368	15.47	18.00	386
57	Humvee - Evolocity II (LS Supersystem), Linux Networx US Army Research Laboratory (ARL) United States	3,368	15.20	19.66
58	Cray X1E (2GB), Cray/HPE DOE/SC/Oak Ridge National Laboratory United States	1,014	14.96	18.33
59	Altix 4700 1.6 GHz, HPE Japan Marine Science and Technology Japan	2,560	14.59	16.38
60	Cray XT3, 2.6 GHz dual Core, Cray/HPE Swiss Scientific Computing Center (CSCS) Switzerland	3,328	14.22	17.31
61	BladeCenter JS20 Cluster, PPC 970, 2.2 GHz, Myrinet, IBM CeSViMa - BSC Spain	2,408	14.00	21.19
62	ASCI Q - AlphaServer SC45, 1.25 GHz, HPE Los Alamos National Laboratory United States	8,192	13.88	20.48
63	Intimidata - eServer Blue Gene Solution, IBM UCSD/San Diego Supercomputer Center United States	6,144	13.78	17.20	67
64	Cray XT4, 2.8 GHz, Cray/HPE Cray Inc. United States	2,832	13.06	15.86
65	eServer pSeries p5 575 1.5 GHz, IBM HPCx United Kingdom	2,560	12.94	15.36
66	BladeCenter HS21 Cluster, Xeon dual core 3.0 GHz, Infiniband, IBM University of Kentucky United States	1,360	12.83	16.32	129
67	BCX - eServer 326 Cluster, Opteron Dual Core 2.6 GHz, Infiniband, IBM CINECA Italy	5,120	12.61	26.62
68	eServer pSeries p5 575 1.9 GHz, IBM Naval Oceanographic Office - NAVO DSRC United States	1,920	12.54	14.59	313
69	Marylou4 - PowerEdge 1955, 2.66 GHz, GigEthernet, DELL Brigham Young University United States	2,520	12.51	26.81
70	BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet, IBM Geoscience (E) United States	5,000	12.31	22.00	307
71	System X - 1100 Dual 2.3 GHz Apple XServe/Mellanox Infiniband 4X/Cisco GigE, Self-made Virginia Tech United States	2,200	12.25	20.24
72	Cluster Platform 3000 BL460c, Xeon 51xx 3.0GHz, Infiniband, HPE IT Service Provider (B) United States	1,568	12.23	18.82
73	Altix 4700 1.6 GHz, HPE Technische Universitaet Dresden Germany	2,048	11.91	13.11
74	Cluster Platform 4000 DL145 Opteron Dual Core 2.6 GHz Infiniband, HPE Scientific Supercomputing Center Karlsruhe Germany	3,000	11.86	15.60
75	SGI Altix 3700 Bx2, 1.6 GHz, NUMALink, HPE Air Force Research Laboratory United States	2,048	11.81	13.11
76	SGI Altix 3700 Bx2, 1.6 GHz, NUMALink, HPE Japan Atomic Energy Research Institute Japan	2,048	11.81	13.11
77	Huygens - eServer pSeries 575, p5+ 1.9 GHz, Infiniband, IBM SARA (Stichting Academisch Rekencentrum) Netherlands	1,920	11.49	14.59	313
78	blueice - eServer pSeries p5 575 1.9 GHz, IBM National Center for Atmospheric Research (NCAR) United States	1,696	11.08	12.89	276
79	Deimos - Opteron dual core 2.6 GHz, Infiniband, Linux Networx Technische Universitaet Dresden Germany	2,576	10.88	13.39
80	Cluster Platform 3000 BL460c, Xeon 51xx 3.0GHz, Infiniband, HPE Semiconductor Company (O) United Kingdom	1,392	10.86	16.70
81	Endeavor - Intel Cluster, Xeon 3.0 GHz dual core, Infiniband, Intel Intel United States	1,140	10.77	13.68
82	John Von Neumann - LNX Cluster, Xeon 3.6 GHz, Myrinet, Linux Networx US Army Research Laboratory (ARL) United States	2,048	10.65	14.75
83	HP DL140, Xeon 53xx 2.33GHz, GigEthernet, HPE Energy Company (G) Malaysia	2,048	10.51	19.11
84	HP DL140, Xeon 53xx 2.33GHz, GigEthernet, HPE Energy Company (G) Malaysia	2,048	10.51	19.11
85	Cluster Platform 3000 BL460c, Xeon 51xx 3.0GHz, GigEthernet, HPE Logistic Services (D) Germany	1,336	10.42	16.03
86	PACS-CS - PACS-CS, low voltage Xeon 2.8 GHz, 3D Hyper-Crossbar, Hitachi/Fujitsu Center for Computational Sciences, University of Tsukuba Japan	2,560	10.35	14.34	545
87	eServer pSeries 655 (1.7 GHz Power4+), IBM China Meteorological Administration China	3,200	10.31	21.76
88	eServer pSeries 655 (1.7 GHz Power4+), IBM Naval Oceanographic Office - NAVO DSRC United States	2,944	10.31	20.02
89	Razor - PowerEdge 1950, 3 GHz, Voltaire Infiniband, DELL NNSA/Sandia National Laboratories United States	1,120	10.31	13.44
90	Tungsten - PowerEdge 1750, P4 Xeon 3.06 GHz, Myrinet, DELL NCSA United States	2,500	9.82	15.30
91	Albert - Dalco Cluster, Intel Xeon 3.0 Ghz, Quadrics, DALCO AG Switzerland BMW Sauber F1 Switzerland	1,024	9.60	12.29
92	eServer Blue Gene Solution, IBM Harvard University United States	4,096	9.43	11.47	44
93	KEK/BG UME - eServer Blue Gene Solution, IBM High Energy Accelerator Research Organization /KEK Japan	4,096	9.43	11.47	44
94	eServer Blue Gene Solution, IBM IBM - Almaden Research Center United States	4,096	9.43	11.47	44
95	eServer Blue Gene Solution, IBM IBM Research Switzerland	4,096	9.43	11.47	44
96	eServer Blue Gene Solution, IBM/ LLNL IBM Thomas J. Watson Research Center United States	4,096	9.43	11.47	44
97	Ocracoke - eServer Blue Gene Solution, IBM Renaissance Computing Institute (RENCI) United States	4,096	9.43	11.47	44
98	eServer Blue Gene Solution, IBM Science and Technology Facilities Council - Daresbury Laboratory United Kingdom	4,096	9.43	11.47	44
99	Blue Fern - eServer Blue Gene Solution, IBM University of Canterbury New Zealand	4,096	9.43	11.47	44
100	xSeries x3550 Cluster Xeon, 3 GHz, GigEthernet, IBM Financial Institution United Kingdom	1,700	9.29	20.40	158