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TOP500 List - November 2005

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	BGW - eServer Blue Gene Solution, IBM IBM Thomas J. Watson Research Center United States	40,960	91.29	114.69	448
3	ASC Purple - eServer pSeries p5 575 1.9 GHz, IBM DOE/NNSA/LLNL United States	10,240	63.39	77.82	1,671
4	Columbia - SGI Altix 1.5 GHz, Voltaire Infiniband, HPE NASA/Ames Research Center/NAS United States	10,160	51.87	60.96
5	Thunderbird - PowerEdge 1850, 3.6 GHz, Infiniband, DELL EMC Sandia National Laboratories United States	8,000	38.27	57.60
6	Red Storm Cray XT3, 2.0 GHz, Cray/HPE Sandia National Laboratories United States	10,880	36.19	43.52
7	Earth-Simulator, NEC Japan Agency for Marine-Earth Science and Technology Japan	5,120	35.86	40.96	3,200
8	MareNostrum - JS20 Cluster, PPC 970, 2.2 GHz, Myrinet, IBM Barcelona Supercomputing Center Spain	4,800	27.91	42.14
9	Stella - eServer Blue Gene Solution, IBM ASTRON/University Groningen Netherlands	12,288	27.45	34.41	134
10	Jaguar - Cray XT3, 2.4 GHz, Cray/HPE DOE/SC/Oak Ridge National Laboratory United States	5,200	20.53	24.96
11	Thunder - Intel Itanium2 Tiger4 1.4GHz - Quadrics, California Digital Corporation Lawrence Livermore National Laboratory United States	4,096	19.94	22.94
12	Blue Protein - eServer Blue Gene Solution, IBM Computational Biology Research Center, AIST Japan	8,192	18.20	22.94	89
13	eServer Blue Gene Solution, IBM Ecole Polytechnique Federale de Lausanne Switzerland	8,192	18.20	22.94	89
14	Sapphire - Cray XT3, 2.6 GHz, Cray/HPE ERDC DSRC United States	4,096	16.98	21.30
15	MACH5 - Apple XServe, 2.0 GHz, Myrinet, Self-made COLSA United States	3,072	16.18	24.58
16	Cray X1E (4GB), Cray/HPE Korea Meteorological Administration South Korea	1,020	15.71	18.44
17	Cray X1E (2GB), Cray/HPE DOE/SC/Oak Ridge National Laboratory United States	1,014	14.96	18.33
18	ASCI Q - AlphaServer SC45, 1.25 GHz, HPE Los Alamos National Laboratory United States	8,192	13.88	20.48
19	eServer pSeries p5 575 1.9 GHz, IBM Lawrence Livermore National Laboratory United States	2,048	13.09	15.56	334
20	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
21	SGI Altix 3700 Bx2, 1.6 GHz, NUMALink, HPE Air Force Research Laboratory United States	2,048	11.81	13.11
22	SGI Altix 3700 Bx2, 1.6 GHz, NUMALink, HPE Japan Atomic Energy Research Institute Japan	2,048	11.81	13.11
23	BlueGene/L DD1 Prototype (0.5GHz PowerPC 440 w/Custom), IBM/ LLNL IBM Rochester United States	8,192	11.68	16.38
24	HPC - Pentium4 Xeon, EM64T, Opteron, Opteron dual core, Cluster, Myrinet, IBM, Sun, Myricom University of Southern California United States	2,904	10.75	17.28
25	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
26	eServer pSeries 655 (1.7 GHz Power4+), IBM China Meteorological Administration China	3,200	10.31	21.76
27	eServer pSeries 655 (1.7 GHz Power4+), IBM Naval Oceanographic Office - NAVO DSRC United States	2,944	10.31	20.02
28	Tungsten - PowerEdge 1750, P4 Xeon 3.06 GHz, Myrinet, DELL EMC NCSA United States	2,500	9.82	15.30
29	eServer Blue Gene Solution, IBM IBM - Almaden Research Center United States	4,096	9.36	11.47	44
30	eServer Blue Gene Solution, IBM IBM - Deep Computing Capacity on Demand Center United States	4,096	9.36	11.47	44
31	eServer Blue Gene Solution, IBM IBM Research Switzerland	4,096	9.36	11.47	44
32	eServer Blue Gene Solution, IBM/ LLNL IBM Thomas J. Watson Research Center United States	4,096	9.36	11.47	44
33	eServer pSeries 690 (1.9 GHz Power4+), IBM ECMWF United Kingdom	2,176	9.24	16.54
34	eServer pSeries 690 (1.9 GHz Power4+), IBM ECMWF United Kingdom	2,176	9.24	16.54
35	DataStar - eServer pSeries 655/690 (1.5/1.7 GHz Power4+), IBM UCSD/San Diego Supercomputer Center United States	2,464	9.12	15.63
36	SGI Altix 3700 Bx2, 1.6 GHz, NUMALink, HPE National Computational Infrastructure (NCI Australia) Australia	1,536	8.97	9.83
37	SX8/576M72, NEC HWW/Universitaet Stuttgart Germany	576	8.92	9.22
38	RIKEN Super Combined Cluster, Fujitsu Institute of Physical and Chemical Research (RIKEN) Japan	2,048	8.73	12.53
39	Mpp2 - Cluster Platform 6000 rx2600 Itanium2 1.5 GHz, Quadrics, HPE DOE/SC/Pacific Northwest National Laboratory United States	1,936	8.63	11.62
40	CITerra - PowerEdge 1850, 3.2 GHz, Myrinet, DELL EMC Caltech United States	2,048	8.41	13.11
41	Dawning 4000A, Opteron 2.2 GHz, Myrinet, Dawning Shanghai Supercomputer Center China	2,560	8.06	11.26
42	Lightning - Opteron 2 GHz, Myrinet, Linux Networx Los Alamos National Laboratory United States	2,816	8.05	11.26
43	BigBen - Cray XT3, 2.4 GHz, Cray/HPE Pittsburgh Supercomputing Center United States	2,060	7.94	9.89
44	MCR Linux Cluster Xeon 2.4 GHz - Quadrics, Linux Networx/Quadrics Lawrence Livermore National Laboratory United States	2,304	7.63	11.06
45	eServer pSeries p5 575 1.5 GHz, IBM HPCx United Kingdom	1,536	7.39	9.22
46	ASCI White, SP Power3 375 MHz, IBM Lawrence Livermore National Laboratory United States	8,192	7.30	12.29
47	Seaborg - SP Power3 375 MHz 16 way, IBM DOE/SC/LBNL/NERSC United States	6,656	7.30	9.98
48	TeraGrid, Itanium2 1.3/1.5 GHZ, Myrinet, IBM NCSA United States	1,776	7.21	10.26
49	eServer Opteron 2.2 GHz. Myrinet, IBM US Army Research Laboratory (ARL) United States	2,320	7.18	10.21
50	Mp - PowerEdge SC1425 3.6 GHz- Infiniband, DELL EMC University of Sherbrooke Canada	1,152	6.89	8.29
51	PRIMEPOWER HPC2500 (2.08 GHz), Fujitsu Nagoya University Japan	1,664	6.86	13.84
52	xSeries Cluster Xeon 2.4 GHz - Quadrics, IBM/Quadrics Lawrence Livermore National Laboratory United States	1,920	6.59	9.22
53	Bassi - eServer pSeries p5 575 1.9 GHz, IBM DOE/SC/LBNL/NERSC United States	976	6.42	7.42	159
54	Explore - SGI Altix 3700 Bx2, 1.5 GHz, NUMAlink, Infiniband, HPE NASA/Goddard Space Flight Center United States	1,152	6.31	6.91
55	Lilac - xSeries x335 Cluster, Xeon 3.06 GHz, Quadrics, IBM Lawrence Livermore National Laboratory United States	1,540	6.23	9.43
56	eServer pSeries 690 (1.7 GHz Power4+), IBM HPCx United Kingdom	1,600	6.19	10.88
57	AIST Super Cluster P-32 - AIST Super Cluster P-32, Opteron 2.0 GHz, Myrinet, IBM Grid Technology Research Center, AIST Japan	2,200	6.16	8.80
58	Tungsten 2 - PowerEdge 1850, 3.6 GHz, Infiniband, DELL EMC NCSA United States	1,024	6.12	7.37
59	SGI Altix 3700 Bx2, 1.6 GHz, NUMALink, HPE NCSA United States	1,024	6.03	6.55
60	Cluster Platform 4000 DL145 Opteron 2.6 GHz Infiniband, HPE Air Force Research Laboratory United States	2,048	5.90	10.65
61	Tera10 beta system - NovaScale 5160, Itanium2 1.6 GHz, Quadrics, EVIDEN Commissariat a l'Energie Atomique (CEA) France	1,008	5.83	6.45
62	eServer pSeries p5 575 1.9 GHz, IBM Lawrence Livermore National Laboratory United States	864	5.74	6.57	141
63	eServer BladeCenter JS20 (PowerPC970 2.2 GHz), Myrinet, IBM Seoul National University South Korea	968	5.62	8.52
64	JUMP - eServer pSeries 690 (1.7 GHz Power4+), IBM Forschungszentrum Juelich (FZJ) Germany	1,312	5.57	8.92
65	Marylou4 - PowerEdge 1855, 3.6 GHz, GigEthernet, DELL EMC Brigham Young University United States	1,260	5.44	9.07
66	Topdawg - PowerEdge 1850, 3.2 GHz, Infiniband, DELL EMC University of Oklahoma United States	1,024	5.44	6.55
67	PRIMEPOWER HPC2500 (1.3 GHz), Fujitsu National Aerospace Laboratory of Japan Japan	2,304	5.41	11.98
68	MVS-15000BM, eServer BladeCenter JS20 (PowerPC970 2.2 GHz), Myrinet, IBM Joint Supercomputer Center Russia	924	5.36	8.13
69	Lenngren - PowerEdge 1850, 3.4 GHz, Infiniband, DELL EMC KTH - Royal Institute of Technology Sweden	886	5.00	6.03
70	Cray XT3, 2.6 GHz, Cray/HPE Swiss Scientific Computing Center (CSCS) Switzerland	1,100	4.78	5.72
71	eServer pSeries p5 575 1.9 GHz, IBM Adam Opel AG Germany	720	4.78	5.47	117
72	eServer Blue Gene Solution, IBM Boston University United States	2,048	4.71	5.73	22
73	eServer Blue Gene Solution, IBM DOE/SC/Argonne National Laboratory United States	2,048	4.71	5.73	22
74	eServer Blue Gene Solution, IBM Forschungszentrum Juelich (FZJ) Germany	2,048	4.71	5.73	22
75	eServer Blue Gene Solution, IBM MIT United States	2,048	4.71	5.73	22
76	eServer Blue Gene Solution, IBM NIWS Co, Ltd Japan	2,048	4.71	5.73	22
77	eServer Blue Gene Solution, IBM National Center for Atmospheric Research (NCAR) United States	2,048	4.71	5.73	22
78	Orangena - eServer Blue Gene Solution, IBM Princeton University United States	2,048	4.71	5.73	22
79	Intimidata - eServer Blue Gene Solution, IBM UCSD/San Diego Supercomputer Center United States	2,048	4.71	5.73	22
80	eServer Blue Gene Solution, IBM University of Edinburgh United Kingdom	2,048	4.71	5.73	22
81	Cluster Platform 3000 DL360G4 Xeon 3.4 GHz, Myrinet, HPE Government Classified United States	1,000	4.62	6.80
82	Cluster Platform 3000 DL360G4 Xeon 3.4 GHz, Myrinet, HPE Government Classified United States	1,000	4.62	6.80
83	eServer pSeries p5 575 1.9 GHz, IBM Max-Planck-Gesellschaft MPI/IPP Germany	688	4.56	5.23	112
84	Turing - XServe G5 2GHz, Myrinet, Self-made University of Illinois United States	1,024	4.56	8.19
85	PRIMEPOWER HPC2500 (1.56 GHz), Fujitsu Kyoto University Japan	1,472	4.55	9.19
86	AlphaServer SC45, 1 GHz, HPE Pittsburgh Supercomputing Center United States	3,016	4.46	6.03
87	eServer pSeries 655 (1.7 GHz Power4+), IBM NOAA R&D/ National Centers for Environmental Prediction United States	1,152	4.38	7.83
88	eServer pSeries 655 (1.7 GHz Power4+), IBM NOAA R&D/ National Centers for Environmental Prediction United States	1,152	4.38	7.83
89	Slide Rule - PowerEdge 1850/1855 3.2 GHz GigEthernet, DELL EMC UT SimCenter at Chattanooga United States	1,010	4.33	6.46
90	Houat - eServer pSeries p5 575 1.5 GHz, Myrinet, IBM Total SA France	1,024	4.31	6.14
91	Cosmos - PowerEdge 1750, P4 Xeon 3.2 GHz, Myrinet, DELL EMC Caltech/JPL United States	1,024	4.30	6.55
92	DeepComp 6800, Itanium2 1.3 GHz, QsNet, Lenovo Computer Network Information Center, Chinese Academy of Science China	1,024	4.19	5.32
93	pSeries 690 Turbo 1.3 GHz, IBM National Center for Atmospheric Research (NCAR) United States	1,600	4.18	8.32
94	lonestar - PowerEdge 1750, Pentium4 Xeon 3.2/3.06 GHz, Myrinet, Dell-Cray Texas Advanced Computing Center/Univ. of Texas United States	1,024	4.15	6.34
95	The Hive - Cluster Platform 3000 DL360G3 Xeon 3.06 GHz, Verari BladeRack 3.4 GHz, GigEthernet, HPE Walt Disney Feature Animation United States	1,110	4.13	6.94
96	Atipa Cluster, Opteron, Myrinet, Atipa Technology DOE/Bettis Atomic Power Laboratory United States	1,090	4.04	5.23
97	Atipa Cluster, Opteron, Myrinet, Atipa Technology DOE/Knolls Atomic Power Laboratory United States	1,090	4.04	5.23
98	eServer pSeries p5 575 1.9 GHz, IBM National Center for Atmospheric Research (NCAR) United States	608	4.03	4.62	99
99	AlphaServer SC45, 1 GHz, HPE Commissariat a l'Energie Atomique (CEA) France	2,560	3.98	5.12
100	Cluster Platform 4000 DL145 Opteron 2.6 GHz Infiniband, HPE Hewlett-Packard United States	1,024	3.95	5.32