June 2011

Rank	Machine	Vendor	Type	Installation Site	Number of nodes	Number of cores	Scale	GTEPS
1	Intrepid	IBM	BlueGene/P	ANL	32768	131072	38	18.4684
2	Jugene	IBM	BlueGene/P	Forschungszentrum Jülich	32768	131072	38	18.361
3	Lomonosov	MPP		Moscow State University	4096	8192	37	43.3792
4	Hopper	Cray	XE6	LBL	1800	43200	37	25.0182
5	Franklin	Cray	XT4	LBL	4000	16000	36	19.8642
6	Lonestar	Dell	PowerEdgeM610	TACC	512	6144	34	8.05306
7	Kraken	Appro		LLNL	1	32	34	0.0536871
8	RedSky	Sun		SNL	512	4096	33	9.44893
9	Endeavor	Westmere	X5670	Intel		3072	33	6.76457
10		SGI	AltixUV1000	SGI			32	10.0932
11		IBM	BlueGene/P	Moscow State University	2048	8192	32	6.87195
12	Blacklight	SGI	AltixUV1000	PSC			32	4.40234
13		SGI	AltixICE8400EX	SGI	256	1024	31	14.066
14	NNSA/SC BlueGene/Q Prototype II	IBM	BlueGene/Q(Prototype)	IBM Research, T.J. Watson	512		31	11.2743
15	DAS-4/VU	SuperMicro		VU University	128		31	4.61709
16	Matterhorn	Cray	XMT2	CSCS	64		31	0.858993
17	Kraken	Appro		LLNL	1	32	31	0.0966368
18	SuperDrago n-1	Sugon		Institute of Computing Technology, Beijing, China	32	384	30	1.39586
19	Jaguar	Cray	XT5-HE	ORNL	18688	224256	30	0.966368
20	Knot	HP	MPIcluster	UCSB		64	30	0.171799
21	cougarxmt	Cray	XMT	PNL	128		29	1.18112
22	graphstorm	Cray	XMT	SNL	128		29	1.07374
23	Matterhorn	Cray	XMT2	CSCS	64		29	0.858993
24	Erdos	Cray	XMT	ORNL	64		29	0.697932
25	Gordon	Appro		SDSC			29	0.0214748
26	Vortex	Convey	XC-1ex	Convey Computer Corporation	1	4	27	0.762357
27		Westmere	E7-48702.4GHz	Intel Research	1	40	27	0.697932
28	Minerva	IBM	iDataPlex	University of Warwick	258	3096	26	0.837519
29	Neumann	HPC	Systems	UCSB		32	26	0.0322123