Editing Earth Simulator (section)

== Earth Simulator (second generation) ==
{{Infobox custom computer
| Name            = Earth Simulator 2
| Image           = Earth simulator ES2.jpg
| Image_Size      = 
| Alt             = 
| Caption         = Earth Simulator (second generation)
| Dates           = 2009–2015
| Sponsors        = 
| Operators       = 
| Location        = 
| Architecture    = 160 nodes of NEC SX-9E vector computers
| Power           = 
| OS              = [[SUPER-UX]]
| Space           = 
| Memory          = 
| Storage         = 
| Speed           = 131 TFLOPS (peak)
| Cost            = 
| ChartName       = [[TOP500]]
| ChartPosition   = 22
| ChartDate       = June 2009
| Purpose         = 
| Legacy          = 
| Emulators       = 
| Website         = 
| Sources         = 
}}

ES was replaced by the Earth Simulator 2 (ES2) in March 2009.<ref>{{cite web | url = http://insidehpc.com/2009/03/01/japans-earth-simulator-2-open-for-business/ | date = 1 March 2009 | title = Japan's Earth Simulator 2 open for business}}</ref> ES2 is an NEC [[NEC SX-9|SX-9/E]] system, and has a quarter as many nodes each of 12.8 times the performance (3.2× clock speed, four times the processing resource per node), for a peak performance of 131 TFLOPS.  With a delivered LINPACK performance of 122.4 TFLOPS,<ref>{{cite web | url = http://insidehpc.com/2009/06/05/earth-simulator-update-breaks-efficiency-record/ | date = 5 June 2009 | title = Earth Simulator update breaks efficiency record}}</ref> ES2 was the most efficient supercomputer in the world at that point. In November 2010, NEC announced that ES2 topped the Global FFT, one of the measures of the [[HPC Challenge Benchmark|HPC Challenge Awards]], with the performance number of 11.876 TFLOPS.<ref>{{cite web | url = http://www.nec.co.jp/press/en/1011/1702.html | date = 17 November 2010 | title = "Earth Simulator" Wins First Place in the HPC Challenge Awards}}</ref>

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