Gyoukou ( Japanese : 暁光 , Hepburn : gyōkō , dawn light) is a supercomputer developed by ExaScaler [ ja ] and PEZY Computing , based around ExaScaler's ZettaScaler immersion cooling system.
5-649: It was deployed at the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) Yokohama Institute for Earth Sciences, the same floor where the Earth Simulator is located. Amid the scandal regarding the development grant, it was removed from JAMSTEC in April 2018. Gyoukou is based on ExaScaler's ZettaScaler-2.x technology which features liquid immersion cooling system using Fluorinert . Each immersion tank can contain 16 Bricks . A Brick consists of
10-501: A backplane board, 32 PEZY-SC2 modules, 4 Intel Xeon D host processors, and 4 InfiniBand EDR cards. Modules inside a Brick are connected by hierarchical PCI Express fabric switches, and the Bricks are interconnected by InfiniBand. Each PEZY-SC2 module contains 2048 processing elements (1 GHz design), six MIPS64 control processors, and 4 DDR4 DIMMs (64GB per module as of November 2017). With partial configuration, Gyoukou
15-558: Is a Japanese national research institute for marine-earth science and technology. It was founded as Japan Marine Science and Technology Center (海洋科学技術センター) in October 1971, and became an Independent Administrative Institution administered by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) in April 2004. JAMSTEC owned or currently owns the following vessels and vehicles for marine research: JAMSTEC
20-567: The November 2017 Green500 energy efficiency ranking. at the time benchmarked as 19,860,000 "cores" (after an upgrade). Japan Agency for Marine-Earth Science and Technology The Japan Agency for Marine-Earth Science and Technology ( 国立研究開発法人海洋研究開発機構 , Kokuritsu-Kenkyū-Kaihatsu-Hōjin Kaiyō Kenkyū Kaihatsu Kikō , literally "National Research and Development Agency on Marine Research and Development) , or JAMSTEC (海洋機構),
25-486: Was ranked 69th at 1,677.1 teraflops on the June 2017 TOP500 ranking. After upgrade to full scale (equivalent of 19.5 immersion tanks) using newer ZettaScaler-2.2 system, it ranked 4th at 19,135.8 teraflops on the November 2017 TOP500 ranking. At the time of benchmarking, 1984 out of 2048 cores of each PEZY-SC2 were used at 700 MHz clock. Gyoukou has high energy efficiency, and it ranked 5th at 14.173 gigaflops/watt on
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