K computer
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The K computer – named for the Japanese word/numeral "kei", meaning 10 quadrillion – was a supercomputer manufactured by Fujitsu, installed at the Riken Advanced Institute for Computational Science campus in Kobe, Hyōgo Prefecture, Japan. Wikipedia
Architecture: 88,128 SPARC64 VIIIfx processors, Tofu interconnect
Location: Riken Advanced Institute for Computational Science
Operating system: Linux
Power: 12.6 MW
Ranking: TOP500: 18th, as of November 2018
Speed: 10.51 petaflops (Rmax)