From the press release:
“RIKEN and Fujitsu have taken first place on the 37th TOP500 list announced today at the 26th International Supercomputing Conference (ISC’11) held in Hamburg, Germany. This ranking is based on a performance measurement of the “K computer(1),” currently under their joint development.
The TOP500-ranked K computer system, currently in the configuration stage, has 672 computer racks equipped with a current total of 68,544 CPUs. This half-build system achieved the world’s best LINPACK(2) benchmark performance of 8.162 petaflops (quadrillion floating-point operations per second), to place it at the head of the TOP500 list. In addition, the system has recorded high standards with a computing efficiency ratio of 93.0%. This is the first time since June 2004 that the Japanese supercomputer “Earth Simulator” has been ranked first on the TOP500 list.”
