Tokyo, November 2, 2011 — RIKEN and Fujitsu today announced that the "K computer(1)," which is a supercomputer currently under their joint development, has achieved a LINPACK(2) benchmark performance of 10.51 petaflops (10.51 quadrillion floating point operations per second). The supercomputer system used for these tests is in its final configuration of 864 racks, comprising a total of 88,128 interconnected CPUs. With an execution efficiency of 93.2%, this system further exceeds its first place winning performance on the 37th TOP500 list(3) international ranking of supercomputers published in June 2011, where it scored 93.0%. Although development is still underway to adjust...