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RIKEN and Fujitsu have 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 the system software, the K computer achieved the goal of a LINPACK score of 10 petaflops, a performance target set as a national core technology as part of Japan's 3rd Science and Technology Basic Plan.
RIKEN and Fujitsu have been working together to develop the K computer, with the aim of beginning shared use by November 2012, as a part of the High-Performance Computing Infrastructure (HPCI) initiative led by Japan's Ministry of Education, Culture, Sports, Science and Technology (MEXT). The K computer brings together leading-edge technologies, including ultrafast and energy-efficient CPUs and a network capable of an immense amount of interconnectivity, to create a high-performance, highly-reliable supercomputer.
In August 2011, the last of 864 racks was delivered and installed, bringing the system to its final configuration. For the purpose of conducting point basic operating tests and design-performance checks, the system was tested on October 7 -8, using the LINPACK benchmarking program and measured processing speeds of 10.51 petaflops and 93.2% operating efficiency. These results have been submitted to the 38th TOP500 list, which will be presented at the International Conference for High Performance Computing, Networking, Storage and Analysis (SC11), being held in Seattle from November 12 to 18, 2011.
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