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Kraken was a Cray XT5 supercomputer that entered into full production mode on February 2, 2009. Kraken was operated by the University of Tennessee and was the most powerful computer in the world managed by academia at the time. It was housed in the Oak Ridge Leadership Computing facility at Oak Ridge National Laboratory. Kraken was decommissioned on April 30, 2014. ==History== Kraken's history began in 1991 with the establishment of the Joint Institute for Computational Sciences (JICS), a joint venture between the University of Tennessee and Oak Ridge National Laboratory. The JICS facility, the UT campus building in which JICS is housed, is one of the only state-owned buildings ever built on the campus of a national laboratory. The main goals of JICS are to create new ways to simulate and model data using supercomputers and to train future engineers and scientists on the use of these techniques.〔"Joint Institute for Computational Sciences". 20 Dec 2010. The University of Tennessee. Retrieved 22 May 2011.〕 The next major event in the establishment of Kraken occurred in the Spring of 2008 when the National Science Foundation awarded the University of Tennessee a $65 million grant to build and operate a supercomputer in order to aid public research in academia; the grant provided $30 million for the hardware and $35 million for the operation of the system. The supercomputer was housed at Oak Ridge Leadership Computing Facility and managed by the University of Tennessee's National Institute for Computational Sciences (NICS).〔"UT Wins $65M National Science Foundation Supercomputing Grant for Next-Generation Computing System". 3 April 2008. The University of Tennessee. Retrieved 22 May 2011.〕 Kraken entered full production on February 2, 2009 with a speed of 607 TeraFLOPs, or 607 trillion calculations per second.〔"UT Supercomputer Kraken Officially Up and Running". 2 March 2009. The University of Tennessee. Retrieved 22 May 2011.〕 In late 2009 Kraken became only the fourth supercomputer ever to perform at a petaFLOP, 1,000 trillion calculations per second, and attained its highest position on the list of the world’s most powerful supercomputers at 3rd place. Kraken was also the most powerful supercomputer operated by a public university.〔"Tennessee's Kraken Named World's Third Fastest Computer, ORNL's Jaguar Is No. 1". 17 Nov 2009. Science Daily. Retrieved 22 May 2011.〕 In late 2010 Kraken had fallen to the 8th place on the list of most powerful supercomputers but was still the most powerful supercomputer operated by academia. Kraken was taken offline and retired on April 30, 2014. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Kraken (supercomputer)」の詳細全文を読む スポンサード リンク
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