In this video from the Nvidia booth at SC13, Satoshi Matsuoka from the Tokyo Institute of Technology presents: Being Very Green with Tsubame 2.5 Towards 3.0 and Beyond to Exascale.
TSUBAME 2.5 succeeded TSUBAME 2.0 by upgrading all 4224 Tesla M2050 GPUs to Kepler K20x GPUs, achieving 5.76 / 17.1 Petaflops peak in double / single point precision respectively, latter the fastest in Japan. By overcoming several technical challenges, TSUBAME 2.5 exhibits x2-3 speedup and multi- petaflops performance for many applications, leading to TSUBAME 3.0 in 2015-16.
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