HPCwire

This year's Green500 list announced at this week's SC13 Conference in Denver includes a prevalence of heterogeneous supercomputing systems in the top 10 spots, representing a continuation of last year's trend. The list is topped by the Tokyo Institute of Technology's TSUBAME-KFC, with an efficiency of 4.5 gigaflops/watt. All of TSUBAME-KFC's computational nodes are composed of two Intel Ivy Bridge processors and four NVIDIA Kepler graphical processing units (GPUs). The integration of Intel central processing units (CPUs) with NVIDIA GPUs is a model followed by all the systems in the top 10. Among the milestones for this year's Green500 is the first time a supercomputer has exceeded the 4 gigaflops/watt limit, the first time all top 10 systems are heterogeneous, and the first time the average of the measured power consumed by the systems on the Green500 declined with respect to the previous list. To read further, please visit http://www.hpcwire.com/off-the-wire/two-brains-better-one-heterogeneous-systems-dominate-green500/