The U.S. Department of Energy today unveiled plans to build two GPU-accelerated supercomputers — expected to deliver at least three-times greater performance than today’s most powerful system — which will move the world closer to the long-held goal of exascale computing. The supercomputers, to be installed in 2017, will be based on next-generation IBM POWER servers with NVIDIA Tesla GPU accelerators and NVIDIA NVLink high-speed GPU interconnect technology. The “Summit” system at Oak Ridge National Laboratory will be capable of delivering 150 to 300 peak petaflops, and be used for open science. Delivering performance well in excess of 100 peak petaflops, the “Sierra” system will be a key element of Lawrence Livermore National Laboratory’s national nuclear security mission. They will be considerably faster than the U.S.’s current speed champ, Oak Ridge’s “Titan,” which delivers 27 peak petaflops, as well as the world’s fastest, Tianhe-2 at China’s National Super Computer Center, in Guangzhou, which delivers 55 peak petaflops. To read further, please visit http://www.hpcwire.com/off-the-wire/doe-build-two-supercomputers-national-labs/.