1IBM, Cray Dominate List of Top 10 Fastest Supercomputers
by Jeffrey Burt
2Still the Reigning King
China’s Tianhe-2 system has been at the top of the list since it first became No. 1 in June 2013. The system, powered by Intel Xeon chips and Xeon Phi coprocessors, has a max performance of 33.86 petaflops and a peak of just under 55 petaflops. It’s about twice as fast as the No. 2 system.
3Titan at No. 2, but on the Clock
The Titan system running at the Oak Ridge National Lab—a Cray XK7 system powered by Advanced Micro Devices Opteron chips and Nvidia Tesla K20x GPU accelerators—is due to be replaced in 2017 by Summit, which will offer a peak performance of more than 100 petaflops.
4Sequoia Also a Short-Timer
The IBM BlueGene/Q supercomputer at the Lawrence Livermore Lab also will be replaced in 2017. Sierra, Sequoia’s replacement, also will have a peak performance of more than 100 petaflops.
5Japan’s K Computer Remains at No. 4
The supercomputer runs on Fujitsu’s SPARC64 VIIIfx processors and is installed at the Riken Advanced Institute of Computational Science in Japan. The number of Japanese supercomputers on the Top500 list increased from 30 to 32 since June.
6Mira Is Another IBM System
The BlueGene/Q system is housed at the Argonne National Lab. IBM has 153 systems on the Top500 list, including four of the top 10. Only Hewlett-Packard, with 179 supercomputers, has more on the list.
7Piz Daint Spends a Year in the Top 10
The Cray system, leveraging Xeon chips and Nvidia GPU accelerators and installed at the Swiss National Supercomputing Centre, made it on the list for the first time in November 2013.
8Stampede Leverages Intel Xeon Phi Coprocessors
Stampede, which is at the Texas Advanced Computing Center, is based on Dell PowerEdge servers running on Xeon chips and Xeon Phi coprocessors. Twenty-five systems on the list use Xeon Phis to accelerate application performance. Fifty systems use GPU accelerators from Nvidia; another three use GPUs from AMD.
9JuQueen Is Europe’s Second-Fastest System
The IBM BlueGene/Q system is housed at the Julich Supercomputing Centre in Germany. The number of European systems on the Top500 list grew from 116 in June to 130 in November.
10Vulcan Has Many Jobs
The IBM BlueGene/Q system, also at the Lawrence Livermore National Lab, is used for a variety of efforts, from improving U.S. economic competitiveness to running academic workloads.
11Cray’s CS Storm and Its Unknown User
The supercomputer, powered by Xeon E5-2660 v2 chips and Nvidia K40 GPUs, is run by an unnamed U.S. government agency.
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