The 40th edition of the twice-yearly TOP500 list of the world’s top supercomputers was recently released this month.
Oak Ridge National Laboratory's Titan is a Cray XK7 system
The world’s fastest supercomputer is
Titan, a Cray XK7 system installed at Oak Ridge, achieved 17.59 Petaflop/s (quadrillions of calculations per second) on the Linpack benchmark. Titan has 560,640 processors, including 261,632 NVIDIA K20x accelerator cores.
The Sequoia supercomputer built by IBM
Titan knocked Lawrence Livermore National Laboratory’s Sequoia out of No. 1 and into second place. Sequoia, an IBM BlueGene/Q system, was No. 1 in June 2012 with an impressive 16.32 Petaflop/s on the Linpack benchmark. With 1,572,864 cores, Sequoia is the first system with one million or more cores.
Fujitsu’s K computer
Rounding out the top five systems are Fujitsu’s K computer installed at the RIKEN Advanced Institute for Computational Science (AICS) in Kobe, Japan (No. 3); a BlueGene/Q system named Mira at Argonne National Laboratory (No. 4);
Mira, the 10-petaflop IBM Blue Gene/Q
and a BlueGene/Q system named JUQUEEN at the Forschungszentrum Juelich in Germany (No. 5), which was upgraded and is now the most powerful system in Europe.
JUQUEEN at the Forschungszentrum Juelich in Germany
The other new system in the Top 10 is Stampede, a Dell PowerEdge C8220 system installed at the Texas Advanced Computing Center at the University of Texas in Austin. It uses the brand new Intel Xeon Phi processors (previously known as MIC) to achieve its 2.6 Petaflop/s.
In all there are 23 systems with Petaflop/s performance on the latest list, just four-and-a-half years after the debut of Roadrunner, the world’s first Petaflop/s supercomputer. In spite of delivering petascale performance on applications, the Cray Blue Waters system at NCSA at the University of Illinois, Urbana-Champaign, chose not to submit a Linpack benchmark performance figure.
via
Top500
