The IBM Roadrunner supercomputer narrowly edged out Cray's Jaguar high-performance computer to hold onto the top spot on the Top 500 Supercomputer list. The Cray Jaguar supercomputer, which has recently been upgraded for the U.S. Department of Energy, is now the second system to break the petaflop barrier, according to the Top 500 list. While IBM and Cray dominated the top 10 spots on the list, Hewlett-Packard built more than 200 systems that are listed in the current Top 500.
Roadrunner supercomputer narrowly beat out a revamped Cray
XT Jaguar high-performance computer system to hold onto the No. 1 spot on the
latest version of the Top 500 Supercomputer list.
According to the Top 500 list, which was released Nov. 17, the IBM
Roadrunner system held onto the top spot with a performance
petaflops, or more than 1.1 quadrillion calculations per second. The IBM
Roadrunner system was installed at the U.S. Department of Energy's Los Alamos
National Laboratory in New Mexico.
It was the first supercomputer to break the petaflop mark.
Cray XT Jaguar supercomputer, which was recently upgraded for the DOE's Oak
Ridge National Laboratory in Tennessee
, placed second with a performance of
The Top 500 Supercomputer list is released
twice each year
and is compiled by researchers at the University
of Mannheim in Germany,
the National Energy
at the Lawrence-Berkeley National Laboratory and the University
of Tennessee. The group uses the Linpack
as the standard to measure the performance of each supercomputer.
The latest version of the Top 500 list was released just before the start of
the 2008 Supercomputing Conference in Austin, Texas.
Earlier this month, researchers
at the Oak Ridge laboratory issued a statement that reported that the Cray Jaguar
was faster than the IBM
Roadrunner supercomputer. However, the rankings of the Top 500 list are
determined by how each supercomputer performs in relation to the Linpack
IBM and Cray made history with breaking the petaflop mark this year
latest version of the list shows how powerful supercomputers are becoming in
just a short time. The entry-level performance mark for the Top 500 list increased
from 9 teraflops to 12.64 teraflops in just six months.
Although it missed out on the top spot, Cray managed to place four systems
within the Top 10 of the Top 500 list. IBM
had three systems listed within the Top 10, and Sun Microsystems, SGI
and Dawning each placed one supercomputer in the Top 10.
Intel processors are now the dominant chips used for the Top 500. All
together, Intel processors are used within 379 different supercomputers, while
Advanced Micro Devices' processors are used in 59 systems. The IBM
Power processor is used in 60 supercomputers.
While IBM and Cray dominate the list of
most powerful systems, Hewlett-Packard builds more systems in the Top 500 list
than any other HPC vendor. This version of
the Top 500 included 209 systems built by HP.
The United States
continues to dominate the Top 500 list and especially the Top 10. According to
this version of the Top 500, nine out of the top 10 systems are located in the United
States, and seven of those supercomputers
belong to the DOE. The only Top 10 system not located in the United
States is the Dawning 5000A, which is housed
at the Shanghai Supercomputer
Center in China.
The next version of the Top 500 list will be released in June 2009.