PORTLAND, Ore. U.S. supercomputer makers are expected to dominate this year's list of the world's fastest supercomputers.
The list of world's fastest supercomputers will be released at the 20th International Supercomputer Conference (June 22-24) in Heidelberg, Germany.
IBM Corp. is expected to snag three of the top five slots, with Silicon Graphics Inc. (Mountain View, Calif.) taking third. NEC Corp. is the only non-U.S. supercomputer maker expected to make the list.
The fastest supercomputer list will be released by the TOP500 organization, which is an independent judge of supercomputer performance.
The TOP500 project originated in 1993 and each year provides a nonpartisan method of measuring supercomputer performance.
IBM's BlueGene/L supercomputer is expected to remain at the top of the TOP500 list, delivering peak performace of 91.8 teraflops.
The IBM BlueGene/L uses 32, 768 PowerPC440 central processing units, and will be be upgraded to 130,000 CPUs later this year to yield a predicted 360 teraflops. The BlueGene/L is installed at the Energy Department's Lawrence Livermore National Laboratory.
Moving up to second place for the first time is a new supercomputer dubbed the BlueGene/W that was recently installed at the IBM Thomas J. Watson Research Center (Yorktown Heights, N.Y.). The BlueGene/W tops 91.29 teraflops using over 30,000 PowerPC CPUs.
Third place is expected to go to NASA's Silicon Graphics' Altix with ten 160 Voltaire Infiniband 1.5-GHz CPUs and topping 60.9 teraflops.
Fourth place is seen going to NEC's "Earth Simulator," which uses 5,120 CPUs to top 40.9 teraflops.
Rounding out the top five will be IBM's Barcelona Supercomputer Center in Spain, which runs 3,564 2.2-GHz PowerPC970 CPU's, enabling it to top 31.4 teraflops.
TOP500 measures supercomputer performance using the "Linpack" benchmark. Linpack was created by computer visionary Jack Dongarra to compare computers that are solving a dense system of linear equations.