IBM tops new Top 500 list of fastest supercomputers

The 18th edition of the Top 500 list of the world's fastest supercomputers was released Friday by the representatives of the University of Mannheim, in Germany, and the University of Tennessee.

IBM Corp. held onto its No.1 spot on the list and captured three of the top five positions. Big Blue was the overall leader on the list, with 32 percent of the total 500 supercomputer systems.

In what list representatives called "a surprise move," Hewlett-Packard Co. supercomputers occupied 30 percent of the Top 500 list.

The Top 500 list is compiled in the order of performance ranking based on the Linpack supercomputing benchmark.

HP supercomputers do not appear on the list until position 148 with a 196.7GFlop HP SuperDome/Hyperplex system installed at the Agilant.

Silicon Graphics Inc. (SGI), Cray Inc., and Sun Microsystems Inc. followed IBM and HP in the number of systems appearing on the Top 500 list with 8 percent, 8 percent, and 6 percent, respectively.

Compaq Computer Corp. suddenly shot to position No. 2 on the list with a 4059GFlop AlphaServer SC installed at the Pittsburgh Supercomputing Center. In the last version of the Top 500 list released six months ago, the most powerful supercomputer from Compaq was listed at position No. 43, according to list representatives.

Eight of the Top 10 supercomputing systems were installed in the United States, which "demonstrates the leadership of the U.S. in the usage of high-performance computing," according to list representatives.

IBM's 7226GFlop ASCI White SP took first place on the list, followed by Compaq's system. A 3052GFlop IBM SP system garnished third place, followed by a 2379GFlop ASCI Red supercomputer from Intel Corp.

Hitachi Ltd. and SGI were the only other supercomputer makers to appear in the Top 10, coming in seventh and eighth, respectively.

The complete list can be seen at www.top500.org.

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