IBM Corp. retained its lead of the Top500 list of supercomputers with its BlueGene/L System installed at the U.S. Department of Energy’s (DOE’s) Lawrence Livermore National Laboratories in Livermore, California. The system topped the twice-yearly list of the fastest computers in the world for the third consecutive time and is likely to remain number one for some time since its size doubled earlier this year.

The list, the twenty-sixth to be issued, was due to be announced Monday at the Supercomputing conference (SC05) taking place in Seattle through Friday.

There was some shakeup among the global top ten supercomputers with new entrants displacing some incumbents on June’s list.

Cray Inc. notched up one new system and one revamped system, while IBM and Dell Inc. had one new system apiece in the top ten. Two IBM eServer Blue Gene systems on June’s list dropped off the top ten — the Blue Protein supercomputer at the Computational Biology Research Center in Japan and a Blue Gene machine at the Ecole Polytechnique F

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