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IBM Dominates Top 500 Supercomputer List As Overall Performance Continues to Grow


The 17th edition of the Top 500 list of the world’s fastest supercomputers was released last week at the International Supercomputer Conference in Heidelberg, Germany.

The list, compiled by Hans Meuer of the University of Mannheim, Erich Strohmaier and Horst Simon of the US Department of Energy’s National Energy Research Scientific Computing Center, and Jack Dongarra of the University of Tennessee, ranks computers based on the Linpack benchmark, which reflects the performance of a dedicated system for solving a dense system of linear equations.

IBM tops the latest edition of the semi-annual in both total installed systems (201 installed, 40 percent of the total), and total installed performance (Rmax 46,260 Gflop/s, Rpeak 71,702 Gflop/s). Sun Microsystems was in second place in installed systems (81 installed, 16 percent of the total), while Cray placed second in terms of installed performance (Rmax 14,211 Gflop/s, Rpeak 21,205 Gflop/s). SGI was third in both installed systems (63) and performance (Rmax 11,113 Gflop/s, Rpeak 16,630 Gflop/s).

The IBM ASCI White system at Lawrence Livermore National Laboratory is still the number one supercomputer in the world, with a performance of 7.2 Tflop/s on the Linpack benchmark. The list now includes 12 systems exceeding the 1 Tflop/s level of maximum performance and 25 systems exceeding 1 Tflop/s level for peak performance. The slowest system on the newest listing is 67.8 Gflop/s, compared to 55.1 Gflop/s six months ago and 43.82 Gflop/s in June 2000.

The complete list is available at

— BT

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