June 2001

The 17th TOP500 list was introduced at the SC2001 Conference in Heidelberg, June 20 -23, 2001.

At the top of the list, the U.S. Department of Energy Accelerated Strategic Computing Initiative (ASCI), which had claimed the top four slots on the previous TOP500 list, is now joined by the Department of Energyճ National Energy Research Scientific Computing Center (NERSC), an unclassified supercomputing center at Lawrence Berkeley National Laboratory (LBNL) in Berkeley, Calif.

The IBM ASCI White system at Lawrence Livermore National Laboratory is still the number one supercomputer in the world, with an improved performance of 7.2 teraflop/s (trillions of calculations per second) on the Linpack benchmark. The number two spot is now taken by the new IBM SP system at NERSC/LBNL. At number five is a new Hitachi SR8000/MPP at the University of Tokyo.

The list now indicates 12 systems exceeding the 1 teraflop/s level using the Linpack benchmark. The number eight system is an NEC SX5 at Osaka University and is the first classical vector system to break the 1 teraflop/s (Tflop/s) barrier.

The TOP500 already contains 25 systems exceeding 1 teraflop/s level for peak performance. Two of these systems are IBM Netfinity clusters at NCSA and Shell, at numbers 30 and 31 respectively.

Highlights from the Top 10:

  • ASCI White is #1 with an increased performance of 7.2 TF/s on the Linpack
  • Two new systems broke into the leading group of four ASCI systems from last year.
  • #2 is a new IBM SP system at NERSC/LBNL
  • #5 is a new Hitachi SR8000/MPP system at the University of Tokyo
  • Two more systems are new in the TOP10: - #8 a NEC SX5 installead at Osaka University, the first vector based system in the TOP500 - #10 a new IBM system at NCEP, which is an identical sister system to #9 at the same location
  • 12 systems have Linpack performance above 1 TFlop/s
  • 25 systems have peak performance above 1 TFlop/s including two IBM Netfinity clusters (#30 and #31)
  • 1.18 Tflop/s is the entry point for the Top 10

TOP 10 Sites for June 2001

For more information about the sites and systems in the list, click on the links or view the complete list.