LINPACK

System Specification Linpack Result (GFLOPS) Elapsed Time
4 nodes (16GB) w/o Advance boards 136.0 48.4 minutes
4 nodes (16GB) w/ 2 x Advance boards each 364.2 18.4 minutes
1 node (16GB) w/o Advance boards 34.0
1 node (16GB) w/ 2 x Advance boards 90.1

Note: Previously published Linpack results for similar single node systems were 34.9 GFLOPS for the standard node and 93 GFLOPS for an accelerated node with two ClearSpeed Advance boards. The variations are a result of small differences between system configurations and problem sizes used during the benchmark runs.

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Top 500 Results from November 1996


Rank Site System Processors Rmax Rpeak
1 Center for Computational Science
University of Tsukuba, Japan		 CP-PACS/2048
Hitachi		 2048 368.2 614.4
2 National Aerospace Laboratory
Japan, Wind Tunnel, Fujitsu		 Numerical 167 229 281.26
3 University of Tokyo, Japan SR2201/1024
Hitachi		 1024 220.4 307
4 Sandia National Laboratories, Unites States XP/S140
Intel		 3680 143.4 184
5 Oak Ridge National Laboratory XP/S-MP 150 3072 127.1 154

 

Specifications of benchmark system supplied by Hewlett Packard and tested by ClearSpeed Technology

Four HP ProLiant DL380 G5 servers, each with:

The four servers were connected with an HP Procurve 2824 Switch

The Linpack Benchmark and the Top500

The Linpack Benchmark was introduced by Jack Dongarra. A detailed description as well as a list of performance results on a wide variety of machines is available in postscript form from netlib. A parallel implementation of the Linpack benchmark and instructions on how to run it can be found at http://www.netlib.org/benchmark/hpl/.

The benchmark used in the Linpack Benchmark is to solve a dense system of linear equations. For the Top500, a version of the benchmark is used that allows the user to scale the size of the problem and to optimize the software in order to achieve the best performance for a given machine. This performance does not reflect the overall performance of a given system, as no single number ever can. It does, however, reflect the performance of a dedicated system for solving a dense system of linear equations. Since the problem is very regular, the performance achieved is quite high, and the performance numbers give a good correction of peak performance.

Top500 Description

The Top500 table shows the 500 most powerful commercially available computer systems known. To keep the list as compact as possible, only a part of the data evaluated is shown on the website including:

Information about the Top500 can be found at www.top500.org.