To provide a better basis for statistics on high-performance computers, we list the sites that have the 500 most powerful computer systems installed. The best Linpack benchmark performance achieved is used as a performance measure in ranking the computers. This list has been updated twice a year since June 1993. Here you can get information about all published lists.

There are two primary sites of the TOP500. One in Germany at the University of Mannheim, one in the USA at Netlib and one mirror in Japan at Phase.