The computational speed of supercomputers

Authors:
Ingrid Y. Bucher
Affiliations:
Los Alamos National Laboratory
Venue:
SIGMETRICS '83 Proceedings of the 1983 ACM SIGMETRICS conference on Measurement and modeling of computer systems
Year:
1983

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Abstract

Problems related to the evaluation of computational speeds of supercomputers are discussed. Measurements of sequential speeds, vector speeds, and asynchronous parallel processing speeds are presented. A simple model is developed that allows us to evaluate the workload-dependent effective speed of current systems such as vector computers and asynchronous parallel processing systems. Results indicate that the effective speed of a supercomputer is severely limited by its slowest processing mode unless the fraction of the workload that has to be processed in this mode is negligibly small.