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doi:10.1016/0020-0255(87)90032-6 
Copyright © 1987 Published by Elsevier Science Inc.
Analysis of a class of cluster-based multiprocessor systems*1
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Dharma P. Agrawal† and I. O. Mahgoub
Received 27 March 1987.
Abstract
We introduce a class of cluster-based multiprocessor systems and analyze its performance for three possible situations of processor-memory requests. The simplest one assumes that a processor is equally likely to address any one of the memory modules. But, in reality, one processor might communicate more frequently with only a few memory modules, known as the “favorite memories,” and this is covered as the second case. In the third scheme, a private memory is added in addition to the favorite memories. The system bandwidth has been evaluated, and the results show that the cluster-based system performs well and is fairly close to the crossbar system for high rates of favorite requests. In addition, the cluster-based scheme is observed to outperform a typical multiple-bus system (with number of buses equal to half the number of processors).
