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<p>The authors analyze the performance of multiprocessor systems with a multistage interconnection network in the presence of faulty components. Models for estimating the system performance, as measured by its bandwidth and processing power, are developed for two different modes of operation. In the first mode, the operation of the system is fully synchronized and all processors which require memory access issue their requests simultaneously. In the second, each processor is allowed to issue its request at any time instant. For each of the two modes of operation, two models are presented providing lower and upper estimates for the bandwidth of multistage systems and an upper estimate for their processing power. The operation of 16*16 synchronous and asynchronous reconfigurable systems has been simulated and the bandwidth and processing power have been calculated.</p>
reconfigurable multistage systems; performance; multistage interconnection network; system performance; bandwidth; processing power; multiprocessing systems; multiprocessor interconnection networks; performance evaluation.

I. Koren and Z. Koren, "Discrete and Continuous Models for the Performance of Reconfigurable Multistage Systems," in IEEE Transactions on Computers, vol. 40, no. , pp. 1024-1033, 1991.
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