Performance Evaluation of Multiprocessor System Modelled as T-Out-of-S System

Simple generalized closed-form analytic solutions, using t-out-of-s system principle, are presented for tightly coupled multiprocessor systems employing multiplebus and crossbar interconnection networks. The system bandwidth is obtained taking into account the memory and bus interference. A single equation represents both uniform and local reference models of memory access. This expression holds for any demand pattern of memory access by the processors unlike the solutions given by others, which consider only some restricted memory access patterns. The results predicted by these models have been shown to be very close to the results of simulation studies done by others.