Performance evaluation of some computer organisations

Recent trends in computer architecture studies tend to classify various configurations from the instruction and data stream point of view. Thus we have single instruction/single data stream (s.i.s.d.), single instruction/multiple data stream (s.i.m.d.) and finally multiple instruction/multiple data stream (m.i.m.d.) structures. Performance parameters are defined and analysed for these configurations. In the case of m.i.m.d. organisations, a simplified model has been analysed for both synchronous and asynchronous request arrivals. Results indicate the possibility of selecting an optimum amount of resource replication so that the cost utilisation is optimised.