The effect of adaptivity on the performance of the OTIS-hypercube under different traffic patterns

Abstract. The OTIS-hypercube is an optoelectronic architecture for interconnecting the processing nodes of a multiprocessor system. In this paper, an empirical performance evaluation of the OTIS-hypercube is conducted for different traffic patterns and routing algorithms. It is shown that, depending on the traffic pattern, minimal path routing may not have the best performance and that adaptivity may be of no improvement. All judgments made are based on observations from the results of extensive simulation experiments of the interconnection network. In addition, logical explanations are suggested for the cause of certain noticeable performance characteristics. 1