Real time speed of a conservative parallel simulation

This paper examines the real time speed of the conservative parallel simula tion of a telecommunications network. Real time speed is defined as the rat io of the simulated time to the execution time. A generic simulation model of SS7 networks is executed under the conservative mechanism. A technique u sed to secure a stable lower bound on the speed of the SS7 simulator is int roduced and analyzed. Using this technique simulation models ranging in siz e, from 16 to 64 nodes, are executed on similarly sized and configured tran sputer networks. Empirical data on the real time performance of the system are presented. The results confirm that under the given conditions, the per formance boundaries of the simulator are both stable and scalable: independ ent of work load density and size of the modeled network, simulation of a g iven period of model activity can be guaranteed within a predetermined peri od of real time.