Objectsim - Conceptual Modelling Towards A Generic Parallel Distributed Computer Architecture Simulator.

This paper describes the conceptual design of OBJECTSIM. OBJECTSIM represents a new flexible and generic approach to modelling the performance of parallel and distributed systems. Performance measures of interest include overall execution speed, numbers of secondary memory accesses and network reconfiguration and routing activity. Using distributed simulation techniques adapted from the research on the Time Warp Operating System (TWOS)[15,16], and drawing on the theoretical design principles laid down by Tanir and Sevinc[17] OBJECTSIM achieves a high level of performance, flexibility and adaptability. OBJECTSIM overcomes the narrow focus of previous simulators by specifying a small number of generic simulation objects (and an associated hierarchy) that are capable of implementing a wide range of target systems. Target systems range from multi-stage interconnection networks (MINs) and ATM and B-ISDN networks, through to bus and network based multiprocessors. The combination of this k..