ABSTRACT: Many Applications of Mobile Ad Hoc

In studying or designing parallel and distributedsystems one should have available a robust analyticalmodel that includes the major parameters thatdetermines the system performance. Jackson networkshave been very successful in modeling parallel anddistributed systems. However, Jackson networks havetheir limitations. In particular, the product-form solutionof Jackson networks assumes steady state andexponential service centers with certain specializedqueueing discipline. In this paper, we present aperformance model that can be used to study thetransient behavior of parallel and distributed systemswith finite workload. When the number of tasks to beexecuted is large enough, the model approaches theproduct-form of Jackson networks (steady state solution).We show how to use the model to analyze theperformance of parallel and distributed systems. Wealso use the model to show to what extent the product-formsolution of Jackson networks can be used.