Updateable simulation of communication networks

Authors:
Steve L. Ferenci;Richard M. Fujimoto;Mostafa H. Ammar;Kalyan Perumalla;George F. Riley
Affiliations:
Georgia Institute of Technology, Atlanta, GA;Georgia Institute of Technology, Atlanta, GA;Georgia Institute of Technology, Atlanta, GA;Georgia Institute of Technology, Atlanta, GA;Georgia Institute of Technology, Atlanta, GA
Venue:
Proceedings of the sixteenth workshop on Parallel and distributed simulation
Year:
2002

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Abstract

A technique called updateable simulations is proposed to reduce the time to complete multiple executions of a discrete event simulation program. This technique updates the results of a prior simulation run rather than re-execute the entire simulation to take into account variations in the underlying simulation model. A framework for creating updateable simulations is presented. This framework is applied to the problem of simulating a set of cascaded ATM multiplexers and a network of ATM switches. Performance measurements of sequential and parallel implementations of these simulations on a shared memory multiprocessor are presented, demonstrating that updateable simulations can yield substantial reductions in the time required to complete multiple simulation runs if there is much similarity among the runs.