NDLI: Parallel discrete-event simulation of fcfs stochastic queueing networks

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Parallel discrete-event simulation of fcfs stochastic queueing networks

Content Provider	NASA Technical Reports Server (NTRS)
Author	Nicol, David M.
Copyright Year	1988
Description	Physical systems are inherently parallel. Intuition suggests that simulations of these systems may be amenable to parallel execution. The parallel execution of a discrete-event simulation requires careful synchronization of processes in order to ensure the execution's correctness; this synchronization can degrade performance. Largely negative results were recently reported in a study which used a well-known synchronization method on queueing network simulations. Discussed here is a synchronization method (appointments), which has proven itself to be effective on simulations of FCFS queueing networks. The key concept behind appointments is the provision of lookahead. Lookahead is a prediction on a processor's future behavior, based on an analysis of the processor's simulation state. It is shown how lookahead can be computed for FCFS queueing network simulations, give performance data that demonstrates the method's effectiveness under moderate to heavy loads, and discuss performance tradeoffs between the quality of lookahead, and the cost of computing lookahead.
File Size	876095
Page Count	27
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19880014819
Archival Resource Key	ark:/13960/t2h759n6f
Language	English
Publisher Date	1988-05-01
Access Restriction	Open
Subject Keyword	Computer Programming And Software Stochastic Processes Computer Networks Computerized Simulation Discrete Functions Queueing Theory Parallel Processing Computers Computer Programs Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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