NDLI: A Framework for Robust HLA-based Distributed Simulations

Content Provider	IEEE Xplore Digital Library
Author	Chen, D. Turner, S.J. Wentong Cai
Copyright Year	2006
Description	Author affiliation: University of Birmingham, UK (Chen, D.)
Abstract	The High Level Architecture (HLA) is a standard for the interoperability and reuse of simulation components, referred to as federates. Large scale HLA-compliant simulations are built to study complex problems, and they often involve a large number of federates and vast computing resources. Simulation federates running at different locations are liable to failure. The failure of one federate can lead to the crash of the overall simulation execution. Such risk increases with the scale of a distributed simulation. Hence, fault-tolerance is required to support runtime robustness. This paper introduces a framework for robust HLAbased distributed simulations using a Decoupled Federate Architecture. Our framework exploits the architecture to provide a generic fault-tolerant model, that exploits a dynamic substitution approach to deal with failure. A sender-based method is designed to ensure reliable in-transit message delivery, which is coupled with a novel algorithm to perform effective fossil collection. The fault-tolerant model also avoids any unnecessary repeated computation when handling failure. The framework supports reusability of legacy federate code, and it is platform-neutral and independent of federate modeling approaches. Experiments have been carried out to validate and benchmark the fault-tolerant federates using an example of a simple supply-chain simulation. The experimental results show that the framework provides correct failure recovery and indicate that the overhead for facilitating fault-tolerance is minimal.
Starting Page	183
Ending Page	192
File Size	393020
Page Count	10
File Format	PDF
ISBN	0769525873
ISSN	10874097
DOI	10.1109/PADS.2006.7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-05-24
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Robustness Computational modeling Fault tolerance Runtime Computer architecture Large-scale systems Computer crashes Discrete event simulation Internet Military computing
Content Type	Text
Resource Type	Article

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