Development and benchmarking of an epoch time synchronization method for distributed simulation

Adityavijay Rathore, Balaji Balaraman, Xiaobing Zhao, Jayendran Venkateswaran, Young Jun Son, Richard A. Wysk

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

In this paper, a new epoch time synchronization approach for distributed simulation federates is presented. The approach allows federates in the simulation system to advance their local times at full speed while it is safe to do so. That is, the simulation moves rapidly to the minimum next epoch (interaction) event time, which is calculated using the minimum sojourn time for each federate, and then slows for federation synchronization. The proposed approach is demonstrated using a manufacturing supply chain simulation composed of four distributed federates. Experiments are executed to benchmark the proposed epoch time synchronization method against conventional conservative synchronization methods to show typical improvements for simulation operation. The experimental results reveal that the proposed approach reduces supply chain simulation execution time significantly while maintaining complete accuracy as compared with traditional conservative federation coordination approaches.

Original languageEnglish (US)
Pages (from-to)69-78
Number of pages10
JournalJournal of Manufacturing Systems
Volume24
Issue number2
DOIs
StatePublished - Dec 1 2005

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Keywords

  • Distributed simulation
  • Look-ahead algorithm
  • Supply chain modeling
  • Time synchronization

ASJC Scopus subject areas

  • Software
  • Control and Systems Engineering
  • Hardware and Architecture
  • Industrial and Manufacturing Engineering

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