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Simulated Annealing Algorithm Combined with Chaos for Task Allocation in Real-Time Distributed Systems

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  • Wenbo Wu
  • Jiahong Liang
  • Xinyu Yao
  • Baohong Liu

Abstract

This paper addresses the problem of task allocation in real-time distributed systems with the goal of maximizing the system reliability, which has been shown to be NP-hard. We take account of the deadline constraint to formulate this problem and then propose an algorithm called chaotic adaptive simulated annealing (XASA) to solve the problem. Firstly, XASA begins with chaotic optimization which takes a chaotic walk in the solution space and generates several local minima; secondly XASA improves SA algorithm via several adaptive schemes and continues to search the optimal based on the results of chaotic optimization. The effectiveness of XASA is evaluated by comparing with traditional SA algorithm and improved SA algorithm. The results show that XASA can achieve a satisfactory performance of speedup without loss of solution quality.

Suggested Citation

  • Wenbo Wu & Jiahong Liang & Xinyu Yao & Baohong Liu, 2014. "Simulated Annealing Algorithm Combined with Chaos for Task Allocation in Real-Time Distributed Systems," Mathematical Problems in Engineering, Hindawi, vol. 2014, pages 1-13, August.
    • Handle: RePEc:hin:jnlmpe:151394
    DOI: 10.1155/2014/151394
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