Title: Application of interactive evolutionary strategy in fault-tolerant system capable of online self-repairing

Authors: Xiaoyan Yang; Yuanxiang Li; Yala Tong

Addresses: Hubei Collaborative Innovation Center for High-efficient Utilisation of Solar Energy, Hubei University of Technology, Wuhan, China; State Key Laboratory of Software Engineering, Computer School, Wuhan University, Wuhan, China ' State Key Laboratory of Software Engineering, Computer School, Wuhan University, Wuhan, China ' Hubei Collaborative Innovation Center for High-efficient Utilisation of Solar Energy, Hubei University of Technology, Wuhan, China

Abstract: Evolution mechanism is widely used in triple different-structure modular redundant (D-TMR) fault tolerant system to protect different modules and realise online self-repairing. How to enhance the efficiency and diversity of the generated module by evolution strategy is among the most commonly discussed. The paper puts forward a two-stage mutation evolution strategy (TMES) based on improved virtual reconfigurable architecture platform to evolve combination logical circuit. In order to improve the scalability and increase the diversity of the generated circuit, interactive evolution strategy and heterogeneous degree evaluation are introduced, and then interactive TMES (ITMES) and improved ITMES (IITMES) are presented. The proposed schemes are tested with the evolutions of a 2-bit multiplier, a 3-bit multiplier, and a 3-bit full adder. The obtained results demonstrate that IITMES scheme has better average generation and more circuit type of generated successful individual, and has the potential to strengthen the reliability of the D-TMR system.

Keywords: evolvable hardware; triple different-structure modular redundancy; VRA; interactive evolution strategies.

DOI: 10.1504/IJCSE.2017.085980

International Journal of Computational Science and Engineering, 2017 Vol.15 No.1/2, pp.57 - 65

Received: 05 Jan 2016
Accepted: 03 Mar 2016

Published online: 21 Aug 2017 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article