Publication detail

Fault Tolerance Analysis and Self-Healing Strategy of Autonomous, Evolvable Hardware Systems

SALVADOR, R. OTERO, A. MORA, J. DE LA TORRE, E. SEKANINA, L. RIESGO, T.

Original Title

Fault Tolerance Analysis and Self-Healing Strategy of Autonomous, Evolvable Hardware Systems

Type

article in a collection out of WoS and Scopus

Language

English

Original Abstract

This paper presents an analysis of the fault tolerance achieved by an autonomous, fully embedded evolvablehardware system, which uses a combination of partial dynamic reconfiguration and an evolutionary algorithm (EA). Itdemonstrates that the system may self-recover from both transient and cumulative permanent faults. This self-adaptive system, based on a 2D array of 16 (4×4) Processing Elements (PEs), is tested with an image filtering application. Results show that it may properly recover from faults in up to 3 PEs, that is, more than 18% cumulative permanent faults. Two fault models are used for testing purposes, at PE and CLB levels. Two self-healing strategies are also introduced, depending on whether fault diagnosis is available or not. They are based on scrubbing, fitness evaluation, dynamic partial reconfiguration and in-system evolutionary adaptation. Since most of these adaptability features are already available on the system for its normal operation, resource cost for self-healing is very low (only some code additions in the internal microprocessor core).

Keywords

Evolvable Hardware, Fault Tolerance, Self-Healing, Autonomous Systems, FPGA, Partial Dynamic Reconfiguration

Authors

SALVADOR, R.; OTERO, A.; MORA, J.; DE LA TORRE, E.; SEKANINA, L.; RIESGO, T.

RIV year

2011

Released

8. 12. 2011

Publisher

IEEE Computer Society

Location

Los Alamitos

ISBN

978-0-7695-4551-6

Book

Proc. of the 2011 International Conference on ReConFigurable Computing and FPGAs

Pages from

164

Pages to

169

Pages count

6

URL

https://www.fit.vut.cz/research/publication/9831/

BibTex

@inproceedings{BUT76495,
  author="Ruben {Salvador} and Andres {Otero} and Javier {Mora} and Eduardo {De la Torre} and Lukáš {Sekanina} and Teresa {Riesgo}",
  title="Fault Tolerance Analysis and Self-Healing Strategy of Autonomous, Evolvable Hardware Systems",
  booktitle="Proc. of the 2011 International Conference on ReConFigurable Computing and FPGAs",
  year="2011",
  pages="164--169",
  publisher="IEEE Computer Society",
  address="Los Alamitos",
  isbn="978-0-7695-4551-6",
  url="https://www.fit.vut.cz/research/publication/9831/"
}

Documents

reconfig2011_web.pdf