Publication Details

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. Fault Tolerance Analysis and Self-Healing Strategy of Autonomous, Evolvable Hardware Systems. Proc. of the 2011 International Conference on ReConFigurable Computing and FPGAs. Los Alamitos: IEEE Computer Society, 2011. p. 164-169. ISBN: 978-0-7695-4551-6.
Czech title
Analýza odolnosti proti poruchám a samoopravující strategie v autonomních vyvíjejících se HW systémech
Type
conference paper
Language
English
Authors
Salvador Ruben (RG EHW)
Otero Andres
Mora Javier
De la Torre Eduardo
Sekanina Lukáš, prof. Ing., Ph.D. (DCSY)
Riesgo Teresa
Keywords

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

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).

Published
2011
Pages
164–169
Proceedings
Proc. of the 2011 International Conference on ReConFigurable Computing and FPGAs
ISBN
978-0-7695-4551-6
Publisher
IEEE Computer Society
Place
Los Alamitos
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/"
}
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