Conference paper

SALVADOR Ruben, OTERO Andres, MORA Javier, DE la Torre Eduardo, SEKANINA Lukáš and RIESGO Teresa. Fault Tolerance Analysis and Self-Healing Strategy of Autonomous, Evolvable Hardware Systems. In: Proc. of the 2011 International Conference on ReConFigurable Computing and FPGAs. Los Alamitos: IEEE Computer Society, 2011, pp. 164-169. ISBN 978-0-7695-4551-6.
Publication language:english
Original title:Fault Tolerance Analysis and Self-Healing Strategy of Autonomous, Evolvable Hardware Systems
Title (cs):Analýza odolnosti proti poruchám a samoopravující strategie v autonomních vyvíjejících se HW systémech
Pages:164-169
Proceedings:Proc. of the 2011 International Conference on ReConFigurable Computing and FPGAs
Conference:2011 International Conference on ReConFigurable Computing and FPGAs
Place:Los Alamitos, US
Year:2011
ISBN:978-0-7695-4551-6
Publisher:IEEE Computer Society
URL: [PDF]
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Keywords
Evolvable Hardware, Fault Tolerance, Self-Healing, Autonomous Systems, FPGA, Partial Dynamic Reconfiguration
Annotation
This paper presents an analysis of the fault tolerance achieved by an autonomous, fully embedded evolvable
hardware system, which uses a combination of partial dynamic reconfiguration and an evolutionary algorithm (EA). It
demonstrates 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).
BibTeX:
@INPROCEEDINGS{
   author = {Ruben Salvador and Andres Otero and Javier Mora and Eduardo
	Torre la De and Luk{\'{a}}{\v{s}} Sekanina and Teresa Riesgo},
   title = {Fault Tolerance Analysis and Self-Healing Strategy of
	Autonomous, Evolvable Hardware Systems},
   pages = {164--169},
   booktitle = {Proc. of the 2011 International Conference on ReConFigurable
	Computing and FPGAs},
   year = {2011},
   location = {Los Alamitos, US},
   publisher = {IEEE Computer Society},
   ISBN = {978-0-7695-4551-6},
   language = {english},
   url = {http://www.fit.vutbr.cz/research/view_pub.php.en.iso-8859-2?id=9831}
}

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