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Reliability of data processing and fault compensation in unreliable arithmetic processors, Microprocessors and Microsystems

  • In logical circuits, like arithmetic operations in a processor system, arbitrary faults become a more tremendous aspect in future. Modern manufacturing processes lead to less reliability and higher vulnerability of software execution to soft-errors. The correctness of certain results is important especially for safety–critical applications whose reliability depends on the fault-free execution of each single instruction and the dependencies between them. The more complex a software is the more unreliable the outcome is. But, there is a contrary effect. If the probability for multiple faults increases, there is also the chance that two faults compensate each other and the result is correct again. This paper presents the basic ideas for such a reliability evaluation of a software's data flow with arbitrary soft-errors and the effect of fault compensation. Further, this evaluation provides a possibility to compare different implementations of a data flow with respect to the reliability. This is shown by the comparison of two different error codes as alternatives for coded data processing.

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Metadaten
Author:Peter Raab, Stefan Krämer, Jürgen MottokORCiDGND
DOI:https://doi.org/10.1016/j.micpro.2015.07.014
Parent Title (English):Microprocessors and Microsystems
Publisher:Elsevier
Document Type:Article
Language:English
Year of first Publication:2016
Release Date:2021/03/11
Volume:40
Issue:Februar
First Page:102
Last Page:112
Institutes:Fakultät Elektro- und Informationstechnik
Fakultät Elektro- und Informationstechnik / Laboratory for Safe and Secure Systems (LAS3)
Begutachtungsstatus:peer-reviewed
research focus:Digitalisierung
Licence (German):Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG