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Volume 9
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10.3390/electronics9040557
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Article

Survey on Approximate Computing and Its Intrinsic Fault Tolerance

by
Gennaro Rodrigues
1,†,
Fernanda Lima Kastensmidt
1,† and
Alberto Bosio
2,*,†
1
Universidade Federal do Rio Grande do Sul (UFRGS)-Institute of Informatics, Porto Alegre 90040-060, Brazil
2
Ecole Centrale de Lyon-Lyon Institute of Nanotechnology, 69130 Lyon, France
*
Author to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Electronics 2020, 9(4), 557; https://doi.org/10.3390/electronics9040557
Submission received: 20 February 2020 / Revised: 19 March 2020 / Accepted: 23 March 2020 / Published: 26 March 2020
(This article belongs to the Special Issue Approximate Computing: Design, Acceleration, Validation and Testing of Circuits, Architectures and Algorithms in Future Systems)
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Abstract

This work is a survey on approximate computing and its impact on fault tolerance, especially for safety-critical applications. It presents a multitude of approximation methodologies, which are typically applied at software, architecture, and circuit level. Those methodologies are discussed and compared on all their possible levels of implementations (some techniques are applied at more than one level). Approximation is also presented as a means to provide fault tolerance and high reliability: Traditional error masking techniques, such as triple modular redundancy, can be approximated and thus have their implementation and execution time costs reduced compared to the state of the art.
Keywords: approximate; computing; reliability; safety-critical approximate; computing; reliability; safety-critical

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MDPI and ACS Style

Rodrigues, G.; Lima Kastensmidt, F.; Bosio, A. Survey on Approximate Computing and Its Intrinsic Fault Tolerance. Electronics 2020, 9, 557. https://doi.org/10.3390/electronics9040557

AMA Style

Rodrigues G, Lima Kastensmidt F, Bosio A. Survey on Approximate Computing and Its Intrinsic Fault Tolerance. Electronics. 2020; 9(4):557. https://doi.org/10.3390/electronics9040557

Chicago/Turabian Style

Rodrigues, Gennaro, Fernanda Lima Kastensmidt, and Alberto Bosio. 2020. "Survey on Approximate Computing and Its Intrinsic Fault Tolerance" Electronics 9, no. 4: 557. https://doi.org/10.3390/electronics9040557

APA Style

Rodrigues, G., Lima Kastensmidt, F., & Bosio, A. (2020). Survey on Approximate Computing and Its Intrinsic Fault Tolerance. Electronics, 9(4), 557. https://doi.org/10.3390/electronics9040557

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