Dual-Core Lockstep enhanced with redundant multithread support and control-flow error detection

Please use this identifier to cite or link to this item: http://hdl.handle.net/10045/101318
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Title: Dual-Core Lockstep enhanced with redundant multithread support and control-flow error detection
Authors: Peña-Fernández, Manuel | Serrano-Cases, Alejandro | Lindoso, Almudena | García-Valderas, Mario | Entrena, Luis | Martínez-Álvarez, Antonio | Cuenca-Asensi, Sergio
Research Group/s: UniCAD: Grupo de investigación en CAD/CAM/CAE de la Universidad de Alicante
Center, Department or Service: Universidad de Alicante. Departamento de Tecnología Informática y Computación
Keywords: Dual-Core Lockstep | Redundant multithread support | Control-flow error detection
Knowledge Area: Arquitectura y Tecnología de Computadores
Issue Date: Sep-2019
Publisher: Elsevier
Citation: Microelectronics Reliability. 2019, 100-101: 113447. doi:10.1016/j.microrel.2019.113447
Abstract: This work presents a new Dual-Core LockStep approach to enhance fault tolerance in microprocessors. The proposed technique is based on the combination of software-based data checking and trace-based control-flow checking through an external hardware module. The hardware module is connected to the trace interface and is able to observe the execution of all the processors in the architecture. The proposed approach has been implemented for a dual core commercial processor. Experimental results demonstrate that the proposed technique has a high error detection capability with up to 99.63% error coverage.
Sponsor: This work was supported in part by the Spanish Ministry of Economy and Competitiveness under projects ESP2015-68245-C4-1-P, ESP2015-68245-C4-3-P and by the Community of Madrid under grant IND2017/TIC-7776.
URI: http://hdl.handle.net/10045/101318
ISSN: 0026-2714 (Print) | 1872-941X (Online)
DOI: 10.1016/j.microrel.2019.113447
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2019 Elsevier Ltd.
Peer Review: si
Publisher version: https://doi.org/10.1016/j.microrel.2019.113447
Appears in Collections:INV - UNICAD - Artículos de Revistas

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