DRVS: Power-efficient reliability management through Dynamic Redundancy and Voltage Scaling under variations

Mohammad Salehi, Mohammad Khavari Tavana, Semeen Rehman, Florian Kriebel, Muhammad Shafique, Alireza Ejlali, Jörg Henkel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Many-core processors facilitate coarse-grained reliability by exploiting available cores for redundant multithreading. However, ensuring high reliability with reduced power consumption necessitates joint considerations of variations in vulnerability, performance and power properties of software as well as the underlying hardware. In this paper, we propose a power-efficient reliability management system for many-core processors. It exploits various basic redundancy techniques (like, dual and triple modular redundancy) operating in different voltage-frequency levels, each offering distinct reliability, performance and power properties. Our system performs Dynamic Redundancy and Voltage Scaling (DRVS) considering process variations in hardware, and diversities in software vulnerability and execution time properties. Experiments show that DRVS system provides significant reliability improvements while providing up to 60% reduced power consumption compared to state-of-the-art techniques.

Original languageEnglish (US)
Title of host publicationProceedings of the International Symposium on Low Power Electronics and Design, ISLPED 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages225-230
Number of pages6
ISBN (Electronic)9781467380096
DOIs
StatePublished - Sep 21 2015
Event20th IEEE/ACM International Symposium on Low Power Electronics and Design, ISLPED 2015 - Rome, Italy
Duration: Jul 22 2015Jul 24 2015

Publication series

NameProceedings of the International Symposium on Low Power Electronics and Design
Volume2015-September
ISSN (Print)1533-4678

Other

Other20th IEEE/ACM International Symposium on Low Power Electronics and Design, ISLPED 2015
CountryItaly
CityRome
Period7/22/157/24/15

Keywords

  • Power demand
  • Redundancy
  • Software
  • Software reliability
  • Timing
  • Tunneling magnetoresistance

ASJC Scopus subject areas

  • Engineering(all)

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