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

Salehi, M ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1109/ISLPED.2015.7273518
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2015
  4. Abstract:
  5. 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
  6. Keywords:
  7. Software ; Computer software ; Electric power utilization ; Fault tolerant computer systems ; Hardware ; Low power electronics ; Multitasking ; Reconfigurable hardware ; Redundancy ; Reliability ; Tunnelling magnetoresistance ; Voltage scaling ; Power demands ; Reduced power consumption ; Redundant multithreading ; Software vulnerabilities ; State-of-the-art techniques ; Timing ; Triple modular redundancy ; Software reliability
  8. Source: 20th IEEE/ACM International Symposium on Low Power Electronics and Design, ISLPED 2015, 22 July 2015 through 24 July 2015 ; Volume 2015 , September , 2015 , Pages 225-230 ; 15334678 (ISSN) ; 9781467380096 (ISBN)
  9. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7273518