NDLI: Analysis of an energy efficient optimistic TMR scheme

Content Provider	IEEE Xplore Digital Library
Author	Zhu, D. Melhem, R. Mosse, D. Elnozahy, E.
Copyright Year	2004
Description	Author affiliation: Dept. of Comput. Sci., Pittsburgh Univ., PA, USA (Zhu, D.; Melhem, R.; Mosse, D.)
Abstract	For mission critical real-time applications, such as satellite and surveillance systems, a high level of reliability is desired as well as low energy consumption. In this paper, we propose a general system power model and explore the optimal speed setting to minimize system energy consumption for an optimistic TMR (OTMR) scheme. The performance of OTMR is compared with that of TMR (triple modular redundancy) and duplex with respect to energy and reliability. The results show that OTMR is always better than TMR by achieving higher levels of reliability and consuming less energy. With checkpoint overhead and recovery, duplex is not applicable when system load is high. However, duplex may be more energy efficient than OTMR depending on system static power and checkpointing overhead. Moreover, with one recovery section, duplex achieves comparable levels of reliability as that of OTMR.
Sponsorship	IEEE Comput. Soc. Tech. Committee on Parallel Processing IEEE Comput. Soc. Tech. Committee on Distributed Processing
Starting Page	559
Ending Page	568
File Size	595172
Page Count	10
File Format	PDF
ISBN	0769521525
ISSN	15219097
DOI	10.1109/ICPADS.2004.1316138
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-07-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Energy efficiency Power system reliability Energy consumption Mission critical systems Real time systems Satellites Surveillance Power system modeling Redundancy Checkpointing
Content Type	Text
Resource Type	Article
Subject	Hardware and Architecture

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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