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Quasi-Static Assignment of Voltages and Optional Cycles for Maximizing Rewards in Real-Time Systems with Energy Constraints
Linköping University, The Institute of Technology. Linköping University, Department of Computer and Information Science, ESLAB - Embedded Systems Laboratory.
Linköping University, The Institute of Technology. Linköping University, Department of Computer and Information Science, ESLAB - Embedded Systems Laboratory.
Linköping University, The Institute of Technology. Linköping University, Department of Computer and Information Science, ESLAB - Embedded Systems Laboratory.
2005 (English)In: 42nd Design Automation Conference,2005, Anaheim, CA, USA: IEEE Computer Society Press , 2005, 889- p.Conference paper, Published paper (Refereed)
Abstract [en]

There exist real-time systems for which it is possible to trade off precision for timeliness. In these cases, a function assigns reward to the application depending on the amount of computation allotted to it. At the same time, many such applications run on battery-powered devices with stringent energy constraints. This paper addresses the problem of maximizing rewards subject to time and energy constraints. We propose a quasi-static approach where the problem is solved in two steps: first, at design-time, a number of solutions are computed and stored (off-line phase); second, one of the precomputed solutions is selected at run-time based on actual values of time and energy (on-line phase). Thus our approach is able to exploit, with low on-line overhead, the dynamic slack caused by tasks executing less number of cycles than in the worst case. We conduct numerous experiments in order to show the advantages of our approach.

Place, publisher, year, edition, pages
Anaheim, CA, USA: IEEE Computer Society Press , 2005. 889- p.
Keyword [en]
real-time systems, quasi-static scheduling, energy optimization
National Category
Computer Science
Identifiers
URN: urn:nbn:se:liu:diva-24587DOI: 10.1145/1065579.1065813Local ID: 6762ISBN: 1-59593-058-2 (print)OAI: oai:DiVA.org:liu-24587DiVA: diva2:244909
Conference
42nd Design Automation Conference,2005
Available from: 2009-10-07 Created: 2009-10-07 Last updated: 2013-08-16

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Publisher's full texthttp://www.ida.liu.se/labs/eslab/publications/pap/db/dac05_luico.pdf

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Cortes, Luis-AlejandroEles, Petru IonPeng, Zebo

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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  • Other style
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Language
  • de-DE
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Output format
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