Quasi-Static Voltage Scaling for Energy Minimization with Time Constraints

Supply voltage scaling and adaptive body-biasing are important techniques that help to reduce the energy dissipation of embedded systems. This is achieved by dynamically adjusting the voltage and performance settings according to the application needs. In order to take full advantage of slack that a...

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Bibliographic Details
Main Authors: Andrei, Alexandru, Schmitz, Marcus T., Eles, Petru, Peng, Zebo, Hashimi, Bashir M. Al
Format: Conference Proceeding
Language:English
Subjects:
Computer science
Computer systems organization > Embedded and cyber-physical systems
Computer systems organization > Real-time systems
Computing methodologies > Modeling and simulation > Model development and analysis > Modeling methodologies
Computing methodologies > Symbolic and algebraic manipulation > Symbolic and algebraic algorithms
Datavetenskap
Dynamic voltage scaling
Embedded computing
Energy consumption
General and reference > Cross-computing tools and techniques > Performance
Information science
Information technology
Informationsteknik
Minimization
Runtime
TECHNOLOGY
TEKNIKVETENSKAP
Theory of computation > Design and analysis of algorithms
Theory of computation > Design and analysis of algorithms > Online algorithms > Online learning algorithms
Theory of computation > Models of computation > Interactive computation
Theory of computation > Theory and algorithms for application domains > Machine learning theory > Online learning theory
Threshold voltage
Time factors
Voltage control
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Description
Summary:Supply voltage scaling and adaptive body-biasing are important techniques that help to reduce the energy dissipation of embedded systems. This is achieved by dynamically adjusting the voltage and performance settings according to the application needs. In order to take full advantage of slack that arises from variations in the execution time, it is important to recalculate the voltage (performance) settings during run-time, i.e., online. However, voltage scaling (VS) is computationally expensive, and thus significantly hampers the possible energy savings. To overcome the online complexity, we propose a quasi-static voltage scaling scheme, with a constant online time complexity O(1). This allows to increase the exploitable slack as well as to avoid the energy dissipated due to online recalculation of the voltage settings. We conduct several experiments that demonstrate the advantages of the proposed technique over the previously published voltage scaling approaches.
ISSN:1530-1591
1558-1101
DOI:10.1109/DATE.2005.250