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Instruction level power analysis and optimization of software (1996)
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| Venue: | Journal of VLSI Signal Processing |
| Citations: | 179 - 1 self |
BibTeX
@ARTICLE{Tiwari96instructionlevel,
author = {Vivek Tiwari and Sharad Malik and Andrew Wolfe and Mike Tien-chien Lee},
title = {Instruction level power analysis and optimization of software},
journal = {Journal of VLSI Signal Processing},
year = {1996},
volume = {13},
pages = {1--18}
}
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Abstract
Abstract. The increasing popularity of power constrained mobile computers and embedded computing applications drives the need for analyzing and optimizing power in all the components of a system. Software constitutes a major component of today's systems, and its role is projected togrow even further. Thus, an ever increasing portion of the functionality of today's systems is in the form of instructions, as opposed to gates. This motivates the need for analyzing power consumption from the point of view of instructions- something that traditional circuit and gate level power analysis tools are inadequate for. This paper describes an alternative, measurement based instruction level power analysis approach that provides an accurate and practical way of quantifying the power cost of software. This technique has been applied to three commercial, architecturally di erent processors. The salient results of these analyses are summarized. Instruction level analysis of a processor helps in the development of models for power consumption of software executing on that processor. The power models for the subject processors are described and interesting observations resulting from the comparison of these models are highlighted. The ability to evaluate software in terms of power consumption makes it feasible to search for low power implementations of given programs. In addition, it can guide the development of general tools and techniques for low power software. Several ideas in this regard as motivated by the power analysis of the subject processors are also described. 1.
Keyphrases
instruction level power analysis power consumption subject processor major component low power software power model low power implementation several idea instruction something instruction level analysis power cost di erent processor traditional circuit power analysis gate level power analysis tool salient result general tool interesting observation instruction level power analysis approach practical way mobile computer
