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Dynamic knobs for responsive power-aware computing

Published: 05 March 2011 Publication History

Abstract

We present PowerDial, a system for dynamically adapting application behavior to execute successfully in the face of load and power fluctuations. PowerDial transforms static configuration parameters into dynamic knobs that the PowerDial control system can manipulate to dynamically trade off the accuracy of the computation in return for reductions in the computational resources that the application requires to produce its results. These reductions translate directly into performance improvements and power savings.
Our experimental results show that PowerDial can enable our benchmark applications to execute responsively in the face of power caps that would otherwise significantly impair responsiveness. They also show that PowerDial can significantly reduce the number of machines required to service intermittent load spikes, enabling reductions in power and capital costs.

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Published In

cover image ACM SIGPLAN Notices
ACM SIGPLAN Notices  Volume 46, Issue 3
ASPLOS '11
March 2011
407 pages
ISSN:0362-1340
EISSN:1558-1160
DOI:10.1145/1961296
Issue’s Table of Contents
  • cover image ACM Conferences
    ASPLOS XVI: Proceedings of the sixteenth international conference on Architectural support for programming languages and operating systems
    March 2011
    432 pages
    ISBN:9781450302661
    DOI:10.1145/1950365
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Publication History

Published: 05 March 2011
Published in SIGPLAN Volume 46, Issue 3

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Author Tags

  1. accuracy-aware computing
  2. power-aware computing
  3. self-aware systems

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