Energy-centric dynamic fan control

  • Benoît Pradelle
  • Nicolas Triquenaux
  • Jean Christophe Beyler
  • William Jalby
Special Issue Paper

Abstract

Fans are one of the components performing cooling whose power consumption can be reduced by precise, energy-aware control. Such energy-efficient fan controllers must carefully manage fan speeds in order to remain as close as possible to the optimal setting, simultaneously minimizing the power leakage due to heat and fan power consumption, while avoiding overheating.

The following paper presents a new Dynamic Fan Controller for Energy (DFaCE) for minimizing the energy consumption of several fans. DFaCE learns the optimal fan setting with no prior knowledge of the hardware setup nor the governing physics, all the while performing useful work on the computer. Once the optimal fan setting is found, the system immediately applies it to minimize the power consumption of the computer at no cost. The system is also evaluated over a set of benchmarks and achieves up to 46 % in the cooling subsystem compared to common temperature-driven control strategies.

Keywords

Energy Temperature Fan control Hill climbing 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Benoît Pradelle
    • 1
  • Nicolas Triquenaux
    • 1
  • Jean Christophe Beyler
    • 2
  • William Jalby
    • 1
  1. 1.Université de Versailles—Exascale Computing ResearchVersaillesFrance
  2. 2.Intel France—Exascale Computing ResearchVersaillesFrance

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