Controlling-value-based power gating considering controllability propagation and power-off probability

Zhe Du, Yu Jin, Shinji Kimura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Power gating technology is useful in reducing standby leakage current. Controlling value based power gating is a fine-grained power gating approach using the controlling value of logic elements. However, power saving capability suffers from the steady maximum depth constraint, which prohibits the power gating assignment when the control of a gate increases the critical path length. To increase power savings, this paper proposes a power gating control extraction method based on controllability propagation and power-off probability. Multiple power domains can be clustered by a smaller depth signal with the controllability propagation. Experimental results show that 21.4% power reduction can be obtained in average, achieving 8.5% improvement compared with previous algorithm.

Original languageEnglish
Title of host publication2013 IEEE 10th International Conference on ASIC, ASICON 2013
PublisherIEEE Computer Society
ISBN (Print)9781467364157
DOIs
Publication statusPublished - 2013 Jan 1
Event2013 IEEE 10th International Conference on ASIC, ASICON 2013 - Shenzhen, China
Duration: 2013 Oct 282013 Oct 31

Publication series

NameProceedings of International Conference on ASIC
ISSN (Print)2162-7541
ISSN (Electronic)2162-755X

Other

Other2013 IEEE 10th International Conference on ASIC, ASICON 2013
CountryChina
CityShenzhen
Period13/10/2813/10/31

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ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

Du, Z., Jin, Y., & Kimura, S. (2013). Controlling-value-based power gating considering controllability propagation and power-off probability. In 2013 IEEE 10th International Conference on ASIC, ASICON 2013 [6811909] (Proceedings of International Conference on ASIC). IEEE Computer Society. https://doi.org/10.1109/ASICON.2013.6811909