Control synthesis and delay sensor deployment for efficient ASV designs

Chaofan Li, Sachin S. Sapatnekar, Jiang Hu

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

Abstract

Adaptive Supply Voltage (ASV) is a power-efficient approach to achieving resilience against process variation and circuit aging. Fine-grained ASV offers further power-efficiency gains, but entails relatively complex control circuit, which has not been well studied yet. This paper presents two control design techniques - one is rule-based control derived from network flow optimization and the other is finite state machine control. For the FSM control, a graph-based algorithm that automates the control vector generation is proposed. To the best of our knowledge, this work is the first dedicated study on fine-grained ASV control. This paper also presents an iterative greedy heuristic for delay sensor deployment in ASV designs. The effectiveness of these techniques is confirmed by experiments performed on ICCAD 2014 benchmark circuits. The results show that our techniques achieve around 20% leakage power reduction compared to coarse-grained ASV, while maintain about the same timing yield.

Original languageEnglish (US)
Title of host publication2016 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781450344661
DOIs
StatePublished - Nov 7 2016
Event35th IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2016 - Austin, United States
Duration: Nov 7 2016Nov 10 2016

Publication series

NameIEEE/ACM International Conference on Computer-Aided Design, Digest of Technical Papers, ICCAD
Volume07-10-November-2016
ISSN (Print)1092-3152

Other

Other35th IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2016
CountryUnited States
CityAustin
Period11/7/1611/10/16

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