Thermal-aware floorplanning for task migration enabled active sub-threshold leakage reduction

Hushrav D. Mogal, Kia Bazargan

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

9 Scopus citations

Abstract

This paper presents a new approach to active sub-threshold leakage reduction using task migration. The main idea is to replicate a hot module in a design so as to actively migrate its computation at regular intervals, reducing the on-chip temperature and thereby the sub-threshold leakage. We observe that choosing which blocks to migrate and their placement in a floorplan is a chicken-and-egg problem. To solve this, we propose a two step floorplanning methodology, wherein, given a base floorplan, we first choose the modules to replicate and then effectively utilize the deadspaces in it by exploiting the lateral conduction of heat in the floorplan to place a module's replica. With an optimized floorplan, using task migration we obtain an average savings of 29% in the active sub-threshold leakage at the expense of about 6% additional area.

Original languageEnglish (US)
Title of host publication2008 IEEE/ACM International Conference on Computer-Aided Design Digest of Technical Papers, ICCAD 2008
Pages302-305
Number of pages4
DOIs
StatePublished - Dec 26 2008
Event2008 International Conference on Computer-Aided Design, ICCAD - San Jose, CA, United States
Duration: Nov 10 2008Nov 13 2008

Publication series

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

Other

Other2008 International Conference on Computer-Aided Design, ICCAD
CountryUnited States
CitySan Jose, CA
Period11/10/0811/13/08

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