Post-placement voltage island generation under performance requirement

Huaizhi Wu, I Min Liu, Martin D.F. Wong, Yusu Wang

Research output: Chapter in book/report/conference proceedingConference proceedingpeer-review

74 Citations (Scopus)


High power consumption not only leads to short battery life for handheld devices, but also causes on-chip thermal and reliability problems in general. As power consumption is proportional to the square of supply voltage, reducing supply voltage can significantly reduce power consumption. Multi-supply voltage (MSV) has previously been introduced to provide finer-grain power and performance trade-off. In this work we propose a methodology on top of a set of algorithms to exploit non-trivial voltage island boundaries for optimal power versus design cost trade-off under performance requirement. Our algorithms are efficient, robust and error-bounded, and can be flexibly tuned to optimize for various design objectives (e.g., minimal power within a given number of voltage islands, or minimal fragmentation in voltage islands within a given power bound) depending on the design requirement. Our experiment on real industry designs shows a ten-fold improvement of our method over current logical-boundary based industry approach.

Original languageEnglish
Title of host publicationProceedings of the 2005 International Conference on Computer-Aided Design
Place of PublicationUnited States
Number of pages8
Publication statusPublished - Nov 2005
EventIEEE/ACM International Conference on Computer-Aided Design, ICCAD 2005 - San Jose, United States
Duration: 6 Nov 200510 Nov 2005 (Conference proceedings)


ConferenceIEEE/ACM International Conference on Computer-Aided Design, ICCAD 2005
Country/TerritoryUnited States
CitySan Jose
Internet address

Scopus Subject Areas

  • Software
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design


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