Power-Optimal Simultaneous Buffer Insertion/Sizing and Wire Sizing

  • Authors:
  • Ruiming Li;Dian Zhou;Jin Liu;Xuan Zeng

  • Affiliations:
  • The University of Texas at Dallas;The University of Texas at Dallas;The University of Texas at Dallas;Fudan University, China

  • Venue:
  • Proceedings of the 2003 IEEE/ACM international conference on Computer-aided design
  • Year:
  • 2003

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Abstract

This paper studies the problems of minimizing power dissipationof an interconnect wire by simultaneously considering buffer insertion/sizing and wire sizing (BISWS). We consider two cases, namely minimizing power dissipation with optimal delay constraints, and minimizing power dissipation with a given delay penalty.We derive closed form optimal solutions for both cases. Theseclosed form solutions can be used to efficiently estimate the powerdissipation in the early stages of the VLSI designs. We observe thatthe power dissipation can be much different even with the sameoptimal delay.