Total power optimization by simultaneous dual-Vt allocation and device sizing in high performance microprocessors

  • Authors:
  • Tanay Karnik;Yibin Ye;James Tschanz;Liqiong Wei;Steven Burns;Venkatesh Govindarajulu;Vivek De;Shekhar Borkar

  • Affiliations:
  • Intel Labs, Hillsboro, OR;Intel Labs, Hillsboro, OR;Intel Labs, Hillsboro, OR;Intel Labs, Hillsboro, OR;Intel Labs, Hillsboro, OR;Intel Labs, Hillsboro, OR;Intel Labs, Hillsboro, OR;Intel Labs, Hillsboro, OR

  • Venue:
  • Proceedings of the 39th annual Design Automation Conference
  • Year:
  • 2002

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Abstract

We describe various design automation solutions for design migration to a dual-Vt process technology. We include the results of a Lagrangian Relaxation based tool, iSTATS, and a heuristic iterative optimization flow. Joint dual-Vt allocation and sizing reduces total power by 10+% compared with Vt allocation alone, and by 25+% compared with pure sizing methods. The heuristic flow requires 5x larger computation runtime than iSTATS due to its iterative nature.