Corolla based circuit partitioning and resynthesis

  • Authors:
  • Sujit Dey;Franc Brglez;Gershon Kedem

  • Affiliations:
  • Department of Computer Science, Duke University, Durham, NC;Microelectronics Center of North Carolina, Research Triangle Park, NC;Department of Computer Science, Duke University, Durham, NC

  • Venue:
  • DAC '90 Proceedings of the 27th ACM/IEEE Design Automation Conference
  • Year:
  • 1991

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Abstract

This paper introduces a circuit partitioning method based on analysis of reconvergent fanout. We consider a DAG model for a circuit. We define a corolla as a set of overlapping reconvergent fanout regions. We partition the DAG into a set of non-overlapping corollas and use the corollas to resynthesize the circuit. We show that resynthesis of large benchmark circuits consistently reduces transistor pairs and layout area while improving delay and testability.