An Incremental Floorplanner

  • Authors:
  • Jim Crenshaw;Majid Sarrafzadeh;Prithviraj Banerjee;Pradeep Prabhakaran

  • Affiliations:
  • -;-;-;-

  • Venue:
  • GLS '99 Proceedings of the Ninth Great Lakes Symposium on VLSI
  • Year:
  • 1999

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Abstract

One of the foremost problems in physical design for deep-submicron circuits is the need for estimates that depend on future decisions. Estimation of area, timing, and coupling are required..We propose a novel floorplanner, with a new wiring metric, which can be updated quickly in small increments. This provides tools with a way to influence the floorplan as they make changes without a large running time penalty. We provide experimental results that show the incremental approach to be generally 5 times faster than full floorplanning while maintaining good estimates.