PROUD: A Sea-Of-Gates Placement Algorithm

  • Authors:
  • Ren-Song Tsay;Ernest S. Kuh;Chi-Ping Hsu

  • Affiliations:
  • -;-;-

  • Venue:
  • IEEE Design & Test
  • Year:
  • 1988

Quantified Score

Hi-index 0.00

Visualization

Abstract

An efficient method is proposed for placing modules in large and highly complex sea-of-gates chips that include preplaced I/O pads and macrocells. PROUD repeatedly solves sparse linear equations. A resistive network analogy of the placement problem and convexity of the objective function are key concepts in this algorithm. The algorithm was tested on nine real circuits. For a triple-metal-layer, 100000-gate sea-of-gate design with 26000 instances, the constructive phase took 50 minutes on a VAX 8650 and yielded excellent results for total wire length. Extensions of the method are considered.