Congestion-driven codesign of power and signal networks

Haihua Su, Jiang Hu, Sachin S Sapatnekar, Sani R. Nassif

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

We present a global wire design methodology that simultaneously considers the performance needs for both signal lines and power grids under congestion considerations. An iterative procedure is employed in which the global routing is performed according to a congestion map that includes the resource utilization of the power grid, followed by a step in which the power grid is adjusted to relax the congestion in crowded regions. This adjustment is in the form of wire removal in noncritical regions, followed by a wire sizing step that overcomes the effects of wire removal. Experimental results show that the overall routability can be significantly improved while the power grid noise is maintained within the voltage droop constraint.

Original languageEnglish (US)
Pages (from-to)64-69
Number of pages6
JournalProceedings - Design Automation Conference
DOIs
StatePublished - Jan 1 2002

Keywords

  • Codesign
  • Power grid noise
  • Signal routing
  • Wire congestion

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