Efficient second-order iterative methods for IR drop analysis in power grid

Yu Zhong, Martin D F Wong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Due to the extremely large sizes of power grids, IR drop analysis has become a computationally challenging problem both in terms of runtime and memory usage. It has been shown in [5] that first-order iterative algorithms based on node-by-node and row-by-row traversals of the power grid have both accuracy and runtime advantages over the well-known Random-Walk method. In this paper, we propose second-order iterative algorithms that can significantly reduce the runtime. The new algorithms are extremely fast, and we prove that they guarantee converge to the exact solutions. Experimental results show that our algorithms outperform the Random-Walk algorithm in [2] and algorithms in [5]. For a 25-million node problem, while the Random-Walk algorithm takes 2 days with maximum error of 6.1 mV, the fastest algorithm in [5] takes 50 minutes, and our second-order row-based algorithm takes 32 minutes to get an exact solution. Moreover, we can get a solution with maximum error 2 mV in 10 minutes.

Original languageEnglish (US)
Title of host publicationProceedings of the ASP-DAC 2007 - Asia and South Pacific Design Automation Conference 2007
Pages768-773
Number of pages6
DOIs
StatePublished - Dec 1 2007
EventASP-DAC 2007 - Asia and South Pacific Design Automation Conference 2007 - Yokohama, Japan
Duration: Jan 23 2007Jan 27 2007

Publication series

NameProceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC

Other

OtherASP-DAC 2007 - Asia and South Pacific Design Automation Conference 2007
CountryJapan
CityYokohama
Period1/23/071/27/07

ASJC Scopus subject areas

  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design
  • Electrical and Electronic Engineering

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