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An Improved AMG-based Method for Fast Power Grid Analysis

Published: 27 March 2006 Publication History

Abstract

The continuing VLSI technology scaling leads to increasingly significant power supply fluctuations, which need to be modeled accurately in circuit design and verification. Meanwhile, the huge size of power grid requires its analysis to be fast and highly scalable. Algebraic multigrid (AMG) has been recognized as a promising approach for fast power grid analysis. We propose several techniques to improve AMG-based power grid analysis: (1) dynamic reduction threshold, (2) weighted interpolation and (3) a new error smoothing scheme. Experimental results on power grid with up to 1.6 million nodes show that these techniques can improve accuracy by over 10 times compared to a reported industrial method while retaining the same fast speed.

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Cited By

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  • (2006)Fast decap allocation based on algebraic multigridProceedings of the 2006 IEEE/ACM international conference on Computer-aided design10.1145/1233501.1233525(107-111)Online publication date: 5-Nov-2006

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cover image ACM Conferences
ISQED '06: Proceedings of the 7th International Symposium on Quality Electronic Design
March 2006
787 pages
ISBN:0769525237

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IEEE Computer Society

United States

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Published: 27 March 2006

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  • (2006)Fast decap allocation based on algebraic multigridProceedings of the 2006 IEEE/ACM international conference on Computer-aided design10.1145/1233501.1233525(107-111)Online publication date: 5-Nov-2006

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