Planar constrained terminals over-the-cell router

被引：1

作者：

Shew, PW ^{[1
]}

Hsiao, PY ^{[1
]}

机构：

[1] NATL CHIAO TUNG UNIV,DEPT COMP & INFORMAT SCI,HSINCHU 300,TAIWAN

来源：

IEE PROCEEDINGS-COMPUTERS AND DIGITAL TECHNIQUES | 1997年 / 144卷 / 02期

关键词：

over-the-cell routing; maximum weight independent chord set; circle graph; VLSI;

D O I：

10.1049/ip-cdt:19971157

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

The authors present a new routing model for over-the-cell channel routing. A graph theoretical algorithm is then proposed to solve the new problem, The algorithm has a complexity of O(nk(2)), where n is the number of nets and k is the number of columns in the channel. It achieved a routing area reduction of 71.5% for the PRIMARY 1 benchmark example from MCNC, using three-layer over-the-cell routing. To resolve a sub-problem, the authors also present an O(m nu) algorithm to find the maximum weight independent chord set in a circle graph with m chords incident to nu vertices, where two chords may share a common vertex.

引用

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页码：121 / 126

页数：6

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