Dynamic Channel Routing Algorithm Based on Minimum Spanning Tree
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Dynamic Channel Routing Algorithm Based on Minimum Spanning Tree
基于最小生成树的动态通道布线算法
Issue 2, Pages: 120-124(2008)
作者机构:
西北工业大学计算机学院
作者简介:
基金信息:
DOI:
CLC:
Published:2008
稿件说明:
移动端阅览
魏建军, 康继昌, 雷艳静, et al. Dynamic Channel Routing Algorithm Based on Minimum Spanning Tree[J]. 2008, (2): 120-124.
DOI:
魏建军, 康继昌, 雷艳静, et al. Dynamic Channel Routing Algorithm Based on Minimum Spanning Tree[J]. 2008, (2): 120-124.DOI:
Dynamic Channel Routing Algorithm Based on Minimum Spanning Tree
摘要
针对电子设计自动化中低的通道布线布通率
对影响布通率的因素进行了研究
分析了线网布线次序对通道布线结果的影响
比较了静态排序和动态排序的优缺点
基于最小生成树
提出了一种动态通道布线算法.在布线过程中
根据通道已布线状态
计算剩余线网加权后各自的最小生成树
优先选择受已布线线网影响最大的线网进行连接
避免连接点距离较远的线网对连接点距离较近的线网的约束.实验结果表明
对同一个布局
采用相同的布线规则
算法占有空间资源少
比商用软件在通道布线方面具有更高的布通率.
Abstract
Aiming at the low connection ratio of the channel routing in electronic design automation(EDA)
the influence factors are studied in detail.The routing order of the channel routing is analyzed and the characteristics of static and dynamic ordering are compared.On these bases
a minimum spanning tree(MST) based dynamic channel routing algorithm is proposed.In the routing process
the individual MST of the remaining wire nets is calculated according to the channel state. The wire net suffered most from the wire net that is routed recently is selected first to be connected to avoid the fact that the wire net with near nodes is restricted by the one with far nodes.The experiment shows that for the same layout
the MST based dynamic channel routing algorithm occupies less memory and possesses higher connection ratio than the commercial software in the channel routing under the same routing rules.
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references
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