Title: Dragon2000: standard-cell placement tool for large industry circuits
Abstract:In this paper, we develop a new standard cell placement tool, Dragon2000, to solve large scale placement problem effectively. A top-down hierarchical approach is used in Dragon2000. State-of-the-art p...In this paper, we develop a new standard cell placement tool, Dragon2000, to solve large scale placement problem effectively. A top-down hierarchical approach is used in Dragon2000. State-of-the-art partitioning tools are tightly integrated with wirelength minimization techniques to achieve superior performance. We argue that net-cut minimization is a good and important shortcut to solve the large scale placement problem. Experimental results show that minimizing net-cut is more important than greedily obtain a wirelength optimal placement at intermediate hierarchical levels. We run Dragon2000 on recently released large benchmark suite ISPD98 as well as MCNC circuits. For circuits which have more than 100 k cells, comparing to iToolsl.4.0, Dragon2000 can produce slightly better placement results (1.4%) while spending much less amount of time (2/spl times/ speedup). This is also the first published placement result on the publicly available large industrial circuits.Read More
Publication Year: 2000
Publication Date: 2000-11-05
Language: en
Type: article
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Cited By Count: 266
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