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1. An Augmented Lagrangian Method for VLSI Global Placement Optimization | |||
Li Weiguo,Chen Jianli,Zhu Wenxing | |||
Computer Science and Technology 27 December 2012 | |||
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Abstract:Ignoring some cell overlaps, global placement computes the bestposition for each cell to minimize some cost metric (e.g., totalwirelength, density overflow). It is a crucial step in very largescale integration(VLSI) physical design, since it affectsroutability, performance, and power consumption of a circuit. Inthis paper, we propose an Augmented Lagrangian method to solve theVLSI global placement. In this method, a cautiousdynamic density weight increasing strategy is used to balance thewirelength and density constraint. We incorporated our method intoNTUplace3's global placement framework,and tested it on the IBM mixed-size benchmark circuits.Experimental results show that it obtains high-quality results in areasonable running time. | |||
TO cite this article:Li Weiguo,Chen Jianli,Zhu Wenxing. An Augmented Lagrangian Method for VLSI Global Placement Optimization[OL].[27 December 2012] http://en.paper.edu.cn/en_releasepaper/content/4509484 |
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