Timing driven force directed placement with physical net constraints
Proceedings of the 2003 international symposium on Physical design
Force directed mongrel with physical net constraints
Proceedings of the 40th annual Design Automation Conference
Implementation and extensibility of an analytic placer
Proceedings of the 2004 international symposium on Physical design
Multi-Million Gate FPGA Physical Design Challenges
Proceedings of the 2003 IEEE/ACM international conference on Computer-aided design
Dragon2005: large-scale mixed-size placement tool
Proceedings of the 2005 international symposium on Physical design
Solving hard instances of floorplacement
Proceedings of the 2006 international symposium on Physical design
Dragon2006: blockage-aware congestion-controlling mixed-size placer
Proceedings of the 2006 international symposium on Physical design
Fast and robust quadratic placement combined with an exact linear net model
Proceedings of the 2006 IEEE/ACM international conference on Computer-aided design
Solving modern mixed-size placement instances
Integration, the VLSI Journal
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In this paper we study the correlation between wirelength and routability for standard-cell placement problem, under the modern place-and-route environment. We present a placement tool named Dragon (version 2.1), and show its ability to produce good quality placement for designs with high row utilization. Compared to an industrial placer and an academic state-of-the-art placer, Dragon can produce placement with better routability and shorter total wirelength. We describe many novel algorithmic details and implementation details of this placement tool. Ex-perimental results show that minimizing wirelength improves routabilityand layout quality.