In this paper we study the correlation between wirelength and routability for standard-cell placement problem, under the modern place-androute 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 produc...

This paper applied the fuzzy comprehensive evaluation (FCE) technique and analytic hierarchy process (AHP) procedure to evaluate the wastewater treatment for enterprises. Based on the characteristics of wastewater treatment for enterprises in Taihu basin, an evaluating index system was established for enterprise and analysis hierarchy process method was applied to determine index weight. Then t...

We propose a routability-driven analytical placer that aims at distributing pins evenly. This is accomplished by including a group of pin density constraints in its mathematical formulation. Moreover, for mixed-size circuits, we adopt a scaled smoothing method to cope with fixed macro blocks. As a result, we have fewer cells overlapping with fixed blocks after global placement, implying that th...