Timing influenced general-cell genetic floorplanner

Abstract

In this paper we present a timing-influenced floorplanner for general cell IC design. The floorplanner works in two phases. In the first phase we restrict the modules to be rigid and the floorplan to be slicing. The second phase of floorplanner allows modification to the aspect ratios of individual modules to further reduce the area of the overall bounding box. The first phase is implemented using genetic algorithm while in the second phase we adopt a constraint graph based approach. Experimental results are also presented.