Gap-Aware Candidate Reranking for Multi-Strategy VLSI Floorplanning: A Metric-Calibration Study on the FloorSet Benchmark
Multi-strategy very-large-scale integration (VLSI) floorplanners combine heterogeneous candidate generators (shelf packing, sequence-pair simulated annealing, analytical placement, and learned neural priors) and select among them using an internal ranking cost. In such pipelines, the choice of that ranking cost is an i...