Simultaneous Reconnection Surgery Technique of Routing with Machine Learning-based Acceleration

In global routing, both timing and routability are critical criteria to measure the performance of a design. However, these two objectives naturally conflict with each other during routing. In this paper, we propose reconnection approaches to fix timing. We first formulated a quadratic program (QP), which adjusts routing topologies of all the nets by only reconnecting critical sinks and takes cong...