Routability-driven placement and white space allocation

  title={Routability-driven placement and white space allocation},
  author={Chen Li and Min Xie and Cheng-Kok Koh and Jason Cong and Patrick H. Madden},
We present a two-stage congestion-driven placement flow. First, during each refinement stage of our multilevel global placement framework, we replace cells based on the wirelength weighted by congestion level to reduce the routing demands of congested regions. Second, after the global placement stage, we allocate appropriate amounts of white space into different regions of the chip according to a congestion map by shifting cut lines in a top-down fashion and apply a detailed placer to legalize… CONTINUE READING
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