net weighting to reduce repeater counts during placement
We demonstrate how to use placement to ameliorate the predicted repeater explosion problem caused by poor interconnect scaling. We achieve repeater count reduction by dynamically modifying net weights in a context-sensitive manner during global placement and coarse legalization. Our scheme, which models layer assignment as well as valid inter-repeater distance ranges, can decrease the repeater counts significantly with minimal impact on wirelength.
net weighting repeater placement interconnect scaling buffering force-directed placement