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The common objective of very large-scale integration (VLSI) placement problem is to minimize the total wirelength, which is calculated by the total half-perimeter wirelength (HPWL). Since the HPWL is not differentiable, various differentiable wirelength approximation functions have been proposed in analytical placement methods. In this paper, we reformulate the HPWL as an $l_{1}$ -norm model of the...
By ignoring some cell overlaps, the common objective of the very large scale integration (VLSI) global placement problem is to minimize its total half-perimeter wirelength (HP-WL). As the HPWL is not differentiable, the log-sum-exponential (LSE) wirelength model, one of the most powerful differentiable wirelength approximation functions, has been adopted in several nonlinear programming-based placers...
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