Abstract
Consider the gradually more and more complexproblems of single row routing, channel routing and switchbox routing on the one hand, and the gradually less and less restrictivemodels (1-layer, Manhattan, unconstrained 2-layer, multilayer) on the other hand. The single row routing problems can always be solved in the Manhattan model, and the channel routing problem can always be solved in the unconstrained 2-layer model, in fact, both in linear time. In this paper, we show that the switchbox routing problem is solvable in the multilayer model, also in linear time.
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