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Kernighan-Lin Algorithm

Kernighan-Lin Algorithm. Perform single KL pass on the following circuit: KL needs undirected graph (clique-based weighting). First Swap. Second Swap. Third Swap. Fourth Swap. Last swap does not require gain computation. Summary. Cutsize reduced from 5 to 3

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Kernighan-Lin Algorithm

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  1. Kernighan-Lin Algorithm • Perform single KL pass on the following circuit: • KL needs undirected graph (clique-based weighting) Practical Problems in VLSI Physical Design

  2. First Swap Practical Problems in VLSI Physical Design

  3. Second Swap Practical Problems in VLSI Physical Design

  4. Third Swap Practical Problems in VLSI Physical Design

  5. Fourth Swap • Last swap does not require gain computation Practical Problems in VLSI Physical Design

  6. Summary • Cutsize reduced from 5 to 3 • Two best solutions found (solutions are always area-balanced) Practical Problems in VLSI Physical Design

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