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- W4245301828 abstract "We introduce in this paper a new problem of ECO timing optimization using spare-cell rewiring and present the first work for this problem. Spare-cell rewiring is a popular technique for incremental timing optimization and/or functional change after the placement stage. The spare-cell rewiring problem is very challenging because of its dynamic wiring cost nature for selecting a spare cell, while the existing related problems consider only static wiring cost. For the addressed problem, we present a framework of buffer insertion and gate sizing to handle it. In this framework, we present a dynamic programming algorithm considering the dynamic cost, called dynamic cost programming (DCP), for the ECO timing optimization with spare cells. Without loss of solution optimality, we further present an effective pruning method by selecting spare cells only inside an essential bounding polygon to reduce the solution space. The whole framework is integrated into a commercial design flow. Experimental results based on five industry benchmarks show that our method is very effective and efficient in fixing the timing violations of ECO paths." @default.
- W4245301828 created "2022-05-12" @default.
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- W4245301828 date "2007-11-01" @default.
- W4245301828 modified "2023-10-14" @default.
- W4245301828 title "ECO timing optimization using spare cells" @default.
- W4245301828 doi "https://doi.org/10.1109/iccad.2007.4397319" @default.
- W4245301828 hasPublicationYear "2007" @default.
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