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Timing optimization plays an essential role in very large scale integration (VLSI) design closure. Traditional placement algorithms seldom consider the complex timing constraints and thus may lead to inferior timing results. In this paper, we propose a timing-aware virtual path optimization strategy for VLSI global placement. The proposed algorithm uses a novel virtual net method and simultaneously optimizes the timing and wirelength. We evaluate our results on the ICCAD 2015 contest benchmarks and industrial benchmarks. Compared with the widely used net-weighting method, experimental results show that our algorithm achieves not only a 11.2% improvement in worst negative slack but also a 15.9% in total negative slack. © 2022 IEEE.
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Year: 2022
Language: English
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 1
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