FastRoute: An Efficient and High-Quality Global Router Pan, Min Xu, Yue Chu, Chris Chong-Nuen Zhang, Yanheng Chu, Chris Chong-Nuen
dc.contributor.department Electrical and Computer Engineering 2018-02-17T17:56:47.000 2020-06-30T02:02:00Z 2020-06-30T02:02:00Z Sun Jan 01 00:00:00 UTC 2012 2012-01-01
dc.description.abstract <p>Modern large-scale circuit designs have created great demand for fast and high-quality global routing algorithms to resolve the routing congestion at the global level. Rip-up and reroute scheme has been employed by the majority of academic and industrial global routers today, which iteratively resolve the congestion by recreating the routing path based on current congestion. This method is proved to be the most practical routing framework. However, the traditional iterative maze routing technique converges very slowly and easily gets stuck at local optimal solutions. In this work, we propose a very efficient and high-quality global router—FastRoute. FastRoute integrates several novel techniques: fast congestion-driven via-aware Steiner tree construction, 3-bend routing, virtual capacity adjustment, multisource multi-sink maze routing, and spiral layer assignment. These techniques not only address the routing congestion measured at the edges of global routing grids but also minimize the total wirelength and via usage, which is critical for subsequent detailed routing, yield, and manufacturability. Experimental results show that FastRoute is highly effective and efficient to solve ISPD07 and ISPD08 global routing benchmark suites. The results outperform recently published academic global routers in both routability and runtime. In particular, for ISPD07 and ISPD08 global routing benchmarks, FastRoute generates 12 congestion-free solutions out of 16 benchmarks with a speed significantly faster than other routers.</p>
dc.description.comments <p>This is an article from <em>VLSI Design</em> 2012 (2012): 608362, doi: <a href="" target="_blank">10.1155/2012/608362</a>. Posted with permission.</p>
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dc.identifier.articleid 1104
dc.identifier.contextkey 8736621
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dc.identifier.submissionpath ece_pubs/103
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 18:18:04 UTC 2022
dc.source.uri 10.1155/2012/608362
dc.subject.disciplines Electrical and Computer Engineering
dc.title FastRoute: An Efficient and High-Quality Global Router
dc.type article
dc.type.genre article
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