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Content Provider | IEEE Xplore Digital Library |
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Author | Shenghua Liu Xianlong Hong Tong Jing Jingyu Xu |
Copyright Year | 2006 |
Description | Author affiliation: Dept. of Comput. Sci. & Technol., Tsinghua Univ., Beijing (Shenghua Liu; Xianlong Hong; Tong Jing; Jingyu Xu) |
Abstract | A fast routability estimator, namely FREe, is proposed in this paper. With the fast feedback on congestion, FREe serves incremental placement or guides routing to shorten the physical design time. FREe firstly extends an existing combinatorial model with the extended bounding box for flat tow-pin nets/sections to pre-estimate congestion probabilistically. Then, it routes all nets guided by the pre-estimation to get more exact congestion estimation, which is fast since it does not include any iteration/optimization as a router does. The idea of FREe is net-order-independent. FREe can get a uniform usage of routing resources by probability. The experimental results show that FREe can give more detailed congestion information in a short running time. Compared FREe with a recent router SSTT, we find that FREe has a good congestion correlation with SSTT, but FREe is more objective |
Sponsorship | IEEE Circuits and Syst. Soc. HKUST UESTC City Univ. of Hong Kong |
Starting Page | 2454 |
Ending Page | 2458 |
File Size | 6004054 |
Page Count | 5 |
File Format | |
ISBN | 0780395840 |
DOI | 10.1109/ICCCAS.2006.285172 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2006-06-25 |
Publisher Place | China |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Computer science Algorithm design and analysis Educational programs Feedback Wires Ultra large scale integration Very large scale integration Routing Pins Performance analysis |
Content Type | Text |
Resource Type | Article |
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