NDLI: A simple yet effective genetic approach for the orientation assignment on cell-based layout

Content Provider	IEEE Xplore Digital Library
Author	Jin-Tai Yan
Copyright Year	1995
Description	Author affiliation: Dept. of Comput. & Inf. Sci., Nat. Chiao Tung Univ., Hsinchu, Taiwan (Jin-Tai Yan)
Abstract	In this paper, a genetic approach for the orientation assignment is proposed to minimize total wire length on one cell-based layout. In general, the placement phase in physical design places a set of cells with minimum area or total wire length. It is assumed that all the pins on the cells have been assigned on the fixed positions after the placement phase. In order to reduce the routing area, another advanced improvement will be done to minimize total wire length by assigning the orientation states of cells. In the proposed genetic approach, for any fixed layout, we represent each cell on the layout by a vertical orientation bit and a horizontal orientation bit. Furthermore, the genetic approach assigns the feasible vertical and horizontal states to minimize total wire length. Finally, the proposed approach has been implemented and several benchmarks tested for the orientation assignment. The experimental results show that the proposed genetic approach is effective on these tested benchmarks.
Starting Page	33
Ending Page	36
File Size	456383
Page Count	4
File Format	PDF
ISBN	0818672285
ISSN	10639667
DOI	10.1109/ICVD.1996.489450
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-01-03
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Genetics Wire Routing Pins Cost function Simulated annealing Information science Benchmark testing Computational modeling Computer networks
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Hardware and Architecture

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