VLSI Design

VLSI Design / 1996 / Article

Open Access

Volume 5 |Article ID 096136 | https://doi.org/10.1155/1996/96136

Kuo-En Chang, Sei-Wang Chen, "An Efficient and Fast Algorithm for Routing Over the Cells", VLSI Design, vol. 5, Article ID 096136, 10 pages, 1996. https://doi.org/10.1155/1996/96136

An Efficient and Fast Algorithm for Routing Over the Cells

Received07 Aug 1992
Accepted20 Aug 1994

Abstract

A linear time algorithm for routing over the cells is presented. The algorithm tries to reduce maximum channel density by routing some connections over the cells. The algorithm first defines a new scheme for channel representation and formulates the problem based on an intersection graph derived from the new scheme. Then, a feasible independent set of the intersection graph is found for routing some subnets over the cells. The algorithm is implemented and evaluated with several well known benchmarks. In comparison with previous research, our results are satisfactory, and the algorithm takes substantially less CPU time than those of previous works. For Deutsch's difficult example, the previous algorithms take about 29.25 seconds on an average but our new algorithm needs only 5.6 seconds.

Copyright © 1996 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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