Presentation 1997/3/7
A Look-Ahead Line Search Routing Algorithm utilizing the Global Routes as a Line-Search Direction
Hiroaki Oka, Takuya Nakamura, Yoichi Shiraishi,
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Abstract(in English) A look-ahead line search routing algorithm is one of the efficient methods for solving the high-packing density routing problems. This algorithm guarantees the 100% routeability by using the procedures consisting of the basic line-search process with a look-ahead, the re-search prohibition process and the back-tracking process. This paper suggests a new routing algorithm which tries to minimize the total processing time by minimizing the use of the latter two processes. The fundamenttal idea is to improve the routeability of the basic line-search process with a look-ahead by utilizing the global routes. In particular, this routeability improvement is realized by firstly setting a direction within a charnnel which is a part of a global route, and by secondly utilizing this direction for a look-ahead procedure. The experimental results show that the suggested routing algorithm improves the routeability of the basic line-search process and the total processing time compared with the conventional one.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) global routing / look-ahead line search / channel / algorithm
Paper # VLD96-105,ICD96-215
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Conference Date 1997/3/7(1days)
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Registration To Integrated Circuits and Devices (ICD)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Look-Ahead Line Search Routing Algorithm utilizing the Global Routes as a Line-Search Direction
Sub Title (in English)
Keyword(1) global routing
Keyword(2) look-ahead line search
Keyword(3) channel
Keyword(4) algorithm
1st Author's Name Hiroaki Oka
1st Author's Affiliation Department of Computer Science, Gunma University()
2nd Author's Name Takuya Nakamura
2nd Author's Affiliation Department of Computer Science, Gunma University
3rd Author's Name Yoichi Shiraishi
3rd Author's Affiliation Department of Computer Science, Gunma University
Date 1997/3/7
Paper # VLD96-105,ICD96-215
Volume (vol) vol.96
Number (no) 558
Page pp.pp.-
#Pages 8
Date of Issue