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Paper Abstract and Keywords
Presentation 2023-03-03 09:30
Global routing method imitating car path search
Yusuke Yamaguchi, Kunihiro Fujiyoshi (TUAT) VLD2022-100 HWS2022-71
Abstract (in Japanese) (See Japanese page) 
(in English) Routing in LSI layout design is divided into two stages: global routing and detailed routing. In global routing, a path with a short total wire length within capacity is determined. By the way, route search for cars finds a route with a short travel distance while avoiding traffic jams, so traffic jams can be alleviated by changing the route of a car running around a traffic jam. Since this is similar to global routing, we propose a method that only removes partial path that pass through congested edges, unlike ordinary rip up and reroute that removes the entire path. Then, a comparison experiment between the proposed method and the method using ordinary rip up and reroute is performed on 16 circuits. As a result, the total overflow was large in the four circuits where the total overflow was greater than 0. On the other hand, in the 12 circuits where the total overflow was 0, the total wire length was longer, but the computation time was the same or shorter.
Keyword (in Japanese) (See Japanese page) 
(in English) global routing / rip up and reroute / dynamic route guidance system / / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 402, VLD2022-100, pp. 143-148, March 2023.
Paper # VLD2022-100 
Date of Issue 2023-02-22 (VLD, HWS) 
ISSN Online edition: ISSN 2432-6380
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All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF VLD2022-100 HWS2022-71

Conference Information
Committee HWS VLD  
Conference Date 2023-03-01 - 2023-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To VLD 
Conference Code 2023-03-HWS-VLD 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Global routing method imitating car path search 
Sub Title (in English)  
Keyword(1) global routing  
Keyword(2) rip up and reroute  
Keyword(3) dynamic route guidance system  
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1st Author's Name Yusuke Yamaguchi  
1st Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
2nd Author's Name Kunihiro Fujiyoshi  
2nd Author's Affiliation Tokyo University of Agriculture and Technology (TUAT)
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Speaker Author-1 
Date Time 2023-03-03 09:30:00 
Presentation Time 25 minutes 
Registration for VLD 
Paper # VLD2022-100, HWS2022-71 
Volume (vol) vol.122 
Number (no) no.402(VLD), no.403(HWS) 
Page pp.143-148 
#Pages
Date of Issue 2023-02-22 (VLD, HWS) 


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