Stairway compaction using corner block list and its applications with rectilinear blocks

Authors:
Yuchun Ma;Xianlong Hong;Sheqin Dong;Yici Cai;Chung-Kuan Cheng;Jun Gu
Affiliations:
Tsinghua University, Beijing, China;Tsinghua University, Beijing, China;Tsinghua University, Beijing, China;Tsinghua University, Beijing, China;University of California, San Diego, La Jolla, CA;University of Hong Kong, Kowloon, Hong Kong, China
Venue:
ACM Transactions on Design Automation of Electronic Systems (TODAES)
Year:
2004

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Abstract

Corner Block List (CBL) was recently proposed as an efficient representation for MOSAIC packing of rectangles. Although the original method is really innovative, there still remains room for improvement for our purpose. This article proposes a compact algorithm for placement based on corner block list. By introducing the dummy blocks in CBL, our algorithm can intellectively employ dummy blocks in the packing to represent the placement including empty rooms, which corner block list cannot represent. Our algorithm can obtain the fast convergence to an optimal solution. Based on the compact approach, we propose a new way to handle arbitrary shaped rectilinear modules. The experimental results are demonstrated by some benchmark data and the performance shows effectiveness of the proposed method.