Faster optimal single-row placement with fixed ordering
DATE '00 Proceedings of the conference on Design, automation and test in Europe
Mongrel: hybrid techniques for standard cell placement
Proceedings of the 2000 IEEE/ACM international conference on Computer-aided design
Important placement considerations for modern VLSI chips
Proceedings of the 2003 international symposium on Physical design
Almost optimum placement legalization by minimum cost flow and dynamic programming
Proceedings of the 2004 international symposium on Physical design
Fractional Cut: Improved Recursive Bisection Placement
Proceedings of the 2003 IEEE/ACM international conference on Computer-aided design
Computational geometry based placement migration
ICCAD '05 Proceedings of the 2005 IEEE/ACM International conference on Computer-aided design
Abacus: fast legalization of standard cell circuits with minimal movement
Proceedings of the 2008 international symposium on Physical design
DPlace2.0: a stable and efficient analytical placement based on diffusion
Proceedings of the 2008 Asia and South Pacific Design Automation Conference
Diffusion-Based Placement Migration With Application on Legalization
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Progress and challenges in VLSI placement research
Proceedings of the International Conference on Computer-Aided Design
Optimization of placement solutions for routability
Proceedings of the 50th Annual Design Automation Conference
ICCAD-2013 CAD contest in placement finishing and benchmark suite
Proceedings of the International Conference on Computer-Aided Design
| Hi-index | 0.00 |
In this work, a hierarchical bin-based legalization approach, HiBinLegalizer, is developed to legalize standard cells with minimal movement. First, a chip is divided into several bins with equal size. Then, starting with the most crowed unlegalized bin, a merging procedure for bins is used to integrate bins into a cross-shape region or a square-shape region until the cell density in that region is less than a specific cell-density-threshold. After that, an efficient legalization method which simultaneously preserves the cell orders in each row and minimizes the weighted sum of movement distances is developed to legalize cells in that region to limit the movable scope. To improve the legalization quality, HiBinLegalizer refreshes the positions of legalized cells during legalization. The legalizing procedure is repeated until all cells are non-overlapped. Compared with the state-of-the-art method, Abacus, HiBinLegalizer can reduce the total movement of cells to be 48% in average and save the largest movement of cells to be 140% in average. Moreover, HiBinLegalizer can reduce the HPWL by 47% and obtain average 1.11x runtime speed up.