Multi-stage Detailed Placement Algorithm for Large-Scale Mixed-Mode Layout Design
- Cite this paper as:
- Luo L., Zhou Q., Hong X., Zhou H. (2005) Multi-stage Detailed Placement Algorithm for Large-Scale Mixed-Mode Layout Design. In: Gervasi O. et al. (eds) Computational Science and Its Applications – ICCSA 2005. ICCSA 2005. Lecture Notes in Computer Science, vol 3483. Springer, Berlin, Heidelberg
Quadratic/Analytical placement methods have been widely used in the latest IC design process. This kind of placement needs a powerful detailed placement method for large-scale mixed macro and standard cell placement. An efficient and effective multi- stage iterative detailed placement (MSIP) algorithm is proposed in this paper. It combines a better initial placement based on combinatorial optimization method with a deterministic local search for post optimization. Various strategies are used for saving computation time. Experimental results show that it can get an average of 22% wire length improvement comparing to PAFLO  in comparable runtime.
Unable to display preview. Download preview PDF.