The Community for Technology Leaders
Asia and South Pacific Design Automation Conference (2007)
Yokohama
Jan. 23, 2007 to Jan. 26, 2007
ISBN: 1-4244-0629-3
pp: 547-552
Mongkol Ekpanyapong , Intel Corporation, Folsom, California, USA. mongkol.ekpanyapong@intel.com
Xin Zhao , Georgia Institute of Technology, Atlanta, Georgia, USA. xzhao@ece.gatech.edu
Sung Kyu Lim , Georgia Institute of Technology, Atlanta, Georgia, USA. limsk@ece.gatech.edu
ABSTRACT
In this paper we present the Statistical Retiming-based Timing Analysis (SRTA) algorithm. The goal is to compute the timing slack distribution for the nodes in the timing graph and identify the statistically critical paths under retiming, which are the paths with a high probability of becoming timing-critical after retiming. SRTA enables the designers to perform circuit optimization on these paths to reduce the probability of them becoming timing bottleneck if the circuit is retimed as a post-process. We provide a comparison among static timing analysis (= STA), statistical timing analysis (= SSTA), retiming-based timing analysis (= RTA), and our statistical retiming-based timing analysis (SRTA). Our results show that the placement optimization based on SRTA achieves the best performance results.
INDEX TERMS
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CITATION

S. K. Lim, M. Ekpanyapong and X. Zhao, "An Efficient Computation of Statistically Critical Sequential Paths Under Retiming," 2007 Asia and South Pacific Design Automation Conference(ASP-DAC), Yokohama, 2007, pp. 547-552.
doi:10.1109/ASPDAC.2007.358043
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