高技术通讯2017,Vol.27Issue(7):587-595,9.DOI:10.3772/j.issn.1002-0470.2017.07.001
片上波动影响下的Mesh结构时钟系统的性能分析方法
Performance analysis of Mesh-structured clock systems under on-chip variation
摘要
Abstract
Considering the impact of on-chip variation on Mesh-structured clock systems, a performance analysis method for Mesh-structured clock systems based on statistical theories was proposed.The main idea of this method is that when the real analytical function is too hard to be constructed, using statistical analysis techniques to fit the func-tion.The study was conducted from two aspects: How to fit the probability distribution of clock skew; How to fit the impact of clock paths' time delay of the pre-driving part on clock skew.The experiments prove that the proba-bility distribution of clock skew can be fitted by normal distribution, while the relationship between time delay of the pre-driving part' s clock paths and the clock skew can be fitted by using the multi-variable linear regression model.Therefore, this set of fitting approaches make it possible for designers to estimate the rationality of the clock uncertainty constraint through the cumulative probability distribution function of normal distribution and to refine the pre-driving part according to the multi-variable linear regression model at the later stage of design.关键词
时钟Mesh/正态分布/多元线性回归/片上波动Key words
clock Mesh/normal distribution/multi-variable linear regression/on-chip variation引用本文复制引用
王昊,杨梁..片上波动影响下的Mesh结构时钟系统的性能分析方法[J].高技术通讯,2017,27(7):587-595,9.基金项目
国家"核高基"科技重大专项(2009Z01028-002-003,2009Z01029-001-003,2010ZX01036-001-002,2012ZX01029-001-002,2014ZX01020201,2014ZX01030101),国家自然科学基金(61521092,61133004,61173001,61232009,61222204,61432016)和863计划(2013AA014301)资助项目. (2009Z01028-002-003,2009Z01029-001-003,2010ZX01036-001-002,2012ZX01029-001-002,2014ZX01020201,2014ZX01030101)