Hierarchical analysis of power distribution networks
Proceedings of the 37th Annual Design Automation Conference
Multigrid-like technique for power grid analysis
Proceedings of the 2001 IEEE/ACM international conference on Computer-aided design
RC-In RC-Out Model Order Reduction Accurate up to Second Order Moments
ICCD '01 Proceedings of the International Conference on Computer Design: VLSI in Computers & Processors
Electronic Circuit & System Simulation Methods (SRE)
Electronic Circuit & System Simulation Methods (SRE)
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In this paper, we propose a novel hierarchical analysis methodology to facilitate efficient chip-level power fluctuation analysis. With extreme efficiency and simplicity, our design methodology first builds time-varying multiport Norton equivalent circuits in a row-by-row or block-by-block based followed by global analysis on the integrated reduced models. After generating the Norton equivalent sources at external ports, we apply realizable model order reduction technologies to further reduce model. Since the elements of our reduced model are also RC devices, they are fully compatible with general circuit simulation engines. The experimental results demonstrate more than 4X speed up with the flat simulation while maintaining within 5% of accuracy.