Title
Optimization of Overdrive Signoff in High-Performance and Low-Power ICs
Abstract
In modern system-on-chip implementations, multimode design is commonly used to achieve better circuit performance and power across voltage-scaled, “turbo” and other operating modes. To the best of our knowledge, there is no available systematic analysis or methodology for the selection of associated signoff modes for multimode circuit implementations. In this brief, we observe significant impacts of signoff mode selection on circuit area, power, and performance. For example, incorrect choice of signoff voltages for required overdrive frequencies can incur suboptimality in power or in area. Using the concept of mode dominance as a guideline, we propose a scalable, model-based adaptive search methodology to explore the design space for signoff mode selection. Our proposed methodology is duty cycle-aware in its minimization of lifetime energy. Results show that our proposed methodology provides % improvement in performance, for given , area and power constraints, compared with the traditional “signoff and scale” method. Further, the signoff modes determined by our methods result in ¡ overhead in power compared with the optimal signoff modes.
Year
DOI
Venue
2015
10.1109/TVLSI.2014.2339848
VLSI) Systems, IEEE Transactions  
Keywords
Field
DocType
design space exploration,frequency overdrive,multicorner multimode design,signoff optimization,optimization,space exploration,data mining,very large scale integration
Turbo,Signoff,Computer science,Voltage,Electronic engineering,Real-time computing,Minification,Multi-mode optical fiber,Very-large-scale integration,Distortion (music),Scalability
Journal
Volume
Issue
ISSN
PP
99
1063-8210
Citations 
PageRank 
References 
1
0.36
6
Authors
5
Name
Order
Citations
PageRank
Tuck-Boon Chan1998.96
Andrew B. Kahng27582859.06
jiajia li3495.55
Siddhartha Nath424015.01
bongil park510.36