학술논문

Total power optimization by simultaneous dual-Vt allocation and device sizing in high performance microprocessors
Document Type
Conference
Source
Proceedings 2002 Design Automation Conference (IEEE Cat. No.02CH37324) Design automation conference Design Automation Conference, 2002. Proceedings. 39th. :486-491 2002
Subject
Computing and Processing
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Design optimization
CMOS logic circuits
Microprocessors
Delay
Design automation
Lagrangian functions
Iterative algorithms
Energy consumption
Threshold voltage
Permission
Language
ISSN
0738-100X
Abstract
We describe various design automation solutions for design migration to a dual-Vt process technology. We include the results of a Lagrangian relaxation based tool, iSTATS, and a heuristic iterative optimization flow. Joint dual-Vt allocation and sizing reduces total power by 10+% compared with Vt allocation alone, and by 25+% compared with pure sizing methods. The heuristic flow requires 5/spl times/ larger computation runtime than iSTATS due to its iterative nature.