Behavioral Synthesis of Data-Dominated Circuits for Minimal Energy Implementation

Authors:
Xiaoyong Tang;Tianyi Jiang;Alex Jones;Prith Banerjee
Affiliations:
Northwestern University;Northwestern University;University of Pittsburgh;Northwestern University
Venue:
VLSID '05 Proceedings of the 18th International Conference on VLSI Design held jointly with 4th International Conference on Embedded Systems Design
Year:
2005

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Abstract

This paper presents a power estimation and optimization approach in the early stage of behavioral synthesis for unscheduled data-dominated circuits. A methodology for estimating the power consumption of every module in the system is developed using an automatic construction of a novel switching table and the power table. An integer linear programming model is presented to reduce the energy consumption of the circuit through concurrent module selection, binding, and scheduling for a non-scheduled data path. Experimental results of six data-dominated benchmarks show that our technique achieves an average of 29.8% energy savings compared to a traditional area optimal synthesis algorithm where energy is not considered. Additionally, this approach consumes on the average 24.0% and 20.3% less energy compared to two other power-oriented optimization strategies respectively.