A Control Theoretic Approach to Run-Time Energy Optimization of Pipelined Processing in MPSoCs

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Provided by: edaa
Topic: Hardware
Format: PDF
In this paper, the authors take a control-theoretic approach to feedback based Dynamic Voltage Scaling (DVS) in Multi Processor System on Chip (MPSoC) pipelined architectures. They present and discuss a novel feedback approach based on both linear and non-linear techniques aimed at controlling inter-processor queue occupancy. Theoretical analysis and experiments, carried out on a cycle accurate multiprocessor simulation platform, show that feedback based control reduces energy consumption with respect to standard local DVS policies and highlight that non-linear strategies allows a more flexible and robust implementation in presence of variable workload conditions.
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