In this work, we describe a control theoretic approach to dynamic voltage/frequency scaling (DVFS) in a pipelined MPSoC architecture with soft real-time constraints, aimed at minimizing energy consumption with throughput guarantees. Theoretical analysis and experiments carried out on a cycle-accurate, energy-aware, and multiprocessor simulation platform are provided. We give a dynamic model of the system behavior which allows to synthesize linear and nonlinear feedback control schemes for the run-time adjustment of the core frequencies. We study the characteristics of the proposed techniques in both transient and steady-state conditions. Finally, we compare the proposed feedback approaches and local DVFS policies from an energy consumption viewpoint.

A control theoretic approach to energy-efficient pipelined computation in MPSoCs

ACQUAVIVA, ANDREA;BENINI, LUCA
2007

Abstract

In this work, we describe a control theoretic approach to dynamic voltage/frequency scaling (DVFS) in a pipelined MPSoC architecture with soft real-time constraints, aimed at minimizing energy consumption with throughput guarantees. Theoretical analysis and experiments carried out on a cycle-accurate, energy-aware, and multiprocessor simulation platform are provided. We give a dynamic model of the system behavior which allows to synthesize linear and nonlinear feedback control schemes for the run-time adjustment of the core frequencies. We study the characteristics of the proposed techniques in both transient and steady-state conditions. Finally, we compare the proposed feedback approaches and local DVFS policies from an energy consumption viewpoint.
S. Carta; A. Alimonda; A. Pisano; A. Acquaviva; L. Benini
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/47176
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