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Intra-task Scenario-aware Voltage Scheduling

Domenii publicaţii > Ştiinţe informatice + Tipuri publicaţii > Articol în volumul unei conferinţe

Autori: S.V. Gheorghita, T.Basten, H. Corporaal

Editorial: ACM Press, New York, NY, USA, Proceedings of the International Conference on Compilers, Architecture, and Synthesis for Embedded Systems (CASES), p.177-184, 2005.


Modern embedded applications usually have real-time constraints
and they have requirements for low energy consumption. At system
level, intra-task dynamic voltage scaling (DVS) is one of the most
effective techniques for energy reduction. It changes the processor’s
supply voltage and clock frequency to the lowest level that still
allows the real-time constraints to be met. In this paper, we present
how intra-task scenarios, which capture correlations between different
parts of the application, can be applied on top of existing
DVS techniques, making them more effective. Furthermore, we
extend our method for automatic discovery of scenarios and adapt
it to the DVS requirements. We show that, by augmenting an existing
DVS method with scenarios, the average energy consumption
of two real-life benchmarks is reduced with 14% to 52%.

Cuvinte cheie: WCET, Dynamic Voltage Scheduling, Real-Time, Scenarios