Applying Idealised DVFS Algorithms to Thermally Constrained DPM

Modern real-time embedded systems have increasingly penetrated our daily life and are also often constrained in terms of temperature and energy. In this paper, a thesis is defended that from real-time systems perspective, thermallyconstrained dynamic power management approaches behave very similar to idealised dynamic voltage and frequency scaling. Hence, existing dynamic voltage and frequency scaling solutions proposed for periodic/sporadic task models can be applied to thermally constrained dynamic power management systems with moderate effort. A detailed discussion is presented that shows the similarities along with the distinctive elements between two approaches. Within the case study, the porting of a dynamic voltage and frequency scaling algorithm of the literature to thermally constrained dynamic power management system is demonstrated. The proof of concept and effectiveness of the proposed approach is shown with the help of extensive simulations performed by varying system-specific parameters across different dimensions. Applying Idealised DVFS Algorithms to Thermally Constrained DPM Muhammad Ali Awan Stefan M. Petters CISTER/INESC-TEC, ISEP, Polytechnic Institute of Porto, Portugal muaan,smp@isep.ipp. pt Abstract—Modern real-time embedded systems have increasingly penetrated our daily life and are also often constrained in terms of temperature and energy. In this paper, a thesis is defended that from real-time systems perspective, thermally constrained dynamic power management approaches behave very similar to idealised dynamic voltage and frequency scaling. Hence, existing dynamic voltage and frequency scaling solutions proposed for periodic/sporadic task models can be applied to thermally constrained dynamic power management systems with moderate effort. A detailed discussion is presented that shows the similarities along with the distinctive elements between two approaches. Within the case study, the porting of a dynamic voltage and frequency scaling algorithm of the literature to thermally constrained dynamic power management system is demonstrated. The proof of concept and effectiveness of the proposed approach is shown with the help of extensive simulations performed by varying system-specific parameters across different dimensions.Modern real-time embedded systems have increasingly penetrated our daily life and are also often constrained in terms of temperature and energy. In this paper, a thesis is defended that from real-time systems perspective, thermally constrained dynamic power management approaches behave very similar to idealised dynamic voltage and frequency scaling. Hence, existing dynamic voltage and frequency scaling solutions proposed for periodic/sporadic task models can be applied to thermally constrained dynamic power management systems with moderate effort. A detailed discussion is presented that shows the similarities along with the distinctive elements between two approaches. Within the case study, the porting of a dynamic voltage and frequency scaling algorithm of the literature to thermally constrained dynamic power management system is demonstrated. The proof of concept and effectiveness of the proposed approach is shown with the help of extensive simulations performed by varying system-specific parameters across different dimensions.