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- W2767247349 abstract "With the exponential increase in power density and the relentless scaling of transistors in VLSI circuits over the past decades, modern high-performance processors fall into a predicament of high energy consumption and elevated chip temperature. Such increased energy consumption and chip temperature could induce significant economic, ecological, and technical problems. Thus, energy-efficient task scheduling with thermal consideration has become a pressing research issue in sustainable computing systems, especially for battery-powered real-time embedded systems with limited cooling techniques. This paper tackles the above challenge through scheduling tasks leveraging correlated optimizations at two different scales. Precisely, a two-level thermal-aware energy-efficient scheduling algorithm for real-time tasks on DVFS-enabled heterogeneous MPSoC systems is developed considering the constraints of task deadlines, task precedences, and chip peak temperature limit. At the processor level, a multi-processor model supporting dynamic voltage/frequency scaling is transformed to a virtual multi-processor model supporting only one fixed frequency level. At the core level, real-time tasks are assigned to individual cores of the virtual processor under the constraints of task precedence and peak temperature limit. Through nicely interleaving optimizations at both levels, high quality task scheduling solutions can be computed efficiently. Extensive simulations of synthetic real-time tasks and real-life benchmarks are performed to validate the proposed algorithm. Experimental results demonstrate the effectiveness of the proposed algorithm as compared to the benchmarking schemes." @default.
- W2767247349 created "2017-11-17" @default.
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- W2767247349 date "2018-01-01" @default.
- W2767247349 modified "2023-10-17" @default.
- W2767247349 title "Thermal-aware correlated two-level scheduling of real-time tasks with reduced processor energy on heterogeneous MPSoCs" @default.
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- W2767247349 doi "https://doi.org/10.1016/j.sysarc.2017.09.007" @default.
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