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Performance boosting of modern computing systems is constrained by the chip/circuit power dissipation. Dynamic voltage scaling (DVS) has been applied for reducing the energy consumption by dynamically changing the supply voltage. One can optimistically apply greedy online DVS scheduling algorithms by considering only the events that have arrived in the system. However, this might require a speed that...
Dynamic Voltage Scaling (DVS) has been widely used for decreasing the dynamic power dissipation of processors. For real-time systems, DVS techniques have been developed that permit to meet the timing constraints of multiple real-time tasks and at the same time reduce the overall dynamic energy consumption. Known methods for static priority DVS scheduling are, however, either restricted to simple periodic/sporadic...
Dynamic voltage scaling (DVS) has been widely adopted to reduce the energy consumption resulting from the dynamic power of modern processors. However, while the leakage power resulting from the leakage current becomes significant, how to aggregate the idle time to turn processors to the sleep or dormant modes is crucial in reducing the overall energy consumption. Moreover, for systems with non-DVS...
Thermal constraints have limited the performance improvement of modern computing systems in recent years. As a system could fail if the peak temperature exceeds its thermal constraint, overheating should be avoided while designing a system. Moreover, higher temperature also leads to higher leakage power consumption. This paper explores dynamic thermal management to minimize the energy consumption...
Many computing systems have adopted the dynamic voltage scaling (DVS) technique to reduce energy consumption by slowing down operation speed. However, The longer a job executes, the more energy in leakage current the processor consumes for the job. To reduce the power/energy consumption from the leakage current, a processor can enter the dormant mode. Existing research results for leakage-aware DVS...
While there is a tradeoff between the energy consumption and the satisfaction of task deadlines, the management of the processor temperature is of paramount important to the survival of the processor and the reduction of packing cost. This paper explores the scheduling of periodic real-time tasks with temperature-aware considerations in a uniprocessor or homogeneous multiprocessor environment. By...
Multiple processing elements are often adopted in the current designs of embedded systems. Such configurations impose challenges on hardware/software co-designs with energy-efficient considerations. This paper targets energy-efficient real-time task scheduling of such popular configurations, in which systems are equipped with a DVS processor and a non-DVS processing element (PE). We consider task...
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