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2010
IEEE

Minimizing Multi-resource Energy for Real-Time Systems with Discrete Operation Modes

9 years 11 days ago
Minimizing Multi-resource Energy for Real-Time Systems with Discrete Operation Modes
Energy conservation is an important issue in the design of embedded systems. Dynamic Voltage Scaling (DVS) and Dynamic Power Management (DPM) are two widely used techniques for saving energy in such systems. In this paper, we address the problem of minimizing multi-resource energy consumption concerning both CPU and devices. A system is assumed to contain a fixed number of real-time tasks scheduled to run on a DVS-enabled processor, and a fixed number of offchip devices used by the tasks during their executions. We will study the non-trivial time and energy overhead of device state transitions between active and sleep states. Our goal is to find optimal schedules providing not only the execution order and CPU frequencies of tasks, but also the time points for device state transitions. We adopt the frame-based real-time task model, and develop optimization algorithms based on 01 Integer Non-Linear Programming (0-1 INLP) for different system configurations. Simulation results indicate th...
Fanxin Kong, Yiqun Wang, Qingxu Deng, Wang Yi
Added 09 Nov 2010
Updated 09 Nov 2010
Type Conference
Year 2010
Where ECRTS
Authors Fanxin Kong, Yiqun Wang, Qingxu Deng, Wang Yi
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