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Evaluation of an Adaptive Dynamic Voltage Scaling Scheme for Hard Real-Time Applications

机译:用于硬实时应用的自适应动态电压缩放方案的评估

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In this paper we briefly describe the implementation method for an Adaptive Dynamic Voltage Scaling algorithm which supports a finite number of clock frequencies we then evaluate its performance and finally profile its implementation complexity on a fixed point DSP. The proposed algorithm is an intra-task DVS scheme that calculates the voltage-frequency profile based on the past execution history of the task. Using the Adaptive Multi-Rate speech encoder as an example of a task we show that the overhead imposed by the extra complexity of the algorithm is less than 1 % of the speech encoder and gives a power saving of over 15%. We finally conclude the complexity of calculating the voltage-frequency profile is not a limiting factor, if applied to a sufficiently complicated task.
机译:在本文中,我们简要描述了一种用于自适应动态电压缩放算法的实现方法,该算法支持有限数量的时钟频率,然后我们在固定点DSP上评估其性能并最终配置其实现复杂性。 所提出的算法是基于任务的过去的执行历史来计算电压频率分布的任务中的任务中的DVS方案。 使用自适应多速率语音编码器作为任务的示例,我们显示算法额外复杂性强加的开销小于语音编码器的1%,并提供超过15%的省电。 如果应用于足够复杂的任务,我们最终结束了计算电压频率曲线的复杂性不是限制因子。

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