HiCAP:基于分层fsm的高效节能移动游戏动态集成CPU-GPU频率封顶调节器

Proceedings of the 2016 International Symposium on Low Power Electronics and Design Pub Date : 2016-08-08 DOI:10.1145/2934583.2934588

Jurn-Gyu Park, N. Dutt, Hoyeon Kim, Sung-Soo Lim

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引用次数: 11

摘要

当代移动平台使用软件调控器来实现基于异构CPU-GPU架构的高性能和能效，这些架构可以执行移动游戏和其他图形密集型应用程序。手机游戏通常表现出固有的行为动态，现有的调控策略无法有效地利用它来管理CPU/GPU DVFS策略。为了克服这个问题，我们提出了HiCAP:一种基于层次有限状态机(HFSM)的CPU-GPU调控器，它可以模拟移动游戏工作负载的动态行为，并应用一种合作的、动态的CPU-GPU频率上限策略来产生适应游戏固有动态的能源效率。我们在37个展示动态行为的手机游戏上的实验表明，我们的CAP动态调控策略取得了可观的能源效率收益，与现有的调控策略相比，每帧能量提高了18%，质量下降最小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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HiCAP: Hierarchical FSM-based Dynamic Integrated CPU-GPU Frequency Capping Governor for Energy-Efficient Mobile Gaming

Contemporary mobile platforms use software governors to achieve high performance with energy-efficiency for heterogeneous CPU-GPU based architectures that execute mobile games and other graphics-intensive applications. Mobile games typically exhibit inherent behavioral dynamism, which existing governor policies are unable to exploit effectively to manage CPU/GPU DVFS policies. To overcome this problem, we present HiCAP: a Hierarchical Finite State Machine (HFSM) based CPU-GPU governor that models the dynamic behavior of mobile gaming workloads, and applies a cooperative, dynamic CPU-GPU frequency-capping policy to yield energy efficiency adapting to the game's inherent dynamism. Our experiments on a large set of 37 mobile games exhibiting dynamic behavior show that our CAP dynamic governor policy achieved substantial energy efficiency gains of up to 18% improvement in energy-per-frame over existing governor policies, with minimal degradation in quality.

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Proceedings of the 2016 International Symposium on Low Power Electronics and Design

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