SpinSmart: Exploring Optimal Server Fan Speeds to Improve Overall System Energy Consumption

SpinSmart: Exploring Optimal Server Fan Speeds to Improve Overall System Energy Consumption
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SpinSmart:探索最佳服务器风扇速度以改善整体系统能耗

DOI:
10.1145/3396851.3402655
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发表时间:
2020
期刊:
e-Energy '20: Proceedings of the Eleventh ACM International Conference on Future Energy Systems
影响因子:
--
通讯作者:
Subramaniam, Suresh
Subramaniam, Suresh
中科院分区:
--
文献类型:
--
作者:
Tian, Min;Vishwanath, Arun;Venkataramani, Guru;Subramaniam, Suresh

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数据中心的成本在过去几年中急剧上升。今天,它占美国能源消费总量的3%左右,预计未来几年将进一步增加。在本文中,我们专注于服务器基础设施,并观察到工作负载整合技术,最大限度地提高服务器系统的电源效率,不自动优化整体系统的电源效率,特别是当计算引擎和相应的板载冷却系统被认为是整体。我们设计了SpinSmart,这是一个探索最佳服务器风扇速度以最大限度地降低整体系统能耗的框架。我们探索核心封顶策略,估计在任何给定时间要使用的CPU核心的期望数量,以最大限度地减少CPU+风扇的组合功率。我们的实验结果表明,我们能够实现1)与没有核心封顶策略的工作负载整合相比,节省高达10%的总能量和80%的冷却能量; 2)与随机分配任务到所有服务器和核心的策略相比,冷却能量节省高达42%。
Cost of data centers has risen sharply in the past few years. Today, it represents about 3% of total US energy consumption with projections to increase further in the coming years. In this paper, we focus on the server infrastructure and observe that workload consolidation techniques, which maximize power efficiency of server systems, do not automatically optimize the overall system power efficiency especially when compute engines and the corresponding on-board cooling systems are considered holistically. We design SpinSmart, a framework that explores optimal server fan speeds to minimize the overall system energy consumption. We explore core capping strategies that estimate the desired number of CPU cores to be used at any given time to minimize combined CPU+fan power. Our experimental results show that we are able to achieve 1) energy savings of up to 10% of total energy and 80% of cooling energy when compared to workload consolidation without core capping strategy; 2) cooling energy savings up to 42% when compared to the strategy that randomly assigns jobs to all the servers and cores.
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