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arXiv 1808.04864cs.AR
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横向扩展处理器和能效

Scale-Out Processors & Energy Efficiency

Pouya Esmaili-Dokht, Mohammad Bakhshalipour, Behnam Khodabandeloo, Pejman Lotfi-Kamran, Hamid Sarbazi-Azad

摘要:

媒体流或Web搜索等横向扩展工作负载为数百万用户提供服务,并对大量数据进行操作,因此需要巨大的计算能力。随着用户数量的增加和数据规模的扩大,需要更多的计算能力来为这些工作负载提供动力。拥有数千台服务器的数据中心正在提供执行横向扩展工作负载所需的计算能力。由于运营数据中心需要巨大的资本支出,因此必须对其进行优化,以有效地执行横向扩展工作负载。服务器处理器对数据中心的资本支出贡献很大,因此是优化的主要候选者。虽然数据中心受到功率的限制,并且功耗是导致总拥有成本(TCO)的主要因素之一,但最近推出的横向扩展设计方法可以使用单位面积性能来优化数据中心的服务器处理器。在这项工作中,我们使用一个更相关的性能每功率指标作为优化服务器处理器的优化标准,并重新评估横向扩展的设计方法。有趣的是,我们表明,一个横向扩展处理器,提供最高的性能每单位面积,也提供了最高的性能每单位功率。

英文摘要:

Scale-out workloads like media streaming or Web search serve millions of users and operate on a massive amount of data, and hence, require enormous computational power. As the number of users is increasing and the size of data is expanding, even more computational power is necessary for powering up such workloads. Data centers with thousands of servers are providing the computational power necessary for executing scale-out workloads. As operating data centers requires enormous capital outlay, it is important to optimize them to execute scale-out workloads efficiently. Server processors contribute significantly to the data center capital outlay, and hence, are a prime candidate for optimizations. While data centers are constrained with power, and power consumption is one of the major components contributing to the total cost of ownership (TCO), a recently-introduced scale-out design methodology optimizes server processors for data centers using performance per unit area. In this work, we use a more relevant performance-per-power metric as the optimization criterion for optimizing server processors and reevaluate the scale-out design methodology. Interestingly, we show that a scale-out processor that delivers the maximum performance per unit area, also delivers the highest performance per unit power.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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