Saving 200kW and $200 K/year by power-aware job/machine scheduling
Saving 200kW and $200 K/year by power-aware job/machine scheduling
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DOI：
10.1109/ipdps.2008.4536218
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发表时间：
2008-04
期刊：
影响因子：
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通讯作者：
J. Hikita;Akio Hirano;H. Nakashima
中科院分区：
文献类型：
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作者：
J. Hikita;Akio Hirano;H. Nakashima
本文报告了我们对京都大学超级计算机系统的功率感知操作进行的3.75年的实证研究。10万亿次浮点运算的超级计算机系统在2004年的第一个财政年度平均需要约540千瓦。在此之后，经过一年的试错式节能运行，我们实施了一个简单而有效的作业和机器供电调度程序，将每负载功率效率提高了39%，并在2006财政年度节省了200千瓦和200，000美元的电费。功率感知调度器试图最小化11个节点的系统中的活动节点的数量，从而为给定的负载保持足够的计算能力。因此，在平均作业等待时间方面，功率感知调度器没有降低服务质量，而是显著地提高了服务质量。
This paper reports our 3.75-year empirical study on power-aware operations of Kyoto University's supercomputer system. The supercomputer system of 10 TFlops had required about 540 kW on average in its first fiscal year 2004. After that and one-year try-and-error of power efficient operation, we implemented a simple but effective scheduler of jobs and machine powering to improve the per- load power efficiency by up to 39 % and to save 200 kW and $200,000 electric charge in the fiscal year 2006. The power-aware scheduler tries to minimize the number of active nodes in the system of eleven nodes keeping sufficient computational power for given loads. Thus the power- aware scheduler has not degraded, but has significantly improved, the service quality in terms of the average job- waiting time.