Operation of the K computer Focusing on System Power Consumption

IPSJ

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  • 消費電力を考慮した「京」の運用方法の検討

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Abstract

Recently, High-Performance Computing system has become more and more large, and the power consumption has become one of the important problems on the system operation. We also have the same problem on the operation of the K computer. To prevent the power consumption from exceeding the limit, we have made the preliminary review that estimates the power consumption of each job, and have controlled the system power consumption. In case of exceeding the power consumption limit, we have investigated the emergency job stopping method based on the estimated power consumption of each job. In this process, we estimate the power consumption of the job using thermal sensors in the compute racks. This estimation enables us to select the appropriate jobs to be stopped.

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