1. Power Cost Reduction in Distributed Data Centers: A Two-Time-Scale Approach for Delay Tolerant Workloads.
- Author
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Yao, Yuan, Huang, Longbo, Sharma, Abhishek B., Golubchik, Leana, and Neely, Michael J.
- Subjects
- *
STOCHASTIC analysis , *CLIENT/SERVER computing management , *DATA libraries , *SERVER farms (Computer network management) , *ELECTRICITY pricing , *DELAY lines , *EQUIPMENT & supplies - Abstract
This paper considers a stochastic optimization approach for job scheduling and server management in large-scale, geographically distributed data centers. Randomly arriving jobs are routed to a choice of servers. The number of active servers depends on server activation decisions that are updated at a slow time scale, and the service rates of the servers are controlled by power scaling decisions that are made at a faster time scale. We develop a two-time-scale decision strategy that offers provable power cost and delay guarantees. The performance and robustness of the approach is illustrated through simulations. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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