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arXiv · 2302.13736

An Online Algorithm for Combined Computing Workload and Energy Coordination Within A Regional Data Center Cluster

Shihan Huang·Dongxiang Yan·Yue Chen
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Abstract

Regional data center clusters have flourished in recent years to serve customers in a major city with low latency. The optimal coordination of data centers in a regional cluster has become a pressing issue because of its rising energy consumption. In this paper, a Lyapunov optimization-based online algorithm is developed for the combined computing workload and energy coordination of data centers in a regional cluster. The proposed online algorithm is prediction-free and easy to implement. We prove that the workload queues and battery energy level will be within their physical limits, though their related time-coupling constraints are not considered explicitly in the proposed algorithm. The previous online algorithms do not have such a guarantee. A theoretical upper bound on the optimality gap between the online and offline results is derived to provide a performance guarantee for the proposed algorithm. To enable distributed implementation, an accelerated ADMM algorithm is developed with iteration truncation and follow-up well-designed adjustments, whereby a nearly optimal solution is attained with much enhanced computational efficiency. Case studies show the effectiveness of the proposed method and its advantages over the existing methods.

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Shihan Huang, Dongxiang Yan, Yue Chen. 2023-02-27. An Online Algorithm for Combined Computing Workload and Energy Coordination Within A Regional Data Center Cluster. https://arxiv.org/abs/2302.13736

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