Journal
IEEE TRANSACTIONS ON CLOUD COMPUTING
Volume 10, Issue 4, Pages 2469-2480Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCC.2020.3031881
Keywords
Data center; energy management; renewable resource; energy storage; Lyapunov optimization; ADMM
Categories
Funding
- National Natural Science Foundation of China [61772130, 61873167, 62072096]
- Fundamental Research Funds for the Central Universities [2232020A-12]
- International S&T Cooperation Program of Shanghai Science and Technology Commission [20220713000]
- Young Top-notch Talent Program in Shanghai
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This article investigates the energy management problem of geo-distributed data centers with renewable resources and energy storages. By leveraging the spatiotemporal diversity of system states, the goal is to minimize the long-term operation cost including electricity cost, water consumption, and carbon emission. The article proposes an online algorithm using Lyapunov optimization technique and a distributed algorithm based on the ADMM framework.
For Internet and cloud computing service providers, running massive geo-distributed data centers incurs prodigious electricity cost and water consumption as well as carbon emission rooted in electricity generation. Thus, it is critical significant for providers to lower down the operation cost of data centers. In this article, we investigate the problem of energy management for geo-distributed data centers with renewable resources and energy storages. We aim to minimize the long-term operation cost including electricity cost, water consumption, and carbon emission by leveraging the spatiotemporal diversity of these system states. To this end, we first formulate the cost minimization problem as a stochastic optimization problem, then we adopt the Lyapunov optimization technique to design a close-to-optimal online algorithm which only needs the current system information and achieves a delicate tradeoff between system cost and performance of delay tolerant workloads. To reduce the computational complexity and unnecessary communication, we further propose a distributed algorithm based on the distributed computing framework alternating direction method of multipliers (ADMM), which enables each data center to make their own control decisions. Based on the real-world traces and extensive simulations, we demonstrate the effectiveness of our proposed algorithms.
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