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- W2963192016 abstract "Recent studies have shown that power-proportional data centers can save energy cost by dynamically “right-sizing” the data centers based on real-time workload. More servers are activated when the workload increases while some servers can be put into the sleep mode during periods of low load. In this paper, we revisit the dynamic right-sizing problem for heterogeneous data centers with various operational cost and switching cost. We propose a new online algorithm based on a regularization technique, which achieves a better competitive ratio compared to the state-of-the-art greedy algorithm in [17]. We further introduce a switching cost offset into the model and extend our algorithm to this new setting. Simulations based on real workload and renewable energy traces show that our algorithms outperform the greedy algorithm in both settings." @default.
- W2963192016 created "2019-07-30" @default.
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- W2963192016 date "2018-12-01" @default.
- W2963192016 modified "2023-10-16" @default.
- W2963192016 title "An Online Algorithm for Power-Proportional Data Centers with Switching Cost" @default.
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- W2963192016 doi "https://doi.org/10.1109/cdc.2018.8619443" @default.
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