Research Area:  Cloud Computing
The infrastructure resources in distributed green cloud data centers (DGCDCs) are shared by multiple heterogeneous applications to provide flexible services to global users in a high-performance and low-cost way. It is highly challenging to minimize the total cost of a DGCDC provider in a market, where bandwidth prices of Internet service providers (ISPs), electricity prices, and the availability of renewable green energy all vary with geographical locations. Unlike existing studies, this paper proposes a spatial task scheduling and resource optimization (STSRO) method to minimize the total cost of their provider by cost-effectively scheduling all arriving tasks of heterogeneous applications to meet tasks delay-bound constraints. STSRO well exploits spatial diversity in DGCDCs. In each time slot, the cost minimization problem for DGCDCs is formulated as a constrained optimization one and solved by the proposed simulated annealing-based bat algorithm (SBA). Trace-driven experiments demonstrate that STSRO achieves lower total cost and higher throughput than two typical scheduling methods.
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Author(s) Name:  Haitao Yuan; Jing Bi; MengChu Zhou
Journal name:  IEEE Transactions on Automation Science and Engineering
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Publisher name:  IEEE
DOI:  10.1109/TASE.2018.2857206
Volume Information:  Volume: 16, Issue: 2, April 2019
Paper Link:   https://ieeexplore.ieee.org/abstract/document/8425724