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A hybrid energy-Aware virtual machine placement algorithm for cloud environments

Author name : ESLAM FOAD MOHAMED KHALIL AHMED HAMOUDA
Publication Date : 2020-07-15
Journal Name : Expert System with applications

Abstract

The high energy consumption of cloud data centers presents a significant challenge from both economic and environmental perspectives. Server consolidation using virtualization technology is widely used to reduce the energy consumption rates of data centers. Efficient Virtual Machine Placement (VMP) plays an important role in server consolidation technology. VMP is an NP-hard problem for which optimal solutions are not possible, even for small-scale data centers. In this paper, a hybrid VMP algorithm is proposed based on another proposed improved permutation-based genetic algorithm and multidimen- sional resource-aware best fit allocation strategy. The proposed VMP algorithm aims to improve the en- ergy consumption rate of cloud data centers through minimizing the number of active servers that host Virtual Machines (VMs). Additionally, the proposed VMP algorithm attempts to achieve balanced usage of the multidimensional resources (CPU, RAM, and Bandwidth) of active servers, which in turn, reduces resource wastage. The performance of both proposed algorithms are validated through intensive experi- ments. The obtained results show that the proposed improved permutation-based genetic algorithm out- performs several other permutation-based algorithms on two classical problems (the Traveling Salesman Problem and the Flow Shop Scheduling Problem) using various standard datasets. Additionally, this study shows that the proposed hybrid VMP algorithm has promising energy saving and resource wastage per- formance compared to other heuristics and metaheuristics. Moreover, this study reveals that the proposed VMP algorithm achieves a balanced usage of the multidimensional resources of active servers while oth- ers cannot.

Keywords

Cloud computing, Server consolidation, Virtual machine placement, Permutation-based optimization

Publication Link

https://doi.org/10.1016/j.eswa.2020.113306

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