Allocation of Virtual Machines in Cloud Data Centers—A Survey of Problem Models and Optimization Algorithms

Data centers in public, private, and hybrid cloud settings make it possible to provision virtual machines (VMs) with unprecedented flexibility. However, purchasing, operating, and maintaining the underlying physical resources incurs significant monetary costs and environmental impact. Therefore, clo...

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Bibliographic Details
Published in:ACM computing surveys 2015-09, Vol.48 (1), p.1-34
Main Author: Mann, Zoltán Ádám
Format: Article
Language:English
Subjects:
Algorithms
Allocations
Cloud computing
Computer centers
Costs
Environmental impact
Flexibility
Maintenance management
Optimization
Optimization algorithms
Resource allocation
Studies
Virtual environments
Virtual reality
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Summary:Data centers in public, private, and hybrid cloud settings make it possible to provision virtual machines (VMs) with unprecedented flexibility. However, purchasing, operating, and maintaining the underlying physical resources incurs significant monetary costs and environmental impact. Therefore, cloud providers must optimize the use of physical resources by a careful allocation of VMs to hosts, continuously balancing between the conflicting requirements on performance and operational costs. In recent years, several algorithms have been proposed for this important optimization problem. Unfortunately, the proposed approaches are hardly comparable because of subtle differences in the used problem models. This article surveys the used problem formulations and optimization algorithms, highlighting their strengths and limitations, and pointing out areas that need further research.
ISSN:0360-0300
1557-7341
DOI:10.1145/2797211