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- W80034522 abstract "Cloud computing is becoming an alternative model for delivering computing resources and services to endusers and companies. The configuration of the clouds raises many issues that come from the need to manage efficiently the available resources in the data centers and from the agreements on the quality of the service that must be delivered to the clients. One of the key issues in the operation of the clouds consists in determining how the workload should be distributed among the physical machines such that the utilization of the computing resources in the cloud computing data centers is maximized. In this paper, we address this latter problem. We describe in particular a set of new and fast procedures for computing lower bounds on the number of physical machines that are required by a cloud provider to execute efficiently a set of user applications (virtual machines).To compute the bounds, we formulate this virtual machine allocation problem as a bin-packing problem and we address some of its variants. All our lower bounding procedures are polynomial-time algorithms that rely on the use of maximal dual-feasible functions. These functions are parameter dependent. We describe the best set of parameters when the 1-dimensional variant of the problem is considered, and we discuss the complexity of the lower bounding procedures that are proposed. We report also on extensive computational experiments conducted on benchmark instances of the literature. The results of these experiments show the strength of the lower bounds described in this paper." @default.
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- W80034522 date "2011-04-01" @default.
- W80034522 modified "2023-09-28" @default.
- W80034522 title "Efficient lower bounding procedures with application in the allocation of virtual machines to data centers" @default.
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