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Scheduling in hybrid clouds

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3 Author(s)
Bittencourt, L.F. ; Univ. of Campinas, Campinas, Brazil ; Madeira, E.R.M. ; da Fonseca, N.L.S.

Schedulers for cloud computing determine on which processing resource jobs of a workflow should be allocated. In hybrid clouds, jobs can be allocated on either a private cloud or a public cloud on a pay per use basis. The capacity of the communication channels connecting these two types of resources impacts the makespan and the cost of workflow execution. This article introduces the scheduling problem in hybrid clouds presenting the main characteristics to be considered when scheduling workflows, as well as a brief survey of some of the scheduling algorithms used in these systems. To assess the influence of communication channels on job allocation, we compare and evaluate the impact of the available bandwidth on the performance of some of the scheduling algorithms.

Published in:

Communications Magazine, IEEE  (Volume:50 ,  Issue: 9 )