Abstract

In this work, a job-flow scheduling approach for Grid virtual organizations is proposed and studied. Users’ and resource providers’ preferences, virtual organization’s internal policies, resources geographical distribution along with local private utilization impose specific requirements for efficient scheduling according to different, usually contradictive, criteria. With increasing resources utilization level the available resources set and corresponding decision space are reduced. This further complicates the task of efficient scheduling. In order to improve overall scheduling efficiency we propose a heuristic anticipation scheduling approach. It generates a near optimal but infeasible scheduling solution and includes special replication procedure for efficient and feasible resources allocation.

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