Abstract
In this paper, a heuristic user job-flow scheduling approach for Grid virtual organizations with non-dedicated resources is discussed. 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. Initially it generates a near optimal but infeasible scheduling solution which is then used as a reference for efficient resources allocation.
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