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The problem of scheduling workflow applications in a grid environment is considered. The problem is divided into two stages: (i) resource allocation, which consists in allocating distributed grid resources to tasks of a workflow in such a way that the resource demands of each task are satisfied, and (ii) scheduling performed by local grid schedulers. Grid resources are divided into computational and...
In this paper we present a review of the new concepts of resource categories, motivated by practical situations, which have appeared in the project scheduling theory over the last decade. A basic resource classification from the point of view of resource constraints, divisibility, and preemptibility is presented. A new category of multi-site resources is introduced, and a multi-more resource-constrained...
In this paper the multi-mode resource-constrained project scheduling problem with discounted cash flows is considered. A positive cash flow is associated with the completion of each activity. The objective is the maximization of the net present value of all cash flows. Local search metaheuristics: simulated annealing and tabu search are proposed to solve this problem. A comprehensive computational...
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