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A multi-cluster computing environment is composed of many clusters which are distributed over different sites in an organization or an enterprise. All the clusters can be resource shared, autonomous, load balanced, interconnected and collaborative. However, there is still a problem that the uncertainty of the cluster resources caused difficulty in scheduling jobs effectively. To address this problem,...
Wireless data broadcast is very suitable for delivering information to large user population. In this paper, we concentrate on data scheduling algorithm over multiple channels in mobile computing environments. First, we formulate the average expected delay of multiple channels considering data items' access frequencies, variable length, and different bandwidth of each channel. Second, we propose a...
FCFS is the most simple, basic and commonly used method of job scheduling in clusters. Backfilling scheduling that small jobs are moved ahead in the schedule can fill the resources gap that is generated by FCFS. However, existing backfilling scheduling algorithms are available for a queued job backfilled to schedule. The resources gap can't be fully utilized. A method of combinational backfilling...
This paper proposes a Fuzzy-Safety-Buffer approach for measuring the project buffer size in critical chain project scheduling. The method focuses on the combination of the requirements of the project manages and the customers. Firstly using the trapezoidal fuzzy function, agreement index presents the project managers' requirement. Then the safety buffer concept derived from the safety stock concept...
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