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arXiv cs/0610131cs.DC
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星型平台上的调度和数据再分配策略

Scheduling and data redistribution strategies on star platforms

Loris Marchal, Veronika Rehn, Yves Robert, Frédéric Vivien

摘要:

在这项工作中,我们感兴趣的问题的调度和重新分配数据的主从平台。我们考虑的情况是工人拥有初始负载,其中一些必须重新分配,以平衡他们的完成时间。我们研究两种不同的情况。第一个模型假设数据由独立且相同的任务组成。我们证明了NP-完全性在强意义下的一般情况下,我们提出了两个特殊的平台类型的最优算法。此外,我们提出了一般情况下的三个算法。仿真结果验证了理论分析的正确性。第二种数据模型基于可分负载理论。这个问题可以解决在多项式时间的线性规划和简单的分析操作的组合。

英文摘要:

In this work we are interested in the problem of scheduling and redistributing data on master-slave platforms. We consider the case were the workers possess initial loads, some of which having to be redistributed in order to balance their completion times. We examine two different scenarios. The first model assumes that the data consists of independent and identical tasks. We prove the NP-completeness in the strong sense for the general case, and we present two optimal algorithms for special platform types. Furthermore we propose three heuristics for the general case. Simulations consolidate the theoretical results. The second data model is based on Divisible Load Theory. This problem can be solved in polynomial time by a combination of linear programming and simple analytical manipulations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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