【作者】 马晓海；

【导师】 龚跃；

【作者基本信息】 长春理工大学 ， 计算机软件与理论， 2010， 硕士

【摘要】 随着计算机被各行各业的普遍应用,数据库的应用越来越广泛。并行传输中长事务的调度问题日益凸显,其中长事务的处理和调度是一个关键的问题,对调度方法的研究势在必行。提高系统并发度、保持网络负载平衡具有非常重要的意义。本文在分析了并行传输平台系统任务的调度和常见的中心任务调度算法的基础上,着重研究了适合本系统的任务分配与调度算法。论文研究的任务调度算法采用平衡动态的任务调度策略,把任务合理地分配到不同的子机。决策必须在调度执行决策之前做出,并在执行中动态调整任务。我们开发出一种算法模拟程序,并对算法结果进行分析,最后给出了分析的结论,从而解决了大型网络系统中长事务并行传输调度的难题。更多还原

【Abstract】 The database application is more and more comprehensive along with the computer’s universal application in various trades and occupations .In the parallel transmission ,the problem of the scheduling of the long business is more and more obvious day by day, in which long business processing and the dispatching are essential questions. The research of dispatching method is imperative . Enhancing the system concurrency and keeping the balance of the network load have the extremely vital significance.This article researched emphatically the algorithm of the duty assignment and the dispatch which is appropriate for this system,which was based on analyzing the task dispatch the parallel transmission platform system and the common dispatch algorithm about central task . The task scheduling algorithm which the paper research uses the balanced dynamic task scheduling tactics and distributes the assignment to different parasite computer. The decision must be made before executing and carries it out and adjust dynamically the duty when it is carring out. We researched a simulative on the algorithm and analyzed the result of our algorithm and got the conclusion so that we solved the difficult problem of the long business’s parallel transmission and dispatching in the large-scale network system.更多还原