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针对传统可分割作业多路调度算法不能适应动态网格环境的不足,基于统一多路(Uniform Multi-Round:UMR)算法,提出一种可靠的可分割作业调度机制.系统动态地监控网格资源的变化,当资源发生变化时,通过性能预测与评估,及时地对剩余作业进行再调度.实验表明,较之传统的多路调度算法,该机制在动态的网格环境下,降低了作业完成时间,有效地利用了网格资源,提高了作业调度的可靠性.
In order to overcome the shortcomings of the traditional partitioned job multi-path scheduling algorithm that can not adapt to the dynamic grid environment, this paper proposes a reliable partitionable job scheduling mechanism based on Uniform Multi-Round (UMR) algorithm. The system dynamically monitors the grid When resources are changed, the remaining jobs are rescheduled in time through the performance prediction and evaluation.The experiment shows that compared with the traditional multi-path scheduling algorithm, this mechanism reduces the workload in the dynamic grid environment Complete the time, effectively utilize the grid resources, and improve the reliability of job scheduling.