摘要
在网格计算中,预测网格节点性能的动态变化和网格任务的执行情况是影响网格任务高效调度是否成功的最重要因素之一。结合主机负载和任务执行时间的线性关系,研究分析了一种基于主机负载的任务执行时间预测算法。利用仿真实现了这种算法,对基于主机负载实现任务执行时间预测的可靠性进行了实验论证,并给出了预测精度的评价结果。
In the grid computing, the prediction of the dynamic change of network node performance and the implementation of the grid task is one of the most important factors, which deeides whether the efficient scheduling of grid task will be successful. In this dissertation, the authors studied and analyzed an algorithm predicting the execution time of task by the linear relationship between host load and the execution time of task. Then the authors simulated the prediction algorithm about the task execution time, validated the reliability of the execution time prediction of the task based on host load, and evaluated its prediction precision.
出处
《计算机应用》
CSCD
北大核心
2009年第10期2617-2619,2623,共4页
journal of Computer Applications
关键词
网格
主机负载
任务执行时间
性能预测
grid
host load
task execution time
performance prediction
