一种基于资源可靠性的网格资源调度

在借鉴已有的考虑任务按时完成率对资源可靠性影响的基础上,提出了增加考虑任务被执行所需实际时间比任务预期完成时间提前或超出的程度所影响的资源可靠性量度模型,并运用该模型对资源的可靠性值进行评价,从而在网格资源调度中实现了网格资源的动态调度。模拟实验表明,通过增加考虑任务被执行所花的实际时间比任务预期完成时间提前和超出的程度可以在任务按时完成率稳定的情况下,大大降低超期执行任务的超期程度,从而从总体上让用户得到可靠性程度更高的资源服务。

A Grid Resource Scheduling Method Based on Resource Reliability

A Grid Resource Scheduling Method which is based on Resource Reliability is presented. In the method , the Resource Reliability model is not only designed according to whether the task is completed on time but also based on the percent-age of real time by expectation time of the execution of task. From the experiment, we can see the method can provide more re-liable resource to the users.