Runtime thread rescheduling: An extended scheduling algorithm to enhance the performance of the gridbus broker

Grid computing is becoming a requirement for the processing of large amount of data now-a-days. The Gridbus broker schedules jobs depending on data and compute resources. Current scheduling process does not reassign a job from lower compute resource to higher compute resource if higher compute resource is available. In this paper, we have proposed a technique to reassign a thread to higher grade executor by preempting the thread in lower grade executor by using the data restoration technique which track the information of the thread so far ran on a lower rate compute resource. It is done only if there is an idle higher computer resource is available. The performance as well as the reliability of the Grid has been improved by this approach in a considerable extent.