A job scheduling simulator in data grid based on GridSim

The job scheduling strategy influences the QoS of data grid immediately. This paper firstly summarizes and defines data grid models and the process of job scheduling, simultaneously analyzes the time and cost of job execution in the data grid, then proposes a design proposal of the job scheduling simulator of data grid based on a grid simulator named GridSim, and introduces the architecture, process and key technologies of the job scheduling simulator. Finally, it proves that this job scheduling simulator can satisfy the need of research on the data grid optimization theories.