An online scheduling algorithm for Grid computing systems

Since the problem of scheduling independent jobs in heterogeneous computational resources is known as NP-complete [4], an approximation or heuristic algorithm is highly desirable. Grid is an example of the heterogeneous parallel computer system. Many researchers propose heuristic scheduling algorithm for Grid [1], [8], [9], [10]. In this paper, we propose a new on-line heuristic scheduling algorithm. We show that our scheduling algorithm has better performance than previous scheduling algorithms by extensive simulation.