Abstract
In grid resource management, the scheduling strategy based on selecting resources that are near and owns more bandwidth available has better characteristics. The notion of grid-distance is proposed in this paper, which can be used as the criteria for grid selection taking physical distance, bandwidth available and cost into consideration. A grid resource model and a correlative application model are also presented. Based on this model, the computation of grid distance and the corresponding resource selection algorithm are described. The simulation experiment validates the improvement of the communication cost, stability; job completion time, failure rate of job execution in scheduling and the throughput of the resource exchange.