Extended Resource Information Services Based-on Directory Service Technology

In Grid environment, resources are widely distributed geographically and belong to different heterogeneous administrative domains respectively, involving various accessing and sharing strategies. In such heterogeneous dynamic environment, it's of considerable realistic value to provide perfect resource information service. In this paper, we study the directory-based service mechanism and structural modules of resource information, and analyze the performance of meta-computing directory service and offer an optimizing strategy. We also provide the on-line gathering and delivery of dynamic parameters of network and CPU, and perfect and extend the directory-based resource information structure, and develop a computing grid oriented prototype system of general information service.