A Scalable and Low-Cost Grid Portal

By analyzing various current grid portal designing modules, we propose pluggable based-on-OSGi grid portal, called BOPGP, to guarantee grid portal independent of platforms. BOPGP is designed based on OSGi, encapsulating grid service into dynamically installed and uninstalled Bundle, which can enlarge and modify system functions. To better satisfy the users´ requirement of on-demand computing, we also combine the asynchronous and synchronous request technologies to decrease grid portal´s response time, and give some formalized descriptions of co-operation between users and portal, to measure the spending of users´ computing through portal. Parameters such as operating cost, operating utility, are defined to evaluate the portal performance. Consequently, we put BOPGP into software sharing system. Analyzing experimental results, it is proved that BOPGP has fine scalability and low cost.