HIMAN-GP: A grid engine portal for controlling access to HIMAN grid middleware with performance evaluation using processes algebra

Grid portal is a secure web environment where user can monitor and execute grid applications, access grid resources, services, and collaborate with other users. A grid portal allows an organization to have a single URL that enables users to gain browser-based access to applications and any customized information in a virtualized, unified and secure way. The main requirement for this grid portal is to be user friendly where it shields the technical and complexity a ways from the users, as the user may does not have any background about technical points inside the grid computing environment like the heterogeneity of operating systems, hard wares, policies and so on. In this paper we propose a new web based grid portal called “HIMAN-GP” that controls access to our previous developed “HIMAN” grid middleware and adapts completely to the functionality of HIMAN, which does not have any user friendly portal to submit its tasks. We focus in this paper on two points: first is the architecture and services of HIMAN-GP, second is evaluating the performance and workload of HIMAN-GP using a performance evaluation process algebra language called “PEPA”.