CGSP-based Legacy Applications Execution and Coordination

Grid technologies give the chance to share distributed computing resources in Internet. Many researches and projects have done to deploy and integrate legacy applications and programs into service-oriented grid architecture. However, the coordination of legacy applications is still scarce of good approaches. ChinaGrid support platform (CGSP) is the kernel grid middleware of ChinaGrid project. It enables deployment, invocation and coordination of legacy applications in grid. This paper introduces the architecture of CGSP, presents the legacy application execution mechanism through CGSP, come up with an abstract workflow specification named ChinaGrid Workflow Description Language (CGWDL) which can be transformed into BPEL, analyze the life cycle of coordinating legacy applications based on CGSP. An image processing application is used to validate the feasibility and efficiency of our solution.