Database Architecture for GEMLCA Resource Availability Research Paper

Database Architecture for GEMLCA Resource Availability - Research Paper Example GEMLCA or Grid Execution Management for Legacy Code Architecture is a language independent solution used to deploy existing legacy code applications as a Grid service. Any application written in any language can be deployed as a grid service without the need of even legacy code i.e. binary codes and source code. It is a computing system consisting of PC clusters. Legacy applications are deployed on these servers as grid services. Compute servers are then accessed by various grid clients for required resources. Grid host environment is used to implement service-oriented grid layer which is based on Open Grid Services Architecture (OGSA) specifications e.g. GT3, GT4, g-Lite or the OMII middleware. This layer is required to connect computer server to OSGA built grid. The selected grid should allow the grid clients to access legacy applications available in computer servers like a grid or web services. Administrators should be able to deploy new legacy applications on computer server using different job managers like Condor, Fork, PBS, etc. GEMLCA resources are consists of legacy codes which are deployed as grid services. These resources are installed on the computer server. GEMLCA Resource layer manages the interaction between Grid services and Grid Host Environment. Resource Layer is used for the following purposes: Deploying legacy applications as Grid services Querying the GEMLCA resources and get the list of available legacy applications getting the list of legacy parameters with default values and allow the user to modify these submitting legacy jobs to a job manager querying the status of previously submitted legacy jobs retrieving results from legacy applications GEMLCA Resource layer has the following three services: GLCAdmin It deploys a legacy application as a Grid service. GLCList It searches for legacy applications available over a grid. GLC Process It manages the workflow processes over Grid such as submitting a legacy application using GEMLCA and getting job status and results back.