Middleware Evaluation
| will survey some of the existing grid middleware, chosen among the most notable and easy to access for the partners, especially Globus 3, DataGrid/EGEE, and DIET. These middleware provide a significant panorama of the various grid concepts, designs and technologies such as Virtual Organisations, Peer-to-Peer (P2P) architectures, Web services, agent technologies, replica management, brokering strategies etc.
It is critical for the success of the project to refrain from developing middleware functionalities which are already available, even if not perfectly suited for its needs: focused research and the deployment of a testbed in the course of the project require to be supported by an existing hardware and software infrastructure.
- Task expected outputs
- Assess the compatibility of the above mentioned middleware with the needs of this project
- Find existing basic services suitable for the medical applications
- Help all the tasks to converge toward the choice of a target platform for the testbed
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Workflow Management
| addresses the data distribution and time constraints related to medical applications. The architecture group will track common needs among the four applications and formally define Grid services. The main purpose of this task is to define an interface between Core Medical Services and Medical Applications
To correctly answer application requests, it is critical that the middleware is able to allocate resources and to transfer data in a short enough time. In general, the resources and data sets needed by an application cannot be determined prior to its execution. The grid infrastructure is dynamically updated and loosely controlled. The architecture has to adapt to the running application conditions by monitoring grid resources and application level requests.
- Task expected outputs
- A workflow management service
able to handle application requests, through the agreed interface, by calling Core Medical Services (data access, compression, job scheduling) and allocating the needed resources.
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