A Model for a Component Based Grid-Aware Scientific Library Service

The paper presents a hierarchical model for integrating structured HPC legacy software modules into a grid-adaptive scientific library service able to deliver quality computing-service on a performance contract basis. The service proactively administers both computing resources and configurable library software modules on behalf of client applications, and seamlessly supports their re-configuration according to grid-aware strategies of active managers of client applications. The library administrator logic mimics functionalities of components containers of service-oriented architectures. The authors discuss the coordination of library-serviced components into grid-aware applications composed according to the programming model being developed by the Italian Grid.it Project. Sample architecture for the library service, based on Grid.it component technology, is sketched.