Programming the Grid with Distributed Objects

The design of application for Computational Grids relies partly on communication paradigms. In most of the Grid experiments, message-passing has been the main paradigm either to let several processes from a single parallel application to exchange data or to allow several applications to communicate between each others. In this article, we advocate the use of a modern approach for programming a Grid. It is based on the use of distributed objects, namely CORBA objects. In this paper, we give an overwiew of two projects that deal with the building of an e cient distributed objects platform for computational grids. The rst project aims at encapsulating e ciently parallel codes into distributed objects (PaCo) whereas the second project aims at designing a runtime system allow a CORBA middleware to exploit very fast networking technologies.