High-Level Execution and Communication Support for Parallel Grid Applications in JGrid

This paper describes the high-level execution and communication support provided in JGrid, a serviceoriented dynamic grid framework. One of its core services, the Compute Service, is the key component in creating dynamic computational grid systems that enable the execution of sequential and parallel interactive grid applications. A fundamental set of program execution modes supported by the service is described, then a programming model and its corresponding application programming interface is presented. The execution support of the service architecture is described in detail illustrating how remote evaluation and run-time task spawning are provided. The paper also shows in detail how task spawning and dynamic proxies can be used for a service-oriented communication mechanism for coarsegrain parallel grid applications. 1