Leader of Group :

Introduction and Objectives This task was connected to the design and implementation of a monitoring and debugging architecture supporting the functionalities required by high-level development tools. The monitoring and debugging mechanisms should be adapted to the abstraction levels corresponding to the GRAPNEL system [10] -- a visual programming system for graph-based design of parallel programs -- and to the STEPS system [11] -- a tool for the static and dynamic analysis and testing of parallel programs --. The task concentrated on the folowing issues: ffl Functionalities for the monitoring and debugging of distributed processes. ffl Specification of well-defined interfaces between the monitoring components and highlevel tools. ffl Specification of well-defined interface between the monitoring components and the underlying system platform. ffl Experimentation with the developed prototypes in order to evaluate the inte