A thread-level distributed debugger

Abstract. In order to address the diversity of existing parallel programming models, it is important to provide devel-opment environments that can be incrementally extended with new services. Concerning the debugging of process-based models, we have previously designed and implemented a basic interface that can be accessed by other tools as well as by debugging modules associated with high-level programming languages. In this paper we describe our work towards the support of further debugging functionalities for parallel and distributed programs, by discussing a model to support thread-based debugging services. We then show how those services are supported on top of a distributed monitoring and control software architecture.