This paper describes the design and implementation of PMD-a debugger for Occam2 on an experimental distributed memory MIMD machine. Static analysis of the source code is used to build a model of the program, albeit incomplete, with minimal run-time information being filled in dynamically from a dedicated hardware monitor. The notion of Region of Channel Usage (RCU) is introduced to efficiently detect concurrency-related errors. PMD is currently being extended to deal with languages with dynamic process creation and non-blocking communication schemes
Published in:
Parallel and Distributed Processing, 1991. Proceedings of the Third IEEE Symposium on
Date of Conference: 2-5 Dec 1991