Initial experiences with a pattern-oriented parallel debugger
PADD '88 Proceedings of the 1988 ACM SIGPLAN and SIGOPS workshop on Parallel and distributed debugging
Introduction to parallel algorithms and architectures: array, trees, hypercubes
Introduction to parallel algorithms and architectures: array, trees, hypercubes
The p2d2 project: building a portable distributed debugger
SPDT '96 Proceedings of the SIGMETRICS symposium on Parallel and distributed tools
Parallel algorithms for regular architectures: meshes and pyramids
Parallel algorithms for regular architectures: meshes and pyramids
Debugging with the MAD environment
Parallel Computing - Special double issue on environment and tools for parallel scientific computing
A Framework for Distributed Debugging
IEEE Software
Visualizing the Performance of Parallel Programs
IEEE Software
Debugging Massively Parallel Programs with ATEMPT
HPCN Europe 1996 Proceedings of the International Conference and Exhibition on High-Performance Computing and Networking
A scalable, visual interface for debugging with event-based behavioral abstraction
FRONTIERS '95 Proceedings of the Fifth Symposium on the Frontiers of Massively Parallel Computation (Frontiers'95)
Debugging Parallel Programs Using Incomplete Information
IWCC '99 Proceedings of the 1st IEEE Computer Society International Workshop on Cluster Computing
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Most parallel programs use regular topologies to support their computation. Since they define the relationship between processes, process topologies present an excellent opportunity for debugging. The primary benefit is that patterns of expected behaviour can be abstracted and identified, and unexpected behaviour reported. However, topology support is inadequate in many environments, including the popular Message Passing Interface (MPI). Programmers typically implement topology support themselves, increasing the possibility of introducing errors. Moreover, debugger support that exploits topological information is lacking. We have undertaken to develop a debugger that exploits topological information. This paper presents DEPICT (DEbugger of Parallel but Inconsistent Communication Traces), a (preliminary) topology-based debugger for MPI. Currently, DEPICT presents high-level visualisations of parallel program communication behaviour, where logically similar processes are clearly indicated in a manner that allows the programmer insight into overall program behaviour. To assist in understanding unexpected behaviour, DEPICT allows programmers to investigate the observed semantic differences between processes.