Accurate application progress analysis for large-scale parallel debugging

@inproceedings{Mitra2014AccurateAP,
  title={Accurate application progress analysis for large-scale parallel debugging},
  author={Subrata Mitra and Ignacio Laguna and Dong H. Ahn and Saurabh Bagchi and Martin Schulz and Todd Gamblin},
  booktitle={PLDI},
  year={2014}
}
Debugging large-scale parallel applications is challenging. In most HPC applications, parallel tasks progress in a coordinated fashion, and thus a fault in one task can quickly propagate to other tasks, making it difficult to debug. Finding the least-progressed tasks can significantly reduce the effort to identify the task where the fault originated. However, existing approaches for detecting them suffer low accuracy and large overheads; either they use imprecise static analysis or are unable… CONTINUE READING
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  • Our fault-injection experiments suggest that its accuracy and precision are over 90% for most cases and that it scales well up to 16,384 MPI tasks.

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