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Debugging for Parallel MPI programs is much different from transitional memory debug for serial programs. This is because the non-deterministic nature of all parallel programs. Therefore, it is essential to obtain knowledge of both message queues for debugging MPI programs and stack trace for memory examination.   

On NCI compute systems, the following two debug/inspection tools are installed:

See the details at https://opus.nci.org.au/display/Help/Padb.

See the details at https://opus.nci.org.au/display/Help/TotalView.