Setting Up MPI Debugging Sessions

This chapter explains how to set up TotalView MPI debugging sessions. For information on other parallel programs, see Chapter 7, “Setting Up Parallel Debugging Sessions”.

For TotalView Individual, all your MPI processes must execute on the computer on which you installed TotalView. Further, you are limited to no more than 16 processes and threads.

This chapter describes the following MPI systems:

“Debugging MPI Programs”

“Debugging MPICH Applications”

“Debugging MPICH2 Applications”

“Debugging Cray MPI Applications”

“Debugging IBM MPI Parallel Environment (PE) Applications”

“Debugging IBM Blue Gene Applications”

“Debugging LAM/MPI Applications”

“Debugging QSW RMS Applications”

“Debugging SiCortex MPI Applications”

“Debugging Sun MPI Applications”

“Using ReplayEngine with Infiniband MPIs”

“Debugging Parallel Applications Tips”

This chapter also describes debugger features available with most parallel models:

For messaging systems, TotalView displays information visually as a message queue graph and textually in a Message Queue Window. See “Displaying the Message Queue Graph Window” and “Displaying the Message Queue”.

For attaching to a process, see “Attaching to Processes Tips”.

For ideas on strategies for debugging parallel programs, see “Debugging Parallel Applications Tips”.