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Since MPICH is portable, it has no built-in debugging support. For
some devices, it is possible to start the root process under a
debugger, or to start the entire application under a parallel
debugger. The best debugging option for MPICH is the Totalview
debugger , a commercial product from Dolphin
Interconnect Solutions that is one of the best parallel debuggers
available. Totalview has a good GUI with an intuitive ``dive''
feature and a coherent approach to debugging parallel programs. It is
integrated with MPICH (the ch_p4, ch_shmem, and
ch_lfshmem devices), understands MPI communicators and MPI message
queues and ``captures'' MPI processes as they start. Totalview runs
on IBM RS6000, Sun and Digital platforms. By the end of 1997 it is
expected to run on SGI R10000 platforms as well.
Sun Nov 9 14:03:51 EST 1997