Other MPE Routines


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Sometimes during the execution of a parallel program, you need to ensure that only a few (often just one) processor at a time is doing something. The routines MPE_Seq_begin and MPE_Seq_end allow you to create a ``sequential section'' in a parallel program.

The MPI standard makes it easy for users to define the routine to be called when an error is detected by MPI. Often, what you'd like to happen is to have the program start a debugger so that you can diagnose the problem immediately. In some environments, the error handler in MPE_Errors_call_dbx_in_xterm allows you to do just that. In addition, you can compile the MPE library with debugging code included. (See the -mpedbg configure option.)



Up: The MPE library of useful extensions Next: Profiling Libraries Previous: Parallel X Graphics