The MPI Standard specifies a mechanism for installing one's own error handler,
and specifies the behavior of two predefined ones, MPI_ERRORS_RETURN
As part of the mpe library, we include two other error handlers to
facilitate the use of dbx in debugging MPI programs.
MPE_Errors_call_dbx_in_xterm MPE_Signals_call_debuggerThese error handlers are located in the mpe directory. A configure option (-mpedbg) includes these error handlers into the regular MPI libraries, and allows the command-line argument -mpedbg to make MPE_Errors_call_dbx_in_xterm the default error handler (instead of MPI_ERRORS_ARE_FATAL).