using the intel version of gdb

I would like to run ddd using the INTEL gdb-ia inferior debugger.  I 
tried using the command line argument --debugger, but it hung ddd.


I would like to debug MPI programs using gdb-ia.  The method I was told 
to do this is using the following command line


mpiexec -gdb -n 4 ./program


How would this work under ddd?


THanks

Mike