-Mprof=mpi an LAM -> possible ?

Hi I want to profile a MPI program, so I link with -Mprof=mpi option.
But I get this error : “/usr/bin/ld: cannot find -lfmpich”

I use LAM-MPI 7.1.1 and pgicdk64 6.1-2.

Is it possible to profile MPI program with my configuration or do I need to use MPICH ?

Thanks, Pierre.