MPI_Comm_f2c      109 ompi/mca/io/romio321/romio/mpi-io/fortran/openf.c     comm_c = MPI_Comm_f2c(*comm);
MPI_Comm_f2c       44 ompi/mpiext/example/mpif-h/mpiext_example_progress_f.c     MPI_Comm c_comm = MPI_Comm_f2c(*comm);