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);