mpi_op_free 57 ompi/mpi/fortran/mpif-h/op_free_f.c mpi_op_free, mpi_op_free 321 ompi/mpi/fortran/mpif-h/prototypes_mpi.h PN2(void, MPI_Op_free, mpi_op_free, MPI_OP_FREE, (MPI_Fint *op, MPI_Fint *ierr));