MPI_Op_c2f - converts MPI_Op to Fortran INTEGER

op     - op (handle)

       MPI_Op_c2f -  converts MPI_Op to Fortran INTEGER

       MPI_Fint MPI_Op_c2f(MPI_Op op)

       This routine is thread-safe.  This means that this routine may be safely used by multiple threads without
       the  need  for  any  user-provided thread locks.  However, the routine is not interrupt safe.  Typically,
       this is due to the use of memory allocation routines such as malloc or other non-MPICH  runtime  routines
       that are themselves not interrupt-safe.

                                                    4/17/2024                                      MPI_Op_c2f(3)