ESMF_FieldSync Subroutine

  subroutine ESMF_FieldSync(field, keywordEnforcer, rc)
!
! !ARGUMENTS:
    type(ESMF_Field), intent(in)            :: field
type(ESMF_KeywordEnforcer), optional:: keywordEnforcer ! must use keywords below
    integer,          intent(out), optional :: rc  
!
! !DESCRIPTION:
!     Synchronizes access to DEs across {\tt field} to make sure PETs correctly
!     access the data for read and write when DEs are shared. 
!
!     The arguments are:
!     \begin{description}
!     \item[field] 
!          Specified {\tt ESMF\_Field} object.
!     \item[{[rc]}] 
!          Return code; equals {\tt ESMF\_SUCCESS} if there are no errors.
!     \end{description}
!
!EOP
!------------------------------------------------------------------------------
    integer                 :: localrc      ! local return code
    type(ESMF_Array)        :: array

    ! initialize return code; assume routine not implemented
    localrc = ESMF_RC_NOT_IMPL
    if (present(rc)) rc = ESMF_RC_NOT_IMPL
    
    ! Check init status of arguments
    ESMF_INIT_CHECK_DEEP(ESMF_FieldGetInit, field, rc)
    
    ! Retrieve the Array object and call into the Array API
    call ESMF_FieldGet(field, array=array, rc=localrc)
    if (ESMF_LogFoundError(localrc, ESMF_ERR_PASSTHRU, &
      ESMF_CONTEXT, rcToReturn=rc)) return
    call ESMF_ArraySync(array, rc=localrc)
    if (ESMF_LogFoundError(localrc, ESMF_ERR_PASSTHRU, &
      ESMF_CONTEXT, rcToReturn=rc)) return
      
    ! return successfully
    if (present(rc)) rc = ESMF_SUCCESS
    
  end subroutine ESMF_FieldSync