ESMF_VMInitializePreMPI Subroutine

  subroutine ESMF_VMInitializePreMPI(rc)
!
! !ARGUMENTS:
    integer, intent(out), optional :: rc
!
! !DESCRIPTION:
!   Initialize parts of the Global VM that must happen before MPI is initialized.
!
!   The arguments are:
!   \begin{description}
!   \item[{[rc]}] 
!        Return code; equals {\tt ESMF\_SUCCESS} if there are no errors.
!   \end{description}
!
!EOPI
!------------------------------------------------------------------------------
    integer                 :: localrc      ! local return code

    ! initialize return code; assume routine not implemented
    localrc = ESMF_RC_NOT_IMPL
    if (present(rc)) rc = ESMF_RC_NOT_IMPL

    ! Call into the C++ interface.
    call c_ESMC_VMInitializePreMPI(localrc)
    ! Cannot use LogErr here because LogErr initializes _after_ VM
    if (localrc /= ESMF_SUCCESS) then
      if (present(rc)) rc = localrc
      return
    endif
    
    ! return successfully
    if (present(rc)) rc = ESMF_SUCCESS

  end subroutine ESMF_VMInitializePreMPI