nonblocking_send_complex_array Subroutine

  subroutine nonblocking_send_complex_array (z, dest, tag, request)
    implicit none
    complex, dimension (:), intent (in) :: z
    integer, intent (in) :: dest
    integer, intent (in), optional :: tag
    integer, intent (out) :: request
# ifdef MPI
    integer :: ierror
    integer :: tagp
    tagp = 0
    if (present(tag)) tagp = tag
!$OMP MASTER
    call time_message(.false., time_mp_ptp, ' MPI Point-to-point')
!$OMP END MASTER
    call mpi_isend (z, size(z), mpicmplx, dest, tagp, mp_comm, request, ierror)
!$OMP MASTER
    call time_message(.false., time_mp_ptp, ' MPI Point-to-point')
!$OMP END MASTER
# else
    UNUSED_DUMMY(dest) ; UNUSED_DUMMY(tag); UNUSED_DUMMY(z)
    request = 0
# endif
  end subroutine nonblocking_send_complex_array