c_get_field_update Subroutine

  subroutine c_get_field_update(self,fq,fqa,fqp)
    use run_parameters, only: has_phi, has_apar, has_bpar
    implicit none
    class(cell_type), intent(inout) :: self
    complex, dimension(self%ncol), intent(in) :: fq,fqa,fqp
    integer :: ifq

    !If we don't have any data then exit
    if(self%is_empty) return

    !First do the multiplication at rowblock level
    ifq=0
    if(has_phi) then
       ifq=ifq+1
       call self%mv_mult_rb(fq,ifq)
    endif
    if(has_apar) then
       ifq=ifq+1
       call self%mv_mult_rb(fqa,ifq)
    endif
    if(has_bpar) then
       ifq=ifq+1
       call self%mv_mult_rb(fqp,ifq)
    endif

    !Now store at cell level
    self%tmp_sum=0
    do ifq=1,self%nrb
       self%tmp_sum(self%rb(ifq)%row_llim:self%rb(ifq)%row_ulim)=&
            self%tmp_sum(self%rb(ifq)%row_llim:self%rb(ifq)%row_ulim)&
            -self%rb(ifq)%tmp_sum
    enddo

  end subroutine c_get_field_update