if ( from == 0 )
      name_n = ['node_results.tmp'];
    else
      if ( from < 10 )
        name_n = ['node_results_00', int2str(from), '.tmp'];
      elseif ( from < 100 )
        name_n = ['node_results_0', int2str(from), '.tmp'];
      else
        name_n = ['node_results_', int2str(from), '.tmp'];
      end % if
    end % if