The method output_after_run_set() stores the times of a run set in XML.
        @params cputime, walltime: accumulated times of the run set

def output_after_run_set(self, runSet, cputime=None, walltime=None, energy={}):
        """
        The method output_after_run_set() stores the times of a run set in XML.
        @params cputime, walltime: accumulated times of the run set
        """

        self.add_values_to_run_set_xml(runSet, cputime, walltime, energy)

        # write results to files
        self._write_pretty_result_xml_to_file(runSet.xml, runSet.xml_file_name)

        if len(runSet.blocks) > 1:
            for block in runSet.blocks:
                blockFileName = self.get_filename(runSet.name, block.name + ".xml")
                self._write_pretty_result_xml_to_file(
                    self.runs_to_xml(runSet, block.runs, block.name),
                    blockFileName)

        self.txt_file.append(self.run_set_to_text(runSet, True, cputime, walltime, energy))