update trial's latest result with its sequence number, e.g., epoch number or batch number
        
        Parameters
        ----------
        i: int
            the ith round
        parameter_id: int
            the id of the trial/parameter
        seq: int
            sequence number, e.g., epoch number or batch number
        value: int
            latest result with sequence number seq

        Returns
        -------
        None

def set_config_perf(self, i, parameter_id, seq, value):
        """update trial's latest result with its sequence number, e.g., epoch number or batch number
        
        Parameters
        ----------
        i: int
            the ith round
        parameter_id: int
            the id of the trial/parameter
        seq: int
            sequence number, e.g., epoch number or batch number
        value: int
            latest result with sequence number seq

        Returns
        -------
        None
        """
        if parameter_id in self.configs_perf[i]:
            if self.configs_perf[i][parameter_id][0] < seq:
                self.configs_perf[i][parameter_id] = [seq, value]
        else:
            self.configs_perf[i][parameter_id] = [seq, value]