Ejemplo n.º 1
0
    def _calculate_simulation_bounds(self):
        """
        Figure out the starting and stopping time and redshift for the simulation.
        """

        # Convert initial/final redshifts to times.
        if self.cosmological_simulation:
            self.initial_time = self.cosmology.t_from_z(self.initial_redshift)
            self.initial_time.units.registry = self.unit_registry
            self.final_time = self.cosmology.t_from_z(self.final_redshift)
            self.final_time.units.registry = self.unit_registry

        # If not a cosmology simulation, figure out the stopping criteria.
        else:
            if "TimeBegin" in self.parameters:
                self.initial_time = self.quan(self.parameters["TimeBegin"], "code_time")
            else:
                self.initial_time = self.quan(0., "code_time")

            if "TimeMax" in self.parameters:
                self.final_time = self.quan(self.parameters["TimeMax"], "code_time")
            else:
                self.final_time = None
            if "TimeMax" not in self.parameters:
                raise NoStoppingCondition(self.parameter_filename)
Ejemplo n.º 2
0
    def _calculate_simulation_bounds(self):
        """
        Figure out the starting and stopping time and redshift for the simulation.
        """

        if 'StopCycle' in self.parameters:
            self.stop_cycle = self.parameters['StopCycle']

        # Convert initial/final redshifts to times.
        if self.cosmological_simulation:
            self.initial_time = self.cosmology.t_from_z(self.initial_redshift)
            self.initial_time.units.registry = self.unit_registry
            self.final_time = self.cosmology.t_from_z(self.final_redshift)
            self.final_time.units.registry = self.unit_registry

        # If not a cosmology simulation, figure out the stopping criteria.
        else:
            if 'InitialTime' in self.parameters:
                self.initial_time = self.quan(self.parameters['InitialTime'],
                                              "code_time")
            else:
                self.initial_time = self.quan(0., "code_time")

            if 'StopTime' in self.parameters:
                self.final_time = self.quan(self.parameters['StopTime'],
                                            "code_time")
            else:
                self.final_time = None
            if not ('StopTime' in self.parameters
                    or 'StopCycle' in self.parameters):
                raise NoStoppingCondition(self.parameter_filename)
            if self.final_time is None:
                mylog.warning(
                    "Simulation %s has no stop time set, stopping condition " +
                    "will be based only on cycles.", self.parameter_filename)