Simulation Configuration

The Config module contains structs and utility functions for controlling the simulation.

#Exports

• SimulationConfig
• TimeStepOptions
• constant_scale_factor

struct SimulationConfig

Fields

• a::Any: function defining scale factor a(t)

• phase_grad_limit::Float64

• density_threshold::Float64

• time_step_options::Any

struct TimeStepOptions

struct containing options controlling the size and calculation of time steps.

See also: SimulationConfig

Examples

julia> using UltraDark

julia> TimeStepOptions()
TimeStepOptions(10, 1.0)

Fields

• update_period::Int64: controls how many steps are taken before the timestep is updated

• multiplier::Float64: multiplies the calculated maximum time step by a constant

TimeStepOptions(; update_period=10, multiplier=1.0)

constant_scale_factor(t) -> Float64

A function that always returns 1.0, useful for simulations with no background expansion.