smac.initial_design.initial_design

Classes

InitialDesign(cs, rng, traj_logger, ta_run_limit)

Base class for initial design strategies that evaluates multiple configurations.
class smac.initial_design.initial_design.InitialDesign(cs, rng, traj_logger, ta_run_limit, configs=None, n_configs_x_params=10, max_config_fracs=0.25, init_budget=None)[source]

Bases: object

Base class for initial design strategies that evaluates multiple configurations.

Parameters

  • cs (ConfigurationSpace) – configuration space object

  • rng (np.random.RandomState) – Random state

  • traj_logger (TrajLogger) – Trajectory logging to add new incumbents found by the initial design.

  • ta_run_limit (int) – Number of iterations allowed for the target algorithm

  • configs (Optional[List[Configuration]]) – List of initial configurations. Disables the arguments n_configs_x_params if given. Either this, or n_configs_x_params or init_budget must be provided.

  • n_configs_x_params (int) – how many configurations will be used at most in the initial design (X*D). Either this, or init_budget or configs must be provided. Disables the argument n_configs_x_params if given.

  • max_config_fracs (float) – use at most X*budget in the initial design. Not active if a time limit is given.

  • init_budget (int, optional) – Maximal initial budget (disables the arguments n_configs_x_params and configs if both are given). Either this, or n_configs_x_params or configs must be provided.

cs
Type

ConfigurationSpace

configs

List of configurations to be evaluated

Type

List[Configuration]

select_configurations()[source]

Selects the initial configurations.

Return type

List[Configuration]

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