torchrl.trainers.algorithms.configs.objectives.SACLossConfig

class torchrl.trainers.algorithms.configs.objectives.SACLossConfig(_partial_: bool = False, actor_network: Any = None, qvalue_network: Any = None, value_network: Any = None, discrete: bool = False, action_space: Any = None, num_actions: int | None = None, num_qvalue_nets: int = 2, loss_function: str = 'smooth_l1', alpha_init: float = 1.0, min_alpha: float | None = None, max_alpha: float | None = None, action_spec: Any = None, fixed_alpha: bool = False, target_entropy: str | float = 'auto', target_entropy_weight: float = 0.98, delay_actor: bool = False, delay_qvalue: bool = True, delay_value: bool = True, gamma: float | None = None, priority_key: str | None = None, separate_losses: bool = False, reduction: str | None = None, skip_done_states: bool = False, deactivate_vmap: bool = False, use_prioritized_weights: str | bool = 'auto', scalar_output_mode: str | None = None, _target_: str = 'torchrl.trainers.algorithms.configs.objectives._make_sac_loss')

Hydra configuration for SACLoss (and DiscreteSACLoss when discrete=True).

Every kwarg accepted by SACLoss.__init__ is exposed as a field here. The discrete/action_space/num_actions/target_entropy_weight fields apply only when the discrete variant is selected.