xlm.commands.lightning_eval

instantiate_model(cfg, datamodule, tokenizer)

Instantiate and load a model for evaluation.

Supports loading from full checkpoints, model-only checkpoints, or HF Hub. Returns the checkpoint path for the trainer to use.

Parameters:

Name	Type	Description	Default
cfg	DictConfig	Hydra config	required
datamodule	Any	Datamodule	required
tokenizer	Any	Tokenizer	required

Returns:

Type	Description
tuple[Harness, Optional[str]]	Tuple of (lightning_module, ckpt_path) where ckpt_path is passed to trainer