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Add non-lora PEFT state into intermediate checkpoint saving. #143

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Add non-lora PEFT state into intermediate checkpoint saving. #143

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da927e0
Add non-lora PEFT state into intermediate checkpoint saving.
yophis Dec 23, 2024
82bf47b
Add flow control for lora_enable.
yophis Dec 23, 2024
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17 changes: 17 additions & 0 deletions bunny/train/bunny_trainer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,15 @@ def get_mm_adapter_state_maybe_zero_3(named_params, keys_to_match):
return to_return


def get_peft_state_non_lora_maybe_zero_3(named_params, require_grad_only=True):
"""Returns non-lora peft state."""
to_return = {k: t for k, t in named_params if "lora_" not in k}
if require_grad_only:
to_return = {k: t for k, t in to_return.items() if t.requires_grad}
to_return = {k: maybe_zero_3(v, ignore_status=True).cpu() for k, v in to_return.items()}
return to_return


def split_to_even_chunks(indices, lengths, num_chunks):
"""
Split a list of indices into `chunks` chunks of roughly equal lengths.
Expand Down Expand Up @@ -250,6 +259,14 @@ def _save_checkpoint(self, model, trial, metrics=None):
else:
super(BunnyTrainer, self)._save_checkpoint(model, trial, metrics)

# Save non-lora peft state
if getattr(self.args, 'lora_enable', False):
non_lora_state_dict = get_peft_state_non_lora_maybe_zero_3(
self.model.named_parameters()
)
if self.args.local_rank == 0 or self.args.local_rank == -1:
torch.save(non_lora_state_dict, os.path.join(output_dir, 'non_lora_trainables.bin'))

def _save(self, output_dir: Optional[str] = None, state_dict=None):
if getattr(self.args, 'tune_mm_mlp_adapter', False):
pass
Expand Down