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fix generation bug #532

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Former-commit-id: c071121e67374e5f09798db57cfc8668617a36ae
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hiyouga
2023-08-17 22:21:34 +08:00
parent e993e717a5
commit fa1893b59c
5 changed files with 15 additions and 46 deletions
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5
src/llmtuner/tuner/ppo/trainer.py
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@@ -10,7 +10,7 @@ from trl import PPOTrainer
from trl.core import LengthSampler
from llmtuner.extras.logging import get_logger
from llmtuner.extras.misc import AverageMeter, count_parameters, get_logits_processor, get_stopping_criteria
from llmtuner.extras.misc import AverageMeter, count_parameters, get_logits_processor
from llmtuner.tuner.core.trainer import PeftTrainer
from llmtuner.tuner.ppo.utils import cast_layernorm_dtype, replace_model
@@ -74,10 +74,9 @@ class PPOPeftTrainer(PPOTrainer, PeftTrainer):
# Keyword arguments for `model.generate`
gen_kwargs = self.generating_args.to_dict()
gen_kwargs["eos_token_id"] = self.tokenizer.eos_token_id
gen_kwargs["eos_token_id"] = [self.tokenizer.eos_token_id] + self.tokenizer.additional_special_tokens_ids
gen_kwargs["pad_token_id"] = self.tokenizer.pad_token_id
gen_kwargs["logits_processor"] = get_logits_processor()
gen_kwargs["stopping_criteria"] = get_stopping_criteria(self.tokenizer.additional_special_tokens_ids)
length_sampler = LengthSampler(max_target_length // 2, max_target_length)
unwrapped_model: "AutoModelForCausalLMWithValueHead" = self.accelerator.unwrap_model(self.model)