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Fix slow model initialization in bfloat16 dtype.

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Former-commit-id: d032daa4bd598dd0d71b43eb68a614de77a699a6
This commit is contained in:
ShaneTian 2023-12-21 21:25:20 +08:00
parent ce79528bb1
commit 3eaabe12aa
1 changed files with 1 additions and 2 deletions
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src/llmtuner/model/loader.py
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@ -67,10 +67,10 @@ def load_model_and_tokenizer(
model = AutoModelForCausalLM.from_pretrained(
model_args.model_name_or_path,
config=config,
torch_dtype=model_args.compute_dtype,
low_cpu_mem_usage=(not is_deepspeed_zero3_enabled()),
**config_kwargs
)
model = model.to(model_args.compute_dtype) if not getattr(model, "quantization_method", None) else model
patcher.patch_model(model)
register_autoclass(config, model, tokenizer)
if not is_deepspeed_zero3_enabled():
@ -95,7 +95,6 @@ def load_model_and_tokenizer(
if not is_trainable:
model.requires_grad_(False) # fix all model params
model = model.to(model_args.compute_dtype) if not getattr(model, "quantization_method", None) else model
model.eval()
else:
model.train()