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# Copyright 2024 the LlamaFactory team.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import TYPE_CHECKING
from ...extras.constants import MOD_SUPPORTED_MODELS
if TYPE_CHECKING:
from transformers import PretrainedConfig, PreTrainedModel
from ...hparams import ModelArguments
def load_mod_pretrained_model(**init_kwargs) -> "PreTrainedModel":
from MoD import AutoMoDModelForCausalLM
return AutoMoDModelForCausalLM.from_pretrained(**init_kwargs)
def convert_pretrained_model_to_mod(
model: "PreTrainedModel", config: "PretrainedConfig", model_args: "ModelArguments"
) -> "PreTrainedModel":
from MoD import apply_mod_to_hf
if getattr(config, "model_type", None) not in MOD_SUPPORTED_MODELS:
raise ValueError("Current model is not supported by mixture-of-depth.")
model = apply_mod_to_hf(model)
model = model.to(model_args.compute_dtype)
return model
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