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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, Sequence
import torch
from transformers.integrations import is_deepspeed_zero3_enabled
from transformers.utils.versions import require_version
if TYPE_CHECKING:
from transformers import PretrainedConfig, PreTrainedModel
from ...hparams import ModelArguments
def _set_z3_leaf_modules(model: "PreTrainedModel", leaf_modules: Sequence["torch.nn.Module"]) -> None:
require_version("deepspeed>=0.13.0", "To fix: pip install deepspeed>=0.13.0")
from deepspeed.utils import set_z3_leaf_modules # type: ignore
set_z3_leaf_modules(model, leaf_modules)
def add_z3_leaf_module(model: "PreTrainedModel") -> None:
r"""
Sets module as a leaf module to skip partitioning in deepspeed zero3.
"""
if not is_deepspeed_zero3_enabled():
return
if getattr(model.config, "model_type", None) == "dbrx":
from transformers.models.dbrx.modeling_dbrx import DbrxFFN
_set_z3_leaf_modules(model, [DbrxFFN])
if getattr(model.config, "model_type", None) == "jamba":
from transformers.models.jamba.modeling_jamba import JambaSparseMoeBlock
_set_z3_leaf_modules(model, [JambaSparseMoeBlock])
if getattr(model.config, "model_type", None) == "jetmoe":
from transformers.models.jetmoe.modeling_jetmoe import JetMoeMoA, JetMoeMoE
_set_z3_leaf_modules(model, [JetMoeMoA, JetMoeMoE])
if getattr(model.config, "model_type", None) == "mixtral":
from transformers.models.mixtral.modeling_mixtral import MixtralSparseMoeBlock
_set_z3_leaf_modules(model, [MixtralSparseMoeBlock])
if getattr(model.config, "model_type", None) == "qwen2moe":
from transformers.models.qwen2_moe.modeling_qwen2_moe import Qwen2MoeSparseMoeBlock
_set_z3_leaf_modules(model, [Qwen2MoeSparseMoeBlock])
def configure_moe(config: "PretrainedConfig", model_args: "ModelArguments", is_trainable: bool) -> None:
if model_args.moe_aux_loss_coef is not None:
if getattr(config, "model_type", None) in ["jamba", "mixtral", "qwen2_moe"]:
setattr(config, "router_aux_loss_coef", model_args.moe_aux_loss_coef)
elif getattr(config, "model_type", None) == "deepseek":
setattr(config, "aux_loss_alpha", model_args.moe_aux_loss_coef)
elif getattr(config, "model_type", None) == "jetmoe":
setattr(config, "aux_loss_coef", model_args.moe_aux_loss_coef)
if getattr(config, "model_type", None) in ["dbrx", "jamba", "jetmoe", "mixtral", "qwen2_moe"]:
setattr(config, "output_router_logits", is_trainable)
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