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# Copyright 2022, Lefebvre Dalloz Services
#
# 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.
"""
Simple to use wrapper to patch transformer models AST
"""
import importlib
import inspect
import logging
from typing import List, Optional
from transformer_deploy.QDQModels.ast_utils import PatchModule, add_quantization_to_model
from transformer_deploy.QDQModels.QDQAlbert import qdq_albert_mapping
from transformer_deploy.QDQModels.QDQBert import qdq_bert_mapping
from transformer_deploy.QDQModels.QDQDeberta import qdq_deberta_mapping, qdq_deberta_v2_mapping
from transformer_deploy.QDQModels.QDQDistilbert import qdq_distilbert_mapping
from transformer_deploy.QDQModels.QDQElectra import qdq_electra_mapping
from transformer_deploy.QDQModels.QDQRoberta import qdq_roberta_mapping
tested_models: List[PatchModule] = [
qdq_bert_mapping,
qdq_roberta_mapping,
qdq_electra_mapping,
qdq_distilbert_mapping,
qdq_albert_mapping,
qdq_deberta_mapping, # quantization is ok, ONNX export doesn't work
qdq_deberta_v2_mapping, # quantization is ok, ONNX export doesn't work
]
def patch_model(patch: PatchModule) -> None:
"""
Perform modifications to model to make it work with ONNX export and quantization.
:param patch: an object containing all the information to perform a modification
"""
add_quantization_to_model(module_path=patch.module, class_to_patch=None)
model_module = importlib.import_module(patch.module)
for target, (modified_object, object_name) in patch.monkey_patch.items():
source_code = inspect.getsource(modified_object)
source_code += f"\n{target} = {object_name}"
exec(source_code, model_module.__dict__, model_module.__dict__)
def add_qdq(modules_to_patch: Optional[List[PatchModule]] = None) -> None:
"""
Add quantization support to each tested model by modifyin their AST.
:param modules_to_patch: list of operator to target
"""
if modules_to_patch is None:
modules_to_patch = tested_models
for patch in modules_to_patch:
logging.info(f"add quantization to module {patch.module}")
patch_model(patch)
def remove_qdq(modules_to_patch: Optional[List[PatchModule]] = None) -> None:
"""
Restore AST of modified modules.
:param modules_to_patch: list of operator to target
"""
if modules_to_patch is None:
modules_to_patch = tested_models
for patch in modules_to_patch:
logging.info(f"restore module {patch.module}")
patch.restore()
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