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# Copyright 2021 The HuggingFace Team. All rights reserved.
#
# 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 ctypes import c_float, sizeof
from enum import Enum
from typing import Any, Dict, Iterable
class ParameterFormat(Enum):
Float = c_float
@property
def size(self) -> int:
"""
Number of byte required for this data type
Returns:
Integer > 0
"""
return sizeof(self.value)
def compute_effective_axis_dimension(dimension: int, fixed_dimension: int, num_token_to_add: int = 0) -> int:
"""
Args:
dimension:
fixed_dimension:
num_token_to_add:
Returns:
"""
# < 0 is possible if using a dynamic axis
if dimension <= 0:
dimension = fixed_dimension
dimension -= num_token_to_add
return dimension
def compute_serialized_parameters_size(num_parameters: int, dtype: ParameterFormat) -> int:
"""
Compute the size taken by all the parameters in the given the storage format when serializing the model
Args:
num_parameters: Number of parameters to be saved
dtype: The data format each parameter will be saved
Returns:
Size (in byte) taken to save all the parameters
"""
return num_parameters * dtype.size
def flatten_output_collection_property(name: str, field: Iterable[Any]) -> Dict[str, Any]:
"""
Flatten any potential nested structure expanding the name of the field with the index of the element within the
structure.
Args:
name: The name of the nested structure
field: The structure to, potentially, be flattened
Returns:
(Dict[str, Any]): Outputs with flattened structure and key mapping this new structure.
"""
from itertools import chain
return {f"{name}.{idx}": item for idx, item in enumerate(chain.from_iterable(field))}
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