


'''simple docstring'''



from ....configuration_utils import PretrainedConfig
from ....utils import logging


__A		=logging.get_logger(__name__)

__A		={
    'Visual-Attention-Network/van-base': (
        'https://huggingface.co/Visual-Attention-Network/van-base/blob/main/config.json'
    ),
}


class 						_snake_case   (       a__		):






					"""simple docstring"""




					lowerCAmelCase :Dict						=   '''van'''




					def __init__( self							,							_lowerCamelCase=224							,							_lowerCamelCase=3							,							_lowerCamelCase=[7, 3, 3, 3]							,							_lowerCamelCase=[4, 2, 2, 2]							,							_lowerCamelCase=[64, 128, 320, 512]							,							_lowerCamelCase=[3, 3, 12, 3]							,							_lowerCamelCase=[8, 8, 4, 4]							,							_lowerCamelCase="gelu"							,							_lowerCamelCase=0.02							,							_lowerCamelCase=1e-6							,							_lowerCamelCase=1e-2							,							_lowerCamelCase=0.0							,							_lowerCamelCase=0.0							,							**_lowerCamelCase							,							):
								super().__init__(**_lowerCamelCase)
								UpperCAmelCase__					:   Union[str, Any]       				=       image_size
								UpperCAmelCase__					:   Union[str, Any]       				=       num_channels
								UpperCAmelCase__					:   int       				=       patch_sizes
								UpperCAmelCase__					:   List[str]       				=       strides
								UpperCAmelCase__					:   Union[str, Any]       				=       hidden_sizes
								UpperCAmelCase__					:   List[Any]       				=       depths
								UpperCAmelCase__					:   List[str]       				=       mlp_ratios
								UpperCAmelCase__					:   int       				=       hidden_act
								UpperCAmelCase__					:   int       				=       initializer_range
								UpperCAmelCase__					:   int       				=       layer_norm_eps
								UpperCAmelCase__					:   Union[str, Any]       				=       layer_scale_init_value
								UpperCAmelCase__					:   Optional[int]       				=       drop_path_rate
								UpperCAmelCase__					:   Optional[int]       				=       dropout_rate



'''simple docstring'''



import logging
import os
from typing import Dict, List, Optional, Union

import torch
import torch.nn as nn

from accelerate.utils.imports import (
    is_abit_bnb_available,
    is_abit_bnb_available,
    is_bnb_available,
)

from ..big_modeling import dispatch_model, init_empty_weights
from .dataclasses import BnbQuantizationConfig
from .modeling import (
    find_tied_parameters,
    get_balanced_memory,
    infer_auto_device_map,
    load_checkpoint_in_model,
    offload_weight,
    set_module_tensor_to_device,
)


if is_bnb_available():
		import bitsandbytes as bnb

from copy import deepcopy


__A		=logging.getLogger(__name__)







def       _UpperCamelCase (						UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__ = None	, UpperCamelCase__ = None	, UpperCamelCase__ = None	, UpperCamelCase__ = None	, UpperCamelCase__ = None	, UpperCamelCase__ = False	, ):
			UpperCAmelCase__					:   str       				=       bnb_quantization_config.load_in_abit
			UpperCAmelCase__					:   str       				=       bnb_quantization_config.load_in_abit

			if load_in_abit and not is_abit_bnb_available():
						raise ImportError(
						    """You have a version of `bitsandbytes` that is not compatible with 8bit quantization,"""
						    """ make sure you have the latest version of `bitsandbytes` installed."""   )
			if load_in_abit and not is_abit_bnb_available():
						raise ValueError(
						    """You have a version of `bitsandbytes` that is not compatible with 4bit quantization,"""
						    """make sure you have the latest version of `bitsandbytes` installed."""   )

			UpperCAmelCase__					:   List[Any]       				=       []
			# custom device map
			if isinstance(UpperCamelCase__	, UpperCamelCase__   ) and len(device_map.keys()   ) > 1:
						UpperCAmelCase__					:   Dict       				=       [key for key, value in device_map.items() if value in ["""disk""", """cpu"""]]

			# We keep some modules such as the lm_head in their original dtype for numerical stability reasons
			if bnb_quantization_config.skip_modules is None:
						UpperCAmelCase__					:   Any       				=       get_keys_to_not_convert(UpperCamelCase__   )

			# add cpu modules to skip modules only for 4-bit modules
			if load_in_abit:
						bnb_quantization_config.skip_modules.extend(UpperCamelCase__   )
			UpperCAmelCase__					:   Tuple       				=       bnb_quantization_config.skip_modules

			# We add the modules we want to keep in full precision
			if bnb_quantization_config.keep_in_fpaa_modules is None:
						UpperCAmelCase__					:   List[Any]       				=       []
			UpperCAmelCase__					:   int       				=       bnb_quantization_config.keep_in_fpaa_modules
			modules_to_not_convert.extend(UpperCamelCase__   )

			# compatibility with peft
			UpperCAmelCase__					:   Optional[int]       				=       load_in_abit
			UpperCAmelCase__					:   List[Any]       				=       load_in_abit

			UpperCAmelCase__					:   Dict       				=       get_parameter_device(UpperCamelCase__   )
			if model_device.type != "meta":
						# quantization of an already loaded model
						logger.warning(
						    """It is not recommended to quantize a loaded model. """
						    """The model should be instantiated under the `init_empty_weights` context manager."""   )
						UpperCAmelCase__					:   Optional[int]       				=       replace_with_bnb_layers(UpperCamelCase__	, UpperCamelCase__	, modules_to_not_convert=UpperCamelCase__   )
						# convert param to the right dtype
						UpperCAmelCase__					:   str       				=       bnb_quantization_config.torch_dtype
						for name, param in model.state_dict().items():
									if any(module_to_keep_in_fpaa in name for module_to_keep_in_fpaa in keep_in_fpaa_modules   ):
												param.to(torch.floataa   )
												if param.dtype != torch.floataa:
															UpperCAmelCase__					:   List[str]       				=       name.replace(""".weight"""	, """"""   ).replace(""".bias"""	, """"""   )
															UpperCAmelCase__					:   int       				=       getattr(UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__   )
															if param is not None:
																		param.to(torch.floataa   )
									elif torch.is_floating_point(UpperCamelCase__   ):
												param.to(UpperCamelCase__   )
						if model_device.type == "cuda":
									# move everything to cpu in the first place because we can't do quantization if the weights are already on cuda
									model.cuda(torch.cuda.current_device()   )
									torch.cuda.empty_cache()
						elif torch.cuda.is_available():
									model.to(torch.cuda.current_device()   )
						else:
									raise RuntimeError("""No GPU found. A GPU is needed for quantization."""   )
						logger.info(
						    f'''The model device type is {model_device.type}. However, cuda is needed for quantization.'''
						    """We move the model to cuda."""   )
						return model

			elif weights_location is None:
						raise RuntimeError(
						    f'''`weights_location` needs to be the folder path containing the weights of the model, but we found {weights_location} '''   )

			else:
						with init_empty_weights():
									UpperCAmelCase__					:   Tuple       				=       replace_with_bnb_layers(
									    UpperCamelCase__	, UpperCamelCase__	, modules_to_not_convert=UpperCamelCase__   )

						UpperCAmelCase__					:   Any       				=       get_quantized_model_device_map(
						    UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__	, max_memory=UpperCamelCase__	, no_split_module_classes=UpperCamelCase__	, )
						if offload_state_dict is None and device_map is not None and "disk" in device_map.values():
									UpperCAmelCase__					:   Dict       				=       True

						UpperCAmelCase__					:   Any       				=       any(x in list(device_map.values()   ) for x in ["""cpu""", """disk"""]   )

						load_checkpoint_in_model(
						    UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__	, dtype=bnb_quantization_config.torch_dtype	, offload_folder=UpperCamelCase__	, offload_state_dict=UpperCamelCase__	, keep_in_fpaa_modules=bnb_quantization_config.keep_in_fpaa_modules	, offload_abit_bnb=load_in_abit and offload	, )
						return dispatch_model(UpperCamelCase__	, device_map=UpperCamelCase__	, offload_dir=UpperCamelCase__   )







def       _UpperCamelCase (						UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__=None	, UpperCamelCase__=None	, UpperCamelCase__=None   ):
			if device_map is None:
						if torch.cuda.is_available():
									UpperCAmelCase__					:   Any       				=       {"""""": torch.cuda.current_device()}
						else:
									raise RuntimeError("""No GPU found. A GPU is needed for quantization."""   )
						logger.info("""The device_map was not initialized.""" """Setting device_map to `{'':torch.cuda.current_device()}`."""   )

			if isinstance(UpperCamelCase__	, UpperCamelCase__   ):
						if device_map not in ["auto", "balanced", "balanced_low_0", "sequential"]:
									raise ValueError(
									    """If passing a string for `device_map`, please choose 'auto', 'balanced', 'balanced_low_0' or """
									    """'sequential'."""   )

						UpperCAmelCase__					:   List[Any]       				=       {}
						special_dtypes.update(
						    {
						        name: bnb_quantization_config.torch_dtype
						        for name, _ in model.named_parameters()
						        if any(m in name for m in bnb_quantization_config.skip_modules   )
						    }   )
						special_dtypes.update(
						    {
						        name: torch.floataa
						        for name, _ in model.named_parameters()
						        if any(m in name for m in bnb_quantization_config.keep_in_fpaa_modules   )
						    }   )

						UpperCAmelCase__					:   Optional[Any]       				=       {}
						UpperCAmelCase__					:   Union[str, Any]       				=       special_dtypes
						UpperCAmelCase__					:   Optional[int]       				=       no_split_module_classes
						UpperCAmelCase__					:   Optional[Any]       				=       bnb_quantization_config.target_dtype

						# get max_memory for each device.
						if device_map != "sequential":
									UpperCAmelCase__					:   Optional[int]       				=       get_balanced_memory(
									    UpperCamelCase__	, low_zero=(device_map == """balanced_low_0""")	, max_memory=UpperCamelCase__	, **UpperCamelCase__	, )

						UpperCAmelCase__					:   str       				=       max_memory
						UpperCAmelCase__					:   Any       				=       infer_auto_device_map(UpperCamelCase__	, **UpperCamelCase__   )

			if isinstance(UpperCamelCase__	, UpperCamelCase__   ):
						# check if don't have any quantized module on the cpu
						UpperCAmelCase__					:   Optional[int]       				=       bnb_quantization_config.skip_modules + bnb_quantization_config.keep_in_fpaa_modules

						UpperCAmelCase__					:   List[Any]       				=       {
						    key: device_map[key] for key in device_map.keys() if key not in modules_not_to_convert
						}
						for device in ["cpu", "disk"]:
									if device in device_map_without_some_modules.values():
												if bnb_quantization_config.load_in_abit:
															raise ValueError(
															    """
                        Some modules are dispatched on the CPU or the disk. Make sure you have enough GPU RAM to fit
                        the quantized model. If you want to dispatch the model on the CPU or the disk while keeping
                        these modules in `torch_dtype`, you need to pass a custom `device_map` to
                        `load_and_quantize_model`. Check
                        https://huggingface.co/docs/accelerate/main/en/usage_guides/quantization#offload-modules-to-cpu-and-disk
                        for more details.
                        """   )
												else:
															logger.info(
															    """Some modules are are offloaded to the CPU or the disk. Note that these modules will be converted to 8-bit"""   )
						del device_map_without_some_modules
			return device_map







def       _UpperCamelCase (						UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__=None	, UpperCamelCase__=None   ):

			if modules_to_not_convert is None:
						UpperCAmelCase__					:   Any       				=       []

			UpperCAmelCase__				,    UpperCAmelCase__					:   List[str]       				=       _replace_with_bnb_layers(
			    UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__   )
			if not has_been_replaced:
						logger.warning(
						    """You are loading your model in 8bit or 4bit but no linear modules were found in your model."""
						    """ this can happen for some architectures such as gpt2 that uses Conv1D instead of Linear layers."""
						    """ Please double check your model architecture, or submit an issue on github if you think this is"""
						    """ a bug."""   )
			return model







def       _UpperCamelCase (						UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__=None	, UpperCamelCase__=None	, ):
			UpperCAmelCase__					:   List[str]       				=       False
			for name, module in model.named_children():
						if current_key_name is None:
									UpperCAmelCase__					:   Dict       				=       []
						current_key_name.append(UpperCamelCase__   )
						if isinstance(UpperCamelCase__	, nn.Linear   ) and name not in modules_to_not_convert:
									# Check if the current key is not in the `modules_to_not_convert`
									UpperCAmelCase__					:   List[str]       				=       """.""".join(UpperCamelCase__   )
									UpperCAmelCase__					:   List[Any]       				=       True
									for key in modules_to_not_convert:
												if (
												    (key in current_key_name_str) and (key + "." in current_key_name_str)
												) or key == current_key_name_str:
															UpperCAmelCase__					:   Union[str, Any]       				=       False
															break
									if proceed:
												# Load bnb module with empty weight and replace ``nn.Linear` module
												if bnb_quantization_config.load_in_abit:
															UpperCAmelCase__					:   Optional[Any]       				=       bnb.nn.LinearabitLt(
															    module.in_features	, module.out_features	, module.bias is not None	, has_fpaa_weights=UpperCamelCase__	, threshold=bnb_quantization_config.llm_inta_threshold	, )
												elif bnb_quantization_config.load_in_abit:
															UpperCAmelCase__					:   Dict       				=       bnb.nn.Linearabit(
															    module.in_features	, module.out_features	, module.bias is not None	, bnb_quantization_config.bnb_abit_compute_dtype	, compress_statistics=bnb_quantization_config.bnb_abit_use_double_quant	, quant_type=bnb_quantization_config.bnb_abit_quant_type	, )
												else:
															raise ValueError("""load_in_8bit and load_in_4bit can't be both False"""   )
												UpperCAmelCase__					:   int       				=       module.weight.data
												if module.bias is not None:
															UpperCAmelCase__					:   Dict       				=       module.bias.data
												bnb_module.requires_grad_(UpperCamelCase__   )
												setattr(UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__   )
												UpperCAmelCase__					:   Union[str, Any]       				=       True
						if len(list(module.children()   )   ) > 0:
									UpperCAmelCase__				,    UpperCAmelCase__					:   str       				=       _replace_with_bnb_layers(
									    UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__   )
									UpperCAmelCase__					:   Any       				=       has_been_replaced | _has_been_replaced
						# Remove the last key for recursion
						current_key_name.pop(-1   )
			return model, has_been_replaced







def       _UpperCamelCase (						UpperCamelCase__   ):
			# Create a copy of the model
			with init_empty_weights():
						UpperCAmelCase__					:   Optional[int]       				=       deepcopy(UpperCamelCase__   )  # this has 0 cost since it is done inside `init_empty_weights` context manager`

			UpperCAmelCase__					:   Any       				=       find_tied_parameters(UpperCamelCase__   )
			# For compatibility with Accelerate < 0.18
			if isinstance(UpperCamelCase__	, UpperCamelCase__   ):
						UpperCAmelCase__					:   Optional[Any]       				=       sum(list(tied_params.values()   )	, []   ) + list(tied_params.keys()   )
			else:
						UpperCAmelCase__					:   str       				=       sum(UpperCamelCase__	, []   )
			UpperCAmelCase__					:   int       				=       len(UpperCamelCase__   ) > 0

			# Check if it is a base model
			UpperCAmelCase__					:   int       				=       False
			if hasattr(UpperCamelCase__	, """base_model_prefix"""   ):
						UpperCAmelCase__					:   Tuple       				=       not hasattr(UpperCamelCase__	, model.base_model_prefix   )

			# Ignore this for base models (BertModel, GPT2Model, etc.)
			if (not has_tied_params) and is_base_model:
						return []

			# otherwise they have an attached head
			UpperCAmelCase__					:   Optional[Any]       				=       list(model.named_children()   )
			UpperCAmelCase__					:   int       				=       [list_modules[-1][0]]

			# add last module together with tied weights
			UpperCAmelCase__					:   Optional[int]       				=       set(UpperCamelCase__   ) - set(UpperCamelCase__   )
			UpperCAmelCase__					:   Any       				=       list(set(UpperCamelCase__   )   ) + list(UpperCamelCase__   )

			# remove ".weight" from the keys
			UpperCAmelCase__					:   int       				=       [""".weight""", """.bias"""]
			UpperCAmelCase__					:   str       				=       []
			for name in list_untouched:
						for name_to_remove in names_to_remove:
									if name_to_remove in name:
												UpperCAmelCase__					:   List[Any]       				=       name.replace(UpperCamelCase__	, """"""   )
						filtered_module_names.append(UpperCamelCase__   )

			return filtered_module_names







def       _UpperCamelCase (						UpperCamelCase__   ):
			for m in model.modules():
						if isinstance(UpperCamelCase__	, bnb.nn.Linearabit   ):
									return True
			return False







def       _UpperCamelCase (						UpperCamelCase__   ):
			return next(parameter.parameters()   ).device







def       _UpperCamelCase (						UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__   ):
			# if it is not quantized, we quantize and offload the quantized weights and the SCB stats
			if fpaa_statistics is None:
						set_module_tensor_to_device(UpperCamelCase__	, UpperCamelCase__	, 0	, dtype=UpperCamelCase__	, value=UpperCamelCase__   )
						UpperCAmelCase__					:   Any       				=       param_name
						UpperCAmelCase__					:   Dict       				=       model
						if "." in tensor_name:
									UpperCAmelCase__					:   List[Any]       				=       tensor_name.split("""."""   )
									for split in splits[:-1]:
												UpperCAmelCase__					:   Optional[Any]       				=       getattr(UpperCamelCase__	, UpperCamelCase__   )
												if new_module is None:
															raise ValueError(f'''{module} has no attribute {split}.'''   )
												UpperCAmelCase__					:   List[str]       				=       new_module
									UpperCAmelCase__					:   Dict       				=       splits[-1]
						# offload weights
						UpperCAmelCase__					:   Any       				=       False
						offload_weight(module._parameters[tensor_name]	, UpperCamelCase__	, UpperCamelCase__	, index=UpperCamelCase__   )
						if hasattr(module._parameters[tensor_name]	, """SCB"""   ):
									offload_weight(
									    module._parameters[tensor_name].SCB	, param_name.replace("""weight"""	, """SCB"""   )	, UpperCamelCase__	, index=UpperCamelCase__	, )
			else:
						offload_weight(UpperCamelCase__	, UpperCamelCase__	, UpperCamelCase__	, index=UpperCamelCase__   )
						offload_weight(UpperCamelCase__	, param_name.replace("""weight"""	, """SCB"""   )	, UpperCamelCase__	, index=UpperCamelCase__   )

			set_module_tensor_to_device(UpperCamelCase__	, UpperCamelCase__	, """meta"""	, dtype=UpperCamelCase__	, value=torch.empty(*param.size()   )   )