pyvene.models.backpack_gpt2.modelings_backpack_gpt2.BackpackGPT2PreTrainedModel

class BackpackGPT2PreTrainedModel(*inputs, **kwargs)

Bases: GPT2PreTrainedModel

An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained models.

__init__(*inputs, **kwargs)

Args:

Methods

__init__(*inputs, **kwargs)	Args:
active_adapter()
active_adapters()	If you are not familiar with adapters and PEFT methods, we invite you to read more about them on the PEFT official documentation: https://huggingface.co/docs/peft
add_adapter(adapter_config[, adapter_name])	If you are not familiar with adapters and PEFT methods, we invite you to read more about them on the PEFT official documentation: https://huggingface.co/docs/peft
add_memory_hooks()	Add a memory hook before and after each sub-module forward pass to record increase in memory consumption.
add_model_tags(tags)	Add custom tags into the model that gets pushed to the Hugging Face Hub.
add_module(name, module)	Add a child module to the current module.
apply(fn)	Apply fn recursively to every submodule (as returned by .children()) as well as self.
bfloat16()	Casts all floating point parameters and buffers to bfloat16 datatype.
buffers([recurse])	Return an iterator over module buffers.
can_generate()	Returns whether this model can generate sequences with .generate() from the GenerationMixin.
children()	Return an iterator over immediate children modules.
compile(*args, **kwargs)	Compile this Module's forward using torch.compile().
cpu()	Move all model parameters and buffers to the CPU.
create_extended_attention_mask_for_decoder(...)
cuda([device])	Move all model parameters and buffers to the GPU.
delete_adapter(adapter_names)	Delete an adapter's LoRA layers from the underlying model.
dequantize()	Potentially dequantize the model in case it has been quantized by a quantization method that support dequantization.
disable_adapters()	If you are not familiar with adapters and PEFT methods, we invite you to read more about them on the PEFT official documentation: https://huggingface.co/docs/peft
disable_input_require_grads()	Removes the _require_grads_hook.
double()	Casts all floating point parameters and buffers to double datatype.
enable_adapters()	If you are not familiar with adapters and PEFT methods, we invite you to read more about them on the PEFT official documentation: https://huggingface.co/docs/peft
enable_input_require_grads()	Enables the gradients for the input embeddings.
estimate_tokens(input_dict)	Helper function to estimate the total number of tokens from the model inputs.
eval()	Set the module in evaluation mode.
extra_repr()	Return the extra representation of the module.
float(*args)	Casts all floating point parameters and buffers to float datatype.
floating_point_ops(input_dict[, ...])	Get number of (optionally, non-embeddings) floating-point operations for the forward and backward passes of a batch with this transformer model.
forward(*input)	Define the computation performed at every call.
from_pretrained(...[, config, cache_dir, ...])	Instantiate a pretrained pytorch model from a pre-trained model configuration.
get_adapter_state_dict([adapter_name, ...])	If you are not familiar with adapters and PEFT methods, we invite you to read more about them on the PEFT official documentation: https://huggingface.co/docs/peft
get_buffer(target)	Return the buffer given by target if it exists, otherwise throw an error.
get_compiled_call(compile_config)	Return a torch.compile'd version of self.__call__.
get_correct_attn_implementation(...[, ...])
get_decoder()	Best-effort lookup of the decoder module.
get_extended_attention_mask(attention_mask, ...)	Makes broadcastable attention and causal masks so that future and masked tokens are ignored.
get_extra_state()	Return any extra state to include in the module's state_dict.
get_head_mask(head_mask, num_hidden_layers)	Prepare the head mask if needed.
get_init_context(is_quantized, ...)
get_input_embeddings()	Returns the model's input embeddings.
get_memory_footprint([return_buffers])	Get the memory footprint of a model.
get_output_embeddings()
get_parameter(target)	Return the parameter given by target if it exists, otherwise throw an error.
get_parameter_or_buffer(target)	Return the parameter or buffer given by target if it exists, otherwise throw an error.
get_position_embeddings()
get_submodule(target)	Return the submodule given by target if it exists, otherwise throw an error.
gradient_checkpointing_disable()	Deactivates gradient checkpointing for the current model.
gradient_checkpointing_enable([...])	Activates gradient checkpointing for the current model.
half(*args)	Casts all floating point parameters and buffers to half datatype.
init_weights()	If needed prunes and maybe initializes weights.
initialize_weights()	This is equivalent to calling self.apply(self._initialize_weights), but correctly handles composite models.
invert_attention_mask(encoder_attention_mask)	Invert an attention mask (e.g., switches 0.
ipu([device])	Move all model parameters and buffers to the IPU.
is_backend_compatible()
load_adapter([peft_model_id, adapter_name, ...])	Load adapter weights from file or remote Hub folder.
load_state_dict(state_dict[, strict, assign])	Copy parameters and buffers from state_dict into this module and its descendants.
load_tf_weights(config, gpt2_checkpoint_path)	Load tf checkpoints in a pytorch model
modules()	Return an iterator over all modules in the network.
mtia([device])	Move all model parameters and buffers to the MTIA.
named_buffers([prefix, recurse, ...])	Return an iterator over module buffers, yielding both the name of the buffer as well as the buffer itself.
named_children()	Return an iterator over immediate children modules, yielding both the name of the module as well as the module itself.
named_modules([memo, prefix, remove_duplicate])	Return an iterator over all modules in the network, yielding both the name of the module as well as the module itself.
named_parameters([prefix, recurse, ...])	Return an iterator over module parameters, yielding both the name of the parameter as well as the parameter itself.
num_parameters([only_trainable, ...])	Get number of (optionally, trainable or non-embeddings) parameters in the module.
parameters([recurse])	Return an iterator over module parameters.
post_init()	A method executed at the end of each Transformer model initialization, to execute code that needs the model's modules properly initialized (such as weight initialization).
prune_heads(heads_to_prune)	Prunes heads of the base model.
push_to_hub(repo_id[, use_temp_dir, ...])	Upload the model file to the 🤗 Model Hub.
register_backward_hook(hook)	Register a backward hook on the module.
register_buffer(name, tensor[, persistent])	Add a buffer to the module.
register_for_auto_class([auto_class])	Register this class with a given auto class.
register_forward_hook(hook, *[, prepend, ...])	Register a forward hook on the module.
register_forward_pre_hook(hook, *[, ...])	Register a forward pre-hook on the module.
register_full_backward_hook(hook[, prepend])	Register a backward hook on the module.
register_full_backward_pre_hook(hook[, prepend])	Register a backward pre-hook on the module.
register_load_state_dict_post_hook(hook)	Register a post-hook to be run after module's load_state_dict() is called.
register_load_state_dict_pre_hook(hook)	Register a pre-hook to be run before module's load_state_dict() is called.
register_module(name, module)	Alias for add_module().
register_parameter(name, param)	Add a parameter to the module.
register_state_dict_post_hook(hook)	Register a post-hook for the state_dict() method.
register_state_dict_pre_hook(hook)	Register a pre-hook for the state_dict() method.
requires_grad_([requires_grad])	Change if autograd should record operations on parameters in this module.
reset_memory_hooks_state()	Reset the mem_rss_diff attribute of each module (see [~modeling_utils.ModuleUtilsMixin.add_memory_hooks]).
resize_position_embeddings(...)
resize_token_embeddings([new_num_tokens, ...])	Resizes input token embeddings matrix of the model if new_num_tokens != config.vocab_size.
retrieve_modules_from_names(names[, ...])
reverse_bettertransformer()	Reverts the transformation from [~PreTrainedModel.to_bettertransformer] so that the original modeling is used, for example in order to save the model.
save_pretrained(save_directory[, ...])	Save a model and its configuration file to a directory, so that it can be re-loaded using the [~PreTrainedModel.from_pretrained] class method.
set_adapter(adapter_name)	If you are not familiar with adapters and PEFT methods, we invite you to read more about them on the PEFT official documentation: https://huggingface.co/docs/peft
set_attn_implementation(attn_implementation)	Set the requested attn_implementation for this model.
set_decoder(decoder)	Symmetric setter.
set_extra_state(state)	Set extra state contained in the loaded state_dict.
set_input_embeddings(value)	Fallback setter that handles ~70 % of models in the code‑base.
set_output_embeddings(new_embeddings)	Sets the model's output embedding, defaulting to setting new_embeddings to lm_head.
set_submodule(target, module[, strict])	Set the submodule given by target if it exists, otherwise throw an error.
share_memory()	See torch.Tensor.share_memory_().
state_dict(*args[, destination, prefix, ...])	Return a dictionary containing references to the whole state of the module.
tie_embeddings_and_encoder_decoder()	If set in the config, tie the weights between the input embeddings and the output embeddings, and the encoder and decoder.
tie_weights()	Recursively (for all submodels) tie all the weights of the model.
to(*args, **kwargs)	Move and/or cast the parameters and buffers.
to_bettertransformer()	Converts the model to use [PyTorch's native attention implementation](https://pytorch.org/docs/stable/generated/torch.nn.MultiheadAttention.html), integrated to Transformers through [Optimum library](https://huggingface.co/docs/optimum/bettertransformer/overview).
to_empty(*, device[, recurse])	Move the parameters and buffers to the specified device without copying storage.
train([mode])	Set the module in training mode.
type(dst_type)	Casts all parameters and buffers to dst_type.
warn_if_padding_and_no_attention_mask(...)	Shows a one-time warning if the input_ids appear to contain padding and no attention mask was given.
xpu([device])	Move all model parameters and buffers to the XPU.
zero_grad([set_to_none])	Reset gradients of all model parameters.

Attributes

T_destination
base_model	torch.nn.Module: The main body of the model.
base_model_prefix
call_super_init
can_record_outputs	Maps output names (e.g., "attentions", "hidden_states")
device	torch.device: The device on which the module is (assuming that all the module parameters are on the same device).
dtype	torch.dtype: The dtype of the module (assuming that all the module parameters have the same dtype).
dummy_inputs	dict[str, torch.Tensor]: Dummy inputs to do a forward pass in the network.
dump_patches
framework	str: Identifies that this is a PyTorch model.
is_gradient_checkpointing	Whether gradient checkpointing is activated for this model or not.
is_parallelizable
loss_function
main_input_name
model_tags
pp_plan
supports_gradient_checkpointing
supports_pp_plan
supports_tp_plan	Returns whether the model has a tensor parallelism plan.
tp_plan	The full tp plan for the model's modules
tp_size	Returns the model's tensor parallelism degree.
config
training

config_class

alias of BackpackGPT2Config