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""" ChatGLM model configuration """ |
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from transformers.configuration_utils import PretrainedConfig |
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from transformers.utils import logging |
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logger = logging.get_logger(__name__) |
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class ChatGLMConfig(PretrainedConfig): |
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r""" |
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This is the configuration class to store the configuration of a [`~ChatGLMModel`]. |
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It is used to instantiate an ChatGLM model according to the specified arguments, defining the model |
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architecture. Instantiating a configuration with the defaults will yield a similar configuration to that of |
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the ChatGLM-6B [THUDM/ChatGLM-6B](https://huggingface.co/THUDM/chatglm-6b) architecture. |
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Configuration objects inherit from [`PretrainedConfig`] and can be used |
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to control the model outputs. Read the documentation from [`PretrainedConfig`] |
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for more information. |
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Args: |
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vocab_size (`int`, *optional*, defaults to 150528): |
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Vocabulary size of the ChatGLM-6B model. Defines the number of different tokens that can be represented by the |
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`inputs_ids` passed when calling [`~ChatGLMModel`] or |
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[`~TFChatGLMModel`]. |
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hidden_size (`int`, *optional*, defaults to 4096): |
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Dimension of the encoder layers and the pooler layer. |
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num_hidden_layers (`int`, *optional*, defaults to 28): |
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Number of hidden layers in the Transformer encoder. |
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num_attention_heads (`int`, *optional*, defaults to 32): |
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Number of attention heads for each attention layer in the Transformer encoder. |
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inner_hidden_size (`int`, *optional*, defaults to 16384): |
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Dimension of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder. |
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max_sequence_length (`int`, *optional*, defaults to 512): |
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The maximum sequence length that this model might ever be used with. |
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Typically set this to something large just in case (e.g., 512 or 1024 or 2048). |
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layernorm_epsilon (`float`, *optional*, defaults to 1e-5): |
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The epsilon used by the layer normalization layers. |
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use_cache (`bool`, *optional*, defaults to `True`): |
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Whether the model should return the last key/values attentions (not used by all models). |
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Example: |
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```python |
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>>> from configuration_chatglm import ChatGLMConfig |
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>>> from modeling_chatglm import ChatGLMModel |
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>>> # Initializing a ChatGLM-6B THUDM/ChatGLM-6B style configuration |
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>>> configuration = ChatGLMConfig() |
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>>> # Initializing a model from the THUDM/ChatGLM-6B style configuration |
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>>> model = ChatGLMModel(configuration) |
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>>> # Accessing the model configuration |
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>>> configuration = model.config |
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``` |
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""" |
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model_type = "chatglm" |
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def __init__( |
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self, |
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vocab_size=150528, |
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hidden_size=4096, |
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num_layers=28, |
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num_attention_heads=32, |
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layernorm_epsilon=1e-5, |
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use_cache=False, |
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bos_token_id=150004, |
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eos_token_id=150005, |
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pad_token_id=0, |
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max_sequence_length=2048, |
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inner_hidden_size=16384, |
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position_encoding_2d=True, |
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quantization_bit=0, |
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pre_seq_len=None, |
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prefix_projection=False, |
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**kwargs |
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): |
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self.num_layers = num_layers |
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self.vocab_size = vocab_size |
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self.hidden_size = hidden_size |
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self.num_attention_heads = num_attention_heads |
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self.max_sequence_length = max_sequence_length |
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self.layernorm_epsilon = layernorm_epsilon |
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self.inner_hidden_size = inner_hidden_size |
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self.use_cache = use_cache |
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self.bos_token_id = bos_token_id |
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self.eos_token_id = eos_token_id |
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self.pad_token_id = pad_token_id |
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self.position_encoding_2d = position_encoding_2d |
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self.quantization_bit = quantization_bit |
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self.pre_seq_len = pre_seq_len |
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self.prefix_projection = prefix_projection |
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super().__init__( |
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pad_token_id=pad_token_id, |
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bos_token_id=bos_token_id, |
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eos_token_id=eos_token_id, |
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**kwargs |
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) |