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- # This file was automatically generated from src/transformers/models/gemma/modular_gemma.py.
- # Do NOT edit this file manually as any edits will be overwritten by the generation of
- # the file from the modular. If any change should be done, please apply the change to the
- # modular_gemma.py file directly. One of our CI enforces this.
- # 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨
- # coding=utf-8
- # Copyright 2024 Google Inc. HuggingFace Inc. 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 ...configuration_utils import PretrainedConfig
- class GemmaConfig(PretrainedConfig):
- r"""
- This is the configuration class to store the configuration of a [`GemmaModel`]. It is used to instantiate an Gemma
- model according to the specified arguments, defining the model architecture. Instantiating a configuration with the
- defaults will yield a similar configuration to that of the Gemma-7B.
- e.g. [google/gemma-7b](https://huggingface.co/google/gemma-7b)
- Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
- documentation from [`PretrainedConfig`] for more information.
- Args:
- vocab_size (`int`, *optional*, defaults to 256000):
- Vocabulary size of the Gemma model. Defines the number of different tokens that can be represented by the
- `inputs_ids` passed when calling [`GemmaModel`]
- hidden_size (`int`, *optional*, defaults to 3072):
- Dimension of the hidden representations.
- intermediate_size (`int`, *optional*, defaults to 24576):
- Dimension of the MLP representations.
- num_hidden_layers (`int`, *optional*, defaults to 28):
- Number of hidden layers in the Transformer decoder.
- num_attention_heads (`int`, *optional*, defaults to 16):
- Number of attention heads for each attention layer in the Transformer decoder.
- num_key_value_heads (`int`, *optional*, defaults to 16):
- This is the number of key_value heads that should be used to implement Grouped Query Attention. If
- `num_key_value_heads=num_attention_heads`, the model will use Multi Head Attention (MHA), if
- `num_key_value_heads=1` the model will use Multi Query Attention (MQA) otherwise GQA is used. When
- converting a multi-head checkpoint to a GQA checkpoint, each group key and value head should be constructed
- by meanpooling all the original heads within that group. For more details, check out [this
- paper](https://huggingface.co/papers/2305.13245). If it is not specified, will default to
- `num_attention_heads`.
- head_dim (`int`, *optional*, defaults to 256):
- The attention head dimension.
- hidden_act (`str` or `function`, *optional*, defaults to `"gelu_pytorch_tanh"`):
- The legacy activation function. It is overwritten by the `hidden_activation`.
- hidden_activation (`str` or `function`, *optional*):
- The non-linear activation function (function or string) in the decoder. Will default to `"gelu_pytorch_tanh"`
- if not specified. `"gelu_pytorch_tanh"` uses an approximation of the `"gelu"` activation function.
- max_position_embeddings (`int`, *optional*, defaults to 8192):
- The maximum sequence length that this model might ever be used with.
- initializer_range (`float`, *optional*, defaults to 0.02):
- The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
- rms_norm_eps (`float`, *optional*, defaults to 1e-06):
- The epsilon used by the rms normalization layers.
- use_cache (`bool`, *optional*, defaults to `True`):
- Whether or not the model should return the last key/values attentions (not used by all models). Only
- relevant if `config.is_decoder=True`.
- pad_token_id (`int`, *optional*, defaults to 0):
- Padding token id.
- eos_token_id (`int`, *optional*, defaults to 1):
- End of stream token id.
- bos_token_id (`int`, *optional*, defaults to 2):
- Beginning of stream token id.
- tie_word_embeddings (`bool`, *optional*, defaults to `True`):
- Whether to tie weight embeddings
- rope_theta (`float`, *optional*, defaults to 10000.0):
- The base period of the RoPE embeddings.
- attention_bias (`bool`, defaults to `False`, *optional*, defaults to `False`):
- Whether to use a bias in the query, key, value and output projection layers during self-attention.
- attention_dropout (`float`, *optional*, defaults to 0.0):
- The dropout ratio for the attention probabilities.
- ```python
- >>> from transformers import GemmaModel, GemmaConfig
- >>> # Initializing a Gemma gemma-7b style configuration
- >>> configuration = GemmaConfig()
- >>> # Initializing a model from the gemma-7b style configuration
- >>> model = GemmaModel(configuration)
- >>> # Accessing the model configuration
- >>> configuration = model.config
- ```"""
- model_type = "gemma"
- keys_to_ignore_at_inference = ["past_key_values"]
- base_model_tp_plan = {
- "layers.*.self_attn.q_proj": "colwise",
- "layers.*.self_attn.k_proj": "colwise",
- "layers.*.self_attn.v_proj": "colwise",
- "layers.*.self_attn.o_proj": "rowwise",
- "layers.*.mlp.gate_proj": "colwise",
- "layers.*.mlp.up_proj": "colwise",
- "layers.*.mlp.down_proj": "rowwise",
- }
- base_model_pp_plan = {
- "embed_tokens": (["input_ids"], ["inputs_embeds"]),
- "layers": (["hidden_states", "attention_mask"], ["hidden_states"]),
- "norm": (["hidden_states"], ["hidden_states"]),
- }
- def __init__(
- self,
- vocab_size=256000,
- hidden_size=3072,
- intermediate_size=24576,
- num_hidden_layers=28,
- num_attention_heads=16,
- num_key_value_heads=16,
- head_dim=256,
- hidden_act="gelu_pytorch_tanh",
- hidden_activation=None,
- max_position_embeddings=8192,
- initializer_range=0.02,
- rms_norm_eps=1e-6,
- use_cache=True,
- pad_token_id=0,
- eos_token_id=1,
- bos_token_id=2,
- tie_word_embeddings=True,
- rope_theta=10000.0,
- attention_bias=False,
- attention_dropout=0.0,
- **kwargs,
- ):
- self.vocab_size = vocab_size
- self.max_position_embeddings = max_position_embeddings
- self.hidden_size = hidden_size
- self.intermediate_size = intermediate_size
- self.num_hidden_layers = num_hidden_layers
- self.num_attention_heads = num_attention_heads
- self.head_dim = head_dim
- self.num_key_value_heads = num_key_value_heads
- self.hidden_act = hidden_act
- self.hidden_activation = hidden_activation
- self.initializer_range = initializer_range
- self.rms_norm_eps = rms_norm_eps
- self.use_cache = use_cache
- self.rope_theta = rope_theta
- self.attention_bias = attention_bias
- self.attention_dropout = attention_dropout
- super().__init__(
- pad_token_id=pad_token_id,
- bos_token_id=bos_token_id,
- eos_token_id=eos_token_id,
- tie_word_embeddings=tie_word_embeddings,
- **kwargs,
- )
- __all__ = ["GemmaConfig"]
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