Upload 13 files
Browse files- config.json +150 -0
- configuration_phi3_v.py +218 -0
- generation_config.json +7 -0
- model-00001-of-00002.safetensors +3 -0
- model-00002-of-00002.safetensors +3 -0
- model.safetensors.index.json +600 -0
- modeling_phi3_v.py +1935 -0
- preprocessor_config.json +21 -0
- processing_phi3_v.py +478 -0
- processor_config.json +6 -0
- special_tokens_map.json +36 -0
- tokenizer.json +0 -0
- tokenizer_config.json +414 -0
config.json
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{
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"_name_or_path": "/home/hu381/Phi-3CookBook/code/04.Finetuning/vision_finetuning/output_250k",
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"architectures": [
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"Phi3VForCausalLM"
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],
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"attention_dropout": 0.0,
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"auto_map": {
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"AutoConfig": "configuration_phi3_v.Phi3VConfig",
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"AutoModelForCausalLM": "modeling_phi3_v.Phi3VForCausalLM"
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},
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"bos_token_id": 1,
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"embd_layer": {
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"embedding_cls": "image",
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"hd_transform_order": "sub_glb",
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"projection_cls": "mlp",
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"use_hd_transform": true,
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"with_learnable_separator": true
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},
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"embd_pdrop": 0.0,
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"eos_token_id": 2,
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"hidden_act": "silu",
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"hidden_size": 3072,
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"img_processor": {
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"image_dim_out": 1024,
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"model_name": "openai/clip-vit-large-patch14-336",
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"name": "clip_vision_model",
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"num_img_tokens": 144
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},
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"initializer_range": 0.02,
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"intermediate_size": 8192,
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"max_position_embeddings": 131072,
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"model_type": "phi3_v",
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"num_attention_heads": 32,
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"num_hidden_layers": 32,
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"num_key_value_heads": 32,
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"original_max_position_embeddings": 4096,
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"pad_token_id": 32000,
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"resid_pdrop": 0.0,
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"rms_norm_eps": 1e-05,
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"rope_scaling": {
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"long_factor": [
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],
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"short_factor": [
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1.08,
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1.1,
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],
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"type": "su"
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},
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"rope_theta": 10000.0,
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"sliding_window": 262144,
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"tie_word_embeddings": false,
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"torch_dtype": "bfloat16",
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"transformers_version": "4.43.0",
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"use_cache": true,
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"vocab_size": 32064
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}
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configuration_phi3_v.py
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# coding=utf-8
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# Copyright 2024 Microsoft and the HuggingFace Inc. team. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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""" Phi-3-V 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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PHI3V_PRETRAINED_CONFIG_ARCHIVE_MAP = {
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"microsoft/Phi-3-vision-128k-instruct": "https://huggingface.co/microsoft/Phi-3-vision-128k-instruct/resolve/main/config.json",
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"microsoft/Phi-3.5-vision-instruct": "https://huggingface.co/microsoft/Phi-3.5-vision-instruct/resolve/main/config.json",
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}
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class Phi3VConfig(PretrainedConfig):
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r"""
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This is the configuration class to store the configuration of a [`Phi3VModel`]. It is used to instantiate a Phi-3
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model according to the specified arguments, defining the model architecture. Instantiating a configuration with the
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defaults will yield a similar configuration to that of the
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[microsoft/Phi-3-vision-128k-instruct](https://huggingface.co/microsoft/Phi-3-vision-128k-instruct).
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+
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Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
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documentation from [`PretrainedConfig`] for more information.
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+
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Args:
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+
vocab_size (`int`, *optional*, defaults to 32064):
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Vocabulary size of the Phi-3-V model. Defines the number of different tokens that can be represented by the
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`inputs_ids` passed when calling [`Phi3VModel`].
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+
hidden_size (`int`, *optional*, defaults to 3072):
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+
Dimension of the hidden representations.
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+
intermediate_size (`int`, *optional*, defaults to 8192):
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Dimension of the MLP representations.
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+
num_hidden_layers (`int`, *optional*, defaults to 32):
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+
Number of hidden layers in the Transformer decoder.
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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 decoder.
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+
num_key_value_heads (`int`, *optional*):
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+
This is the number of key_value heads that should be used to implement Grouped Query Attention. If
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`num_key_value_heads=num_attention_heads`, the model will use Multi Head Attention (MHA), if
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`num_key_value_heads=1 the model will use Multi Query Attention (MQA) otherwise GQA is used. When
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converting a multi-head checkpoint to a GQA checkpoint, each group key and value head should be constructed
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by meanpooling all the original heads within that group. For more details checkout [this
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paper](https://arxiv.org/pdf/2305.13245.pdf). If it is not specified, will default to
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`num_attention_heads`.
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+
resid_pdrop (`float`, *optional*, defaults to 0.0):
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+
Dropout probability for mlp outputs.
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embd_pdrop (`int`, *optional*, defaults to 0.0):
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The dropout ratio for the embeddings.
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attention_dropout (`float`, *optional*, defaults to 0.0):
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The dropout ratio after computing the attention scores.
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hidden_act (`str` or `function`, *optional*, defaults to `"silu"`):
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The non-linear activation function (function or string) in the decoder.
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max_position_embeddings (`int`, *optional*, defaults to 4096):
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The maximum sequence length that this model might ever be used with.
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original_max_position_embeddings (`int`, *optional*, defaults to 4096):
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The maximum sequence length that this model was trained with. This is used to determine the size of the
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original RoPE embeddings when using long scaling.
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+
initializer_range (`float`, *optional*, defaults to 0.02):
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+
The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
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+
rms_norm_eps (`float`, *optional*, defaults to 1e-05):
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+
The epsilon value used for the RMSNorm.
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+
use_cache (`bool`, *optional*, defaults to `True`):
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+
Whether or not the model should return the last key/values attentions (not used by all models). Only
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relevant if `config.is_decoder=True`. Whether to tie weight embeddings or not.
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tie_word_embeddings (`bool`, *optional*, defaults to `False`):
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Whether to tie weight embeddings
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rope_theta (`float`, *optional*, defaults to 10000.0):
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+
The base period of the RoPE embeddings.
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+
rope_scaling (`dict`, *optional*):
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+
The scaling strategy for the RoPE embeddings. If `None`, no scaling is applied. If a dictionary, it must
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contain the following keys: `type`, `short_factor` and `long_factor`. The `type` must be either `su` or `yarn` and
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the `short_factor` and `long_factor` must be lists of numbers with the same length as the hidden size
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divided by the number of attention heads divided by 2.
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+
bos_token_id (`int`, *optional*, defaults to 1):
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+
The id of the "beginning-of-sequence" token.
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+
eos_token_id (`int`, *optional*, defaults to 32000):
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+
The id of the "end-of-sequence" token.
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+
pad_token_id (`int`, *optional*, defaults to 32000):
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+
The id of the padding token.
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+
sliding_window (`int`, *optional*):
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+
Sliding window attention window size. If `None`, no sliding window is applied.
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+
embd_layer (`str`, *optional*, defaults to `"default"`):
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+
The embedding layer to use. Can be either `"default"` or `"image"`. "default" uses the standard embedding for text.
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+
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+
Example:
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+
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+
```python
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+
>>> from transformers import Phi3VModel, Phi3VConfig
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+
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+
>>> # Initializing a Phi-3-V style configuration
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107 |
+
>>> configuration = Phi3Config.from_pretrained("microsoft/Phi-3-vision-128k-instruct")
|
108 |
+
|
109 |
+
>>> # Initializing a model from the configuration
|
110 |
+
>>> model = Phi3VModel(configuration)
|
111 |
+
|
112 |
+
>>> # Accessing the model configuration
|
113 |
+
>>> configuration = model.config
|
114 |
+
```"""
|
115 |
+
|
116 |
+
model_type = "phi3_v"
|
117 |
+
keys_to_ignore_at_inference = ["past_key_values"]
|
118 |
+
|
119 |
+
def __init__(
|
120 |
+
self,
|
121 |
+
vocab_size=32064,
|
122 |
+
hidden_size=3072,
|
123 |
+
intermediate_size=8192,
|
124 |
+
num_hidden_layers=32,
|
125 |
+
num_attention_heads=32,
|
126 |
+
num_key_value_heads=None,
|
127 |
+
resid_pdrop=0.0,
|
128 |
+
embd_pdrop=0.0,
|
129 |
+
attention_dropout=0.0,
|
130 |
+
hidden_act="silu",
|
131 |
+
max_position_embeddings=4096,
|
132 |
+
original_max_position_embeddings=4096,
|
133 |
+
initializer_range=0.02,
|
134 |
+
rms_norm_eps=1e-5,
|
135 |
+
use_cache=True,
|
136 |
+
tie_word_embeddings=False,
|
137 |
+
rope_theta=10000.0,
|
138 |
+
rope_scaling=None,
|
139 |
+
bos_token_id=1,
|
140 |
+
eos_token_id=32000,
|
141 |
+
pad_token_id=32000,
|
142 |
+
sliding_window=None,
|
143 |
+
embd_layer: str = "default",
|
144 |
+
**kwargs,
|
145 |
+
):
|
146 |
+
self.vocab_size = vocab_size
|
147 |
+
self.hidden_size = hidden_size
|
148 |
+
self.intermediate_size = intermediate_size
|
149 |
+
self.num_hidden_layers = num_hidden_layers
|
150 |
+
self.num_attention_heads = num_attention_heads
|
151 |
+
|
152 |
+
if num_key_value_heads is None:
|
153 |
+
num_key_value_heads = num_attention_heads
|
154 |
+
|
155 |
+
self.num_key_value_heads = num_key_value_heads
|
156 |
+
self.resid_pdrop = resid_pdrop
|
157 |
+
self.embd_pdrop = embd_pdrop
|
158 |
+
self.attention_dropout = attention_dropout
|
159 |
+
self.hidden_act = hidden_act
|
160 |
+
self.max_position_embeddings = max_position_embeddings
|
161 |
+
self.original_max_position_embeddings = original_max_position_embeddings
|
162 |
+
self.initializer_range = initializer_range
|
163 |
+
self.rms_norm_eps = rms_norm_eps
|
164 |
+
self.use_cache = use_cache
|
165 |
+
self.rope_theta = rope_theta
|
166 |
+
self.rope_scaling = rope_scaling
|
167 |
+
self._rope_scaling_validation()
|
168 |
+
self.sliding_window = sliding_window
|
169 |
+
self.embd_layer = embd_layer
|
170 |
+
|
171 |
+
|
172 |
+
super().__init__(
|
173 |
+
bos_token_id=bos_token_id,
|
174 |
+
eos_token_id=eos_token_id,
|
175 |
+
pad_token_id=pad_token_id,
|
176 |
+
tie_word_embeddings=tie_word_embeddings,
|
177 |
+
**kwargs,
|
178 |
+
)
|
179 |
+
|
180 |
+
def _rope_scaling_validation(self):
|
181 |
+
"""
|
182 |
+
Validate the `rope_scaling` configuration.
|
183 |
+
"""
|
184 |
+
if self.rope_scaling is None:
|
185 |
+
return
|
186 |
+
|
187 |
+
if not isinstance(self.rope_scaling, dict) or len(self.rope_scaling) != 3:
|
188 |
+
raise ValueError(
|
189 |
+
"`rope_scaling` must be a dictionary with three fields, `type`, `short_factor` and `long_factor`, "
|
190 |
+
f"got {self.rope_scaling}"
|
191 |
+
)
|
192 |
+
rope_scaling_type = self.rope_scaling.get("type", None)
|
193 |
+
rope_scaling_short_factor = self.rope_scaling.get("short_factor", None)
|
194 |
+
rope_scaling_long_factor = self.rope_scaling.get("long_factor", None)
|
195 |
+
if rope_scaling_type is None or rope_scaling_type not in ["su", "yarn"]:
|
196 |
+
raise ValueError(f"`rope_scaling`'s type field must be one of ['su', 'yarn'], got {rope_scaling_type}")
|
197 |
+
if not (
|
198 |
+
isinstance(rope_scaling_short_factor, list)
|
199 |
+
and all(isinstance(x, (int, float)) for x in rope_scaling_short_factor)
|
200 |
+
):
|
201 |
+
raise ValueError(
|
202 |
+
f"`rope_scaling`'s short_factor field must be a list of numbers, got {rope_scaling_short_factor}"
|
203 |
+
)
|
204 |
+
if not len(rope_scaling_short_factor) == self.hidden_size // self.num_attention_heads // 2:
|
205 |
+
raise ValueError(
|
206 |
+
f"`rope_scaling`'s short_factor field must have length {self.hidden_size // self.num_attention_heads // 2}, got {len(rope_scaling_short_factor)}"
|
207 |
+
)
|
208 |
+
if not (
|
209 |
+
isinstance(rope_scaling_long_factor, list)
|
210 |
+
and all(isinstance(x, (int, float)) for x in rope_scaling_long_factor)
|
211 |
+
):
|
212 |
+
raise ValueError(
|
213 |
+
f"`rope_scaling`'s long_factor field must be a list of numbers, got {rope_scaling_long_factor}"
|
214 |
+
)
|
215 |
+
if not len(rope_scaling_long_factor) == self.hidden_size // self.num_attention_heads // 2:
|
216 |
+
raise ValueError(
|
217 |
+
f"`rope_scaling`'s long_factor field must have length {self.hidden_size // self.num_attention_heads // 2}, got {len(rope_scaling_long_factor)}"
|
218 |
+
)
|
generation_config.json
ADDED
@@ -0,0 +1,7 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
{
|
2 |
+
"_from_model_config": true,
|
3 |
+
"bos_token_id": 1,
|
4 |
+
"eos_token_id": 2,
|
5 |
+
"pad_token_id": 32000,
|
6 |
+
"transformers_version": "4.43.0"
|
7 |
+
}
|
model-00001-of-00002.safetensors
ADDED
@@ -0,0 +1,3 @@
|
|
|
|
|
|
|
|
|
1 |
+
version https://git-lfs.github.com/spec/v1
|
2 |
+
oid sha256:97b69b84aceeb8582654254ef7e74e498e331549935527f872159ac8b1e7b77c
|
3 |
+
size 4971241256
|
model-00002-of-00002.safetensors
ADDED
@@ -0,0 +1,3 @@
|
|
|
|
|
|
|
|
|
1 |
+
version https://git-lfs.github.com/spec/v1
|
2 |
+
oid sha256:67515ee223acdd0ccfad7397103b3c5d74adcd5d7e11c7a560043cc374cbbe9f
|
3 |
+
size 3519090960
|
model.safetensors.index.json
ADDED
@@ -0,0 +1,600 @@
|
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|
|
|
|
|
|
|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
|
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|
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|
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|
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|
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|
|
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|
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|
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|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
|
|
|
|
|
|
|
|
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|
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|
|
|
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|
|
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|
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|
|
|
|
|
|
|
|
|
|
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|
|
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|
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|
|
|
|
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|
|
|
|
|
|
|
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|
|
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|
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|
|
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|
|
|
|
|
|
|
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|
|
|
|
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|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
|
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|
|
|
|
|
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|
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|
|
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|
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|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
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|
|
|
|
|
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|
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|
|
|
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|
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|
|
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|
|
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|
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|
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|
|
|
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|
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|
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|
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|
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|
|
|
|
|
|
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|
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|
|
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|
1 |
+
{
|
2 |
+
"metadata": {
|
3 |
+
"total_size": 8490244096
|
4 |
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},
|
5 |
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|
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modeling_phi3_v.py
ADDED
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1 |
+
# coding=utf-8
|
2 |
+
# Copyright 2024 Microsoft and the HuggingFace Inc. team. All rights reserved.
|
3 |
+
#
|
4 |
+
# Licensed under the Apache License, Version 2.0 (the "License");
|
5 |
+
# you may not use this file except in compliance with the License.
|
6 |
+
# You may obtain a copy of the License at
|
7 |
+
#
|
8 |
+
# http://www.apache.org/licenses/LICENSE-2.0
|
9 |
+
#
|
10 |
+
# Unless required by applicable law or agreed to in writing, software
|
11 |
+
# distributed under the License is distributed on an "AS IS" BASIS,
|
12 |
+
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
13 |
+
# See the License for the specific language governing permissions and
|
14 |
+
# limitations under the License.
|
15 |
+
|
16 |
+
""" PyTorch Phi-3-V model."""
|
17 |
+
|
18 |
+
import inspect
|
19 |
+
import math
|
20 |
+
import warnings
|
21 |
+
from typing import List, Optional, Tuple, Union
|
22 |
+
|
23 |
+
import torch
|
24 |
+
import torch.nn.functional as F
|
25 |
+
import torch.utils.checkpoint
|
26 |
+
from torch import nn
|
27 |
+
from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss
|
28 |
+
|
29 |
+
from transformers.activations import ACT2FN
|
30 |
+
from transformers.cache_utils import Cache, DynamicCache
|
31 |
+
from transformers.modeling_attn_mask_utils import _prepare_4d_causal_attention_mask
|
32 |
+
from transformers.modeling_outputs import (
|
33 |
+
BaseModelOutputWithPast,
|
34 |
+
CausalLMOutputWithPast,
|
35 |
+
SequenceClassifierOutputWithPast,
|
36 |
+
TokenClassifierOutput,
|
37 |
+
)
|
38 |
+
from transformers.modeling_utils import PreTrainedModel
|
39 |
+
from transformers.utils import (
|
40 |
+
add_code_sample_docstrings,
|
41 |
+
add_start_docstrings,
|
42 |
+
add_start_docstrings_to_model_forward,
|
43 |
+
is_flash_attn_greater_or_equal_2_10,
|
44 |
+
logging,
|
45 |
+
replace_return_docstrings,
|
46 |
+
)
|
47 |
+
from .configuration_phi3_v import Phi3VConfig
|
48 |
+
|
49 |
+
try:
|
50 |
+
from flash_attn import flash_attn_func, flash_attn_varlen_func
|
51 |
+
from flash_attn.bert_padding import index_first_axis, pad_input, unpad_input # noqa
|
52 |
+
|
53 |
+
_flash_supports_window_size = "window_size" in list(inspect.signature(flash_attn_func).parameters)
|
54 |
+
except ImportError:
|
55 |
+
pass
|
56 |
+
|
57 |
+
import torch
|
58 |
+
from torch import nn
|
59 |
+
from transformers import CLIPVisionConfig, CLIPVisionModel, PretrainedConfig
|
60 |
+
from transformers.models.clip.modeling_clip import CLIPAttention
|
61 |
+
from transformers.utils import logging
|
62 |
+
|
63 |
+
logger = logging.get_logger(__name__)
|
64 |
+
|
65 |
+
|
66 |
+
MAX_INPUT_ID = int(1e9)
|
67 |
+
|
68 |
+
CLIP_VIT_LARGE_PATCH14_336_CONFIG = CLIPVisionConfig(
|
69 |
+
attention_dropout=0.0,
|
70 |
+
dropout=0.0,
|
71 |
+
hidden_act="quick_gelu",
|
72 |
+
hidden_size=1024,
|
73 |
+
image_size=336,
|
74 |
+
initializer_factor=1.0,
|
75 |
+
initializer_range=0.02,
|
76 |
+
intermediate_size=4096,
|
77 |
+
layer_norm_eps=1e-05,
|
78 |
+
num_attention_heads=16,
|
79 |
+
num_channels=3,
|
80 |
+
num_hidden_layers=24,
|
81 |
+
patch_size=14,
|
82 |
+
projection_dim=768
|
83 |
+
)
|
84 |
+
|
85 |
+
class CLIPAttentionFA2(CLIPAttention):
|
86 |
+
"""Add flash attention 2 to CLIPAttention. (This is only used in the vision encoder)"""
|
87 |
+
|
88 |
+
def forward(self,
|
89 |
+
hidden_states,
|
90 |
+
attention_mask=None,
|
91 |
+
causal_attention_mask=None,
|
92 |
+
output_attentions=False,
|
93 |
+
):
|
94 |
+
"""Input shape: Batch x Time x Channel"""
|
95 |
+
|
96 |
+
assert attention_mask is None, "CLIPAttentionFA2 does not support attention_mask"
|
97 |
+
assert causal_attention_mask is None, "CLIPAttentionFA2 does not support causal_attention_mask"
|
98 |
+
assert output_attentions is False, "CLIPAttentionFA2 does not support output_attentions"
|
99 |
+
|
100 |
+
bsz, tgt_len, embed_dim = hidden_states.size()
|
101 |
+
query_states = self.q_proj(hidden_states).reshape(bsz, tgt_len, self.num_heads, self.head_dim)
|
102 |
+
key_states = self.k_proj(hidden_states).reshape(bsz, tgt_len, self.num_heads, self.head_dim)
|
103 |
+
value_states = self.v_proj(hidden_states).reshape(bsz, tgt_len, self.num_heads, self.head_dim)
|
104 |
+
|
105 |
+
attn_output = flash_attn_func(
|
106 |
+
query_states,
|
107 |
+
key_states,
|
108 |
+
value_states,
|
109 |
+
dropout_p=self.dropout if self.training else 0.0,
|
110 |
+
softmax_scale=self.scale,
|
111 |
+
causal=False,
|
112 |
+
).reshape(bsz, tgt_len, embed_dim)
|
113 |
+
|
114 |
+
attn_output = self.out_proj(attn_output)
|
115 |
+
return attn_output, None
|
116 |
+
|
117 |
+
|
118 |
+
class Phi3ImageEmbedding(nn.Module):
|
119 |
+
"""Phi3 Image embedding."""
|
120 |
+
|
121 |
+
def __init__(self, config: PretrainedConfig, wte=None, **kwargs) -> None:
|
122 |
+
super().__init__()
|
123 |
+
|
124 |
+
# n_embed or hidden_size
|
125 |
+
hidden_size = config.n_embd if hasattr(config, 'n_embd') else config.hidden_size
|
126 |
+
if hasattr(config, 'embd_pdrop') or hasattr(config, 'embed_pdrop'):
|
127 |
+
embd_drop = config.embd_pdrop if hasattr(config, 'embd_pdrop') else config.embed_pdrop
|
128 |
+
self.drop = nn.Dropout(embd_drop)
|
129 |
+
else:
|
130 |
+
self.drop = None
|
131 |
+
|
132 |
+
self.wte = wte
|
133 |
+
|
134 |
+
if isinstance(config.img_processor, dict) and config.img_processor.get('name', None) == 'clip_vision_model':
|
135 |
+
assert 'model_name' in config.img_processor, 'model_name must be provided for CLIPVisionModel'
|
136 |
+
assert 'image_dim_out' in config.img_processor, 'image_dim_out must be provided for CLIPVisionModel'
|
137 |
+
assert 'num_img_tokens' in config.img_processor, 'num_img_tokens must be provided for CLIPVisionModel'
|
138 |
+
assert config.img_processor['model_name'] == 'openai/clip-vit-large-patch14-336'
|
139 |
+
clip_config = CLIP_VIT_LARGE_PATCH14_336_CONFIG
|
140 |
+
self.img_processor = CLIPVisionModel(clip_config)
|
141 |
+
image_dim_out = config.img_processor['image_dim_out']
|
142 |
+
self.num_img_tokens = config.img_processor['num_img_tokens']
|
143 |
+
|
144 |
+
# FA2 in CLIP
|
145 |
+
if config._attn_implementation == 'flash_attention_2':
|
146 |
+
for layer in self.img_processor.vision_model.encoder.layers:
|
147 |
+
clip_fa2 = CLIPAttentionFA2(clip_config)
|
148 |
+
del layer.self_attn
|
149 |
+
layer.self_attn = clip_fa2
|
150 |
+
else:
|
151 |
+
raise NotImplementedError(f'img_processor = {config.img_processor}, not implemented')
|
152 |
+
|
153 |
+
self.image_dim_out = image_dim_out
|
154 |
+
self.img_sizes = None
|
155 |
+
|
156 |
+
# global_gn and sub_gn for hd transform, serves as line separator
|
157 |
+
self.use_hd_transform = kwargs.get('use_hd_transform', False)
|
158 |
+
self.with_learnable_separator = kwargs.get('with_learnable_separator', False)
|
159 |
+
self.hd_transform_order = kwargs.get('hd_transform_order', 'glb_sub')
|
160 |
+
# with_hd_transform and with_learnable_separator should have same value
|
161 |
+
assert self.use_hd_transform == self.with_learnable_separator, 'use_hd_transform and with_learnable_separator should have same value'
|
162 |
+
if self.with_learnable_separator:
|
163 |
+
assert self.use_hd_transform, 'learnable separator is only for hd transform'
|
164 |
+
# 1024 * 4, merge spatial to channel dimension
|
165 |
+
self.glb_GN = nn.Parameter(torch.zeros([1, 1, self.image_dim_out * 4]))
|
166 |
+
self.sub_GN = nn.Parameter(torch.zeros([1, 1, 1, self.image_dim_out * 4]))
|
167 |
+
logger.info(f'learnable separator enabled for hd transform, hd_transform_order = {self.hd_transform_order}')
|
168 |
+
|
169 |
+
projection_cls = kwargs.get('projection_cls', 'linear')
|
170 |
+
if projection_cls == 'linear':
|
171 |
+
self.img_projection = nn.Linear(image_dim_out, hidden_size)
|
172 |
+
elif projection_cls == 'mlp' and self.use_hd_transform:
|
173 |
+
dim_projection = hidden_size
|
174 |
+
depth = 2
|
175 |
+
layers = [nn.Linear(image_dim_out * 4, dim_projection)]
|
176 |
+
for _ in range(1, depth):
|
177 |
+
layers.extend([nn.GELU(),
|
178 |
+
nn.Linear(dim_projection, dim_projection)])
|
179 |
+
self.img_projection = nn.Sequential(*layers)
|
180 |
+
elif projection_cls == 'mlp':
|
181 |
+
dim_projection = hidden_size
|
182 |
+
depth = 2
|
183 |
+
layers = [nn.Linear(image_dim_out, dim_projection)]
|
184 |
+
for _ in range(1, depth):
|
185 |
+
layers.extend([nn.GELU(),
|
186 |
+
nn.Linear(dim_projection, dim_projection)])
|
187 |
+
self.img_projection = nn.Sequential(*layers)
|
188 |
+
else:
|
189 |
+
raise NotImplementedError(f'projection_cls = {projection_cls}, not implemented')
|
190 |
+
|
191 |
+
self.vocab_size = config.vocab_size
|
192 |
+
self.img_features = None
|
193 |
+
|
194 |
+
if isinstance(config.img_processor, dict):
|
195 |
+
self.layer_idx = config.img_processor.get('layer_idx', -2)
|
196 |
+
self.type_feature = config.img_processor.get('type_feature', 'patch')
|
197 |
+
else:
|
198 |
+
self.layer_idx = -2
|
199 |
+
self.type_feature = 'patch'
|
200 |
+
|
201 |
+
|
202 |
+
def set_img_features(self, img_features: torch.FloatTensor) -> None:
|
203 |
+
self.img_features = img_features
|
204 |
+
|
205 |
+
def set_img_sizes(self, img_sizes: torch.LongTensor) -> None:
|
206 |
+
self.img_sizes = img_sizes
|
207 |
+
|
208 |
+
def get_img_features(self, img_embeds: torch.FloatTensor) -> torch.FloatTensor:
|
209 |
+
LAYER_IDX = self.layer_idx
|
210 |
+
TYPE_FEATURE = self.type_feature
|
211 |
+
|
212 |
+
img_processor_output = self.img_processor(img_embeds, output_hidden_states=True)
|
213 |
+
img_feature = img_processor_output.hidden_states[LAYER_IDX]
|
214 |
+
|
215 |
+
if TYPE_FEATURE == "patch":
|
216 |
+
patch_feature = img_feature[:, 1:]
|
217 |
+
return patch_feature
|
218 |
+
|
219 |
+
raise NotImplementedError
|
220 |
+
|
221 |
+
def forward(
|
222 |
+
self, input_ids: torch.LongTensor, pixel_values: torch.FloatTensor, image_sizes=None
|
223 |
+
) -> torch.FloatTensor:
|
224 |
+
input_shape = input_ids.size()
|
225 |
+
input_ids = input_ids.view(-1, input_shape[-1])
|
226 |
+
|
227 |
+
# positions for image tokens
|
228 |
+
positions = torch.nonzero((input_ids < 0) & (input_ids > -MAX_INPUT_ID), as_tuple=True)
|
229 |
+
has_image = len(positions[0].tolist()) > 0
|
230 |
+
input_ids = input_ids.clamp_min(0).clamp_max(self.vocab_size).detach()
|
231 |
+
hidden_states = self.wte(input_ids)
|
232 |
+
|
233 |
+
if has_image:
|
234 |
+
assert self.use_hd_transform
|
235 |
+
num_images, num_crops, c, h, w = pixel_values.shape
|
236 |
+
assert c == 3 and h == w == 336
|
237 |
+
img_features = self.get_img_features(pixel_values.flatten(0, 1)).reshape(
|
238 |
+
num_images, num_crops, -1, self.image_dim_out
|
239 |
+
)
|
240 |
+
image_features_proj = self.hd_feature_transform(img_features, image_sizes)
|
241 |
+
hidden_states = hidden_states.index_put(
|
242 |
+
positions, image_features_proj, accumulate=False
|
243 |
+
)
|
244 |
+
|
245 |
+
if self.drop is not None:
|
246 |
+
hidden_states = self.drop(hidden_states)
|
247 |
+
|
248 |
+
return hidden_states
|
249 |
+
|
250 |
+
def hd_feature_transform(self, image_features, image_sizes):
|
251 |
+
"""
|
252 |
+
image_features: (num_images, num_crops+1, 24*24, 1024)
|
253 |
+
"""
|
254 |
+
assert (
|
255 |
+
self.hd_transform_order == 'sub_glb'
|
256 |
+
), f'hd_transform_order `{self.hd_transform_order}` not implemented'
|
257 |
+
if isinstance(self.img_projection, nn.Sequential):
|
258 |
+
target_device = self.img_projection[0].bias.device
|
259 |
+
target_dtype = self.img_projection[0].bias.dtype
|
260 |
+
else: # It's a single nn.Linear layer
|
261 |
+
target_device = self.img_projection.bias.device
|
262 |
+
target_dtype = self.img_projection.bias.dtype
|
263 |
+
|
264 |
+
global_image_features = image_features[:, 0] # (num_images, 24*24, 1024)
|
265 |
+
# global feature can be viewed as a special HD case with num_crops 1x1
|
266 |
+
global_image_features_hd = self.reshape_hd_patches_2x2merge(global_image_features, 1, 1)
|
267 |
+
global_image_features_hd_newline = self.add_image_newline(global_image_features_hd)
|
268 |
+
|
269 |
+
all_image_embeddings = []
|
270 |
+
# need a for loop to process each image because of different image sizes
|
271 |
+
# (patch arrangement is different for each image)
|
272 |
+
for i, img_size in enumerate(image_sizes):
|
273 |
+
h, w = img_size
|
274 |
+
h_crop = h // 336
|
275 |
+
w_crop = w // 336
|
276 |
+
num_crops = h_crop * w_crop
|
277 |
+
|
278 |
+
# NOTE: real num_crops is padded
|
279 |
+
# (num_crops, 24*24, 1024)
|
280 |
+
sub_image_features = image_features[i, 1 : 1 + num_crops]
|
281 |
+
sub_image_features_hd = self.reshape_hd_patches_2x2merge(
|
282 |
+
sub_image_features, h_crop, w_crop
|
283 |
+
)
|
284 |
+
sub_image_features_hd_newline = self.add_image_newline(sub_image_features_hd)
|
285 |
+
|
286 |
+
# [sub features, separator, global features]
|
287 |
+
all_image_embeddings.extend(
|
288 |
+
[
|
289 |
+
sub_image_features_hd_newline.squeeze(0), # (h_crop*12*(w_crop*12+1), 4096)
|
290 |
+
self.glb_GN.squeeze(0),
|
291 |
+
global_image_features_hd_newline[i],
|
292 |
+
]
|
293 |
+
)
|
294 |
+
|
295 |
+
image_features_proj = self.img_projection(
|
296 |
+
torch.cat(all_image_embeddings, dim=0).to(target_device).to(target_dtype)
|
297 |
+
)
|
298 |
+
|
299 |
+
return image_features_proj
|
300 |
+
|
301 |
+
def reshape_hd_patches_2x2merge(self, image_features, h_crop, w_crop):
|
302 |
+
"""
|
303 |
+
image_features: (num_images*num_crops, 24*24, 1024)
|
304 |
+
output: (num_images, h_crop*12, w_crop*12, 4096), h_crop*w_crop == num_crops
|
305 |
+
"""
|
306 |
+
N, L, C = image_features.shape
|
307 |
+
assert L == 24 * 24 and C == 1024 and N % (h_crop * w_crop) == 0
|
308 |
+
num_images = N // (h_crop * w_crop)
|
309 |
+
H = int(L**0.5)
|
310 |
+
image_features_hd = (
|
311 |
+
image_features.reshape(N, H, H, C) # N, 24, 24, 1024
|
312 |
+
.reshape(N, H // 2, 2, H // 2, 2, C) # N, 12, 2, 12, 2, 1024
|
313 |
+
.permute(0, 1, 3, 2, 4, 5) # N, 12, 12, 2, 2, 1024
|
314 |
+
.reshape(N, -1, 4 * C) # N, 144, 4096
|
315 |
+
.reshape(
|
316 |
+
num_images, h_crop, w_crop, H // 2, H // 2, -1
|
317 |
+
) # n_img, h_crop, w_crop, 12, 12, 4096
|
318 |
+
.permute(0, 1, 3, 2, 4, 5) # n_img, h_crop, 12, w_crop, 12, 4096
|
319 |
+
.reshape(
|
320 |
+
num_images, h_crop * H // 2, w_crop * H // 2, 4 * C
|
321 |
+
) # n_img, h_crop*12, w_crop*12, 4096
|
322 |
+
)
|
323 |
+
|
324 |
+
# alternative implementation using einops
|
325 |
+
# from einops import rearrange
|
326 |
+
# image_features_nhwc = rearrange(
|
327 |
+
# image_features,
|
328 |
+
# 'N (H W) c -> N H W c',
|
329 |
+
# H=H,
|
330 |
+
# W=H,
|
331 |
+
# )
|
332 |
+
# image_features_2x2merge = rearrange(
|
333 |
+
# image_features_nhwc,
|
334 |
+
# 'N (h h_pool) (w w_pool) c -> N h w (h_pool w_pool c)',
|
335 |
+
# h_pool=2,
|
336 |
+
# w_pool=2,
|
337 |
+
# )
|
338 |
+
# image_features_hd = rearrange(
|
339 |
+
# image_features_2x2merge,
|
340 |
+
# '(n_img h_crop w_crop) h w C -> n_img (h_crop h) (w_crop w) C',
|
341 |
+
# h_crop=h_crop,
|
342 |
+
# w_crop=w_crop,
|
343 |
+
# )
|
344 |
+
|
345 |
+
return image_features_hd
|
346 |
+
|
347 |
+
def add_image_newline(self, image_features_hd):
|
348 |
+
"""
|
349 |
+
image_features_hd: (num_images, h_crop*12, w_crop*12, 4096)
|
350 |
+
output: (num_images, (h_crop*12) * (w_crop*12+1), 4096)
|
351 |
+
"""
|
352 |
+
num_images, h, w, hid_dim = image_features_hd.shape
|
353 |
+
# add the newline token to the HD image feature patches
|
354 |
+
newline_embeddings = self.sub_GN.expand(num_images, h, -1, -1) # (n_img, h, 1, hid_dim)
|
355 |
+
image_features_hd_newline = torch.cat(
|
356 |
+
[image_features_hd, newline_embeddings], dim=2
|
357 |
+
).reshape(num_images, -1, hid_dim)
|
358 |
+
return image_features_hd_newline
|
359 |
+
|
360 |
+
|
361 |
+
logger = logging.get_logger(__name__)
|
362 |
+
|
363 |
+
_CHECKPOINT_FOR_DOC = "microsoft/Phi-3-vision-128k-instruct"
|
364 |
+
_CONFIG_FOR_DOC = "Phi3VConfig"
|
365 |
+
|
366 |
+
PHI3V_PRETRAINED_MODEL_ARCHIVE_LIST = [
|
367 |
+
"microsoft/Phi-3-vision-128k-instruct",
|
368 |
+
# See all Phi-3 models at https://huggingface.co/models?filter=Phi-3
|
369 |
+
]
|
370 |
+
|
371 |
+
|
372 |
+
# Copied from transformers.models.llama.modeling_llama.LlamaRMSNorm with Llama->Phi3
|
373 |
+
class Phi3RMSNorm(nn.Module):
|
374 |
+
def __init__(self, hidden_size, eps=1e-6):
|
375 |
+
"""
|
376 |
+
Phi3RMSNorm is equivalent to T5LayerNorm
|
377 |
+
"""
|
378 |
+
super().__init__()
|
379 |
+
self.weight = nn.Parameter(torch.ones(hidden_size))
|
380 |
+
self.variance_epsilon = eps
|
381 |
+
|
382 |
+
def forward(self, hidden_states):
|
383 |
+
input_dtype = hidden_states.dtype
|
384 |
+
hidden_states = hidden_states.to(torch.float32)
|
385 |
+
variance = hidden_states.pow(2).mean(-1, keepdim=True)
|
386 |
+
hidden_states = hidden_states * torch.rsqrt(variance + self.variance_epsilon)
|
387 |
+
return self.weight * hidden_states.to(input_dtype)
|
388 |
+
|
389 |
+
|
390 |
+
# Copied from transformers.models.llama.modeling_llama._get_unpad_data
|
391 |
+
def _get_unpad_data(attention_mask):
|
392 |
+
seqlens_in_batch = attention_mask.sum(dim=-1, dtype=torch.int32)
|
393 |
+
indices = torch.nonzero(attention_mask.flatten(), as_tuple=False).flatten()
|
394 |
+
max_seqlen_in_batch = seqlens_in_batch.max().item()
|
395 |
+
cu_seqlens = F.pad(torch.cumsum(seqlens_in_batch, dim=0, dtype=torch.int32), (1, 0))
|
396 |
+
return (
|
397 |
+
indices,
|
398 |
+
cu_seqlens,
|
399 |
+
max_seqlen_in_batch,
|
400 |
+
)
|
401 |
+
|
402 |
+
|
403 |
+
# Copied from transformers.models.gemma.modeling_gemma.GemmaRotaryEmbedding with gemma->phi3, Gemma->Phi3
|
404 |
+
class Phi3RotaryEmbedding(nn.Module):
|
405 |
+
def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None):
|
406 |
+
super().__init__()
|
407 |
+
|
408 |
+
self.dim = dim
|
409 |
+
self.max_position_embeddings = max_position_embeddings
|
410 |
+
self.base = base
|
411 |
+
self.register_buffer("inv_freq", None, persistent=False)
|
412 |
+
|
413 |
+
@torch.no_grad()
|
414 |
+
def forward(self, x, position_ids, seq_len=None):
|
415 |
+
# x: [bs, num_attention_heads, seq_len, head_size]
|
416 |
+
if self.inv_freq is None:
|
417 |
+
self.inv_freq = 1.0 / (
|
418 |
+
self.base ** (torch.arange(0, self.dim, 2, dtype=torch.int64, device=x.device).float() / self.dim)
|
419 |
+
)
|
420 |
+
inv_freq_expanded = self.inv_freq[None, :, None].float().expand(position_ids.shape[0], -1, 1)
|
421 |
+
position_ids_expanded = position_ids[:, None, :].float()
|
422 |
+
# Force float32 since bfloat16 loses precision on long contexts
|
423 |
+
# See https://github.com/huggingface/transformers/pull/29285
|
424 |
+
device_type = x.device.type
|
425 |
+
device_type = device_type if isinstance(device_type, str) and device_type != "mps" else "cpu"
|
426 |
+
with torch.autocast(device_type=device_type, enabled=False):
|
427 |
+
freqs = (inv_freq_expanded.float() @ position_ids_expanded.float()).transpose(1, 2)
|
428 |
+
emb = torch.cat((freqs, freqs), dim=-1)
|
429 |
+
cos = emb.cos()
|
430 |
+
sin = emb.sin()
|
431 |
+
return cos.to(dtype=x.dtype), sin.to(dtype=x.dtype)
|
432 |
+
|
433 |
+
|
434 |
+
class Phi3SuScaledRotaryEmbedding(Phi3RotaryEmbedding):
|
435 |
+
def __init__(self, dim, config, device=None):
|
436 |
+
super().__init__(dim, config.max_position_embeddings, config.rope_theta, device)
|
437 |
+
|
438 |
+
self.short_factor = config.rope_scaling["short_factor"]
|
439 |
+
self.long_factor = config.rope_scaling["long_factor"]
|
440 |
+
self.original_max_position_embeddings = config.original_max_position_embeddings
|
441 |
+
|
442 |
+
@torch.no_grad()
|
443 |
+
def forward(self, x, position_ids, seq_len=None):
|
444 |
+
seq_len = torch.max(position_ids) + 1
|
445 |
+
if seq_len > self.original_max_position_embeddings:
|
446 |
+
ext_factors = torch.tensor(self.long_factor, dtype=torch.float32, device=x.device)
|
447 |
+
else:
|
448 |
+
ext_factors = torch.tensor(self.short_factor, dtype=torch.float32, device=x.device)
|
449 |
+
|
450 |
+
inv_freq_shape = torch.arange(0, self.dim, 2, dtype=torch.int64, device=x.device).float() / self.dim
|
451 |
+
self.inv_freq = 1.0 / (ext_factors * self.base**inv_freq_shape)
|
452 |
+
|
453 |
+
inv_freq_expanded = self.inv_freq[None, :, None].float().expand(position_ids.shape[0], -1, 1)
|
454 |
+
position_ids_expanded = position_ids[:, None, :].float()
|
455 |
+
|
456 |
+
# Force float32 since bfloat16 loses precision on long contexts
|
457 |
+
# See https://github.com/huggingface/transformers/pull/29285
|
458 |
+
device_type = x.device.type
|
459 |
+
device_type = device_type if isinstance(device_type, str) and device_type != "mps" else "cpu"
|
460 |
+
with torch.autocast(device_type=device_type, enabled=False):
|
461 |
+
freqs = (inv_freq_expanded.float() @ position_ids_expanded.float()).transpose(1, 2)
|
462 |
+
emb = torch.cat((freqs, freqs), dim=-1)
|
463 |
+
|
464 |
+
scale = self.max_position_embeddings / self.original_max_position_embeddings
|
465 |
+
if scale <= 1.0:
|
466 |
+
scaling_factor = 1.0
|
467 |
+
else:
|
468 |
+
scaling_factor = math.sqrt(1 + math.log(scale) / math.log(self.original_max_position_embeddings))
|
469 |
+
|
470 |
+
cos = emb.cos() * scaling_factor
|
471 |
+
sin = emb.sin() * scaling_factor
|
472 |
+
return cos.to(dtype=x.dtype), sin.to(dtype=x.dtype)
|
473 |
+
|
474 |
+
|
475 |
+
class Phi3YarnScaledRotaryEmbedding(Phi3RotaryEmbedding):
|
476 |
+
def __init__(self, dim, config, device=None):
|
477 |
+
super().__init__(dim, config.max_position_embeddings, config.rope_theta, device)
|
478 |
+
|
479 |
+
self.short_factor = config.rope_scaling["short_factor"]
|
480 |
+
self.long_factor = config.rope_scaling["long_factor"]
|
481 |
+
self.original_max_position_embeddings = config.original_max_position_embeddings
|
482 |
+
|
483 |
+
@torch.no_grad()
|
484 |
+
def forward(self, x, position_ids, seq_len=None):
|
485 |
+
seq_len = torch.max(position_ids) + 1
|
486 |
+
if seq_len > self.original_max_position_embeddings:
|
487 |
+
ext_factors = torch.tensor(self.long_factor, dtype=torch.float32, device=x.device)
|
488 |
+
else:
|
489 |
+
ext_factors = torch.tensor(self.short_factor, dtype=torch.float32, device=x.device)
|
490 |
+
|
491 |
+
inv_freq_shape = torch.arange(0, self.dim, 2, dtype=torch.int64, device=x.device).float() / self.dim
|
492 |
+
self.inv_freq = 1.0 / (ext_factors * self.base**inv_freq_shape)
|
493 |
+
|
494 |
+
inv_freq_expanded = self.inv_freq[None, :, None].float().expand(position_ids.shape[0], -1, 1)
|
495 |
+
position_ids_expanded = position_ids[:, None, :].float()
|
496 |
+
|
497 |
+
# Force float32 since bfloat16 loses precision on long contexts
|
498 |
+
# See https://github.com/huggingface/transformers/pull/29285
|
499 |
+
device_type = x.device.type
|
500 |
+
device_type = device_type if isinstance(device_type, str) and device_type != "mps" else "cpu"
|
501 |
+
with torch.autocast(device_type=device_type, enabled=False):
|
502 |
+
freqs = (inv_freq_expanded.float() @ position_ids_expanded.float()).transpose(1, 2)
|
503 |
+
emb = torch.cat((freqs, freqs), dim=-1)
|
504 |
+
|
505 |
+
scale = self.max_position_embeddings / self.original_max_position_embeddings
|
506 |
+
if scale <= 1.0:
|
507 |
+
scaling_factor = 1.0
|
508 |
+
else:
|
509 |
+
scaling_factor = 0.1 * math.log(scale) + 1.0
|
510 |
+
|
511 |
+
cos = emb.cos() * scaling_factor
|
512 |
+
sin = emb.sin() * scaling_factor
|
513 |
+
return cos.to(dtype=x.dtype), sin.to(dtype=x.dtype)
|
514 |
+
|
515 |
+
|
516 |
+
# Copied from transformers.models.llama.modeling_llama.rotate_half
|
517 |
+
def rotate_half(x):
|
518 |
+
"""Rotates half the hidden dims of the input."""
|
519 |
+
x1 = x[..., : x.shape[-1] // 2]
|
520 |
+
x2 = x[..., x.shape[-1] // 2 :]
|
521 |
+
return torch.cat((-x2, x1), dim=-1)
|
522 |
+
|
523 |
+
|
524 |
+
# Copied from transformers.models.llama.modeling_llama.apply_rotary_pos_emb
|
525 |
+
def apply_rotary_pos_emb(q, k, cos, sin, position_ids=None, unsqueeze_dim=1):
|
526 |
+
"""Applies Rotary Position Embedding to the query and key tensors.
|
527 |
+
|
528 |
+
Args:
|
529 |
+
q (`torch.Tensor`): The query tensor.
|
530 |
+
k (`torch.Tensor`): The key tensor.
|
531 |
+
cos (`torch.Tensor`): The cosine part of the rotary embedding.
|
532 |
+
sin (`torch.Tensor`): The sine part of the rotary embedding.
|
533 |
+
position_ids (`torch.Tensor`, *optional*):
|
534 |
+
Deprecated and unused.
|
535 |
+
unsqueeze_dim (`int`, *optional*, defaults to 1):
|
536 |
+
The 'unsqueeze_dim' argument specifies the dimension along which to unsqueeze cos[position_ids] and
|
537 |
+
sin[position_ids] so that they can be properly broadcasted to the dimensions of q and k. For example, note
|
538 |
+
that cos[position_ids] and sin[position_ids] have the shape [batch_size, seq_len, head_dim]. Then, if q and
|
539 |
+
k have the shape [batch_size, heads, seq_len, head_dim], then setting unsqueeze_dim=1 makes
|
540 |
+
cos[position_ids] and sin[position_ids] broadcastable to the shapes of q and k. Similarly, if q and k have
|
541 |
+
the shape [batch_size, seq_len, heads, head_dim], then set unsqueeze_dim=2.
|
542 |
+
Returns:
|
543 |
+
`tuple(torch.Tensor)` comprising of the query and key tensors rotated using the Rotary Position Embedding.
|
544 |
+
"""
|
545 |
+
cos = cos.unsqueeze(unsqueeze_dim)
|
546 |
+
sin = sin.unsqueeze(unsqueeze_dim)
|
547 |
+
q_embed = (q * cos) + (rotate_half(q) * sin)
|
548 |
+
k_embed = (k * cos) + (rotate_half(k) * sin)
|
549 |
+
return q_embed, k_embed
|
550 |
+
|
551 |
+
|
552 |
+
class Phi3MLP(nn.Module):
|
553 |
+
def __init__(self, config):
|
554 |
+
super().__init__()
|
555 |
+
|
556 |
+
self.config = config
|
557 |
+
self.gate_up_proj = nn.Linear(config.hidden_size, 2 * config.intermediate_size, bias=False)
|
558 |
+
self.down_proj = nn.Linear(config.intermediate_size, config.hidden_size, bias=False)
|
559 |
+
|
560 |
+
self.activation_fn = ACT2FN[config.hidden_act]
|
561 |
+
|
562 |
+
def forward(self, hidden_states: torch.FloatTensor) -> torch.FloatTensor:
|
563 |
+
up_states = self.gate_up_proj(hidden_states)
|
564 |
+
|
565 |
+
gate, up_states = up_states.chunk(2, dim=-1)
|
566 |
+
up_states = up_states * self.activation_fn(gate)
|
567 |
+
|
568 |
+
return self.down_proj(up_states)
|
569 |
+
|
570 |
+
|
571 |
+
# Copied from transformers.models.llama.modeling_llama.repeat_kv with llama->phi
|
572 |
+
def repeat_kv(hidden_states: torch.Tensor, n_rep: int) -> torch.Tensor:
|
573 |
+
"""
|
574 |
+
This is the equivalent of torch.repeat_interleave(x, dim=1, repeats=n_rep). The hidden states go from (batch,
|
575 |
+
num_key_value_heads, seqlen, head_dim) to (batch, num_attention_heads, seqlen, head_dim)
|
576 |
+
"""
|
577 |
+
batch, num_key_value_heads, slen, head_dim = hidden_states.shape
|
578 |
+
if n_rep == 1:
|
579 |
+
return hidden_states
|
580 |
+
hidden_states = hidden_states[:, :, None, :, :].expand(batch, num_key_value_heads, n_rep, slen, head_dim)
|
581 |
+
return hidden_states.reshape(batch, num_key_value_heads * n_rep, slen, head_dim)
|
582 |
+
|
583 |
+
|
584 |
+
class Phi3Attention(nn.Module):
|
585 |
+
"""Multi-headed attention from 'Attention Is All You Need' paper"""
|
586 |
+
|
587 |
+
def __init__(self, config: Phi3VConfig, layer_idx: Optional[int] = None):
|
588 |
+
super().__init__()
|
589 |
+
self.config = config
|
590 |
+
self.layer_idx = layer_idx
|
591 |
+
if layer_idx is None:
|
592 |
+
logger.warning_once(
|
593 |
+
f"Instantiating {self.__class__.__name__} without passing a `layer_idx` is not recommended and will "
|
594 |
+
"lead to errors during the forward call if caching is used. Please make sure to provide a `layer_idx` "
|
595 |
+
"when creating this class."
|
596 |
+
)
|
597 |
+
|
598 |
+
self.attention_dropout = config.attention_dropout
|
599 |
+
self.hidden_size = config.hidden_size
|
600 |
+
self.num_heads = config.num_attention_heads
|
601 |
+
self.head_dim = self.hidden_size // self.num_heads
|
602 |
+
self.num_key_value_heads = config.num_key_value_heads
|
603 |
+
self.num_key_value_groups = self.num_heads // self.num_key_value_heads
|
604 |
+
self.max_position_embeddings = config.max_position_embeddings
|
605 |
+
self.original_max_position_embeddings = config.original_max_position_embeddings
|
606 |
+
self.rope_theta = config.rope_theta
|
607 |
+
self.rope_scaling = config.rope_scaling
|
608 |
+
self.is_causal = True
|
609 |
+
|
610 |
+
if (self.head_dim * self.num_heads) != self.hidden_size:
|
611 |
+
raise ValueError(
|
612 |
+
f"hidden_size must be divisible by num_heads (got `hidden_size`: {self.hidden_size}"
|
613 |
+
f" and `num_heads`: {self.num_heads})."
|
614 |
+
)
|
615 |
+
|
616 |
+
op_size = self.num_heads * self.head_dim + 2 * (self.num_key_value_heads * self.head_dim)
|
617 |
+
self.o_proj = nn.Linear(self.num_heads * self.head_dim, self.hidden_size, bias=False)
|
618 |
+
self.qkv_proj = nn.Linear(self.hidden_size, op_size, bias=False)
|
619 |
+
self._init_rope()
|
620 |
+
|
621 |
+
def _init_rope(self):
|
622 |
+
if self.rope_scaling is None:
|
623 |
+
self.rotary_emb = Phi3RotaryEmbedding(
|
624 |
+
self.head_dim,
|
625 |
+
max_position_embeddings=self.max_position_embeddings,
|
626 |
+
base=self.rope_theta,
|
627 |
+
)
|
628 |
+
else:
|
629 |
+
scaling_type = self.config.rope_scaling["type"]
|
630 |
+
if scaling_type == "su":
|
631 |
+
self.rotary_emb = Phi3SuScaledRotaryEmbedding(self.head_dim, self.config)
|
632 |
+
elif scaling_type == "yarn":
|
633 |
+
self.rotary_emb = Phi3YarnScaledRotaryEmbedding(self.head_dim, self.config)
|
634 |
+
else:
|
635 |
+
raise ValueError(f"Unknown RoPE scaling type {scaling_type}")
|
636 |
+
|
637 |
+
def forward(
|
638 |
+
self,
|
639 |
+
hidden_states: torch.Tensor,
|
640 |
+
attention_mask: Optional[torch.Tensor] = None,
|
641 |
+
position_ids: Optional[torch.LongTensor] = None,
|
642 |
+
past_key_value: Optional[Cache] = None,
|
643 |
+
output_attentions: bool = False,
|
644 |
+
use_cache: bool = False,
|
645 |
+
) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
|
646 |
+
logger.warning_once("You are not running the flash-attention implementation, expect numerical differences.")
|
647 |
+
|
648 |
+
bsz, q_len, _ = hidden_states.size()
|
649 |
+
|
650 |
+
qkv = self.qkv_proj(hidden_states)
|
651 |
+
query_pos = self.num_heads * self.head_dim
|
652 |
+
query_states = qkv[..., :query_pos]
|
653 |
+
key_states = qkv[..., query_pos : query_pos + self.num_key_value_heads * self.head_dim]
|
654 |
+
value_states = qkv[..., query_pos + self.num_key_value_heads * self.head_dim :]
|
655 |
+
|
656 |
+
query_states = query_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2)
|
657 |
+
key_states = key_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
|
658 |
+
value_states = value_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
|
659 |
+
|
660 |
+
kv_seq_len = key_states.shape[-2]
|
661 |
+
if past_key_value is not None:
|
662 |
+
if self.layer_idx is None:
|
663 |
+
raise ValueError(
|
664 |
+
f"The cache structure has changed since version v4.36. If you are using {self.__class__.__name__} "
|
665 |
+
"for auto-regressive decoding with k/v caching, please make sure to initialize the attention class "
|
666 |
+
"with a layer index."
|
667 |
+
)
|
668 |
+
kv_seq_len += past_key_value.get_usable_length(kv_seq_len, self.layer_idx)
|
669 |
+
cos, sin = self.rotary_emb(value_states, position_ids, seq_len=kv_seq_len)
|
670 |
+
|
671 |
+
query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids)
|
672 |
+
|
673 |
+
if past_key_value is not None:
|
674 |
+
cache_kwargs = {"sin": sin, "cos": cos} # Specific to RoPE models
|
675 |
+
key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx, cache_kwargs)
|
676 |
+
|
677 |
+
# repeat k/v heads if n_kv_heads < n_heads
|
678 |
+
key_states = repeat_kv(key_states, self.num_key_value_groups)
|
679 |
+
value_states = repeat_kv(value_states, self.num_key_value_groups)
|
680 |
+
|
681 |
+
attn_weights = torch.matmul(query_states, key_states.transpose(2, 3)) / math.sqrt(self.head_dim)
|
682 |
+
|
683 |
+
if attn_weights.size() != (bsz, self.num_heads, q_len, kv_seq_len):
|
684 |
+
raise ValueError(
|
685 |
+
f"Attention weights should be of size {(bsz, self.num_heads, q_len, kv_seq_len)}, but is"
|
686 |
+
f" {attn_weights.size()}"
|
687 |
+
)
|
688 |
+
|
689 |
+
if attention_mask is not None:
|
690 |
+
if attention_mask.size() != (bsz, 1, q_len, kv_seq_len):
|
691 |
+
raise ValueError(
|
692 |
+
f"Attention mask should be of size {(bsz, 1, q_len, kv_seq_len)}, but is {attention_mask.size()}"
|
693 |
+
)
|
694 |
+
attn_weights = attn_weights + attention_mask
|
695 |
+
|
696 |
+
# upcast attention to fp32
|
697 |
+
attn_weights = nn.functional.softmax(attn_weights, dim=-1, dtype=torch.float32).to(value_states.dtype)
|
698 |
+
attn_weights = nn.functional.dropout(attn_weights, p=self.attention_dropout, training=self.training)
|
699 |
+
|
700 |
+
attn_output = torch.matmul(attn_weights, value_states)
|
701 |
+
|
702 |
+
if attn_output.size() != (bsz, self.num_heads, q_len, self.head_dim):
|
703 |
+
raise ValueError(
|
704 |
+
f"`attn_output` should be of size {(bsz, self.num_heads, q_len, self.head_dim)}, but is"
|
705 |
+
f" {attn_output.size()}"
|
706 |
+
)
|
707 |
+
|
708 |
+
attn_output = attn_output.transpose(1, 2).contiguous()
|
709 |
+
attn_output = attn_output.reshape(bsz, q_len, self.hidden_size)
|
710 |
+
|
711 |
+
attn_output = self.o_proj(attn_output)
|
712 |
+
|
713 |
+
if not output_attentions:
|
714 |
+
attn_weights = None
|
715 |
+
|
716 |
+
return attn_output, attn_weights, past_key_value
|
717 |
+
|
718 |
+
|
719 |
+
class Phi3FlashAttention2(Phi3Attention):
|
720 |
+
"""
|
721 |
+
Phi-3 flash attention module. This module inherits from `Phi3Attention` as the weights of the module stays
|
722 |
+
untouched. The only required change would be on the forward pass where it needs to correctly call the public API of
|
723 |
+
flash attention and deal with padding tokens in case the input contains any of them.
|
724 |
+
"""
|
725 |
+
|
726 |
+
# Copied from transformers.models.llama.modeling_llama.LlamaFlashAttention2.__init__
|
727 |
+
def __init__(self, *args, **kwargs):
|
728 |
+
super().__init__(*args, **kwargs)
|
729 |
+
|
730 |
+
# TODO: Should be removed once Flash Attention for RoCm is bumped to 2.1.
|
731 |
+
# flash_attn<2.1 generates top-left aligned causal mask, while what is needed here is bottom-right alignement, that was made default for flash_attn>=2.1. This attribute is used to handle this difference. Reference: https://github.com/Dao-AILab/flash-attention/releases/tag/v2.1.0.
|
732 |
+
# Beware that with flash_attn<2.1, using q_seqlen != k_seqlen (except for the case q_seqlen == 1) produces a wrong mask (top-left).
|
733 |
+
self._flash_attn_uses_top_left_mask = not is_flash_attn_greater_or_equal_2_10()
|
734 |
+
|
735 |
+
def forward(
|
736 |
+
self,
|
737 |
+
hidden_states: torch.Tensor,
|
738 |
+
attention_mask: Optional[torch.LongTensor] = None,
|
739 |
+
position_ids: Optional[torch.LongTensor] = None,
|
740 |
+
past_key_value: Optional[Cache] = None,
|
741 |
+
output_attentions: bool = False,
|
742 |
+
use_cache: bool = False,
|
743 |
+
**kwargs,
|
744 |
+
) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
|
745 |
+
# Phi3FlashAttention2 attention does not support output_attentions
|
746 |
+
|
747 |
+
if not _flash_supports_window_size:
|
748 |
+
logger.warning_once(
|
749 |
+
"The current flash attention version does not support sliding window attention. Please use `attn_implementation='eager'` or upgrade flash-attn library."
|
750 |
+
)
|
751 |
+
raise ValueError("The current flash attention version does not support sliding window attention.")
|
752 |
+
|
753 |
+
output_attentions = False
|
754 |
+
|
755 |
+
if "padding_mask" in kwargs:
|
756 |
+
warnings.warn(
|
757 |
+
"Passing `padding_mask` is deprecated and will be removed in v4.37. Please make sure use `attention_mask` instead.`"
|
758 |
+
)
|
759 |
+
|
760 |
+
# overwrite attention_mask with padding_mask
|
761 |
+
attention_mask = kwargs.pop("padding_mask")
|
762 |
+
|
763 |
+
bsz, q_len, _ = hidden_states.size()
|
764 |
+
|
765 |
+
qkv = self.qkv_proj(hidden_states)
|
766 |
+
query_pos = self.num_heads * self.head_dim
|
767 |
+
query_states = qkv[..., :query_pos]
|
768 |
+
key_states = qkv[..., query_pos : query_pos + self.num_key_value_heads * self.head_dim]
|
769 |
+
value_states = qkv[..., query_pos + self.num_key_value_heads * self.head_dim :]
|
770 |
+
|
771 |
+
# Flash attention requires the input to have the shape
|
772 |
+
# batch_size x seq_length x head_dim x hidden_dim
|
773 |
+
# therefore we just need to keep the original shape
|
774 |
+
query_states = query_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2)
|
775 |
+
key_states = key_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
|
776 |
+
value_states = value_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
|
777 |
+
|
778 |
+
kv_seq_len = key_states.shape[-2]
|
779 |
+
if past_key_value is not None:
|
780 |
+
if self.layer_idx is None:
|
781 |
+
raise ValueError(
|
782 |
+
f"The cache structure has changed since version v4.36. If you are using {self.__class__.__name__} "
|
783 |
+
"for auto-regressive decoding with k/v caching, please make sure to initialize the attention class "
|
784 |
+
"with a layer index."
|
785 |
+
)
|
786 |
+
kv_seq_len += past_key_value.get_usable_length(kv_seq_len, self.layer_idx)
|
787 |
+
|
788 |
+
# Because the input can be padded, the absolute sequence length depends on the max position id.
|
789 |
+
rotary_seq_len = max(kv_seq_len, position_ids[:, -1].max().item()) + 1
|
790 |
+
cos, sin = self.rotary_emb(value_states, position_ids, seq_len=rotary_seq_len)
|
791 |
+
|
792 |
+
query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids)
|
793 |
+
|
794 |
+
use_sliding_windows = (
|
795 |
+
_flash_supports_window_size
|
796 |
+
and getattr(self.config, "sliding_window", None) is not None
|
797 |
+
and kv_seq_len > self.config.sliding_window
|
798 |
+
)
|
799 |
+
|
800 |
+
if past_key_value is not None:
|
801 |
+
# Activate slicing cache only if the config has a value `sliding_windows` attribute
|
802 |
+
cache_has_contents = past_key_value.get_seq_length(self.layer_idx) > 0
|
803 |
+
if (
|
804 |
+
getattr(self.config, "sliding_window", None) is not None
|
805 |
+
and kv_seq_len > self.config.sliding_window
|
806 |
+
and cache_has_contents
|
807 |
+
):
|
808 |
+
slicing_tokens = 1 - self.config.sliding_window
|
809 |
+
|
810 |
+
past_key = past_key_value[self.layer_idx][0]
|
811 |
+
past_value = past_key_value[self.layer_idx][1]
|
812 |
+
|
813 |
+
past_key = past_key[:, :, slicing_tokens:, :].contiguous()
|
814 |
+
past_value = past_value[:, :, slicing_tokens:, :].contiguous()
|
815 |
+
|
816 |
+
if past_key.shape[-2] != self.config.sliding_window - 1:
|
817 |
+
raise ValueError(
|
818 |
+
f"past key must have a shape of (`batch_size, num_heads, self.config.sliding_window-1, head_dim`), got"
|
819 |
+
f" {past_key.shape}"
|
820 |
+
)
|
821 |
+
|
822 |
+
if attention_mask is not None:
|
823 |
+
attention_mask = attention_mask[:, slicing_tokens:]
|
824 |
+
attention_mask = torch.cat([attention_mask, torch.ones_like(attention_mask[:, -1:])], dim=-1)
|
825 |
+
|
826 |
+
cache_kwargs = {"sin": sin, "cos": cos} # Specific to RoPE models
|
827 |
+
key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx, cache_kwargs)
|
828 |
+
|
829 |
+
# repeat k/v heads if n_kv_heads < n_heads
|
830 |
+
key_states = repeat_kv(key_states, self.num_key_value_groups)
|
831 |
+
value_states = repeat_kv(value_states, self.num_key_value_groups)
|
832 |
+
|
833 |
+
attn_dropout = self.attention_dropout if self.training else 0.0
|
834 |
+
|
835 |
+
# In PEFT, usually we cast the layer norms in float32 for training stability reasons
|
836 |
+
# therefore the input hidden states gets silently casted in float32. Hence, we need
|
837 |
+
# cast them back in the correct dtype just to be sure everything works as expected.
|
838 |
+
# This might slowdown training & inference so it is recommended to not cast the LayerNorms
|
839 |
+
# in fp32.
|
840 |
+
|
841 |
+
if query_states.dtype == torch.float32:
|
842 |
+
if torch.is_autocast_enabled():
|
843 |
+
target_dtype = torch.get_autocast_gpu_dtype()
|
844 |
+
# Handle the case where the model is quantized
|
845 |
+
elif hasattr(self.config, "_pre_quantization_dtype"):
|
846 |
+
target_dtype = self.config._pre_quantization_dtype
|
847 |
+
else:
|
848 |
+
target_dtype = self.qkv_proj.weight.dtype
|
849 |
+
|
850 |
+
logger.warning_once(
|
851 |
+
f"The input hidden states seems to be silently casted in float32, this might be related to"
|
852 |
+
f" the fact you have upcasted embedding or layer norm layers in float32. We will cast back the input in"
|
853 |
+
f" {target_dtype}."
|
854 |
+
)
|
855 |
+
|
856 |
+
query_states = query_states.to(target_dtype)
|
857 |
+
key_states = key_states.to(target_dtype)
|
858 |
+
value_states = value_states.to(target_dtype)
|
859 |
+
|
860 |
+
# Reashape to the expected shape for Flash Attention
|
861 |
+
query_states = query_states.transpose(1, 2)
|
862 |
+
key_states = key_states.transpose(1, 2)
|
863 |
+
value_states = value_states.transpose(1, 2)
|
864 |
+
|
865 |
+
attn_output = self._flash_attention_forward(
|
866 |
+
query_states,
|
867 |
+
key_states,
|
868 |
+
value_states,
|
869 |
+
attention_mask,
|
870 |
+
q_len,
|
871 |
+
dropout=attn_dropout,
|
872 |
+
use_sliding_windows=use_sliding_windows,
|
873 |
+
)
|
874 |
+
|
875 |
+
attn_output = attn_output.reshape(bsz, q_len, self.hidden_size).contiguous()
|
876 |
+
attn_output = self.o_proj(attn_output)
|
877 |
+
|
878 |
+
if not output_attentions:
|
879 |
+
attn_weights = None
|
880 |
+
|
881 |
+
return attn_output, attn_weights, past_key_value
|
882 |
+
|
883 |
+
# Copied from transformers.models.mistral.modeling_mistral.MistralFlashAttention2._flash_attention_forward
|
884 |
+
def _flash_attention_forward(
|
885 |
+
self,
|
886 |
+
query_states,
|
887 |
+
key_states,
|
888 |
+
value_states,
|
889 |
+
attention_mask,
|
890 |
+
query_length,
|
891 |
+
dropout=0.0,
|
892 |
+
softmax_scale=None,
|
893 |
+
use_sliding_windows=False,
|
894 |
+
):
|
895 |
+
"""
|
896 |
+
Calls the forward method of Flash Attention - if the input hidden states contain at least one padding token
|
897 |
+
first unpad the input, then computes the attention scores and pad the final attention scores.
|
898 |
+
|
899 |
+
Args:
|
900 |
+
query_states (`torch.Tensor`):
|
901 |
+
Input query states to be passed to Flash Attention API
|
902 |
+
key_states (`torch.Tensor`):
|
903 |
+
Input key states to be passed to Flash Attention API
|
904 |
+
value_states (`torch.Tensor`):
|
905 |
+
Input value states to be passed to Flash Attention API
|
906 |
+
attention_mask (`torch.Tensor`):
|
907 |
+
The padding mask - corresponds to a tensor of size `(batch_size, seq_len)` where 0 stands for the
|
908 |
+
position of padding tokens and 1 for the position of non-padding tokens.
|
909 |
+
dropout (`float`):
|
910 |
+
Attention dropout
|
911 |
+
softmax_scale (`float`, *optional*):
|
912 |
+
The scaling of QK^T before applying softmax. Default to 1 / sqrt(head_dim)
|
913 |
+
use_sliding_windows (`bool`, *optional*):
|
914 |
+
Whether to activate sliding window attention.
|
915 |
+
"""
|
916 |
+
if not self._flash_attn_uses_top_left_mask:
|
917 |
+
causal = self.is_causal
|
918 |
+
else:
|
919 |
+
# TODO: Remove the `query_length != 1` check once Flash Attention for RoCm is bumped to 2.1. For details, please see the comment in LlamaFlashAttention2 __init__.
|
920 |
+
causal = self.is_causal and query_length != 1
|
921 |
+
|
922 |
+
# Contains at least one padding token in the sequence
|
923 |
+
if attention_mask is not None:
|
924 |
+
batch_size = query_states.shape[0]
|
925 |
+
query_states, key_states, value_states, indices_q, cu_seq_lens, max_seq_lens = self._upad_input(
|
926 |
+
query_states, key_states, value_states, attention_mask, query_length
|
927 |
+
)
|
928 |
+
|
929 |
+
cu_seqlens_q, cu_seqlens_k = cu_seq_lens
|
930 |
+
max_seqlen_in_batch_q, max_seqlen_in_batch_k = max_seq_lens
|
931 |
+
|
932 |
+
if not use_sliding_windows:
|
933 |
+
attn_output_unpad = flash_attn_varlen_func(
|
934 |
+
query_states,
|
935 |
+
key_states,
|
936 |
+
value_states,
|
937 |
+
cu_seqlens_q=cu_seqlens_q,
|
938 |
+
cu_seqlens_k=cu_seqlens_k,
|
939 |
+
max_seqlen_q=max_seqlen_in_batch_q,
|
940 |
+
max_seqlen_k=max_seqlen_in_batch_k,
|
941 |
+
dropout_p=dropout,
|
942 |
+
softmax_scale=softmax_scale,
|
943 |
+
causal=causal,
|
944 |
+
)
|
945 |
+
else:
|
946 |
+
attn_output_unpad = flash_attn_varlen_func(
|
947 |
+
query_states,
|
948 |
+
key_states,
|
949 |
+
value_states,
|
950 |
+
cu_seqlens_q=cu_seqlens_q,
|
951 |
+
cu_seqlens_k=cu_seqlens_k,
|
952 |
+
max_seqlen_q=max_seqlen_in_batch_q,
|
953 |
+
max_seqlen_k=max_seqlen_in_batch_k,
|
954 |
+
dropout_p=dropout,
|
955 |
+
softmax_scale=softmax_scale,
|
956 |
+
causal=causal,
|
957 |
+
window_size=(self.config.sliding_window, self.config.sliding_window),
|
958 |
+
)
|
959 |
+
|
960 |
+
attn_output = pad_input(attn_output_unpad, indices_q, batch_size, query_length)
|
961 |
+
else:
|
962 |
+
if not use_sliding_windows:
|
963 |
+
attn_output = flash_attn_func(
|
964 |
+
query_states,
|
965 |
+
key_states,
|
966 |
+
value_states,
|
967 |
+
dropout,
|
968 |
+
softmax_scale=softmax_scale,
|
969 |
+
causal=causal,
|
970 |
+
)
|
971 |
+
else:
|
972 |
+
attn_output = flash_attn_func(
|
973 |
+
query_states,
|
974 |
+
key_states,
|
975 |
+
value_states,
|
976 |
+
dropout,
|
977 |
+
softmax_scale=softmax_scale,
|
978 |
+
causal=causal,
|
979 |
+
window_size=(self.config.sliding_window, self.config.sliding_window),
|
980 |
+
)
|
981 |
+
|
982 |
+
return attn_output
|
983 |
+
|
984 |
+
# Copied from transformers.models.mistral.modeling_mistral.MistralFlashAttention2._upad_input
|
985 |
+
def _upad_input(self, query_layer, key_layer, value_layer, attention_mask, query_length):
|
986 |
+
batch_size, kv_seq_len, num_heads, head_dim = key_layer.shape
|
987 |
+
|
988 |
+
# On the first iteration we need to properly re-create the padding mask
|
989 |
+
# by slicing it on the proper place
|
990 |
+
if kv_seq_len != attention_mask.shape[-1]:
|
991 |
+
attention_mask_num_tokens = attention_mask.shape[-1]
|
992 |
+
attention_mask = attention_mask[:, attention_mask_num_tokens - kv_seq_len :]
|
993 |
+
|
994 |
+
indices_k, cu_seqlens_k, max_seqlen_in_batch_k = _get_unpad_data(attention_mask)
|
995 |
+
|
996 |
+
key_layer = index_first_axis(key_layer.reshape(batch_size * kv_seq_len, num_heads, head_dim), indices_k)
|
997 |
+
value_layer = index_first_axis(value_layer.reshape(batch_size * kv_seq_len, num_heads, head_dim), indices_k)
|
998 |
+
|
999 |
+
if query_length == kv_seq_len:
|
1000 |
+
query_layer = index_first_axis(
|
1001 |
+
query_layer.reshape(batch_size * kv_seq_len, num_heads, head_dim), indices_k
|
1002 |
+
)
|
1003 |
+
cu_seqlens_q = cu_seqlens_k
|
1004 |
+
max_seqlen_in_batch_q = max_seqlen_in_batch_k
|
1005 |
+
indices_q = indices_k
|
1006 |
+
elif query_length == 1:
|
1007 |
+
max_seqlen_in_batch_q = 1
|
1008 |
+
cu_seqlens_q = torch.arange(
|
1009 |
+
batch_size + 1, dtype=torch.int32, device=query_layer.device
|
1010 |
+
) # There is a memcpy here, that is very bad.
|
1011 |
+
indices_q = cu_seqlens_q[:-1]
|
1012 |
+
query_layer = query_layer.squeeze(1)
|
1013 |
+
else:
|
1014 |
+
# The -q_len: slice assumes left padding.
|
1015 |
+
attention_mask = attention_mask[:, -query_length:]
|
1016 |
+
query_layer, indices_q, cu_seqlens_q, max_seqlen_in_batch_q = unpad_input(query_layer, attention_mask)
|
1017 |
+
|
1018 |
+
return (
|
1019 |
+
query_layer,
|
1020 |
+
key_layer,
|
1021 |
+
value_layer,
|
1022 |
+
indices_q,
|
1023 |
+
(cu_seqlens_q, cu_seqlens_k),
|
1024 |
+
(max_seqlen_in_batch_q, max_seqlen_in_batch_k),
|
1025 |
+
)
|
1026 |
+
|
1027 |
+
|
1028 |
+
# copied from transformers.models.llama.modeling_llama.LlamaSdpaAttention with Llama->Phi3
|
1029 |
+
# TODO @Arthur no longer copied from LLama after static cache
|
1030 |
+
class Phi3SdpaAttention(Phi3Attention):
|
1031 |
+
"""
|
1032 |
+
Phi3 attention module using torch.nn.functional.scaled_dot_product_attention. This module inherits from
|
1033 |
+
`Phi3Attention` as the weights of the module stays untouched. The only changes are on the forward pass to adapt to
|
1034 |
+
SDPA API.
|
1035 |
+
"""
|
1036 |
+
|
1037 |
+
# Adapted from Phi3Attention.forward
|
1038 |
+
def forward(
|
1039 |
+
self,
|
1040 |
+
hidden_states: torch.Tensor,
|
1041 |
+
attention_mask: Optional[torch.Tensor] = None,
|
1042 |
+
position_ids: Optional[torch.LongTensor] = None,
|
1043 |
+
past_key_value: Optional[Cache] = None,
|
1044 |
+
output_attentions: bool = False,
|
1045 |
+
use_cache: bool = False,
|
1046 |
+
) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
|
1047 |
+
if output_attentions:
|
1048 |
+
# TODO: Improve this warning with e.g. `model.config.attn_implementation = "manual"` once this is implemented.
|
1049 |
+
logger.warning_once(
|
1050 |
+
"Phi3Model is using Phi3SdpaAttention, but `torch.nn.functional.scaled_dot_product_attention` does not support `output_attentions=True`. Falling back to the manual attention implementation, "
|
1051 |
+
'but specifying the manual implementation will be required from Transformers version v5.0.0 onwards. This warning can be removed using the argument `attn_implementation="eager"` when loading the model.'
|
1052 |
+
)
|
1053 |
+
return super().forward(
|
1054 |
+
hidden_states=hidden_states,
|
1055 |
+
attention_mask=attention_mask,
|
1056 |
+
position_ids=position_ids,
|
1057 |
+
past_key_value=past_key_value,
|
1058 |
+
output_attentions=output_attentions,
|
1059 |
+
use_cache=use_cache,
|
1060 |
+
)
|
1061 |
+
|
1062 |
+
bsz, q_len, _ = hidden_states.size()
|
1063 |
+
|
1064 |
+
qkv = self.qkv_proj(hidden_states)
|
1065 |
+
query_pos = self.num_heads * self.head_dim
|
1066 |
+
query_states = qkv[..., :query_pos]
|
1067 |
+
key_states = qkv[..., query_pos : query_pos + self.num_key_value_heads * self.head_dim]
|
1068 |
+
value_states = qkv[..., query_pos + self.num_key_value_heads * self.head_dim :]
|
1069 |
+
|
1070 |
+
query_states = query_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2)
|
1071 |
+
key_states = key_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
|
1072 |
+
value_states = value_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
|
1073 |
+
|
1074 |
+
kv_seq_len = key_states.shape[-2]
|
1075 |
+
if past_key_value is not None:
|
1076 |
+
kv_seq_len += past_key_value.get_usable_length(kv_seq_len, self.layer_idx)
|
1077 |
+
cos, sin = self.rotary_emb(value_states, position_ids, seq_len=kv_seq_len)
|
1078 |
+
|
1079 |
+
query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids)
|
1080 |
+
|
1081 |
+
if past_key_value is not None:
|
1082 |
+
cache_kwargs = {"sin": sin, "cos": cos} # Specific to RoPE models
|
1083 |
+
key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx, cache_kwargs)
|
1084 |
+
|
1085 |
+
key_states = repeat_kv(key_states, self.num_key_value_groups)
|
1086 |
+
value_states = repeat_kv(value_states, self.num_key_value_groups)
|
1087 |
+
|
1088 |
+
if attention_mask is not None:
|
1089 |
+
if attention_mask.size() != (bsz, 1, q_len, kv_seq_len):
|
1090 |
+
raise ValueError(
|
1091 |
+
f"Attention mask should be of size {(bsz, 1, q_len, kv_seq_len)}, but is {attention_mask.size()}"
|
1092 |
+
)
|
1093 |
+
|
1094 |
+
# SDPA with memory-efficient backend is currently (torch==2.1.2) bugged with non-contiguous inputs with custom attn_mask,
|
1095 |
+
# Reference: https://github.com/pytorch/pytorch/issues/112577.
|
1096 |
+
if query_states.device.type == "cuda" and attention_mask is not None:
|
1097 |
+
query_states = query_states.contiguous()
|
1098 |
+
key_states = key_states.contiguous()
|
1099 |
+
value_states = value_states.contiguous()
|
1100 |
+
|
1101 |
+
attn_output = torch.nn.functional.scaled_dot_product_attention(
|
1102 |
+
query_states,
|
1103 |
+
key_states,
|
1104 |
+
value_states,
|
1105 |
+
attn_mask=attention_mask,
|
1106 |
+
dropout_p=self.attention_dropout if self.training else 0.0,
|
1107 |
+
# The q_len > 1 is necessary to match with AttentionMaskConverter.to_causal_4d that does not create a causal mask in case q_len == 1.
|
1108 |
+
is_causal=self.is_causal and attention_mask is None and q_len > 1,
|
1109 |
+
)
|
1110 |
+
|
1111 |
+
attn_output = attn_output.transpose(1, 2).contiguous()
|
1112 |
+
attn_output = attn_output.view(bsz, q_len, self.hidden_size)
|
1113 |
+
|
1114 |
+
attn_output = self.o_proj(attn_output)
|
1115 |
+
|
1116 |
+
return attn_output, None, past_key_value
|
1117 |
+
|
1118 |
+
|
1119 |
+
PHI3_ATTENTION_CLASSES = {
|
1120 |
+
"eager": Phi3Attention,
|
1121 |
+
"flash_attention_2": Phi3FlashAttention2,
|
1122 |
+
"sdpa": Phi3SdpaAttention,
|
1123 |
+
}
|
1124 |
+
|
1125 |
+
|
1126 |
+
class Phi3DecoderLayer(nn.Module):
|
1127 |
+
def __init__(self, config: Phi3VConfig, layer_idx: int):
|
1128 |
+
super().__init__()
|
1129 |
+
|
1130 |
+
self.config = config
|
1131 |
+
self.self_attn = PHI3_ATTENTION_CLASSES[config._attn_implementation](config, layer_idx=layer_idx)
|
1132 |
+
|
1133 |
+
self.mlp = Phi3MLP(config)
|
1134 |
+
self.input_layernorm = Phi3RMSNorm(config.hidden_size, eps=config.rms_norm_eps)
|
1135 |
+
|
1136 |
+
self.resid_attn_dropout = nn.Dropout(config.resid_pdrop)
|
1137 |
+
self.resid_mlp_dropout = nn.Dropout(config.resid_pdrop)
|
1138 |
+
self.post_attention_layernorm = Phi3RMSNorm(config.hidden_size, eps=config.rms_norm_eps)
|
1139 |
+
|
1140 |
+
def forward(
|
1141 |
+
self,
|
1142 |
+
hidden_states: torch.Tensor,
|
1143 |
+
attention_mask: Optional[torch.Tensor] = None,
|
1144 |
+
position_ids: Optional[torch.LongTensor] = None,
|
1145 |
+
past_key_value: Optional[Tuple[torch.Tensor]] = None,
|
1146 |
+
output_attentions: Optional[bool] = False,
|
1147 |
+
use_cache: Optional[bool] = False,
|
1148 |
+
**kwargs,
|
1149 |
+
) -> Tuple[torch.FloatTensor, Optional[Tuple[torch.FloatTensor, torch.FloatTensor]]]:
|
1150 |
+
if "padding_mask" in kwargs:
|
1151 |
+
warnings.warn(
|
1152 |
+
"Passing `padding_mask` is deprecated and will be removed in v4.37. Please make sure use `attention_mask` instead.`"
|
1153 |
+
)
|
1154 |
+
"""
|
1155 |
+
Args:
|
1156 |
+
hidden_states (`torch.FloatTensor`):
|
1157 |
+
input to the layer of shape `(batch, seq_len, embed_dim)`
|
1158 |
+
attention_mask (`torch.FloatTensor`, *optional*): attention mask of size
|
1159 |
+
`(batch, 1, tgt_len, src_len)` where padding elements are indicated by very large negative values.
|
1160 |
+
position_ids (`torch.LongTensor` of shape `({0})`, *optional*):
|
1161 |
+
Indices of positions of each input sequence tokens in the position embeddings. Selected in the range
|
1162 |
+
`[0, config.n_positions - 1]`. [What are position IDs?](../glossary#position-ids)
|
1163 |
+
output_attentions (`bool`, *optional*):
|
1164 |
+
Whether or not to return the attentions tensors of all attention layers. See `attentions` under
|
1165 |
+
returned tensors for more detail.
|
1166 |
+
use_cache (`bool`, *optional*):
|
1167 |
+
If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding
|
1168 |
+
(see `past_key_values`).
|
1169 |
+
past_key_value (`Tuple(torch.FloatTensor)`, *optional*): cached past key and value projection states
|
1170 |
+
"""
|
1171 |
+
|
1172 |
+
residual = hidden_states
|
1173 |
+
|
1174 |
+
hidden_states = self.input_layernorm(hidden_states)
|
1175 |
+
|
1176 |
+
# Self Attention
|
1177 |
+
attn_outputs, self_attn_weights, present_key_value = self.self_attn(
|
1178 |
+
hidden_states=hidden_states,
|
1179 |
+
attention_mask=attention_mask,
|
1180 |
+
position_ids=position_ids,
|
1181 |
+
past_key_value=past_key_value,
|
1182 |
+
output_attentions=output_attentions,
|
1183 |
+
use_cache=use_cache,
|
1184 |
+
)
|
1185 |
+
|
1186 |
+
hidden_states = residual + self.resid_attn_dropout(attn_outputs)
|
1187 |
+
|
1188 |
+
residual = hidden_states
|
1189 |
+
hidden_states = self.post_attention_layernorm(hidden_states)
|
1190 |
+
hidden_states = self.mlp(hidden_states)
|
1191 |
+
hidden_states = residual + self.resid_mlp_dropout(hidden_states)
|
1192 |
+
|
1193 |
+
outputs = (hidden_states,)
|
1194 |
+
|
1195 |
+
if output_attentions:
|
1196 |
+
outputs += (self_attn_weights,)
|
1197 |
+
|
1198 |
+
if use_cache:
|
1199 |
+
outputs += (present_key_value,)
|
1200 |
+
|
1201 |
+
return outputs
|
1202 |
+
|
1203 |
+
|
1204 |
+
PHI3V_START_DOCSTRING = r"""
|
1205 |
+
This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the
|
1206 |
+
library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
|
1207 |
+
etc.)
|
1208 |
+
|
1209 |
+
This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass.
|
1210 |
+
Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage
|
1211 |
+
and behavior.
|
1212 |
+
|
1213 |
+
Parameters:
|
1214 |
+
config ([`Phi3VConfig`]):
|
1215 |
+
Model configuration class with all the parameters of the model. Initializing with a config file does not
|
1216 |
+
load the weights associated with the model, only the configuration. Check out the
|
1217 |
+
[`~PreTrainedModel.from_pretrained`] method to load the model weights.
|
1218 |
+
"""
|
1219 |
+
|
1220 |
+
|
1221 |
+
@add_start_docstrings(
|
1222 |
+
"The bare Phi-3-V model outputting raw hidden-states without any specific head on top.",
|
1223 |
+
PHI3V_START_DOCSTRING,
|
1224 |
+
)
|
1225 |
+
class Phi3VPreTrainedModel(PreTrainedModel):
|
1226 |
+
config_class = Phi3VConfig
|
1227 |
+
base_model_prefix = "model"
|
1228 |
+
supports_gradient_checkpointing = True
|
1229 |
+
_no_split_modules = ["Phi3DecoderLayer"]
|
1230 |
+
_skip_keys_device_placement = "past_key_values"
|
1231 |
+
_supports_flash_attn_2 = True
|
1232 |
+
_supports_sdpa = False
|
1233 |
+
_supports_cache_class = True
|
1234 |
+
|
1235 |
+
_version = "0.0.5"
|
1236 |
+
|
1237 |
+
def _init_weights(self, module):
|
1238 |
+
std = self.config.initializer_range
|
1239 |
+
if isinstance(module, nn.Linear):
|
1240 |
+
module.weight.data.normal_(mean=0.0, std=std)
|
1241 |
+
if module.bias is not None:
|
1242 |
+
module.bias.data.zero_()
|
1243 |
+
elif isinstance(module, nn.Embedding):
|
1244 |
+
module.weight.data.normal_(mean=0.0, std=std)
|
1245 |
+
if module.padding_idx is not None:
|
1246 |
+
module.weight.data[module.padding_idx].zero_()
|
1247 |
+
|
1248 |
+
|
1249 |
+
PHI3V_INPUTS_DOCSTRING = r"""
|
1250 |
+
Args:
|
1251 |
+
input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`):
|
1252 |
+
Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you provide
|
1253 |
+
it.
|
1254 |
+
|
1255 |
+
Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
|
1256 |
+
[`PreTrainedTokenizer.__call__`] for details.
|
1257 |
+
|
1258 |
+
[What are input IDs?](../glossary#input-ids)
|
1259 |
+
attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
|
1260 |
+
Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
|
1261 |
+
|
1262 |
+
- 1 for tokens that are **not masked**,
|
1263 |
+
- 0 for tokens that are **masked**.
|
1264 |
+
|
1265 |
+
[What are attention masks?](../glossary#attention-mask)
|
1266 |
+
|
1267 |
+
Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
|
1268 |
+
[`PreTrainedTokenizer.__call__`] for details.
|
1269 |
+
|
1270 |
+
If `past_key_values` is used, optionally only the last `input_ids` have to be input (see
|
1271 |
+
`past_key_values`).
|
1272 |
+
|
1273 |
+
If you want to change padding behavior, you should read [`modeling_opt._prepare_decoder_attention_mask`]
|
1274 |
+
and modify to your needs. See diagram 1 in [the paper](https://arxiv.org/abs/1910.13461) for more
|
1275 |
+
information on the default strategy.
|
1276 |
+
|
1277 |
+
- 1 indicates the head is **not masked**,
|
1278 |
+
- 0 indicates the head is **masked**.
|
1279 |
+
position_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
|
1280 |
+
Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0,
|
1281 |
+
config.n_positions - 1]`.
|
1282 |
+
|
1283 |
+
[What are position IDs?](../glossary#position-ids)
|
1284 |
+
past_key_values (`Cache` or `tuple(tuple(torch.FloatTensor))`, *optional*):
|
1285 |
+
Pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention
|
1286 |
+
blocks) that can be used to speed up sequential decoding. This typically consists in the `past_key_values`
|
1287 |
+
returned by the model at a previous stage of decoding, when `use_cache=True` or `config.use_cache=True`.
|
1288 |
+
|
1289 |
+
Two formats are allowed:
|
1290 |
+
- a [`~cache_utils.Cache`] instance;
|
1291 |
+
- Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of
|
1292 |
+
shape `(batch_size, num_heads, sequence_length, embed_size_per_head)`). This is also known as the legacy
|
1293 |
+
cache format.
|
1294 |
+
|
1295 |
+
The model will output the same cache format that is fed as input. If no `past_key_values` are passed, the
|
1296 |
+
legacy cache format will be returned.
|
1297 |
+
|
1298 |
+
If `past_key_values` are used, the user can optionally input only the last `input_ids` (those that don't
|
1299 |
+
have their past key value states given to this model) of shape `(batch_size, 1)` instead of all `input_ids`
|
1300 |
+
of shape `(batch_size, sequence_length)`.
|
1301 |
+
inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
|
1302 |
+
Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This
|
1303 |
+
is useful if you want more control over how to convert `input_ids` indices into associated vectors than the
|
1304 |
+
model's internal embedding lookup matrix.
|
1305 |
+
pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, image_size, image_size)):
|
1306 |
+
The tensors corresponding to the input images. Pixel values can be obtained using [`AutoImageProcessor`].
|
1307 |
+
See [`Phi3ImageProcessor.__call__`] for details.
|
1308 |
+
image_sizes (`torch.LongTensor` of shape `(batch_size, 2)`, *optional*):
|
1309 |
+
The sizes of the images in the batch, being (height, width) for each image.
|
1310 |
+
use_cache (`bool`, *optional*):
|
1311 |
+
If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see
|
1312 |
+
`past_key_values`).
|
1313 |
+
output_attentions (`bool`, *optional*):
|
1314 |
+
Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
|
1315 |
+
tensors for more detail.
|
1316 |
+
output_hidden_states (`bool`, *optional*):
|
1317 |
+
Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
|
1318 |
+
more detail.
|
1319 |
+
return_dict (`bool`, *optional*):
|
1320 |
+
Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
|
1321 |
+
"""
|
1322 |
+
|
1323 |
+
|
1324 |
+
@add_start_docstrings(
|
1325 |
+
"The bare Phi-3-V model outputting raw hidden-states without any specific head on top.",
|
1326 |
+
PHI3V_START_DOCSTRING,
|
1327 |
+
)
|
1328 |
+
class Phi3VModel(Phi3VPreTrainedModel):
|
1329 |
+
"""
|
1330 |
+
Transformer decoder consisting of *config.num_hidden_layers* layers. Each layer is a [`Phi3DecoderLayer`]
|
1331 |
+
|
1332 |
+
Args:
|
1333 |
+
config: Phi3Config
|
1334 |
+
"""
|
1335 |
+
|
1336 |
+
def __init__(self, config: Phi3VConfig):
|
1337 |
+
super().__init__(config)
|
1338 |
+
self.padding_idx = config.pad_token_id
|
1339 |
+
self.vocab_size = config.vocab_size
|
1340 |
+
|
1341 |
+
self.embed_tokens = nn.Embedding(config.vocab_size, config.hidden_size, self.padding_idx)
|
1342 |
+
self.embed_dropout = nn.Dropout(config.embd_pdrop)
|
1343 |
+
|
1344 |
+
self.vision_embed_tokens = None
|
1345 |
+
if isinstance(config.embd_layer, dict):
|
1346 |
+
# vision embedding layer
|
1347 |
+
embedding_config = {
|
1348 |
+
'embedding_cls': config.embd_layer['embedding_cls'],
|
1349 |
+
**config.embd_layer
|
1350 |
+
}
|
1351 |
+
self.vision_embed_tokens = Phi3ImageEmbedding(config, wte=self.embed_tokens, **embedding_config)
|
1352 |
+
# # set wte the same for vision embedding
|
1353 |
+
# self.vision_embed_tokens.wte.weight = self.embed_tokens.weight
|
1354 |
+
|
1355 |
+
self.layers = nn.ModuleList(
|
1356 |
+
[Phi3DecoderLayer(config, layer_idx) for layer_idx in range(config.num_hidden_layers)]
|
1357 |
+
)
|
1358 |
+
self._attn_implementation = config._attn_implementation
|
1359 |
+
self.norm = Phi3RMSNorm(config.hidden_size, eps=config.rms_norm_eps)
|
1360 |
+
|
1361 |
+
self.gradient_checkpointing = False
|
1362 |
+
# Initialize weights and apply final processing
|
1363 |
+
self.post_init()
|
1364 |
+
|
1365 |
+
def get_input_embeddings(self):
|
1366 |
+
return self.embed_tokens
|
1367 |
+
|
1368 |
+
def set_input_embeddings(self, value):
|
1369 |
+
self.embed_tokens = value
|
1370 |
+
|
1371 |
+
@add_start_docstrings_to_model_forward(PHI3V_INPUTS_DOCSTRING)
|
1372 |
+
def forward(
|
1373 |
+
self,
|
1374 |
+
input_ids: torch.LongTensor = None,
|
1375 |
+
attention_mask: Optional[torch.Tensor] = None,
|
1376 |
+
position_ids: Optional[torch.LongTensor] = None,
|
1377 |
+
past_key_values: Optional[List[torch.FloatTensor]] = None,
|
1378 |
+
inputs_embeds: Optional[torch.FloatTensor] = None,
|
1379 |
+
pixel_values: Optional[torch.FloatTensor] = None,
|
1380 |
+
image_sizes: Optional[torch.LongTensor] = None,
|
1381 |
+
use_cache: Optional[bool] = None,
|
1382 |
+
output_attentions: Optional[bool] = None,
|
1383 |
+
output_hidden_states: Optional[bool] = None,
|
1384 |
+
return_dict: Optional[bool] = None,
|
1385 |
+
) -> Union[Tuple, BaseModelOutputWithPast]:
|
1386 |
+
output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
|
1387 |
+
output_hidden_states = (
|
1388 |
+
output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
|
1389 |
+
)
|
1390 |
+
use_cache = use_cache if use_cache is not None else self.config.use_cache
|
1391 |
+
|
1392 |
+
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
|
1393 |
+
|
1394 |
+
# retrieve input_ids and inputs_embeds
|
1395 |
+
if input_ids is not None and inputs_embeds is not None:
|
1396 |
+
raise ValueError("You cannot specify both input_ids and inputs_embeds at the same time")
|
1397 |
+
elif input_ids is not None:
|
1398 |
+
batch_size, seq_length = input_ids.shape[:2]
|
1399 |
+
elif inputs_embeds is not None:
|
1400 |
+
batch_size, seq_length = inputs_embeds.shape[:2]
|
1401 |
+
else:
|
1402 |
+
raise ValueError("You have to specify either input_ids or inputs_embeds")
|
1403 |
+
|
1404 |
+
past_key_values_length = 0
|
1405 |
+
|
1406 |
+
if self.gradient_checkpointing and self.training:
|
1407 |
+
if use_cache:
|
1408 |
+
logger.warning_once(
|
1409 |
+
"`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..."
|
1410 |
+
)
|
1411 |
+
use_cache = False
|
1412 |
+
|
1413 |
+
if use_cache:
|
1414 |
+
use_legacy_cache = not isinstance(past_key_values, Cache)
|
1415 |
+
if use_legacy_cache:
|
1416 |
+
past_key_values = DynamicCache.from_legacy_cache(past_key_values)
|
1417 |
+
past_key_values_length = past_key_values.get_usable_length(seq_length)
|
1418 |
+
|
1419 |
+
if position_ids is None:
|
1420 |
+
device = input_ids.device if input_ids is not None else inputs_embeds.device
|
1421 |
+
position_ids = torch.arange(
|
1422 |
+
past_key_values_length, seq_length + past_key_values_length, dtype=torch.long, device=device
|
1423 |
+
)
|
1424 |
+
position_ids = position_ids.unsqueeze(0).view(-1, seq_length)
|
1425 |
+
else:
|
1426 |
+
position_ids = position_ids.view(-1, seq_length).long()
|
1427 |
+
|
1428 |
+
if inputs_embeds is None:
|
1429 |
+
if pixel_values is not None and image_sizes is not None:
|
1430 |
+
assert self.vision_embed_tokens is not None, "Vision embedding layer is not defined"
|
1431 |
+
inputs_embeds = self.vision_embed_tokens(input_ids, pixel_values=pixel_values, image_sizes=image_sizes)
|
1432 |
+
else:
|
1433 |
+
inputs_embeds = self.embed_tokens(input_ids)
|
1434 |
+
|
1435 |
+
if attention_mask is not None and self._attn_implementation == "flash_attention_2" and use_cache:
|
1436 |
+
is_padding_right = attention_mask[:, -1].sum().item() != batch_size
|
1437 |
+
if is_padding_right:
|
1438 |
+
raise ValueError(
|
1439 |
+
"You are attempting to perform batched generation with padding_side='right'"
|
1440 |
+
" this may lead to unexpected behaviour for Flash Attention version of Phi3. Make sure to "
|
1441 |
+
" call `tokenizer.padding_side = 'left'` before tokenizing the input. "
|
1442 |
+
)
|
1443 |
+
|
1444 |
+
if self._attn_implementation == "flash_attention_2":
|
1445 |
+
# 2d mask is passed through the layers
|
1446 |
+
attention_mask = attention_mask if (attention_mask is not None and 0 in attention_mask) else None
|
1447 |
+
else:
|
1448 |
+
# 4d mask is passed through the layers
|
1449 |
+
attention_mask = _prepare_4d_causal_attention_mask(
|
1450 |
+
attention_mask,
|
1451 |
+
(batch_size, seq_length),
|
1452 |
+
inputs_embeds,
|
1453 |
+
past_key_values_length,
|
1454 |
+
sliding_window=self.config.sliding_window,
|
1455 |
+
)
|
1456 |
+
|
1457 |
+
hidden_states = inputs_embeds
|
1458 |
+
|
1459 |
+
# decoder layers
|
1460 |
+
all_hidden_states = () if output_hidden_states else None
|
1461 |
+
all_self_attns = () if output_attentions else None
|
1462 |
+
next_decoder_cache = None
|
1463 |
+
|
1464 |
+
for decoder_layer in self.layers:
|
1465 |
+
if output_hidden_states:
|
1466 |
+
all_hidden_states += (hidden_states,)
|
1467 |
+
|
1468 |
+
if self.gradient_checkpointing and self.training:
|
1469 |
+
layer_outputs = self._gradient_checkpointing_func(
|
1470 |
+
decoder_layer.__call__,
|
1471 |
+
hidden_states,
|
1472 |
+
attention_mask,
|
1473 |
+
position_ids,
|
1474 |
+
past_key_values,
|
1475 |
+
output_attentions,
|
1476 |
+
use_cache,
|
1477 |
+
)
|
1478 |
+
else:
|
1479 |
+
layer_outputs = decoder_layer(
|
1480 |
+
hidden_states,
|
1481 |
+
attention_mask=attention_mask,
|
1482 |
+
position_ids=position_ids,
|
1483 |
+
past_key_value=past_key_values,
|
1484 |
+
output_attentions=output_attentions,
|
1485 |
+
use_cache=use_cache,
|
1486 |
+
)
|
1487 |
+
|
1488 |
+
hidden_states = layer_outputs[0]
|
1489 |
+
|
1490 |
+
if use_cache:
|
1491 |
+
next_decoder_cache = layer_outputs[2 if output_attentions else 1]
|
1492 |
+
|
1493 |
+
if output_attentions:
|
1494 |
+
all_self_attns += (layer_outputs[1],)
|
1495 |
+
|
1496 |
+
hidden_states = self.norm(hidden_states)
|
1497 |
+
|
1498 |
+
# add hidden states from the last decoder layer
|
1499 |
+
if output_hidden_states:
|
1500 |
+
all_hidden_states += (hidden_states,)
|
1501 |
+
|
1502 |
+
next_cache = None
|
1503 |
+
if use_cache:
|
1504 |
+
next_cache = next_decoder_cache.to_legacy_cache() if use_legacy_cache else next_decoder_cache
|
1505 |
+
if not return_dict:
|
1506 |
+
return tuple(v for v in [hidden_states, next_cache, all_hidden_states, all_self_attns] if v is not None)
|
1507 |
+
return BaseModelOutputWithPast(
|
1508 |
+
last_hidden_state=hidden_states,
|
1509 |
+
past_key_values=next_cache,
|
1510 |
+
hidden_states=all_hidden_states,
|
1511 |
+
attentions=all_self_attns,
|
1512 |
+
)
|
1513 |
+
|
1514 |
+
|
1515 |
+
class Phi3VForCausalLM(Phi3VPreTrainedModel):
|
1516 |
+
_tied_weights_keys = ["lm_head.weight"]
|
1517 |
+
|
1518 |
+
# Copied from transformers.models.llama.modeling_llama.LlamaForCausalLM.__init__ with Llama->Phi3
|
1519 |
+
def __init__(self, config):
|
1520 |
+
super().__init__(config)
|
1521 |
+
self.model = Phi3VModel(config)
|
1522 |
+
self.vocab_size = config.vocab_size
|
1523 |
+
self.lm_head = nn.Linear(config.hidden_size, config.vocab_size, bias=False)
|
1524 |
+
|
1525 |
+
# Initialize weights and apply final processing
|
1526 |
+
self.post_init()
|
1527 |
+
|
1528 |
+
# Copied from transformers.models.llama.modeling_llama.LlamaForCausalLM.get_input_embeddings
|
1529 |
+
def get_input_embeddings(self):
|
1530 |
+
return self.model.embed_tokens
|
1531 |
+
|
1532 |
+
# Copied from transformers.models.llama.modeling_llama.LlamaForCausalLM.set_input_embeddings
|
1533 |
+
def set_input_embeddings(self, value):
|
1534 |
+
self.model.embed_tokens = value
|
1535 |
+
|
1536 |
+
# Copied from transformers.models.llama.modeling_llama.LlamaForCausalLM.get_output_embeddings
|
1537 |
+
def get_output_embeddings(self):
|
1538 |
+
return self.lm_head
|
1539 |
+
|
1540 |
+
# Copied from transformers.models.llama.modeling_llama.LlamaForCausalLM.set_output_embeddings
|
1541 |
+
def set_output_embeddings(self, new_embeddings):
|
1542 |
+
self.lm_head = new_embeddings
|
1543 |
+
|
1544 |
+
# Copied from transformers.models.llama.modeling_llama.LlamaForCausalLM.set_decoder
|
1545 |
+
def set_decoder(self, decoder):
|
1546 |
+
self.model = decoder
|
1547 |
+
|
1548 |
+
# Copied from transformers.models.llama.modeling_llama.LlamaForCausalLM.get_decoder
|
1549 |
+
def get_decoder(self):
|
1550 |
+
return self.model
|
1551 |
+
|
1552 |
+
# Ignore copy
|
1553 |
+
@add_start_docstrings_to_model_forward(PHI3V_INPUTS_DOCSTRING)
|
1554 |
+
@replace_return_docstrings(output_type=CausalLMOutputWithPast, config_class=_CONFIG_FOR_DOC)
|
1555 |
+
def forward(
|
1556 |
+
self,
|
1557 |
+
input_ids: torch.LongTensor = None,
|
1558 |
+
attention_mask: Optional[torch.Tensor] = None,
|
1559 |
+
position_ids: Optional[torch.LongTensor] = None,
|
1560 |
+
past_key_values: Optional[List[torch.FloatTensor]] = None,
|
1561 |
+
inputs_embeds: Optional[torch.FloatTensor] = None,
|
1562 |
+
pixel_values: Optional[torch.FloatTensor] = None,
|
1563 |
+
image_sizes: Optional[torch.LongTensor] = None,
|
1564 |
+
labels: Optional[torch.LongTensor] = None,
|
1565 |
+
use_cache: Optional[bool] = None,
|
1566 |
+
output_attentions: Optional[bool] = None,
|
1567 |
+
output_hidden_states: Optional[bool] = None,
|
1568 |
+
return_dict: Optional[bool] = None,
|
1569 |
+
) -> Union[Tuple, CausalLMOutputWithPast]:
|
1570 |
+
r"""
|
1571 |
+
Args:
|
1572 |
+
labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
|
1573 |
+
Labels for computing the masked language modeling loss. Indices should either be in `[0, ...,
|
1574 |
+
config.vocab_size]` or -100 (see `input_ids` docstring). Tokens with indices set to `-100` are ignored
|
1575 |
+
(masked), the loss is only computed for the tokens with labels in `[0, ..., config.vocab_size]`.
|
1576 |
+
|
1577 |
+
Returns:
|
1578 |
+
|
1579 |
+
Example:
|
1580 |
+
|
1581 |
+
```python
|
1582 |
+
>>> from transformers import AutoTokenizer, Phi3ForCausalLM
|
1583 |
+
|
1584 |
+
>>> model = Phi3ForCausalLM.from_pretrained("microsoft/phi-3-mini-4k-instruct")
|
1585 |
+
>>> tokenizer = AutoTokenizer.from_pretrained("microsoft/phi-3-mini-4k-instruct")
|
1586 |
+
|
1587 |
+
>>> prompt = "This is an example script ."
|
1588 |
+
>>> inputs = tokenizer(prompt, return_tensors="pt")
|
1589 |
+
|
1590 |
+
>>> # Generate
|
1591 |
+
>>> generate_ids = model.generate(inputs.input_ids, max_length=30)
|
1592 |
+
>>> tokenizer.batch_decode(generate_ids, skip_special_tokens=True, clean_up_tokenization_spaces=False)[0]
|
1593 |
+
'This is an example script .\n Certainly! Below is a sample script that demonstrates a simple task, such as calculating the sum'
|
1594 |
+
```"""
|
1595 |
+
|
1596 |
+
output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
|
1597 |
+
output_hidden_states = (
|
1598 |
+
output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
|
1599 |
+
)
|
1600 |
+
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
|
1601 |
+
|
1602 |
+
# decoder outputs consists of (dec_features, layer_state, dec_hidden, dec_attn)
|
1603 |
+
outputs = self.model(
|
1604 |
+
input_ids=input_ids,
|
1605 |
+
attention_mask=attention_mask,
|
1606 |
+
position_ids=position_ids,
|
1607 |
+
past_key_values=past_key_values,
|
1608 |
+
inputs_embeds=inputs_embeds,
|
1609 |
+
pixel_values=pixel_values,
|
1610 |
+
image_sizes=image_sizes,
|
1611 |
+
use_cache=use_cache,
|
1612 |
+
output_attentions=output_attentions,
|
1613 |
+
output_hidden_states=output_hidden_states,
|
1614 |
+
return_dict=return_dict,
|
1615 |
+
)
|
1616 |
+
|
1617 |
+
hidden_states = outputs[0]
|
1618 |
+
logits = self.lm_head(hidden_states)
|
1619 |
+
logits = logits.float()
|
1620 |
+
|
1621 |
+
loss = None
|
1622 |
+
if labels is not None:
|
1623 |
+
# Shift so that tokens < n predict n
|
1624 |
+
shift_logits = logits[..., :-1, :].contiguous()
|
1625 |
+
shift_labels = labels[..., 1:].contiguous()
|
1626 |
+
# Flatten the tokens
|
1627 |
+
loss_fct = CrossEntropyLoss()
|
1628 |
+
shift_logits = shift_logits.view(-1, self.config.vocab_size)
|
1629 |
+
shift_labels = shift_labels.view(-1)
|
1630 |
+
# Enable model parallelism
|
1631 |
+
shift_labels = shift_labels.to(shift_logits.device)
|
1632 |
+
loss = loss_fct(shift_logits, shift_labels)
|
1633 |
+
|
1634 |
+
if not return_dict:
|
1635 |
+
output = (logits,) + outputs[1:]
|
1636 |
+
return (loss,) + output if loss is not None else output
|
1637 |
+
|
1638 |
+
return CausalLMOutputWithPast(
|
1639 |
+
loss=loss,
|
1640 |
+
logits=logits,
|
1641 |
+
past_key_values=outputs.past_key_values,
|
1642 |
+
hidden_states=outputs.hidden_states,
|
1643 |
+
attentions=outputs.attentions,
|
1644 |
+
)
|
1645 |
+
|
1646 |
+
# Copied from transformers.models.persimmon.modeling_persimmon.PersimmonForCausalLM.prepare_inputs_for_generation
|
1647 |
+
def prepare_inputs_for_generation(
|
1648 |
+
self, input_ids, past_key_values=None, attention_mask=None, inputs_embeds=None, pixel_values=None, image_sizes=None, **kwargs
|
1649 |
+
):
|
1650 |
+
if past_key_values is not None:
|
1651 |
+
if isinstance(past_key_values, Cache):
|
1652 |
+
cache_length = past_key_values.get_seq_length()
|
1653 |
+
past_length = past_key_values.seen_tokens
|
1654 |
+
max_cache_length = past_key_values.get_max_length()
|
1655 |
+
else:
|
1656 |
+
cache_length = past_length = past_key_values[0][0].shape[2]
|
1657 |
+
max_cache_length = None
|
1658 |
+
|
1659 |
+
# Keep only the unprocessed tokens:
|
1660 |
+
# 1 - If the length of the attention_mask exceeds the length of input_ids, then we are in a setting where
|
1661 |
+
# some of the inputs are exclusively passed as part of the cache (e.g. when passing input_embeds as
|
1662 |
+
# input)
|
1663 |
+
if attention_mask is not None and attention_mask.shape[1] > input_ids.shape[1]:
|
1664 |
+
input_ids = input_ids[:, -(attention_mask.shape[1] - past_length) :]
|
1665 |
+
# 2 - If the past_length is smaller than input_ids', then input_ids holds all input tokens. We can discard
|
1666 |
+
# input_ids based on the past_length.
|
1667 |
+
elif past_length < input_ids.shape[1]:
|
1668 |
+
input_ids = input_ids[:, past_length:]
|
1669 |
+
# 3 - Otherwise (past_length >= input_ids.shape[1]), let's assume input_ids only has unprocessed tokens.
|
1670 |
+
|
1671 |
+
# If we are about to go beyond the maximum cache length, we need to crop the input attention mask.
|
1672 |
+
if (
|
1673 |
+
max_cache_length is not None
|
1674 |
+
and attention_mask is not None
|
1675 |
+
and cache_length + input_ids.shape[1] > max_cache_length
|
1676 |
+
):
|
1677 |
+
attention_mask = attention_mask[:, -max_cache_length:]
|
1678 |
+
|
1679 |
+
position_ids = kwargs.get("position_ids", None)
|
1680 |
+
if attention_mask is not None and position_ids is None:
|
1681 |
+
# create position_ids on the fly for batch generation
|
1682 |
+
position_ids = attention_mask.long().cumsum(-1) - 1
|
1683 |
+
position_ids.masked_fill_(attention_mask == 0, 1)
|
1684 |
+
if past_key_values:
|
1685 |
+
position_ids = position_ids[:, -input_ids.shape[1] :]
|
1686 |
+
|
1687 |
+
# if `inputs_embeds` are passed, we only want to use them in the 1st generation step
|
1688 |
+
if inputs_embeds is not None and past_key_values is None:
|
1689 |
+
model_inputs = {"inputs_embeds": inputs_embeds}
|
1690 |
+
else:
|
1691 |
+
model_inputs = {"input_ids": input_ids}
|
1692 |
+
|
1693 |
+
model_inputs.update(
|
1694 |
+
{
|
1695 |
+
"position_ids": position_ids,
|
1696 |
+
"past_key_values": past_key_values,
|
1697 |
+
"use_cache": kwargs.get("use_cache"),
|
1698 |
+
"attention_mask": attention_mask,
|
1699 |
+
"pixel_values": pixel_values,
|
1700 |
+
"image_sizes": image_sizes,
|
1701 |
+
}
|
1702 |
+
)
|
1703 |
+
return model_inputs
|
1704 |
+
|
1705 |
+
@staticmethod
|
1706 |
+
# Copied from transformers.models.llama.modeling_llama.LlamaForCausalLM._reorder_cache
|
1707 |
+
def _reorder_cache(past_key_values, beam_idx):
|
1708 |
+
reordered_past = ()
|
1709 |
+
for layer_past in past_key_values:
|
1710 |
+
reordered_past += (
|
1711 |
+
tuple(past_state.index_select(0, beam_idx.to(past_state.device)) for past_state in layer_past),
|
1712 |
+
)
|
1713 |
+
return reordered_past
|
1714 |
+
|
1715 |
+
|
1716 |
+
@add_start_docstrings(
|
1717 |
+
"""
|
1718 |
+
The [`Phi3VModel`] with a sequence classification head on top (linear layer).
|
1719 |
+
|
1720 |
+
[`Phi3VForSequenceClassification`] uses the last token in order to do the classification, as other causal models
|
1721 |
+
(e.g. GPT-2) do.
|
1722 |
+
|
1723 |
+
Since it does classification on the last token, it requires to know the position of the last token. If a
|
1724 |
+
`pad_token_id` is defined in the configuration, it finds the last token that is not a padding token in each row. If
|
1725 |
+
no `pad_token_id` is defined, it simply takes the last value in each row of the batch. Since it cannot guess the
|
1726 |
+
padding tokens when `inputs_embeds` are passed instead of `input_ids`, it does the same (take the last value in
|
1727 |
+
each row of the batch).
|
1728 |
+
""",
|
1729 |
+
PHI3V_START_DOCSTRING,
|
1730 |
+
)
|
1731 |
+
# Copied from transformers.models.llama.modeling_llama.LlamaForSequenceClassification with Llama->Phi3, LLAMA->PHI3, self.transformer->self.model, transformer_outputs->model_outputs
|
1732 |
+
class Phi3VForSequenceClassification(Phi3VPreTrainedModel):
|
1733 |
+
def __init__(self, config):
|
1734 |
+
super().__init__(config)
|
1735 |
+
self.num_labels = config.num_labels
|
1736 |
+
self.model = Phi3VModel(config)
|
1737 |
+
self.score = nn.Linear(config.hidden_size, self.num_labels, bias=False)
|
1738 |
+
|
1739 |
+
# Initialize weights and apply final processing
|
1740 |
+
self.post_init()
|
1741 |
+
|
1742 |
+
def get_input_embeddings(self):
|
1743 |
+
return self.model.embed_tokens
|
1744 |
+
|
1745 |
+
def set_input_embeddings(self, value):
|
1746 |
+
self.model.embed_tokens = value
|
1747 |
+
|
1748 |
+
@add_start_docstrings_to_model_forward(PHI3V_INPUTS_DOCSTRING)
|
1749 |
+
def forward(
|
1750 |
+
self,
|
1751 |
+
input_ids: torch.LongTensor = None,
|
1752 |
+
attention_mask: Optional[torch.Tensor] = None,
|
1753 |
+
position_ids: Optional[torch.LongTensor] = None,
|
1754 |
+
past_key_values: Optional[Union[Cache, List[torch.FloatTensor]]] = None,
|
1755 |
+
inputs_embeds: Optional[torch.FloatTensor] = None,
|
1756 |
+
pixel_values: Optional[torch.FloatTensor] = None,
|
1757 |
+
image_sizes: Optional[torch.LongTensor] = None,
|
1758 |
+
labels: Optional[torch.LongTensor] = None,
|
1759 |
+
use_cache: Optional[bool] = None,
|
1760 |
+
output_attentions: Optional[bool] = None,
|
1761 |
+
output_hidden_states: Optional[bool] = None,
|
1762 |
+
return_dict: Optional[bool] = None,
|
1763 |
+
) -> Union[Tuple, SequenceClassifierOutputWithPast]:
|
1764 |
+
r"""
|
1765 |
+
labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
|
1766 |
+
Labels for computing the sequence classification/regression loss. Indices should be in `[0, ...,
|
1767 |
+
config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
|
1768 |
+
`config.num_labels > 1` a classification loss is computed (Cross-Entropy).
|
1769 |
+
"""
|
1770 |
+
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
|
1771 |
+
|
1772 |
+
model_outputs = self.model(
|
1773 |
+
input_ids,
|
1774 |
+
attention_mask=attention_mask,
|
1775 |
+
position_ids=position_ids,
|
1776 |
+
past_key_values=past_key_values,
|
1777 |
+
inputs_embeds=inputs_embeds,
|
1778 |
+
pixel_values=pixel_values,
|
1779 |
+
image_sizes=image_sizes,
|
1780 |
+
use_cache=use_cache,
|
1781 |
+
output_attentions=output_attentions,
|
1782 |
+
output_hidden_states=output_hidden_states,
|
1783 |
+
return_dict=return_dict,
|
1784 |
+
)
|
1785 |
+
hidden_states = model_outputs[0]
|
1786 |
+
logits = self.score(hidden_states)
|
1787 |
+
|
1788 |
+
if input_ids is not None:
|
1789 |
+
batch_size = input_ids.shape[0]
|
1790 |
+
else:
|
1791 |
+
batch_size = inputs_embeds.shape[0]
|
1792 |
+
|
1793 |
+
if self.config.pad_token_id is None and batch_size != 1:
|
1794 |
+
raise ValueError("Cannot handle batch sizes > 1 if no padding token is defined.")
|
1795 |
+
if self.config.pad_token_id is None:
|
1796 |
+
sequence_lengths = -1
|
1797 |
+
else:
|
1798 |
+
if input_ids is not None:
|
1799 |
+
# if no pad token found, use modulo instead of reverse indexing for ONNX compatibility
|
1800 |
+
sequence_lengths = torch.eq(input_ids, self.config.pad_token_id).int().argmax(-1) - 1
|
1801 |
+
sequence_lengths = sequence_lengths % input_ids.shape[-1]
|
1802 |
+
sequence_lengths = sequence_lengths.to(logits.device)
|
1803 |
+
else:
|
1804 |
+
sequence_lengths = -1
|
1805 |
+
|
1806 |
+
pooled_logits = logits[torch.arange(batch_size, device=logits.device), sequence_lengths]
|
1807 |
+
|
1808 |
+
loss = None
|
1809 |
+
if labels is not None:
|
1810 |
+
labels = labels.to(logits.device)
|
1811 |
+
if self.config.problem_type is None:
|
1812 |
+
if self.num_labels == 1:
|
1813 |
+
self.config.problem_type = "regression"
|
1814 |
+
elif self.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int):
|
1815 |
+
self.config.problem_type = "single_label_classification"
|
1816 |
+
else:
|
1817 |
+
self.config.problem_type = "multi_label_classification"
|
1818 |
+
|
1819 |
+
if self.config.problem_type == "regression":
|
1820 |
+
loss_fct = MSELoss()
|
1821 |
+
if self.num_labels == 1:
|
1822 |
+
loss = loss_fct(pooled_logits.squeeze(), labels.squeeze())
|
1823 |
+
else:
|
1824 |
+
loss = loss_fct(pooled_logits, labels)
|
1825 |
+
elif self.config.problem_type == "single_label_classification":
|
1826 |
+
loss_fct = CrossEntropyLoss()
|
1827 |
+
loss = loss_fct(pooled_logits.view(-1, self.num_labels), labels.view(-1))
|
1828 |
+
elif self.config.problem_type == "multi_label_classification":
|
1829 |
+
loss_fct = BCEWithLogitsLoss()
|
1830 |
+
loss = loss_fct(pooled_logits, labels)
|
1831 |
+
if not return_dict:
|
1832 |
+
output = (pooled_logits,) + model_outputs[1:]
|
1833 |
+
return ((loss,) + output) if loss is not None else output
|
1834 |
+
|
1835 |
+
return SequenceClassifierOutputWithPast(
|
1836 |
+
loss=loss,
|
1837 |
+
logits=pooled_logits,
|
1838 |
+
past_key_values=model_outputs.past_key_values,
|
1839 |
+
hidden_states=model_outputs.hidden_states,
|
1840 |
+
attentions=model_outputs.attentions,
|
1841 |
+
)
|
1842 |
+
|
1843 |
+
|
1844 |
+
@add_start_docstrings(
|
1845 |
+
"""
|
1846 |
+
[`Phi3VModel`] with a token classification head on top (a linear layer on top of the hidden-states output) e.g. for
|
1847 |
+
Named-Entity-Recognition (NER) tasks.
|
1848 |
+
""",
|
1849 |
+
PHI3V_START_DOCSTRING,
|
1850 |
+
)
|
1851 |
+
# Copied from transformers.models.mpt.modeling_mpt.MptForTokenClassification with Mpt->Phi3,MPT->PHI3,self.transformer->self.model,transformer_outputs->model_outputs
|
1852 |
+
class Phi3VForTokenClassification(Phi3VPreTrainedModel):
|
1853 |
+
def __init__(self, config: Phi3VConfig):
|
1854 |
+
super().__init__(config)
|
1855 |
+
self.num_labels = config.num_labels
|
1856 |
+
|
1857 |
+
self.model = Phi3VModel(config)
|
1858 |
+
if hasattr(config, "classifier_dropout") and config.classifier_dropout is not None:
|
1859 |
+
classifier_dropout = config.classifier_dropout
|
1860 |
+
elif hasattr(config, "hidden_dropout") and config.hidden_dropout is not None:
|
1861 |
+
classifier_dropout = config.hidden_dropout
|
1862 |
+
else:
|
1863 |
+
classifier_dropout = 0.1
|
1864 |
+
self.dropout = nn.Dropout(classifier_dropout)
|
1865 |
+
self.classifier = nn.Linear(config.hidden_size, config.num_labels)
|
1866 |
+
|
1867 |
+
# Initialize weights and apply final processing
|
1868 |
+
self.post_init()
|
1869 |
+
|
1870 |
+
@add_start_docstrings_to_model_forward(PHI3V_INPUTS_DOCSTRING)
|
1871 |
+
@add_code_sample_docstrings(
|
1872 |
+
checkpoint=_CHECKPOINT_FOR_DOC,
|
1873 |
+
output_type=TokenClassifierOutput,
|
1874 |
+
config_class=_CONFIG_FOR_DOC,
|
1875 |
+
)
|
1876 |
+
def forward(
|
1877 |
+
self,
|
1878 |
+
input_ids: Optional[torch.LongTensor] = None,
|
1879 |
+
past_key_values: Optional[Tuple[Tuple[torch.Tensor, torch.Tensor], ...]] = None,
|
1880 |
+
attention_mask: Optional[torch.Tensor] = None,
|
1881 |
+
inputs_embeds: Optional[torch.Tensor] = None,
|
1882 |
+
pixel_values: Optional[torch.FloatTensor] = None,
|
1883 |
+
image_sizes: Optional[torch.LongTensor] = None,
|
1884 |
+
labels: Optional[torch.Tensor] = None,
|
1885 |
+
use_cache: Optional[bool] = None,
|
1886 |
+
output_attentions: Optional[bool] = None,
|
1887 |
+
output_hidden_states: Optional[bool] = None,
|
1888 |
+
return_dict: Optional[bool] = None,
|
1889 |
+
**deprecated_arguments,
|
1890 |
+
) -> Union[Tuple[torch.Tensor], TokenClassifierOutput]:
|
1891 |
+
r"""
|
1892 |
+
labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
|
1893 |
+
Labels for computing the sequence classification/regression loss. Indices should be in `[0, ...,
|
1894 |
+
config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
|
1895 |
+
`config.num_labels > 1` a classification loss is computed (Cross-Entropy).
|
1896 |
+
"""
|
1897 |
+
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
|
1898 |
+
|
1899 |
+
model_outputs = self.model(
|
1900 |
+
input_ids,
|
1901 |
+
past_key_values=past_key_values,
|
1902 |
+
attention_mask=attention_mask,
|
1903 |
+
inputs_embeds=inputs_embeds,
|
1904 |
+
pixel_values=pixel_values,
|
1905 |
+
image_sizes=image_sizes,
|
1906 |
+
use_cache=use_cache,
|
1907 |
+
output_attentions=output_attentions,
|
1908 |
+
output_hidden_states=output_hidden_states,
|
1909 |
+
return_dict=return_dict,
|
1910 |
+
)
|
1911 |
+
|
1912 |
+
hidden_states = model_outputs[0]
|
1913 |
+
hidden_states = self.dropout(hidden_states)
|
1914 |
+
logits = self.classifier(hidden_states)
|
1915 |
+
|
1916 |
+
loss = None
|
1917 |
+
if labels is not None:
|
1918 |
+
# move labels to correct device to enable model parallelism
|
1919 |
+
labels = labels.to(logits.device)
|
1920 |
+
batch_size, seq_length = labels.shape
|
1921 |
+
loss_fct = CrossEntropyLoss()
|
1922 |
+
loss = loss_fct(
|
1923 |
+
logits.view(batch_size * seq_length, self.num_labels), labels.view(batch_size * seq_length)
|
1924 |
+
)
|
1925 |
+
|
1926 |
+
if not return_dict:
|
1927 |
+
output = (logits,) + model_outputs[2:]
|
1928 |
+
return ((loss,) + output) if loss is not None else output
|
1929 |
+
|
1930 |
+
return TokenClassifierOutput(
|
1931 |
+
loss=loss,
|
1932 |
+
logits=logits,
|
1933 |
+
hidden_states=model_outputs.hidden_states,
|
1934 |
+
attentions=model_outputs.attentions,
|
1935 |
+
)
|
preprocessor_config.json
ADDED
@@ -0,0 +1,21 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
{
|
2 |
+
"auto_map": {
|
3 |
+
"AutoImageProcessor": "processing_phi3_v.Phi3VImageProcessor",
|
4 |
+
"AutoProcessor": "processing_phi3_v.Phi3VProcessor"
|
5 |
+
},
|
6 |
+
"do_convert_rgb": true,
|
7 |
+
"image_mean": [
|
8 |
+
0.48145466,
|
9 |
+
0.4578275,
|
10 |
+
0.40821073
|
11 |
+
],
|
12 |
+
"image_processor_type": "Phi3VImageProcessor",
|
13 |
+
"image_std": [
|
14 |
+
0.26862954,
|
15 |
+
0.26130258,
|
16 |
+
0.27577711
|
17 |
+
],
|
18 |
+
"num_crops": 16,
|
19 |
+
"num_img_tokens": 144,
|
20 |
+
"processor_class": "Phi3VProcessor"
|
21 |
+
}
|
processing_phi3_v.py
ADDED
@@ -0,0 +1,478 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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|
1 |
+
# coding=utf-8
|
2 |
+
# Copyright 2024 Microsoft and the HuggingFace Inc. team. All rights reserved.
|
3 |
+
#
|
4 |
+
# Licensed under the Apache License, Version 2.0 (the "License");
|
5 |
+
# you may not use this file except in compliance with the License.
|
6 |
+
# You may obtain a copy of the License at
|
7 |
+
#
|
8 |
+
# http://www.apache.org/licenses/LICENSE-2.0
|
9 |
+
#
|
10 |
+
# Unless required by applicable law or agreed to in writing, software
|
11 |
+
# distributed under the License is distributed on an "AS IS" BASIS,
|
12 |
+
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
13 |
+
# See the License for the specific language governing permissions and
|
14 |
+
# limitations under the License.
|
15 |
+
|
16 |
+
"""
|
17 |
+
Processor class for Phi3-V.
|
18 |
+
"""
|
19 |
+
import re
|
20 |
+
from typing import List, Optional, Union
|
21 |
+
|
22 |
+
import torch
|
23 |
+
|
24 |
+
import transformers
|
25 |
+
from transformers.feature_extraction_utils import BatchFeature
|
26 |
+
from transformers.image_utils import ImageInput
|
27 |
+
from transformers.processing_utils import ProcessorMixin
|
28 |
+
from transformers.tokenization_utils_base import PaddingStrategy, TextInput, TruncationStrategy
|
29 |
+
from transformers.utils import TensorType
|
30 |
+
|
31 |
+
|
32 |
+
"""Image processor class for Phi3-V."""
|
33 |
+
|
34 |
+
from typing import List, Optional, Union
|
35 |
+
|
36 |
+
import numpy as np
|
37 |
+
|
38 |
+
from transformers.image_processing_utils import BaseImageProcessor, BatchFeature
|
39 |
+
from transformers.image_transforms import (
|
40 |
+
convert_to_rgb,
|
41 |
+
)
|
42 |
+
from transformers.image_utils import (
|
43 |
+
OPENAI_CLIP_MEAN,
|
44 |
+
OPENAI_CLIP_STD,
|
45 |
+
ImageInput,
|
46 |
+
make_list_of_images,
|
47 |
+
valid_images,
|
48 |
+
)
|
49 |
+
from transformers.utils import TensorType, is_vision_available, logging
|
50 |
+
|
51 |
+
from transformers import AutoImageProcessor
|
52 |
+
|
53 |
+
logger = logging.get_logger(__name__)
|
54 |
+
|
55 |
+
|
56 |
+
if is_vision_available():
|
57 |
+
from PIL import Image
|
58 |
+
|
59 |
+
import torch
|
60 |
+
import torchvision
|
61 |
+
|
62 |
+
def padding_336(b):
|
63 |
+
width, height = b.size
|
64 |
+
tar = int(np.ceil(height / 336) * 336)
|
65 |
+
top_padding = int((tar - height)/2)
|
66 |
+
bottom_padding = tar - height - top_padding
|
67 |
+
left_padding = 0
|
68 |
+
right_padding = 0
|
69 |
+
b = torchvision.transforms.functional.pad(b, [left_padding, top_padding, right_padding, bottom_padding], fill=[255,255,255])
|
70 |
+
|
71 |
+
return b
|
72 |
+
|
73 |
+
def calc_padded_size(width, height, padding_unit=336):
|
74 |
+
target_height = int(np.ceil(height / padding_unit) * padding_unit)
|
75 |
+
top_padding = int((target_height - height) / 2)
|
76 |
+
bottom_padding = target_height - height - top_padding
|
77 |
+
left_padding = 0
|
78 |
+
right_padding = 0
|
79 |
+
padded_width = width + left_padding + right_padding
|
80 |
+
padded_height = height + top_padding + bottom_padding
|
81 |
+
return padded_width, padded_height
|
82 |
+
|
83 |
+
def HD_transform(img, hd_num=16):
|
84 |
+
width, height = img.size
|
85 |
+
trans = False
|
86 |
+
if width < height:
|
87 |
+
img = img.transpose(Image.TRANSPOSE)
|
88 |
+
trans = True
|
89 |
+
width, height = img.size
|
90 |
+
ratio = (width/ height)
|
91 |
+
scale = 1
|
92 |
+
while scale*np.ceil(scale/ratio) <= hd_num:
|
93 |
+
scale += 1
|
94 |
+
scale -= 1
|
95 |
+
new_w = int(scale * 336)
|
96 |
+
new_h = int(new_w / ratio)
|
97 |
+
|
98 |
+
img = torchvision.transforms.functional.resize(img, [new_h, new_w],)
|
99 |
+
img = padding_336(img)
|
100 |
+
width, height = img.size
|
101 |
+
if trans:
|
102 |
+
img = img.transpose(Image.TRANSPOSE)
|
103 |
+
|
104 |
+
return img
|
105 |
+
|
106 |
+
def calc_hd_transform_size(width, height, hd_num=16):
|
107 |
+
transposed = False
|
108 |
+
if width < height:
|
109 |
+
width, height = height, width
|
110 |
+
transposed = True
|
111 |
+
|
112 |
+
ratio = width / height
|
113 |
+
scale = 1
|
114 |
+
while scale * np.ceil(scale / ratio) <= hd_num:
|
115 |
+
scale += 1
|
116 |
+
scale -= 1
|
117 |
+
|
118 |
+
new_width = int(scale * 336)
|
119 |
+
new_height = int(new_width / ratio)
|
120 |
+
|
121 |
+
padded_width, padded_height = calc_padded_size(new_width, new_height)
|
122 |
+
|
123 |
+
if transposed:
|
124 |
+
padded_width, padded_height = padded_height, padded_width
|
125 |
+
|
126 |
+
return padded_width, padded_height
|
127 |
+
|
128 |
+
def pad_to_max_num_crops_tensor(images, max_crops=5):
|
129 |
+
"""
|
130 |
+
images: B x 3 x H x W, B<=max_crops
|
131 |
+
"""
|
132 |
+
B, _, H, W = images.shape
|
133 |
+
if B < max_crops:
|
134 |
+
pad = torch.zeros(max_crops - B, 3, H, W, dtype=images.dtype, device=images.device)
|
135 |
+
images = torch.cat([images, pad], dim=0)
|
136 |
+
return images
|
137 |
+
|
138 |
+
|
139 |
+
class Phi3VImageProcessor(BaseImageProcessor):
|
140 |
+
r"""
|
141 |
+
Constructs a Phi3 image processor. Based on [`CLIPImageProcessor`] with incorporation of additional techniques
|
142 |
+
for processing high resolution images as explained in the [InternLM-XComposer2-4KHD](https://arxiv.org/pdf/2404.06512)
|
143 |
+
|
144 |
+
Args:
|
145 |
+
image_mean (`float` or `List[float]`, *optional*, defaults to `[0.48145466, 0.4578275, 0.40821073]`):
|
146 |
+
Mean to use if normalizing the image. This is a float or list of floats the length of the number of
|
147 |
+
channels in the image. Can be overridden by the `image_mean` parameter in the `preprocess` method.
|
148 |
+
image_std (`float` or `List[float]`, *optional*, defaults to `[0.26862954, 0.26130258, 0.27577711]`):
|
149 |
+
Standard deviation to use if normalizing the image. This is a float or list of floats the length of the
|
150 |
+
number of channels in the image. Can be overridden by the `image_std` parameter in the `preprocess` method.
|
151 |
+
Can be overridden by the `image_std` parameter in the `preprocess` method.
|
152 |
+
do_convert_rgb (`bool`, *optional*, defaults to `True`):
|
153 |
+
Whether to convert the image to RGB.
|
154 |
+
"""
|
155 |
+
|
156 |
+
model_input_names = ["pixel_values"]
|
157 |
+
|
158 |
+
def __init__(
|
159 |
+
self,
|
160 |
+
num_crops: int = 1,
|
161 |
+
image_mean: Optional[Union[float, List[float]]] = None,
|
162 |
+
image_std: Optional[Union[float, List[float]]] = None,
|
163 |
+
do_convert_rgb: bool = True,
|
164 |
+
**kwargs,
|
165 |
+
) -> None:
|
166 |
+
super().__init__(**kwargs)
|
167 |
+
self.num_crops = num_crops
|
168 |
+
self.image_mean = image_mean if image_mean is not None else OPENAI_CLIP_MEAN
|
169 |
+
self.image_std = image_std if image_std is not None else OPENAI_CLIP_STD
|
170 |
+
self.do_convert_rgb = do_convert_rgb
|
171 |
+
|
172 |
+
def calc_num_image_tokens(
|
173 |
+
self,
|
174 |
+
images: ImageInput
|
175 |
+
):
|
176 |
+
""" Calculate the number of image tokens for each image.
|
177 |
+
Args:
|
178 |
+
images (`ImageInput`):
|
179 |
+
Image to preprocess. Expects a single or batch of images with pixel values ranging from 0 to 255. If
|
180 |
+
passing in images with pixel values between 0 and 1, set `do_rescale=False`.
|
181 |
+
"""
|
182 |
+
images = make_list_of_images(images)
|
183 |
+
|
184 |
+
if not valid_images(images):
|
185 |
+
raise ValueError(
|
186 |
+
"Invalid image type. Must be of type PIL.Image.Image, numpy.ndarray, "
|
187 |
+
"torch.Tensor, tf.Tensor or jax.ndarray."
|
188 |
+
)
|
189 |
+
|
190 |
+
images = [image.convert('RGB') for image in images]
|
191 |
+
# (H, W, C)
|
192 |
+
elems = [HD_transform(im, hd_num = self.num_crops) for im in images]
|
193 |
+
shapes = [[im.size[1], im.size[0]] for im in elems]
|
194 |
+
num_img_tokens = [int((h//336*w//336+1)*144 + 1 + (h//336+1)*12) for h, w in shapes]
|
195 |
+
return num_img_tokens
|
196 |
+
|
197 |
+
def calc_num_image_tokens_from_image_size(self, width, height):
|
198 |
+
"""
|
199 |
+
Calculate the number of image tokens for a given image size.
|
200 |
+
Args:
|
201 |
+
width (`int`): Width of the image.
|
202 |
+
height (`int`): Height of the image.
|
203 |
+
"""
|
204 |
+
new_width, new_height = calc_hd_transform_size(width, height, hd_num=self.num_crops)
|
205 |
+
num_img_tokens = int((new_height // 336 * new_width // 336 + 1) * 144 + 1 + (new_height // 336 + 1) * 12)
|
206 |
+
return num_img_tokens
|
207 |
+
|
208 |
+
def preprocess(
|
209 |
+
self,
|
210 |
+
images: ImageInput,
|
211 |
+
image_mean: Optional[Union[float, List[float]]] = None,
|
212 |
+
image_std: Optional[Union[float, List[float]]] = None,
|
213 |
+
do_convert_rgb: bool = None,
|
214 |
+
return_tensors: Optional[Union[str, TensorType]] = None,
|
215 |
+
):
|
216 |
+
"""
|
217 |
+
Args:
|
218 |
+
images (`ImageInput`):
|
219 |
+
Image to preprocess. Expects a single or batch of images with pixel values ranging from 0 to 255. If
|
220 |
+
passing in images with pixel values between 0 and 1, set `do_rescale=False`.
|
221 |
+
image_mean (`float` or `List[float]`, *optional*, defaults to `self.image_mean`):
|
222 |
+
Image mean to use for normalization. Only has an effect if `do_normalize` is set to `True`.
|
223 |
+
image_std (`float` or `List[float]`, *optional*, defaults to `self.image_std`):
|
224 |
+
Image standard deviation to use for normalization. Only has an effect if `do_normalize` is set to
|
225 |
+
`True`.
|
226 |
+
do_convert_rgb (`bool`, *optional*, defaults to `self.do_convert_rgb`):
|
227 |
+
Whether to convert the image to RGB.
|
228 |
+
return_tensors (`str` or `TensorType`, *optional*):
|
229 |
+
The type of tensors to return. Can be one of:
|
230 |
+
- Unset: Return a list of `np.ndarray`.
|
231 |
+
- `TensorType.TENSORFLOW` or `'tf'`: Return a batch of type `tf.Tensor`.
|
232 |
+
- `TensorType.PYTORCH` or `'pt'`: Return a batch of type `torch.Tensor`.
|
233 |
+
- `TensorType.NUMPY` or `'np'`: Return a batch of type `np.ndarray`.
|
234 |
+
- `TensorType.JAX` or `'jax'`: Return a batch of type `jax.numpy.ndarray`.
|
235 |
+
"""
|
236 |
+
image_mean = image_mean if image_mean is not None else self.image_mean
|
237 |
+
image_std = image_std if image_std is not None else self.image_std
|
238 |
+
do_convert_rgb = do_convert_rgb if do_convert_rgb is not None else self.do_convert_rgb
|
239 |
+
|
240 |
+
images = make_list_of_images(images)
|
241 |
+
|
242 |
+
if not valid_images(images):
|
243 |
+
raise ValueError(
|
244 |
+
"Invalid image type. Must be of type PIL.Image.Image, numpy.ndarray, "
|
245 |
+
"torch.Tensor, tf.Tensor or jax.ndarray."
|
246 |
+
)
|
247 |
+
|
248 |
+
if do_convert_rgb:
|
249 |
+
images = [convert_to_rgb(image) for image in images]
|
250 |
+
|
251 |
+
image_sizes = []
|
252 |
+
img_processor = torchvision.transforms.Compose([
|
253 |
+
torchvision.transforms.ToTensor(),
|
254 |
+
torchvision.transforms.Normalize(image_mean, image_std)
|
255 |
+
])
|
256 |
+
|
257 |
+
# PIL images
|
258 |
+
# HD_transform pad images to size of multiiply of 336, 336
|
259 |
+
# convert to RGB first
|
260 |
+
images = [image.convert('RGB') for image in images]
|
261 |
+
elems = [HD_transform(im, hd_num = self.num_crops) for im in images]
|
262 |
+
# tensor transform and normalize
|
263 |
+
hd_images = [img_processor(im) for im in elems]
|
264 |
+
# create global image
|
265 |
+
global_image = [torch.nn.functional.interpolate(im.unsqueeze(0).float(), size=(336, 336), mode='bicubic',).to(im.dtype) for im in hd_images]
|
266 |
+
|
267 |
+
# [(3, h, w)], where h, w is multiple of 336
|
268 |
+
shapes = [[im.size(1), im.size(2)] for im in hd_images]
|
269 |
+
num_img_tokens = [int(((h//336)*(w//336)+1)*144 + 1 + (h//336+1)*12) for h, w in shapes]
|
270 |
+
# reshape to channel dimension -> (num_images, num_crops, 3, 336, 336)
|
271 |
+
# (1, 3, h//336, 336, w//336, 336) -> (1, h//336, w//336, 3, 336, 336) -> (h//336*w//336, 3, 336, 336)
|
272 |
+
hd_images_reshape = [im.reshape(1, 3, h//336, 336, w//336, 336).permute(0,2,4,1,3,5).reshape(-1, 3, 336, 336).contiguous() for im, (h, w) in zip(hd_images, shapes)]
|
273 |
+
# concat global image and local image
|
274 |
+
hd_images_reshape = [torch.cat([_global_image] + [_im], dim=0) for _global_image, _im in zip(global_image, hd_images_reshape)]
|
275 |
+
|
276 |
+
# pad to max_num_crops
|
277 |
+
image_transformed = [pad_to_max_num_crops_tensor(im, self.num_crops+1) for im in hd_images_reshape]
|
278 |
+
image_transformed = torch.stack(image_transformed, dim=0)
|
279 |
+
image_sizes = [torch.LongTensor(_shapes) for _shapes in shapes]
|
280 |
+
padded_images = image_transformed
|
281 |
+
image_sizes = shapes
|
282 |
+
|
283 |
+
data = {"pixel_values": padded_images,
|
284 |
+
"image_sizes": image_sizes,
|
285 |
+
"num_img_tokens": num_img_tokens
|
286 |
+
}
|
287 |
+
|
288 |
+
return BatchFeature(data=data, tensor_type=return_tensors)
|
289 |
+
|
290 |
+
AutoImageProcessor.register("Phi3VImageProcessor", Phi3VImageProcessor)
|
291 |
+
|
292 |
+
transformers.Phi3VImageProcessor = Phi3VImageProcessor
|
293 |
+
|
294 |
+
class Phi3VProcessor(ProcessorMixin):
|
295 |
+
r"""
|
296 |
+
Constructs a Phi3-V processor which wraps a Phi3-V image processor and a LLaMa tokenizer into a single processor.
|
297 |
+
|
298 |
+
[`Phi3VProcessor`] offers all the functionalities of [`Phi3VImageProcessor`] and [`LlamaTokenizerFast`]. See the
|
299 |
+
[`~Phi3VProcessor.__call__`] and [`~Phi3VProcessor.decode`] for more information.
|
300 |
+
|
301 |
+
Args:
|
302 |
+
image_processor ([`Phi3VImageProcessor`], *optional*):
|
303 |
+
The image processor is a required input.
|
304 |
+
tokenizer ([`LlamaTokenizerFast`], *optional*):
|
305 |
+
The tokenizer is a required input.
|
306 |
+
"""
|
307 |
+
|
308 |
+
attributes = ["image_processor", "tokenizer"]
|
309 |
+
image_processor_class = "Phi3VImageProcessor"
|
310 |
+
tokenizer_class = ("LlamaTokenizer", "LlamaTokenizerFast")
|
311 |
+
special_image_token = "<|image|>"
|
312 |
+
|
313 |
+
def __init__(self, image_processor, tokenizer):
|
314 |
+
self.image_processor = image_processor
|
315 |
+
self.tokenizer = tokenizer
|
316 |
+
self.num_img_tokens = image_processor.num_img_tokens
|
317 |
+
self.img_tokens = [f"<|image_{i+1}|>" for i in range(1000000)]
|
318 |
+
|
319 |
+
def __call__(
|
320 |
+
self,
|
321 |
+
text: Union[TextInput, List[TextInput]],
|
322 |
+
images: ImageInput = None,
|
323 |
+
padding: Union[bool, str, PaddingStrategy] = False,
|
324 |
+
truncation: Union[bool, str, TruncationStrategy] = None,
|
325 |
+
max_length=None,
|
326 |
+
return_tensors: Optional[Union[str, TensorType]] = TensorType.PYTORCH,
|
327 |
+
) -> BatchFeature:
|
328 |
+
"""
|
329 |
+
Main method to prepare for the model one or several sequences(s) and image(s). This method forwards the `text`
|
330 |
+
and `kwargs` arguments to LlamaTokenizerFast's [`~LlamaTokenizerFast.__call__`] if `text` is not `None` to encode
|
331 |
+
the text. To prepare the image(s), this method forwards the `images` and `kwrags` arguments to
|
332 |
+
Phi3ImageProcessor's [`~Phi3ImageProcessor.__call__`] if `images` is not `None`. Please refer to the doctsring
|
333 |
+
of the above two methods for more information.
|
334 |
+
|
335 |
+
Args:
|
336 |
+
text (`str`, `List[str]`, `List[List[str]]`):
|
337 |
+
The sequence or batch of sequences to be encoded. Each sequence can be a string or a list of strings
|
338 |
+
(pretokenized string). If the sequences are provided as list of strings (pretokenized), you must set
|
339 |
+
`is_split_into_words=True` (to lift the ambiguity with a batch of sequences).
|
340 |
+
images (`PIL.Image.Image`, `np.ndarray`, `torch.Tensor`, `List[PIL.Image.Image]`, `List[np.ndarray]`, `List[torch.Tensor]`):
|
341 |
+
The image or batch of images to be prepared. Each image can be a PIL image, NumPy array or PyTorch
|
342 |
+
tensor. Both channels-first and channels-last formats are supported.
|
343 |
+
padding (`bool`, `str` or [`~utils.PaddingStrategy`], *optional*, defaults to `False`):
|
344 |
+
Select a strategy to pad the returned sequences (according to the model's padding side and padding
|
345 |
+
index) among:
|
346 |
+
- `True` or `'longest'`: Pad to the longest sequence in the batch (or no padding if only a single
|
347 |
+
sequence if provided).
|
348 |
+
- `'max_length'`: Pad to a maximum length specified with the argument `max_length` or to the maximum
|
349 |
+
acceptable input length for the model if that argument is not provided.
|
350 |
+
- `False` or `'do_not_pad'` (default): No padding (i.e., can output a batch with sequences of different
|
351 |
+
lengths).
|
352 |
+
max_length (`int`, *optional*):
|
353 |
+
Maximum length of the returned list and optionally padding length (see above).
|
354 |
+
truncation (`bool`, *optional*):
|
355 |
+
Activates truncation to cut input sequences longer than `max_length` to `max_length`.
|
356 |
+
return_tensors (`str` or [`~utils.TensorType`], *optional*):
|
357 |
+
If set, will return tensors of a particular framework. Acceptable values are:
|
358 |
+
|
359 |
+
- `'tf'`: Return TensorFlow `tf.constant` objects.
|
360 |
+
- `'pt'`: Return PyTorch `torch.Tensor` objects.
|
361 |
+
- `'np'`: Return NumPy `np.ndarray` objects.
|
362 |
+
- `'jax'`: Return JAX `jnp.ndarray` objects.
|
363 |
+
|
364 |
+
Returns:
|
365 |
+
[`BatchFeature`]: A [`BatchFeature`] with the following fields:
|
366 |
+
|
367 |
+
- **input_ids** -- List of token ids to be fed to a model. Returned when `text` is not `None`.
|
368 |
+
- **attention_mask** -- List of indices specifying which tokens should be attended to by the model (when
|
369 |
+
`return_attention_mask=True` or if *"attention_mask"* is in `self.model_input_names` and if `text` is not
|
370 |
+
`None`).
|
371 |
+
- **pixel_values** -- Pixel values to be fed to a model. Returned when `images` is not `None`.
|
372 |
+
"""
|
373 |
+
if images is not None:
|
374 |
+
image_inputs = self.image_processor(images, return_tensors=return_tensors)
|
375 |
+
else:
|
376 |
+
image_inputs = {}
|
377 |
+
inputs = self._convert_images_texts_to_inputs(image_inputs, text, padding=padding, truncation=truncation, max_length=max_length, return_tensors=return_tensors)
|
378 |
+
return inputs
|
379 |
+
|
380 |
+
def calc_num_image_tokens(self, images: ImageInput):
|
381 |
+
""" Calculate the number of image tokens for each image.
|
382 |
+
Args:
|
383 |
+
images (`ImageInput`):
|
384 |
+
Image to preprocess. Expects a single or batch of images with pixel values ranging from 0 to 255. If
|
385 |
+
passing in images with pixel values between 0 and 1, set `do_rescale=False`.
|
386 |
+
"""
|
387 |
+
return self.image_processor.calc_num_image_tokens(images)
|
388 |
+
|
389 |
+
def calc_num_image_tokens_from_image_size(self, width, height):
|
390 |
+
""" Calculate the number of image token for an image with given width and height.
|
391 |
+
Args:
|
392 |
+
width (`int`):
|
393 |
+
Width of the image.
|
394 |
+
height (`int`):
|
395 |
+
Height of the image.
|
396 |
+
"""
|
397 |
+
return self.image_processor.calc_num_image_tokens_from_image_size(width, height)
|
398 |
+
|
399 |
+
|
400 |
+
@property
|
401 |
+
def special_image_token_id(self):
|
402 |
+
return self.tokenizer.convert_tokens_to_ids(self.special_image_token)
|
403 |
+
|
404 |
+
def get_special_image_token_id(self):
|
405 |
+
return self.tokenizer.convert_tokens_to_ids(self.special_image_token)
|
406 |
+
|
407 |
+
def _convert_images_texts_to_inputs(self, images, texts, padding=False, truncation=None, max_length=None, return_tensors=None):
|
408 |
+
|
409 |
+
if not len(images):
|
410 |
+
model_inputs = self.tokenizer(texts, return_tensors=return_tensors, padding=padding, truncation=truncation, max_length=max_length)
|
411 |
+
return BatchFeature(data={**model_inputs})
|
412 |
+
|
413 |
+
pattern = r"<\|image_\d+\|>"
|
414 |
+
prompt_chunks = [self.tokenizer(chunk).input_ids for chunk in re.split(pattern, texts)]
|
415 |
+
|
416 |
+
if 'num_img_tokens' in images:
|
417 |
+
num_img_tokens = images['num_img_tokens']
|
418 |
+
else:
|
419 |
+
assert 'num_crops' in images, 'num_crops must be provided in images if num_img_tokens is not provided'
|
420 |
+
num_crops = images['num_crops']
|
421 |
+
num_img_tokens = [_num_crops * self.num_img_tokens for _num_crops in num_crops]
|
422 |
+
|
423 |
+
images, image_sizes = images['pixel_values'], images['image_sizes']
|
424 |
+
|
425 |
+
# image_tags needs to start from 1 to n
|
426 |
+
image_tags = re.findall(pattern, texts)
|
427 |
+
# image_ids = [int(s.split("|")[1].split("_")[-1]) * -1 for s in image_tags]
|
428 |
+
# image_ids_pad = [[iid]*num_img_tokens[i] for i, iid in enumerate(image_ids)]
|
429 |
+
image_ids = [int(s.split("|")[1].split("_")[-1]) for s in image_tags]
|
430 |
+
unique_image_ids = sorted(list(set(image_ids)))
|
431 |
+
# image_ids must start from 1, and must be continuous int, e.g. [1, 2, 3], cannot be [1, 4, 5]
|
432 |
+
# check the condition
|
433 |
+
assert unique_image_ids == list(range(1, len(unique_image_ids)+1)), f"image_ids must start from 1, and must be continuous int, e.g. [1, 2, 3], cannot be {unique_image_ids}"
|
434 |
+
# total images must be the same as the number of image tags
|
435 |
+
assert len(unique_image_ids) == len(images), f"total images must be the same as the number of image tags, got {len(unique_image_ids)} image tags and {len(images)} images"
|
436 |
+
|
437 |
+
image_ids_pad = [[-iid]*num_img_tokens[iid-1] for iid in image_ids]
|
438 |
+
|
439 |
+
def insert_separator(X, sep_list):
|
440 |
+
if len(X) > len(sep_list):
|
441 |
+
sep_list.append([])
|
442 |
+
return [ele for sublist in zip(X, sep_list) for ele in sublist]
|
443 |
+
input_ids = []
|
444 |
+
offset = 0
|
445 |
+
for x in insert_separator(prompt_chunks, image_ids_pad):
|
446 |
+
input_ids.extend(x[offset:])
|
447 |
+
|
448 |
+
input_ids = torch.tensor(input_ids, dtype=torch.long).unsqueeze(0)
|
449 |
+
attention_mask = (input_ids > -1000000).to(torch.long)
|
450 |
+
|
451 |
+
return BatchFeature(data={"input_ids": input_ids,
|
452 |
+
"attention_mask": attention_mask,
|
453 |
+
"pixel_values": images,
|
454 |
+
"image_sizes": image_sizes})
|
455 |
+
|
456 |
+
|
457 |
+
# Copied from transformers.models.clip.processing_clip.CLIPProcessor.batch_decode with CLIP->Llama
|
458 |
+
def batch_decode(self, *args, **kwargs):
|
459 |
+
"""
|
460 |
+
This method forwards all its arguments to LlamaTokenizerFast's [`~PreTrainedTokenizer.batch_decode`]. Please
|
461 |
+
refer to the docstring of this method for more information.
|
462 |
+
"""
|
463 |
+
return self.tokenizer.batch_decode(*args, **kwargs)
|
464 |
+
|
465 |
+
# Copied from transformers.models.clip.processing_clip.CLIPProcessor.decode with CLIP->Llama
|
466 |
+
def decode(self, *args, **kwargs):
|
467 |
+
"""
|
468 |
+
This method forwards all its arguments to LlamaTokenizerFast's [`~PreTrainedTokenizer.decode`]. Please refer to
|
469 |
+
the docstring of this method for more information.
|
470 |
+
"""
|
471 |
+
return self.tokenizer.decode(*args, **kwargs)
|
472 |
+
|
473 |
+
@property
|
474 |
+
# Copied from transformers.models.clip.processing_clip.CLIPProcessor.model_input_names
|
475 |
+
def model_input_names(self):
|
476 |
+
tokenizer_input_names = self.tokenizer.model_input_names
|
477 |
+
image_processor_input_names = self.image_processor.model_input_names
|
478 |
+
return list(dict.fromkeys(tokenizer_input_names + image_processor_input_names))
|
processor_config.json
ADDED
@@ -0,0 +1,6 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
{
|
2 |
+
"auto_map": {
|
3 |
+
"AutoProcessor": "processing_phi3_v.Phi3VProcessor"
|
4 |
+
},
|
5 |
+
"processor_class": "Phi3VProcessor"
|
6 |
+
}
|
special_tokens_map.json
ADDED
@@ -0,0 +1,36 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
{
|
2 |
+
"additional_special_tokens": [
|
3 |
+
"<|system|>",
|
4 |
+
"<|end|>",
|
5 |
+
"<|user|>",
|
6 |
+
"<|end|>"
|
7 |
+
],
|
8 |
+
"bos_token": {
|
9 |
+
"content": "<s>",
|
10 |
+
"lstrip": false,
|
11 |
+
"normalized": false,
|
12 |
+
"rstrip": false,
|
13 |
+
"single_word": false
|
14 |
+
},
|
15 |
+
"eos_token": {
|
16 |
+
"content": "<|endoftext|>",
|
17 |
+
"lstrip": false,
|
18 |
+
"normalized": false,
|
19 |
+
"rstrip": false,
|
20 |
+
"single_word": false
|
21 |
+
},
|
22 |
+
"pad_token": {
|
23 |
+
"content": "<|endoftext|>",
|
24 |
+
"lstrip": false,
|
25 |
+
"normalized": false,
|
26 |
+
"rstrip": false,
|
27 |
+
"single_word": false
|
28 |
+
},
|
29 |
+
"unk_token": {
|
30 |
+
"content": "<unk>",
|
31 |
+
"lstrip": false,
|
32 |
+
"normalized": false,
|
33 |
+
"rstrip": false,
|
34 |
+
"single_word": false
|
35 |
+
}
|
36 |
+
}
|
tokenizer.json
ADDED
The diff for this file is too large to render.
See raw diff
|
|
tokenizer_config.json
ADDED
@@ -0,0 +1,414 @@
|
|
|
|
|
|
|
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|
|
|
|
|
|
|
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|
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|
414 |
+
}
|