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README.md ADDED
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1
+ # MiniCPM
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+
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+ ## 介绍 Introduction
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+
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+
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+ - 与`Llama`的关系 The Relationship between `Llama`
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+
8
+ `MiniCPM`与`Llama`均使用了仅解码器架构。代码实现上,`MiniCPM`基于`Llama`实现,增加了放缩机制。
9
+
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+ `MiniCPM` uses Decoder-only Structure as well as `Llama`. The implementation of `MiniCPM` is based on `Llama` code, with scaling mechenism added.
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+
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+ ## 软件依赖 Dependency
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+
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+ - `transformers >= 4.36.0`
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+ - `accelerate`
16
+
17
+ ## 使用 Usage
18
+
19
+ 我们推荐使用`AutoModelForCausalLM`与`AutoTokenizer`载入`MiniCPM`,并使用`torch.bfloat16`作为计算精度。我们推荐在GPU上进行推理。
20
+
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+ We recommend using `AutoModelForCausalLM` and `AutoTokenizer` to load `MiniCPM`, and use `torch.bfloat16` as the calculation precision. GPU reference is recommended.
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+
23
+ 以下是一个使用`MiniCPM`生成的例子。
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+
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+ An example is provided below for using `MiniCPM` to generate tokens.
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+
27
+ ```python
28
+ from transformers import AutoModelForCausalLM, AutoTokenizer
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+ import torch
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+
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+ path = '/data/miniCPM_opensource/miniCPM-bf16' # TODO
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+
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+ tokenizer = AutoTokenizer.from_pretrained(path)
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+ model = AutoModelForCausalLM.from_pretrained(path, torch_dtype=torch.float32, device_map='auto', trust_remote_code=True)
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+
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+ dialog = [{'role': 'user', 'content': '请问中国哪几个城市最适合旅游?'}]
37
+
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+ input = tokenizer.apply_chat_template(dialog, tokenize=False, add_generation_prompt=False)
39
+ enc = tokenizer(input, return_tensors='pt').to('cuda')
40
+
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+ output = model.generate(**enc, max_length=1024)
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+ print(tokenizer.decode(output[0]))
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+ ```
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+
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+ 期望的输出 Expected Output:
46
+ ```
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+ <s> <用户>请问中国哪几个城市最适合旅游?<AI> 中国有很多适合旅游的城市,以下是一些建议:
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+
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+ 1. 北京:中国的首都,有着悠久的历史和丰富的文化,如故宫、天安门广场、颐和园等。
50
+ 2. 上海:中国的经济中心,有着现代化的城市风貌和世界级的景点,如外滩、东方明珠、豫园等。
51
+ 3. 西安:古都西安有着丰富的历史遗迹,如兵马俑、大雁塔、华清池等。
52
+ 4. 成都:美食之都,有着悠闲的生活氛围,如锦里、宽窄巷子、大熊猫繁育研究基地等。
53
+ 5. 杭州:美丽的西湖是杭州的标志性景点,还有许多历史遗迹和文化景点,如灵隐寺、宋城等。
54
+ 6. 广州:南方繁华的大都市,有着丰富的美食和购物资源,如珠江夜游、白云山、长隆旅游度假区等。
55
+ 7. 厦门:美丽的海滨城市,有着清新的空气和美丽的海景,如鼓浪屿、南普陀寺、厦门大学等。
56
+ 8. 桂林:著名的旅游城市,有着壮丽的山水风光,如漓江、阳朔、世外桃源等。
57
+ 9. 张家界:有着独特的石柱地貌,如黄龙洞、天子山、金鞭溪等。
58
+ 10. 西藏:神秘的高原地区,有着壮丽的自然风光和丰富的文化,如布达拉宫、大昭寺、纳木错等。
59
+
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+ 以上仅是中国部分城市的推荐,实际上中国还有许多其他美丽的地方值得一游。在选择旅游目的地时,可以根据自己的兴趣和喜好进行选择。</s>
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+ ```
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+
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+ ## 引用 Reference
config.json ADDED
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1
+ {
2
+ "_name_or_path": "openbmb/CPM-2B",
3
+ "architectures": [
4
+ "MiniCPMForCausalLM"
5
+ ],
6
+ "auto_map": {
7
+ "AutoConfig": "configuration_minicpm.MiniCPMConfig",
8
+ "AutoModel": "modeling_minicpm.MiniCPMModel",
9
+ "AutoModelForCausalLM": "modeling_minicpm.MiniCPMForCausalLM",
10
+ "AutoModelForSeq2SeqLM": "modeling_minicpm.MiniCPMForCausalLM",
11
+ "AutoModelForSequenceClassification": "modeling_minicpm.MiniCPMForSequenceClassification"
12
+ },
13
+ "bos_token_id": 1,
14
+ "eos_token_id": 2,
15
+ "hidden_act": "silu",
16
+ "hidden_size": 2304,
17
+ "initializer_range": 0.1,
18
+ "intermediate_size": 5760,
19
+ "max_position_embeddings": 2048,
20
+ "num_attention_heads": 36,
21
+ "num_hidden_layers": 40,
22
+ "num_key_value_heads": 36,
23
+ "rms_norm_eps": 1e-05,
24
+ "rope_scaling": null,
25
+ "torch_dtype": "float32",
26
+ "transformers_version": "4.36.0",
27
+ "use_cache": true,
28
+ "vocab_size": 122753,
29
+ "scale_emb": 12,
30
+ "dim_model_base": 256,
31
+ "scale_depth": 1.4
32
+ }
configuration_minicpm.py ADDED
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1
+ # coding=utf-8
2
+ # Copyright 2022 EleutherAI and the HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # This code is based on EleutherAI's GPT-NeoX library and the GPT-NeoX
5
+ # and OPT implementations in this library. It has been modified from its
6
+ # original forms to accommodate minor architectural differences compared
7
+ # to GPT-NeoX and OPT used by the Meta AI team that trained the model.
8
+ #
9
+ # Licensed under the Apache License, Version 2.0 (the "License");
10
+ # you may not use this file except in compliance with the License.
11
+ # You may obtain a copy of the License at
12
+ #
13
+ # http://www.apache.org/licenses/LICENSE-2.0
14
+ #
15
+ # Unless required by applicable law or agreed to in writing, software
16
+ # distributed under the License is distributed on an "AS IS" BASIS,
17
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18
+ # See the License for the specific language governing permissions and
19
+ # limitations under the License.
20
+ """ MiniCPM model configuration"""
21
+
22
+ from transformers.configuration_utils import PretrainedConfig
23
+ from transformers.utils import logging
24
+
25
+
26
+ logger = logging.get_logger(__name__)
27
+
28
+ MINICPM_PRETRAINED_CONFIG_ARCHIVE_MAP = {}
29
+
30
+
31
+ class MiniCPMConfig(PretrainedConfig):
32
+ r"""
33
+ This is the configuration class to store the configuration of a [`MiniCPMModel`]. It is used to instantiate an MiniCPM
34
+ model according to the specified arguments, defining the model architecture. Instantiating a configuration with the
35
+ defaults will yield a similar configuration to that of the MiniCPM-7B.
36
+
37
+ Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
38
+ documentation from [`PretrainedConfig`] for more information.
39
+
40
+
41
+ Args:
42
+ vocab_size (`int`, *optional*, defaults to 32000):
43
+ Vocabulary size of the MiniCPM model. Defines the number of different tokens that can be represented by the
44
+ `inputs_ids` passed when calling [`MiniCPMModel`]
45
+ hidden_size (`int`, *optional*, defaults to 4096):
46
+ Dimension of the hidden representations.
47
+ intermediate_size (`int`, *optional*, defaults to 11008):
48
+ Dimension of the MLP representations.
49
+ num_hidden_layers (`int`, *optional*, defaults to 32):
50
+ Number of hidden layers in the Transformer decoder.
51
+ num_attention_heads (`int`, *optional*, defaults to 32):
52
+ Number of attention heads for each attention layer in the Transformer decoder.
53
+ num_key_value_heads (`int`, *optional*):
54
+ This is the number of key_value heads that should be used to implement Grouped Query Attention. If
55
+ `num_key_value_heads=num_attention_heads`, the model will use Multi Head Attention (MHA), if
56
+ `num_key_value_heads=1 the model will use Multi Query Attention (MQA) otherwise GQA is used. When
57
+ converting a multi-head checkpoint to a GQA checkpoint, each group key and value head should be constructed
58
+ by meanpooling all the original heads within that group. For more details checkout [this
59
+ paper](https://arxiv.org/pdf/2305.13245.pdf). If it is not specified, will default to
60
+ `num_attention_heads`.
61
+ hidden_act (`str` or `function`, *optional*, defaults to `"silu"`):
62
+ The non-linear activation function (function or string) in the decoder.
63
+ max_position_embeddings (`int`, *optional*, defaults to 2048):
64
+ The maximum sequence length that this model might ever be used with. MiniCPM 1 supports up to 2048 tokens,
65
+ MiniCPM 2 up to 4096, CodeMiniCPM up to 16384.
66
+ initializer_range (`float`, *optional*, defaults to 0.02):
67
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
68
+ rms_norm_eps (`float`, *optional*, defaults to 1e-06):
69
+ The epsilon used by the rms normalization layers.
70
+ use_cache (`bool`, *optional*, defaults to `True`):
71
+ Whether or not the model should return the last key/values attentions (not used by all models). Only
72
+ relevant if `config.is_decoder=True`.
73
+ pad_token_id (`int`, *optional*):
74
+ Padding token id.
75
+ bos_token_id (`int`, *optional*, defaults to 1):
76
+ Beginning of stream token id.
77
+ eos_token_id (`int`, *optional*, defaults to 2):
78
+ End of stream token id.
79
+ pretraining_tp (`int`, *optional*, defaults to 1):
80
+ Experimental feature. Tensor parallelism rank used during pretraining. Please refer to [this
81
+ document](https://huggingface.co/docs/transformers/parallelism) to understand more about it. This value is
82
+ necessary to ensure exact reproducibility of the pretraining results. Please refer to [this
83
+ issue](https://github.com/pytorch/pytorch/issues/76232).
84
+ tie_word_embeddings (`bool`, *optional*, defaults to `False`):
85
+ Whether to tie weight embeddings
86
+ rope_theta (`float`, *optional*, defaults to 10000.0):
87
+ The base period of the RoPE embeddings.
88
+ rope_scaling (`Dict`, *optional*):
89
+ Dictionary containing the scaling configuration for the RoPE embeddings. Currently supports two scaling
90
+ strategies: linear and dynamic. Their scaling factor must be a float greater than 1. The expected format is
91
+ `{"type": strategy name, "factor": scaling factor}`. When using this flag, don't update
92
+ `max_position_embeddings` to the expected new maximum. See the following thread for more information on how
93
+ these scaling strategies behave:
94
+ https://www.reddit.com/r/LocalMiniCPM/comments/14mrgpr/dynamically_scaled_rope_further_increases/. This is an
95
+ experimental feature, subject to breaking API changes in future versions.
96
+ attention_bias (`bool`, defaults to `False`, *optional*, defaults to `False`):
97
+ Whether to use a bias in the query, key, value and output projection layers during self-attention.
98
+ attention_dropout (`float`, *optional*, defaults to 0.0):
99
+ The dropout ratio for the attention probabilities.
100
+
101
+ ```python
102
+ >>> from transformers import MiniCPMModel, MiniCPMConfig
103
+
104
+ >>> # Initializing a MiniCPM minicpm-7b style configuration
105
+ >>> configuration = MiniCPMConfig()
106
+
107
+ >>> # Initializing a model from the minicpm-7b style configuration
108
+ >>> model = MiniCPMModel(configuration)
109
+
110
+ >>> # Accessing the model configuration
111
+ >>> configuration = model.config
112
+ ```"""
113
+
114
+ model_type = "minicpm"
115
+ keys_to_ignore_at_inference = ["past_key_values"]
116
+
117
+ def __init__(
118
+ self,
119
+ vocab_size=32000,
120
+ hidden_size=4096,
121
+ intermediate_size=11008,
122
+ num_hidden_layers=32,
123
+ num_attention_heads=32,
124
+ num_key_value_heads=None,
125
+ hidden_act="silu",
126
+ max_position_embeddings=2048,
127
+ initializer_range=0.02,
128
+ rms_norm_eps=1e-6,
129
+ use_cache=True,
130
+ pad_token_id=None,
131
+ bos_token_id=1,
132
+ eos_token_id=2,
133
+ pretraining_tp=1,
134
+ tie_word_embeddings=True,
135
+ rope_theta=10000.0,
136
+ rope_scaling=None,
137
+ attention_bias=False,
138
+ attention_dropout=0.0,
139
+ scale_emb=1,
140
+ dim_model_base=1,
141
+ scale_depth=1,
142
+ **kwargs,
143
+ ):
144
+ self.vocab_size = vocab_size
145
+ self.max_position_embeddings = max_position_embeddings
146
+ self.hidden_size = hidden_size
147
+ self.intermediate_size = intermediate_size
148
+ self.num_hidden_layers = num_hidden_layers
149
+ self.num_attention_heads = num_attention_heads
150
+
151
+ # for backward compatibility
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.hidden_act = hidden_act
157
+ self.initializer_range = initializer_range
158
+ self.rms_norm_eps = rms_norm_eps
159
+ self.pretraining_tp = pretraining_tp
160
+ self.use_cache = use_cache
161
+ self.rope_theta = rope_theta
162
+ self.rope_scaling = rope_scaling
163
+ self._rope_scaling_validation()
164
+ self.attention_bias = attention_bias
165
+ self.attention_dropout = attention_dropout
166
+ self.scale_emb = scale_emb
167
+ self.dim_model_base = dim_model_base
168
+ self.scale_depth = scale_depth
169
+
170
+ super().__init__(
171
+ pad_token_id=pad_token_id,
172
+ bos_token_id=bos_token_id,
173
+ eos_token_id=eos_token_id,
174
+ tie_word_embeddings=tie_word_embeddings,
175
+ **kwargs,
176
+ )
177
+
178
+ def _rope_scaling_validation(self):
179
+ """
180
+ Validate the `rope_scaling` configuration.
181
+ """
182
+ if self.rope_scaling is None:
183
+ return
184
+
185
+ if not isinstance(self.rope_scaling, dict) or len(self.rope_scaling) != 2:
186
+ raise ValueError(
187
+ "`rope_scaling` must be a dictionary with with two fields, `type` and `factor`, "
188
+ f"got {self.rope_scaling}"
189
+ )
190
+ rope_scaling_type = self.rope_scaling.get("type", None)
191
+ rope_scaling_factor = self.rope_scaling.get("factor", None)
192
+ if rope_scaling_type is None or rope_scaling_type not in ["linear", "dynamic"]:
193
+ raise ValueError(
194
+ f"`rope_scaling`'s type field must be one of ['linear', 'dynamic'], got {rope_scaling_type}"
195
+ )
196
+ if rope_scaling_factor is None or not isinstance(rope_scaling_factor, float) or rope_scaling_factor <= 1.0:
197
+ raise ValueError(f"`rope_scaling`'s factor field must be a float > 1, got {rope_scaling_factor}")
generation_config.json ADDED
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1
+ {
2
+ "do_sample": true,
3
+ "top_p": 0.8,
4
+ "temperature": 0.3,
5
+ "bos_token_id": 1,
6
+ "eos_token_id": 2
7
+ }
modeling_minicpm.py ADDED
@@ -0,0 +1,1453 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 EleutherAI and the HuggingFace Inc. team. All rights reserved.
3
+ #
4
+ # This code is based on EleutherAI's GPT-NeoX library and the GPT-NeoX
5
+ # and OPT implementations in this library. It has been modified from its
6
+ # original forms to accommodate minor architectural differences compared
7
+ # to GPT-NeoX and OPT used by the Meta AI team that trained the model.
8
+ #
9
+ # Licensed under the Apache License, Version 2.0 (the "License");
10
+ # you may not use this file except in compliance with the License.
11
+ # You may obtain a copy of the License at
12
+ #
13
+ # http://www.apache.org/licenses/LICENSE-2.0
14
+ #
15
+ # Unless required by applicable law or agreed to in writing, software
16
+ # distributed under the License is distributed on an "AS IS" BASIS,
17
+ # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18
+ # See the License for the specific language governing permissions and
19
+ # limitations under the License.
20
+ """ PyTorch MiniCPM model."""
21
+ import math
22
+ import warnings
23
+ from typing import List, Optional, Tuple, Union, Dict
24
+
25
+ import torch
26
+ import torch.nn.functional as F
27
+ import torch.utils.checkpoint
28
+ from torch import nn
29
+ from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss
30
+
31
+ from transformers.activations import ACT2FN
32
+ from transformers.cache_utils import Cache, DynamicCache
33
+ from transformers.modeling_attn_mask_utils import (
34
+ AttentionMaskConverter,
35
+ _prepare_4d_attention_mask,
36
+ _prepare_4d_causal_attention_mask,
37
+ _prepare_4d_causal_attention_mask_for_sdpa,
38
+ )
39
+ from transformers.modeling_outputs import BaseModelOutputWithPast, CausalLMOutputWithPast, SequenceClassifierOutputWithPast
40
+ from transformers.modeling_utils import PreTrainedModel
41
+ from transformers.pytorch_utils import ALL_LAYERNORM_LAYERS, is_torch_greater_or_equal_than_1_13
42
+ from transformers.utils import (
43
+ add_start_docstrings,
44
+ add_start_docstrings_to_model_forward,
45
+ is_flash_attn_2_available,
46
+ is_flash_attn_greater_or_equal_2_10,
47
+ logging,
48
+ replace_return_docstrings,
49
+ )
50
+ from transformers.utils.import_utils import is_torch_fx_available
51
+ from .configuration_minicpm import MiniCPMConfig
52
+ import re
53
+
54
+
55
+ if is_flash_attn_2_available():
56
+ from flash_attn import flash_attn_func, flash_attn_varlen_func
57
+ from flash_attn.bert_padding import index_first_axis, pad_input, unpad_input # noqa
58
+
59
+
60
+ # This makes `_prepare_4d_causal_attention_mask` a leaf function in the FX graph.
61
+ # It means that the function will not be traced through and simply appear as a node in the graph.
62
+ if is_torch_fx_available():
63
+ if not is_torch_greater_or_equal_than_1_13:
64
+ import torch.fx
65
+
66
+ _prepare_4d_causal_attention_mask = torch.fx.wrap(_prepare_4d_causal_attention_mask)
67
+
68
+
69
+ logger = logging.get_logger(__name__)
70
+
71
+ _CONFIG_FOR_DOC = "MiniCPMConfig"
72
+
73
+
74
+ def _get_unpad_data(attention_mask):
75
+ seqlens_in_batch = attention_mask.sum(dim=-1, dtype=torch.int32)
76
+ indices = torch.nonzero(attention_mask.flatten(), as_tuple=False).flatten()
77
+ max_seqlen_in_batch = seqlens_in_batch.max().item()
78
+ cu_seqlens = F.pad(torch.cumsum(seqlens_in_batch, dim=0, dtype=torch.torch.int32), (1, 0))
79
+ return (
80
+ indices,
81
+ cu_seqlens,
82
+ max_seqlen_in_batch,
83
+ )
84
+
85
+
86
+ def _expand_mask(mask: torch.Tensor, dtype: torch.dtype, tgt_len: Optional[int] = None):
87
+ warnings.warn(
88
+ "Calling `transformers.models.minicpm.modeling_minicpm._prepare_4d_attention_mask` is deprecated and will be removed in v4.37. Use `transformers.modeling_attn_mask_utils._prepare_4d_attention_mask"
89
+ )
90
+ return _prepare_4d_attention_mask(mask=mask, dtype=dtype, tgt_len=tgt_len)
91
+
92
+
93
+ def _make_causal_mask(
94
+ input_ids_shape: torch.Size, dtype: torch.dtype, device: torch.device, past_key_values_length: int = 0
95
+ ):
96
+ warnings.warn(
97
+ "Calling `transformers.models.minicpm.modeling_minicpm._make_causal_mask` is deprecated and will be removed in v4.37. Use `transformers.models.minicpm.modeling_minicpm.AttentionMaskConverter._make_causal_mask"
98
+ )
99
+ return AttentionMaskConverter._make_causal_mask(
100
+ input_ids_shape=input_ids_shape, dtype=dtype, device=device, past_key_values_length=past_key_values_length
101
+ )
102
+
103
+ # @torch.jit.script # type: ignore
104
+ def rms_layernorm(hidden: torch.Tensor, weight: torch.Tensor, eps: float):
105
+ old_dtype = hidden.dtype
106
+ variance = hidden.to(torch.float32).pow(2).mean(dim=-1, keepdim=True)
107
+ hidden = (hidden * torch.rsqrt(variance + eps)).to(old_dtype)
108
+ return hidden * weight
109
+
110
+
111
+ class MiniCPMRMSNorm(nn.Module):
112
+ def __init__(self, hidden_size, eps=1e-6):
113
+ """
114
+ MiniCPMRMSNorm is equivalent to T5LayerNorm
115
+ """
116
+ super().__init__()
117
+ self.weight = nn.Parameter(torch.ones(hidden_size))
118
+ self.variance_epsilon = eps
119
+
120
+ def forward(self, hidden_states):
121
+ return rms_layernorm(hidden_states, self.weight, self.variance_epsilon)
122
+
123
+
124
+ ALL_LAYERNORM_LAYERS.append(MiniCPMRMSNorm)
125
+
126
+
127
+ class MiniCPMRotaryEmbedding(nn.Module):
128
+ def __init__(self, dim, max_position_embeddings=2048, base=10000, device="cuda"):
129
+ super().__init__()
130
+
131
+ self.dim = dim
132
+ self.max_position_embeddings = max_position_embeddings
133
+ self.base = base
134
+ inv_freq = 1.0 / (self.base ** (torch.arange(0, self.dim, 2).float().to(device) / self.dim))
135
+ self.register_buffer("inv_freq", inv_freq, persistent=False)
136
+
137
+ # Build here to make `torch.jit.trace` work.
138
+ self._set_cos_sin_cache(
139
+ # seq_len=max_position_embeddings, device=self.inv_freq.device, dtype=torch.get_default_dtype()
140
+ seq_len=max_position_embeddings, device=self.inv_freq.device, dtype=torch.float32
141
+ )
142
+
143
+ def _set_cos_sin_cache(self, seq_len, device, dtype):
144
+ self.max_seq_len_cached = seq_len
145
+ t = torch.arange(self.max_seq_len_cached, device=device, dtype=self.inv_freq.dtype)
146
+ freqs = torch.outer(t, self.inv_freq)
147
+ # Different from paper, but it uses a different permutation in order to obtain the same calculation
148
+ emb = torch.cat((freqs, freqs), dim=-1)
149
+
150
+ self.register_buffer("cos_cached", emb.cos().to(dtype), persistent=False)
151
+ self.register_buffer("sin_cached", emb.sin().to(dtype), persistent=False)
152
+
153
+ def forward(self, x, seq_len=None):
154
+ # x: [bs, num_attention_heads, seq_len, head_size]
155
+ if seq_len > self.max_seq_len_cached:
156
+ self._set_cos_sin_cache(seq_len=seq_len, device=x.device, dtype=x.dtype)
157
+
158
+ return (
159
+ self.cos_cached[:seq_len].to(dtype=x.dtype),
160
+ self.sin_cached[:seq_len].to(dtype=x.dtype),
161
+ )
162
+
163
+
164
+ class MiniCPMLinearScalingRotaryEmbedding(MiniCPMRotaryEmbedding):
165
+ """MiniCPMRotaryEmbedding extended with linear scaling. Credits to the Reddit user /u/kaiokendev"""
166
+
167
+ def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None, scaling_factor=1.0):
168
+ self.scaling_factor = scaling_factor
169
+ super().__init__(dim, max_position_embeddings, base, device)
170
+
171
+ def _set_cos_sin_cache(self, seq_len, device, dtype):
172
+ self.max_seq_len_cached = seq_len
173
+ t = torch.arange(self.max_seq_len_cached, device=device, dtype=self.inv_freq.dtype)
174
+ t = t / self.scaling_factor
175
+
176
+ freqs = torch.outer(t, self.inv_freq)
177
+ # Different from paper, but it uses a different permutation in order to obtain the same calculation
178
+ emb = torch.cat((freqs, freqs), dim=-1)
179
+ self.register_buffer("cos_cached", emb.cos().to(dtype), persistent=False)
180
+ self.register_buffer("sin_cached", emb.sin().to(dtype), persistent=False)
181
+
182
+
183
+ class MiniCPMDynamicNTKScalingRotaryEmbedding(MiniCPMRotaryEmbedding):
184
+ """MiniCPMRotaryEmbedding extended with Dynamic NTK scaling. Credits to the Reddit users /u/bloc97 and /u/emozilla"""
185
+
186
+ def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None, scaling_factor=1.0):
187
+ self.scaling_factor = scaling_factor
188
+ super().__init__(dim, max_position_embeddings, base, device)
189
+
190
+ def _set_cos_sin_cache(self, seq_len, device, dtype):
191
+ self.max_seq_len_cached = seq_len
192
+
193
+ if seq_len > self.max_position_embeddings:
194
+ base = self.base * (
195
+ (self.scaling_factor * seq_len / self.max_position_embeddings) - (self.scaling_factor - 1)
196
+ ) ** (self.dim / (self.dim - 2))
197
+ inv_freq = 1.0 / (base ** (torch.arange(0, self.dim, 2).float().to(device) / self.dim))
198
+ self.register_buffer("inv_freq", inv_freq, persistent=False)
199
+
200
+ t = torch.arange(self.max_seq_len_cached, device=device, dtype=self.inv_freq.dtype)
201
+
202
+ freqs = torch.outer(t, self.inv_freq)
203
+ # Different from paper, but it uses a different permutation in order to obtain the same calculation
204
+ emb = torch.cat((freqs, freqs), dim=-1)
205
+
206
+ self.register_buffer("cos_cached", emb.cos().to(dtype), persistent=False)
207
+ self.register_buffer("sin_cached", emb.sin().to(dtype), persistent=False)
208
+
209
+
210
+ def rotate_half(x):
211
+ """Rotates half the hidden dims of the input."""
212
+ x1 = x[..., : x.shape[-1] // 2]
213
+ x2 = x[..., x.shape[-1] // 2 :]
214
+ return torch.cat((-x2, x1), dim=-1)
215
+
216
+
217
+ def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
218
+ """Applies Rotary Position Embedding to the query and key tensors.
219
+
220
+ Args:
221
+ q (`torch.Tensor`): The query tensor.
222
+ k (`torch.Tensor`): The key tensor.
223
+ cos (`torch.Tensor`): The cosine part of the rotary embedding.
224
+ sin (`torch.Tensor`): The sine part of the rotary embedding.
225
+ position_ids (`torch.Tensor`):
226
+ The position indices of the tokens corresponding to the query and key tensors. For example, this can be
227
+ used to pass offsetted position ids when working with a KV-cache.
228
+ unsqueeze_dim (`int`, *optional*, defaults to 1):
229
+ The 'unsqueeze_dim' argument specifies the dimension along which to unsqueeze cos[position_ids] and
230
+ sin[position_ids] so that they can be properly broadcasted to the dimensions of q and k. For example, note
231
+ that cos[position_ids] and sin[position_ids] have the shape [batch_size, seq_len, head_dim]. Then, if q and
232
+ k have the shape [batch_size, heads, seq_len, head_dim], then setting unsqueeze_dim=1 makes
233
+ cos[position_ids] and sin[position_ids] broadcastable to the shapes of q and k. Similarly, if q and k have
234
+ the shape [batch_size, seq_len, heads, head_dim], then set unsqueeze_dim=2.
235
+ Returns:
236
+ `tuple(torch.Tensor)` comprising of the query and key tensors rotated using the Rotary Position Embedding.
237
+ """
238
+ # cos = cos[position_ids].unsqueeze(unsqueeze_dim)
239
+ # sin = sin[position_ids].unsqueeze(unsqueeze_dim)
240
+ # q_embed = (q * cos) + (rotate_half(q) * sin)
241
+ # k_embed = (k * cos) + (rotate_half(k) * sin)
242
+ orig_dtype = k.dtype
243
+ cos = cos[position_ids].unsqueeze(unsqueeze_dim) # [bs, 1, seq_len, dim]
244
+ sin = sin[position_ids].unsqueeze(unsqueeze_dim) # [bs, 1, seq_len, dim]
245
+ q_fp32 = q.to(dtype=torch.float32, device=q.device)
246
+ k_fp32 = k.to(dtype=torch.float32, device=k.device)
247
+ q_embed = (q_fp32 * cos) + (rotate_half(q_fp32) * sin)
248
+ k_embed = (k_fp32 * cos) + (rotate_half(k_fp32) * sin)
249
+ return q_embed.to(dtype=orig_dtype), k_embed.to(dtype=orig_dtype)
250
+
251
+ class MiniCPMMLP(nn.Module):
252
+ def __init__(self, config):
253
+ super().__init__()
254
+ self.config = config
255
+ self.hidden_size = config.hidden_size
256
+ self.intermediate_size = config.intermediate_size
257
+ self.gate_proj = nn.Linear(self.hidden_size, self.intermediate_size, bias=False)
258
+ self.up_proj = nn.Linear(self.hidden_size, self.intermediate_size, bias=False)
259
+ self.down_proj = nn.Linear(self.intermediate_size, self.hidden_size, bias=False)
260
+ self.act_fn = ACT2FN[config.hidden_act]
261
+
262
+ def forward(self, x):
263
+ if self.config.pretraining_tp > 1:
264
+ slice = self.intermediate_size // self.config.pretraining_tp
265
+ gate_proj_slices = self.gate_proj.weight.split(slice, dim=0)
266
+ up_proj_slices = self.up_proj.weight.split(slice, dim=0)
267
+ down_proj_slices = self.down_proj.weight.split(slice, dim=1)
268
+
269
+ gate_proj = torch.cat(
270
+ [F.linear(x, gate_proj_slices[i]) for i in range(self.config.pretraining_tp)], dim=-1
271
+ )
272
+ up_proj = torch.cat([F.linear(x, up_proj_slices[i]) for i in range(self.config.pretraining_tp)], dim=-1)
273
+
274
+ intermediate_states = (self.act_fn(gate_proj) * up_proj).split(slice, dim=2)
275
+ down_proj = [
276
+ F.linear(intermediate_states[i], down_proj_slices[i]) for i in range(self.config.pretraining_tp)
277
+ ]
278
+ down_proj = sum(down_proj)
279
+ else:
280
+ down_proj = self.down_proj(self.act_fn(self.gate_proj(x)) * self.up_proj(x))
281
+
282
+ return down_proj
283
+
284
+
285
+ def repeat_kv(hidden_states: torch.Tensor, n_rep: int) -> torch.Tensor:
286
+ """
287
+ This is the equivalent of torch.repeat_interleave(x, dim=1, repeats=n_rep). The hidden states go from (batch,
288
+ num_key_value_heads, seqlen, head_dim) to (batch, num_attention_heads, seqlen, head_dim)
289
+ """
290
+ batch, num_key_value_heads, slen, head_dim = hidden_states.shape
291
+ if n_rep == 1:
292
+ return hidden_states
293
+ hidden_states = hidden_states[:, :, None, :, :].expand(batch, num_key_value_heads, n_rep, slen, head_dim)
294
+ return hidden_states.reshape(batch, num_key_value_heads * n_rep, slen, head_dim)
295
+
296
+
297
+
298
+ class MiniCPMAttention(nn.Module):
299
+ """Multi-headed attention from 'Attention Is All You Need' paper"""
300
+
301
+ def __init__(self, config: MiniCPMConfig, layer_idx: Optional[int] = None):
302
+ super().__init__()
303
+ self.config = config
304
+ self.layer_idx = layer_idx
305
+ if layer_idx is None:
306
+ logger.warning_once(
307
+ f"Instantiating {self.__class__.__name__} without passing `layer_idx` is not recommended and will "
308
+ "to errors during the forward call, if caching is used. Please make sure to provide a `layer_idx` "
309
+ "when creating this class."
310
+ )
311
+
312
+ self.attention_dropout = config.attention_dropout
313
+ self.hidden_size = config.hidden_size
314
+ self.num_heads = config.num_attention_heads
315
+ self.head_dim = self.hidden_size // self.num_heads
316
+ self.num_key_value_heads = config.num_key_value_heads
317
+ self.num_key_value_groups = self.num_heads // self.num_key_value_heads
318
+ self.max_position_embeddings = config.max_position_embeddings
319
+ self.rope_theta = config.rope_theta
320
+ self.is_causal = True
321
+
322
+ if (self.head_dim * self.num_heads) != self.hidden_size:
323
+ raise ValueError(
324
+ f"hidden_size must be divisible by num_heads (got `hidden_size`: {self.hidden_size}"
325
+ f" and `num_heads`: {self.num_heads})."
326
+ )
327
+
328
+ self.q_proj = nn.Linear(self.hidden_size, self.num_heads * self.head_dim, bias=config.attention_bias)
329
+ self.k_proj = nn.Linear(self.hidden_size, self.num_key_value_heads * self.head_dim, bias=config.attention_bias)
330
+ self.v_proj = nn.Linear(self.hidden_size, self.num_key_value_heads * self.head_dim, bias=config.attention_bias)
331
+ self.o_proj = nn.Linear(self.num_heads * self.head_dim, self.hidden_size, bias=config.attention_bias)
332
+ self._init_rope()
333
+
334
+ def _init_rope(self):
335
+ if self.config.rope_scaling is None:
336
+ self.rotary_emb = MiniCPMRotaryEmbedding(
337
+ self.head_dim,
338
+ max_position_embeddings=self.max_position_embeddings,
339
+ base=self.rope_theta,
340
+ )
341
+ else:
342
+ scaling_type = self.config.rope_scaling["type"]
343
+ scaling_factor = self.config.rope_scaling["factor"]
344
+ if scaling_type == "linear":
345
+ self.rotary_emb = MiniCPMLinearScalingRotaryEmbedding(
346
+ self.head_dim,
347
+ max_position_embeddings=self.max_position_embeddings,
348
+ scaling_factor=scaling_factor,
349
+ base=self.rope_theta,
350
+ )
351
+ elif scaling_type == "dynamic":
352
+ self.rotary_emb = MiniCPMDynamicNTKScalingRotaryEmbedding(
353
+ self.head_dim,
354
+ max_position_embeddings=self.max_position_embeddings,
355
+ scaling_factor=scaling_factor,
356
+ base=self.rope_theta,
357
+ )
358
+ else:
359
+ raise ValueError(f"Unknown RoPE scaling type {scaling_type}")
360
+
361
+ def _shape(self, tensor: torch.Tensor, seq_len: int, bsz: int):
362
+ return tensor.view(bsz, seq_len, self.num_heads, self.head_dim).transpose(1, 2).contiguous()
363
+
364
+ def forward(
365
+ self,
366
+ hidden_states: torch.Tensor,
367
+ attention_mask: Optional[torch.Tensor] = None,
368
+ position_ids: Optional[torch.LongTensor] = None,
369
+ past_key_value: Optional[Cache] = None,
370
+ output_attentions: bool = False,
371
+ use_cache: bool = False,
372
+ **kwargs,
373
+ ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
374
+ if "padding_mask" in kwargs:
375
+ warnings.warn(
376
+ "Passing `padding_mask` is deprecated and will be removed in v4.37. Please make sure use `attention_mask` instead.`"
377
+ )
378
+
379
+ bsz, q_len, _ = hidden_states.size()
380
+
381
+ if self.config.pretraining_tp > 1:
382
+ key_value_slicing = (self.num_key_value_heads * self.head_dim) // self.config.pretraining_tp
383
+ query_slices = self.q_proj.weight.split(
384
+ (self.num_heads * self.head_dim) // self.config.pretraining_tp, dim=0
385
+ )
386
+ key_slices = self.k_proj.weight.split(key_value_slicing, dim=0)
387
+ value_slices = self.v_proj.weight.split(key_value_slicing, dim=0)
388
+
389
+ query_states = [F.linear(hidden_states, query_slices[i]) for i in range(self.config.pretraining_tp)]
390
+ query_states = torch.cat(query_states, dim=-1)
391
+
392
+ key_states = [F.linear(hidden_states, key_slices[i]) for i in range(self.config.pretraining_tp)]
393
+ key_states = torch.cat(key_states, dim=-1)
394
+
395
+ value_states = [F.linear(hidden_states, value_slices[i]) for i in range(self.config.pretraining_tp)]
396
+ value_states = torch.cat(value_states, dim=-1)
397
+
398
+ else:
399
+ query_states = self.q_proj(hidden_states)
400
+ key_states = self.k_proj(hidden_states)
401
+ value_states = self.v_proj(hidden_states)
402
+
403
+ query_states = query_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2)
404
+ key_states = key_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
405
+ value_states = value_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
406
+
407
+ kv_seq_len = key_states.shape[-2]
408
+ if past_key_value is not None:
409
+ if self.layer_idx is None:
410
+ raise ValueError(
411
+ f"The cache structure has changed since version v4.36. If you are using {self.__class__.__name__} "
412
+ "for auto-regressive decoding with k/v caching, please make sure to initialize the attention class "
413
+ "with a layer index."
414
+ )
415
+ kv_seq_len += past_key_value.get_usable_length(kv_seq_len, self.layer_idx)
416
+ cos, sin = self.rotary_emb(value_states.to(torch.float32), seq_len=kv_seq_len)
417
+
418
+ query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids)
419
+
420
+ if past_key_value is not None:
421
+ cache_kwargs = {"sin": sin, "cos": cos} # Specific to RoPE models
422
+ key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx, cache_kwargs)
423
+
424
+ key_states = repeat_kv(key_states, self.num_key_value_groups)
425
+ value_states = repeat_kv(value_states, self.num_key_value_groups)
426
+
427
+ attn_weights = torch.matmul(query_states, key_states.transpose(2, 3)) / math.sqrt(self.head_dim)
428
+ if attn_weights.size() != (bsz, self.num_heads, q_len, kv_seq_len):
429
+ raise ValueError(
430
+ f"Attention weights should be of size {(bsz, self.num_heads, q_len, kv_seq_len)}, but is"
431
+ f" {attn_weights.size()}"
432
+ )
433
+
434
+ if attention_mask is not None:
435
+ if attention_mask.size() != (bsz, 1, q_len, kv_seq_len):
436
+ raise ValueError(
437
+ f"Attention mask should be of size {(bsz, 1, q_len, kv_seq_len)}, but is {attention_mask.size()}"
438
+ )
439
+ attn_weights = attn_weights + attention_mask
440
+
441
+ # upcast attention to fp32
442
+ attn_weights = nn.functional.softmax(attn_weights, dim=-1, dtype=torch.float32).to(query_states.dtype)
443
+ attn_weights = nn.functional.dropout(attn_weights, p=self.attention_dropout, training=self.training)
444
+ attn_output = torch.matmul(attn_weights, value_states)
445
+
446
+ if attn_output.size() != (bsz, self.num_heads, q_len, self.head_dim):
447
+ raise ValueError(
448
+ f"`attn_output` should be of size {(bsz, self.num_heads, q_len, self.head_dim)}, but is"
449
+ f" {attn_output.size()}"
450
+ )
451
+
452
+ attn_output = attn_output.transpose(1, 2).contiguous()
453
+
454
+ attn_output = attn_output.reshape(bsz, q_len, self.hidden_size)
455
+
456
+ if self.config.pretraining_tp > 1:
457
+ attn_output = attn_output.split(self.hidden_size // self.config.pretraining_tp, dim=2)
458
+ o_proj_slices = self.o_proj.weight.split(self.hidden_size // self.config.pretraining_tp, dim=1)
459
+ attn_output = sum([F.linear(attn_output[i], o_proj_slices[i]) for i in range(self.config.pretraining_tp)])
460
+ else:
461
+ attn_output = self.o_proj(attn_output)
462
+
463
+ if not output_attentions:
464
+ attn_weights = None
465
+
466
+ return attn_output, attn_weights, past_key_value
467
+
468
+
469
+ class MiniCPMFlashAttention2(MiniCPMAttention):
470
+ """
471
+ MiniCPM flash attention module. This module inherits from `MiniCPMAttention` as the weights of the module stays
472
+ untouched. The only required change would be on the forward pass where it needs to correctly call the public API of
473
+ flash attention and deal with padding tokens in case the input contains any of them.
474
+ """
475
+
476
+ def __init__(self, *args, **kwargs):
477
+ super().__init__(*args, **kwargs)
478
+
479
+ # TODO: Should be removed once Flash Attention for RoCm is bumped to 2.1.
480
+ # 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.
481
+ # 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).
482
+ self._flash_attn_uses_top_left_mask = not is_flash_attn_greater_or_equal_2_10()
483
+
484
+ def forward(
485
+ self,
486
+ hidden_states: torch.Tensor,
487
+ attention_mask: Optional[torch.LongTensor] = None,
488
+ position_ids: Optional[torch.LongTensor] = None,
489
+ past_key_value: Optional[Cache] = None,
490
+ output_attentions: bool = False,
491
+ use_cache: bool = False,
492
+ **kwargs,
493
+ ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
494
+ # MiniCPMFlashAttention2 attention does not support output_attentions
495
+ if "padding_mask" in kwargs:
496
+ warnings.warn(
497
+ "Passing `padding_mask` is deprecated and will be removed in v4.37. Please make sure use `attention_mask` instead.`"
498
+ )
499
+
500
+ # overwrite attention_mask with padding_mask
501
+ attention_mask = kwargs.pop("padding_mask")
502
+
503
+ output_attentions = False
504
+
505
+ bsz, q_len, _ = hidden_states.size()
506
+
507
+ query_states = self.q_proj(hidden_states)
508
+ key_states = self.k_proj(hidden_states)
509
+ value_states = self.v_proj(hidden_states)
510
+
511
+ # Flash attention requires the input to have the shape
512
+ # batch_size x seq_length x head_dim x hidden_dim
513
+ # therefore we just need to keep the original shape
514
+ query_states = query_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2)
515
+ key_states = key_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
516
+ value_states = value_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
517
+
518
+ kv_seq_len = key_states.shape[-2]
519
+ if past_key_value is not None:
520
+ kv_seq_len += past_key_value.get_usable_length(kv_seq_len, self.layer_idx)
521
+ cos, sin = self.rotary_emb(value_states.to(torch.float32), seq_len=kv_seq_len)
522
+ query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids)
523
+
524
+ if past_key_value is not None:
525
+ cache_kwargs = {"sin": sin, "cos": cos} # Specific to RoPE models
526
+ key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx, cache_kwargs)
527
+
528
+ # TODO: These transpose are quite inefficient but Flash Attention requires the layout [batch_size, sequence_length, num_heads, head_dim]. We would need to refactor the KV cache
529
+ # to be able to avoid many of these transpose/reshape/view.
530
+ query_states = query_states.transpose(1, 2)
531
+ key_states = key_states.transpose(1, 2)
532
+ value_states = value_states.transpose(1, 2)
533
+
534
+ dropout_rate = self.attention_dropout if self.training else 0.0
535
+
536
+ # In PEFT, usually we cast the layer norms in float32 for training stability reasons
537
+ # therefore the input hidden states gets silently casted in float32. Hence, we need
538
+ # cast them back in the correct dtype just to be sure everything works as expected.
539
+ # This might slowdown training & inference so it is recommended to not cast the LayerNorms
540
+ # in fp32. (MiniCPMRMSNorm handles it correctly)
541
+
542
+ input_dtype = query_states.dtype
543
+ if input_dtype == torch.float32:
544
+ # Handle the case where the model is quantized
545
+ if hasattr(self.config, "_pre_quantization_dtype"):
546
+ target_dtype = self.config._pre_quantization_dtype
547
+ else:
548
+ target_dtype = self.q_proj.weight.dtype
549
+
550
+ logger.warning_once(
551
+ f"The input hidden states seems to be silently casted in float32, this might be related to"
552
+ f" the fact you have upcasted embedding or layer norm layers in float32. We will cast back the input in"
553
+ f" {target_dtype}."
554
+ )
555
+
556
+ query_states = query_states.to(target_dtype)
557
+ key_states = key_states.to(target_dtype)
558
+ value_states = value_states.to(target_dtype)
559
+
560
+ attn_output = self._flash_attention_forward(
561
+ query_states, key_states, value_states, attention_mask, q_len, dropout=dropout_rate
562
+ )
563
+
564
+ attn_output = attn_output.reshape(bsz, q_len, self.hidden_size).contiguous()
565
+ attn_output = self.o_proj(attn_output)
566
+
567
+ if not output_attentions:
568
+ attn_weights = None
569
+
570
+ return attn_output, attn_weights, past_key_value
571
+
572
+ def _flash_attention_forward(
573
+ self, query_states, key_states, value_states, attention_mask, query_length, dropout=0.0, softmax_scale=None
574
+ ):
575
+ """
576
+ Calls the forward method of Flash Attention - if the input hidden states contain at least one padding token
577
+ first unpad the input, then computes the attention scores and pad the final attention scores.
578
+
579
+ Args:
580
+ query_states (`torch.Tensor`):
581
+ Input query states to be passed to Flash Attention API
582
+ key_states (`torch.Tensor`):
583
+ Input key states to be passed to Flash Attention API
584
+ value_states (`torch.Tensor`):
585
+ Input value states to be passed to Flash Attention API
586
+ attention_mask (`torch.Tensor`):
587
+ The padding mask - corresponds to a tensor of size `(batch_size, seq_len)` where 0 stands for the
588
+ position of padding tokens and 1 for the position of non-padding tokens.
589
+ dropout (`int`, *optional*):
590
+ Attention dropout
591
+ softmax_scale (`float`, *optional*):
592
+ The scaling of QK^T before applying softmax. Default to 1 / sqrt(head_dim)
593
+ """
594
+ if not self._flash_attn_uses_top_left_mask:
595
+ causal = self.is_causal
596
+ else:
597
+ # TODO: Remove the `query_length != 1` check once Flash Attention for RoCm is bumped to 2.1. For details, please see the comment in MiniCPMFlashAttention2 __init__.
598
+ causal = self.is_causal and query_length != 1
599
+ # Contains at least one padding token in the sequence
600
+ if attention_mask is not None:
601
+ batch_size = query_states.shape[0]
602
+ query_states, key_states, value_states, indices_q, cu_seq_lens, max_seq_lens = self._upad_input(
603
+ query_states, key_states, value_states, attention_mask, query_length
604
+ )
605
+
606
+ cu_seqlens_q, cu_seqlens_k = cu_seq_lens
607
+ max_seqlen_in_batch_q, max_seqlen_in_batch_k = max_seq_lens
608
+ attn_output_unpad = flash_attn_varlen_func(
609
+ query_states,
610
+ key_states,
611
+ value_states,
612
+ cu_seqlens_q=cu_seqlens_q,
613
+ cu_seqlens_k=cu_seqlens_k,
614
+ max_seqlen_q=max_seqlen_in_batch_q,
615
+ max_seqlen_k=max_seqlen_in_batch_k,
616
+ dropout_p=dropout,
617
+ softmax_scale=softmax_scale,
618
+ causal=causal,
619
+ )
620
+
621
+ attn_output = pad_input(attn_output_unpad, indices_q, batch_size, query_length)
622
+ else:
623
+ attn_output = flash_attn_func(
624
+ query_states, key_states, value_states, dropout, softmax_scale=softmax_scale, causal=causal
625
+ )
626
+
627
+ return attn_output
628
+
629
+ def _upad_input(self, query_layer, key_layer, value_layer, attention_mask, query_length):
630
+ indices_k, cu_seqlens_k, max_seqlen_in_batch_k = _get_unpad_data(attention_mask)
631
+ batch_size, kv_seq_len, num_key_value_heads, head_dim = key_layer.shape
632
+
633
+ key_layer = index_first_axis(
634
+ key_layer.reshape(batch_size * kv_seq_len, num_key_value_heads, head_dim), indices_k
635
+ )
636
+ value_layer = index_first_axis(
637
+ value_layer.reshape(batch_size * kv_seq_len, num_key_value_heads, head_dim), indices_k
638
+ )
639
+ if query_length == kv_seq_len:
640
+ query_layer = index_first_axis(
641
+ query_layer.reshape(batch_size * kv_seq_len, self.num_heads, head_dim), indices_k
642
+ )
643
+ cu_seqlens_q = cu_seqlens_k
644
+ max_seqlen_in_batch_q = max_seqlen_in_batch_k
645
+ indices_q = indices_k
646
+ elif query_length == 1:
647
+ max_seqlen_in_batch_q = 1
648
+ cu_seqlens_q = torch.arange(
649
+ batch_size + 1, dtype=torch.int32, device=query_layer.device
650
+ ) # There is a memcpy here, that is very bad.
651
+ indices_q = cu_seqlens_q[:-1]
652
+ query_layer = query_layer.squeeze(1)
653
+ else:
654
+ # The -q_len: slice assumes left padding.
655
+ attention_mask = attention_mask[:, -query_length:]
656
+ query_layer, indices_q, cu_seqlens_q, max_seqlen_in_batch_q = unpad_input(query_layer, attention_mask)
657
+
658
+ return (
659
+ query_layer,
660
+ key_layer,
661
+ value_layer,
662
+ indices_q,
663
+ (cu_seqlens_q, cu_seqlens_k),
664
+ (max_seqlen_in_batch_q, max_seqlen_in_batch_k),
665
+ )
666
+
667
+
668
+ class MiniCPMSdpaAttention(MiniCPMAttention):
669
+ """
670
+ MiniCPM attention module using torch.nn.functional.scaled_dot_product_attention. This module inherits from
671
+ `MiniCPMAttention` as the weights of the module stays untouched. The only changes are on the forward pass to adapt to
672
+ SDPA API.
673
+ """
674
+
675
+ # Adapted from MiniCPMAttention.forward
676
+ def forward(
677
+ self,
678
+ hidden_states: torch.Tensor,
679
+ attention_mask: Optional[torch.Tensor] = None,
680
+ position_ids: Optional[torch.LongTensor] = None,
681
+ past_key_value: Optional[Cache] = None,
682
+ output_attentions: bool = False,
683
+ use_cache: bool = False,
684
+ ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
685
+ if output_attentions:
686
+ # TODO: Improve this warning with e.g. `model.config.attn_implementation = "manual"` once this is implemented.
687
+ logger.warning_once(
688
+ "MiniCPMModel is using MiniCPMSdpaAttention, but `torch.nn.functional.scaled_dot_product_attention` does not support `output_attentions=True`. Falling back to the manual attention implementation, "
689
+ '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.'
690
+ )
691
+ return super().forward(
692
+ hidden_states=hidden_states,
693
+ attention_mask=attention_mask,
694
+ position_ids=position_ids,
695
+ past_key_value=past_key_value,
696
+ output_attentions=output_attentions,
697
+ use_cache=use_cache,
698
+ )
699
+
700
+ bsz, q_len, _ = hidden_states.size()
701
+
702
+ query_states = self.q_proj(hidden_states)
703
+ key_states = self.k_proj(hidden_states)
704
+ value_states = self.v_proj(hidden_states)
705
+
706
+ query_states = query_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2)
707
+ key_states = key_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
708
+ value_states = value_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2)
709
+
710
+ kv_seq_len = key_states.shape[-2]
711
+ if past_key_value is not None:
712
+ kv_seq_len += past_key_value.get_usable_length(kv_seq_len, self.layer_idx)
713
+ cos, sin = self.rotary_emb(value_states, seq_len=kv_seq_len)
714
+
715
+ query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids)
716
+
717
+ if past_key_value is not None:
718
+ cache_kwargs = {"sin": sin, "cos": cos} # Specific to RoPE models
719
+ key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx, cache_kwargs)
720
+
721
+ key_states = repeat_kv(key_states, self.num_key_value_groups)
722
+ value_states = repeat_kv(value_states, self.num_key_value_groups)
723
+
724
+ if attention_mask is not None:
725
+ if attention_mask.size() != (bsz, 1, q_len, kv_seq_len):
726
+ raise ValueError(
727
+ f"Attention mask should be of size {(bsz, 1, q_len, kv_seq_len)}, but is {attention_mask.size()}"
728
+ )
729
+
730
+ # SDPA with memory-efficient backend is currently (torch==2.1.2) bugged with non-contiguous inputs with custom attn_mask,
731
+ # Reference: https://github.com/pytorch/pytorch/issues/112577.
732
+ if query_states.device.type == "cuda" and attention_mask is not None:
733
+ query_states = query_states.contiguous()
734
+ key_states = key_states.contiguous()
735
+ value_states = value_states.contiguous()
736
+
737
+ attn_output = torch.nn.functional.scaled_dot_product_attention(
738
+ query_states,
739
+ key_states,
740
+ value_states,
741
+ attn_mask=attention_mask,
742
+ dropout_p=self.attention_dropout if self.training else 0.0,
743
+ # 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.
744
+ is_causal=self.is_causal and attention_mask is None and q_len > 1,
745
+ )
746
+
747
+ attn_output = attn_output.transpose(1, 2).contiguous()
748
+ attn_output = attn_output.reshape(bsz, q_len, self.hidden_size)
749
+
750
+ attn_output = self.o_proj(attn_output)
751
+
752
+ return attn_output, None, past_key_value
753
+
754
+
755
+ MINICPM_ATTENTION_CLASSES = {
756
+ "eager": MiniCPMAttention,
757
+ "flash_attention_2": MiniCPMFlashAttention2,
758
+ "sdpa": MiniCPMSdpaAttention,
759
+ }
760
+
761
+
762
+ class MiniCPMDecoderLayer(nn.Module):
763
+ def __init__(self, config: MiniCPMConfig, layer_idx: int):
764
+ super().__init__()
765
+ self.hidden_size = config.hidden_size
766
+
767
+ self.self_attn = MINICPM_ATTENTION_CLASSES[config._attn_implementation](config=config, layer_idx=layer_idx)
768
+
769
+ self.mlp = MiniCPMMLP(config)
770
+ self.input_layernorm = MiniCPMRMSNorm(config.hidden_size, eps=config.rms_norm_eps)
771
+ self.post_attention_layernorm = MiniCPMRMSNorm(config.hidden_size, eps=config.rms_norm_eps)
772
+
773
+ self.scale_depth = config.scale_depth
774
+ self.num_hidden_layers = config.num_hidden_layers
775
+
776
+ def forward(
777
+ self,
778
+ hidden_states: torch.Tensor,
779
+ attention_mask: Optional[torch.Tensor] = None,
780
+ position_ids: Optional[torch.LongTensor] = None,
781
+ past_key_value: Optional[Tuple[torch.Tensor]] = None,
782
+ output_attentions: Optional[bool] = False,
783
+ use_cache: Optional[bool] = False,
784
+ **kwargs,
785
+ ) -> Tuple[torch.FloatTensor, Optional[Tuple[torch.FloatTensor, torch.FloatTensor]]]:
786
+ """
787
+ Args:
788
+ hidden_states (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)`
789
+ attention_mask (`torch.FloatTensor`, *optional*):
790
+ attention mask of size `(batch_size, sequence_length)` if flash attention is used or `(batch_size, 1,
791
+ query_sequence_length, key_sequence_length)` if default attention is used.
792
+ output_attentions (`bool`, *optional*):
793
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under
794
+ returned tensors for more detail.
795
+ use_cache (`bool`, *optional*):
796
+ If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding
797
+ (see `past_key_values`).
798
+ past_key_value (`Tuple(torch.FloatTensor)`, *optional*): cached past key and value projection states
799
+ """
800
+ if "padding_mask" in kwargs:
801
+ warnings.warn(
802
+ "Passing `padding_mask` is deprecated and will be removed in v4.37. Please make sure use `attention_mask` instead.`"
803
+ )
804
+
805
+ residual = hidden_states
806
+ hidden_states = self.input_layernorm(hidden_states)
807
+ # Self Attention
808
+ hidden_states, self_attn_weights, present_key_value = self.self_attn(
809
+ hidden_states=hidden_states,
810
+ attention_mask=attention_mask,
811
+ position_ids=position_ids,
812
+ past_key_value=past_key_value,
813
+ output_attentions=output_attentions,
814
+ use_cache=use_cache,
815
+ **kwargs,
816
+ )
817
+
818
+ hidden_states = residual + hidden_states * (self.scale_depth / math.sqrt(self.num_hidden_layers))
819
+
820
+ # Fully Connected
821
+ residual = hidden_states
822
+ hidden_states = self.post_attention_layernorm(hidden_states)
823
+
824
+ hidden_states = self.mlp(hidden_states)
825
+ hidden_states = residual + hidden_states * (self.scale_depth / math.sqrt(self.num_hidden_layers))
826
+
827
+ outputs = (hidden_states,)
828
+
829
+ if output_attentions:
830
+ outputs += (self_attn_weights,)
831
+
832
+ if use_cache:
833
+ outputs += (present_key_value,)
834
+
835
+ return outputs
836
+
837
+
838
+ MINICPM_START_DOCSTRING = r"""
839
+ This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the
840
+ library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
841
+ etc.)
842
+
843
+ This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass.
844
+ Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage
845
+ and behavior.
846
+
847
+ Parameters:
848
+ config ([`MiniCPMConfig`]):
849
+ Model configuration class with all the parameters of the model. Initializing with a config file does not
850
+ load the weights associated with the model, only the configuration. Check out the
851
+ [`~PreTrainedModel.from_pretrained`] method to load the model weights.
852
+ """
853
+
854
+
855
+ @add_start_docstrings(
856
+ "The bare MiniCPM Model outputting raw hidden-states without any specific head on top.",
857
+ MINICPM_START_DOCSTRING,
858
+ )
859
+ class MiniCPMPreTrainedModel(PreTrainedModel):
860
+ config_class = MiniCPMConfig
861
+ base_model_prefix = "model"
862
+ supports_gradient_checkpointing = True
863
+ _no_split_modules = ["MiniCPMDecoderLayer"]
864
+ _skip_keys_device_placement = "past_key_values"
865
+ _supports_flash_attn_2 = True
866
+ _supports_sdpa = True
867
+ _supports_cache_class = True
868
+
869
+ def _init_weights(self, module):
870
+ std = self.config.initializer_range
871
+ if isinstance(module, nn.Linear):
872
+ module.weight.data.normal_(mean=0.0, std=std)
873
+ if module.bias is not None:
874
+ module.bias.data.zero_()
875
+ elif isinstance(module, nn.Embedding):
876
+ module.weight.data.normal_(mean=0.0, std=std)
877
+ if module.padding_idx is not None:
878
+ module.weight.data[module.padding_idx].zero_()
879
+
880
+
881
+ MINICPM_INPUTS_DOCSTRING = r"""
882
+ Args:
883
+ input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`):
884
+ Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you provide
885
+ it.
886
+
887
+ Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
888
+ [`PreTrainedTokenizer.__call__`] for details.
889
+
890
+ [What are input IDs?](../glossary#input-ids)
891
+ attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
892
+ Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
893
+
894
+ - 1 for tokens that are **not masked**,
895
+ - 0 for tokens that are **masked**.
896
+
897
+ [What are attention masks?](../glossary#attention-mask)
898
+
899
+ Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
900
+ [`PreTrainedTokenizer.__call__`] for details.
901
+
902
+ If `past_key_values` is used, optionally only the last `input_ids` have to be input (see
903
+ `past_key_values`).
904
+
905
+ If you want to change padding behavior, you should read [`modeling_opt._prepare_decoder_attention_mask`]
906
+ and modify to your needs. See diagram 1 in [the paper](https://arxiv.org/abs/1910.13461) for more
907
+ information on the default strategy.
908
+
909
+ - 1 indicates the head is **not masked**,
910
+ - 0 indicates the head is **masked**.
911
+ position_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
912
+ Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0,
913
+ config.n_positions - 1]`.
914
+
915
+ [What are position IDs?](../glossary#position-ids)
916
+ past_key_values (`Cache` or `tuple(tuple(torch.FloatTensor))`, *optional*):
917
+ Pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention
918
+ blocks) that can be used to speed up sequential decoding. This typically consists in the `past_key_values`
919
+ returned by the model at a previous stage of decoding, when `use_cache=True` or `config.use_cache=True`.
920
+
921
+ Two formats are allowed:
922
+ - a [`~cache_utils.Cache`] instance;
923
+ - Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of
924
+ shape `(batch_size, num_heads, sequence_length, embed_size_per_head)`). This is also known as the legacy
925
+ cache format.
926
+
927
+ The model will output the same cache format that is fed as input. If no `past_key_values` are passed, the
928
+ legacy cache format will be returned.
929
+
930
+ If `past_key_values` are used, the user can optionally input only the last `input_ids` (those that don't
931
+ have their past key value states given to this model) of shape `(batch_size, 1)` instead of all `input_ids`
932
+ of shape `(batch_size, sequence_length)`.
933
+ inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
934
+ Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This
935
+ is useful if you want more control over how to convert `input_ids` indices into associated vectors than the
936
+ model's internal embedding lookup matrix.
937
+ use_cache (`bool`, *optional*):
938
+ If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see
939
+ `past_key_values`).
940
+ output_attentions (`bool`, *optional*):
941
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
942
+ tensors for more detail.
943
+ output_hidden_states (`bool`, *optional*):
944
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
945
+ more detail.
946
+ return_dict (`bool`, *optional*):
947
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
948
+ """
949
+
950
+
951
+ @add_start_docstrings(
952
+ "The bare MiniCPM Model outputting raw hidden-states without any specific head on top.",
953
+ MINICPM_START_DOCSTRING,
954
+ )
955
+ class MiniCPMModel(MiniCPMPreTrainedModel):
956
+ """
957
+ Transformer decoder consisting of *config.num_hidden_layers* layers. Each layer is a [`MiniCPMDecoderLayer`]
958
+
959
+ Args:
960
+ config: MiniCPMConfig
961
+ """
962
+
963
+ def __init__(self, config: MiniCPMConfig):
964
+ super().__init__(config)
965
+ self.padding_idx = config.pad_token_id
966
+ self.vocab_size = config.vocab_size
967
+
968
+ self.embed_tokens = nn.Embedding(config.vocab_size, config.hidden_size, self.padding_idx)
969
+ self.layers = nn.ModuleList(
970
+ [MiniCPMDecoderLayer(config, layer_idx) for layer_idx in range(config.num_hidden_layers)]
971
+ )
972
+ self._use_sdpa = config._attn_implementation == "sdpa"
973
+ self._use_flash_attention_2 = config._attn_implementation == "flash_attention_2"
974
+
975
+ self.norm = MiniCPMRMSNorm(config.hidden_size, eps=config.rms_norm_eps)
976
+
977
+ self.gradient_checkpointing = False
978
+ # Initialize weights and apply final processing
979
+ self.post_init()
980
+
981
+ def get_input_embeddings(self):
982
+ return self.embed_tokens
983
+
984
+ def set_input_embeddings(self, value):
985
+ self.embed_tokens = value
986
+
987
+ @add_start_docstrings_to_model_forward(MINICPM_INPUTS_DOCSTRING)
988
+ def forward(
989
+ self,
990
+ input_ids: torch.LongTensor = None,
991
+ attention_mask: Optional[torch.Tensor] = None,
992
+ position_ids: Optional[torch.LongTensor] = None,
993
+ past_key_values: Optional[List[torch.FloatTensor]] = None,
994
+ inputs_embeds: Optional[torch.FloatTensor] = None,
995
+ use_cache: Optional[bool] = None,
996
+ output_attentions: Optional[bool] = None,
997
+ output_hidden_states: Optional[bool] = None,
998
+ return_dict: Optional[bool] = None,
999
+ ) -> Union[Tuple, BaseModelOutputWithPast]:
1000
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
1001
+ output_hidden_states = (
1002
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
1003
+ )
1004
+ use_cache = use_cache if use_cache is not None else self.config.use_cache
1005
+
1006
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1007
+
1008
+ # retrieve input_ids and inputs_embeds
1009
+ if input_ids is not None and inputs_embeds is not None:
1010
+ raise ValueError("You cannot specify both input_ids and inputs_embeds at the same time")
1011
+ elif input_ids is not None:
1012
+ batch_size, seq_length = input_ids.shape[:2]
1013
+ elif inputs_embeds is not None:
1014
+ batch_size, seq_length = inputs_embeds.shape[:2]
1015
+ else:
1016
+ raise ValueError("You have to specify either input_ids or inputs_embeds")
1017
+
1018
+ if self.gradient_checkpointing and self.training:
1019
+ if use_cache:
1020
+ logger.warning_once(
1021
+ "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..."
1022
+ )
1023
+ use_cache = False
1024
+
1025
+ past_key_values_length = 0
1026
+ if use_cache:
1027
+ use_legacy_cache = not isinstance(past_key_values, Cache)
1028
+ if use_legacy_cache:
1029
+ past_key_values = DynamicCache.from_legacy_cache(past_key_values)
1030
+ past_key_values_length = past_key_values.get_usable_length(seq_length)
1031
+
1032
+ if position_ids is None:
1033
+ device = input_ids.device if input_ids is not None else inputs_embeds.device
1034
+ position_ids = torch.arange(
1035
+ past_key_values_length, seq_length + past_key_values_length, dtype=torch.long, device=device
1036
+ )
1037
+ position_ids = position_ids.unsqueeze(0)
1038
+
1039
+ if inputs_embeds is None:
1040
+ inputs_embeds = self.embed_tokens(input_ids) * self.config.scale_emb
1041
+
1042
+ if self._use_flash_attention_2:
1043
+ # 2d mask is passed through the layers
1044
+ attention_mask = attention_mask if (attention_mask is not None and 0 in attention_mask) else None
1045
+ elif self._use_sdpa and not output_attentions:
1046
+ # output_attentions=True can not be supported when using SDPA, and we fall back on
1047
+ # the manual implementation that requires a 4D causal mask in all cases.
1048
+ attention_mask = _prepare_4d_causal_attention_mask_for_sdpa(
1049
+ attention_mask,
1050
+ (batch_size, seq_length),
1051
+ inputs_embeds,
1052
+ past_key_values_length,
1053
+ )
1054
+ else:
1055
+ # 4d mask is passed through the layers
1056
+ attention_mask = _prepare_4d_causal_attention_mask(
1057
+ attention_mask, (batch_size, seq_length), inputs_embeds, past_key_values_length
1058
+ )
1059
+
1060
+ # embed positions
1061
+ hidden_states = inputs_embeds
1062
+
1063
+ # decoder layers
1064
+ all_hidden_states = () if output_hidden_states else None
1065
+ all_self_attns = () if output_attentions else None
1066
+ next_decoder_cache = None
1067
+
1068
+ for decoder_layer in self.layers:
1069
+ if output_hidden_states:
1070
+ all_hidden_states += (hidden_states,)
1071
+
1072
+ if self.gradient_checkpointing and self.training:
1073
+ layer_outputs = self._gradient_checkpointing_func(
1074
+ decoder_layer.__call__,
1075
+ hidden_states,
1076
+ attention_mask,
1077
+ position_ids,
1078
+ past_key_values,
1079
+ output_attentions,
1080
+ use_cache,
1081
+ )
1082
+ else:
1083
+ layer_outputs = decoder_layer(
1084
+ hidden_states,
1085
+ attention_mask=attention_mask,
1086
+ position_ids=position_ids,
1087
+ past_key_value=past_key_values,
1088
+ output_attentions=output_attentions,
1089
+ use_cache=use_cache,
1090
+ )
1091
+
1092
+ hidden_states = layer_outputs[0]
1093
+
1094
+ if use_cache:
1095
+ next_decoder_cache = layer_outputs[2 if output_attentions else 1]
1096
+
1097
+ if output_attentions:
1098
+ all_self_attns += (layer_outputs[1],)
1099
+
1100
+ hidden_states = self.norm(hidden_states)
1101
+
1102
+ # add hidden states from the last decoder layer
1103
+ if output_hidden_states:
1104
+ all_hidden_states += (hidden_states,)
1105
+
1106
+ next_cache = None
1107
+ if use_cache:
1108
+ next_cache = next_decoder_cache.to_legacy_cache() if use_legacy_cache else next_decoder_cache
1109
+ if not return_dict:
1110
+ return tuple(v for v in [hidden_states, next_cache, all_hidden_states, all_self_attns] if v is not None)
1111
+ return BaseModelOutputWithPast(
1112
+ last_hidden_state=hidden_states,
1113
+ past_key_values=next_cache,
1114
+ hidden_states=all_hidden_states,
1115
+ attentions=all_self_attns,
1116
+ )
1117
+
1118
+
1119
+ class MiniCPMForCausalLM(MiniCPMPreTrainedModel):
1120
+ _tied_weights_keys = ["lm_head.weight"]
1121
+
1122
+ def __init__(self, config):
1123
+ super().__init__(config)
1124
+ self.model = MiniCPMModel(config)
1125
+ self.vocab_size = config.vocab_size
1126
+ self.lm_head = nn.Linear(config.hidden_size, config.vocab_size, bias=False)
1127
+
1128
+ # Initialize weights and apply final processing
1129
+ self.post_init()
1130
+
1131
+ def get_input_embeddings(self):
1132
+ return self.model.embed_tokens
1133
+
1134
+ def set_input_embeddings(self, value):
1135
+ self.model.embed_tokens = value
1136
+
1137
+ def get_output_embeddings(self):
1138
+ return self.lm_head
1139
+
1140
+ def set_output_embeddings(self, new_embeddings):
1141
+ self.lm_head = new_embeddings
1142
+
1143
+ def set_decoder(self, decoder):
1144
+ self.model = decoder
1145
+
1146
+ def get_decoder(self):
1147
+ return self.model
1148
+
1149
+ @add_start_docstrings_to_model_forward(MINICPM_INPUTS_DOCSTRING)
1150
+ @replace_return_docstrings(output_type=CausalLMOutputWithPast, config_class=_CONFIG_FOR_DOC)
1151
+ def forward(
1152
+ self,
1153
+ input_ids: torch.LongTensor = None,
1154
+ attention_mask: Optional[torch.Tensor] = None,
1155
+ position_ids: Optional[torch.LongTensor] = None,
1156
+ past_key_values: Optional[List[torch.FloatTensor]] = None,
1157
+ inputs_embeds: Optional[torch.FloatTensor] = None,
1158
+ labels: Optional[torch.LongTensor] = None,
1159
+ use_cache: Optional[bool] = None,
1160
+ output_attentions: Optional[bool] = None,
1161
+ output_hidden_states: Optional[bool] = None,
1162
+ return_dict: Optional[bool] = None,
1163
+ ) -> Union[Tuple, CausalLMOutputWithPast]:
1164
+ r"""
1165
+ Args:
1166
+ labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
1167
+ Labels for computing the masked language modeling loss. Indices should either be in `[0, ...,
1168
+ config.vocab_size]` or -100 (see `input_ids` docstring). Tokens with indices set to `-100` are ignored
1169
+ (masked), the loss is only computed for the tokens with labels in `[0, ..., config.vocab_size]`.
1170
+
1171
+ Returns:
1172
+
1173
+ Example:
1174
+
1175
+ ```python
1176
+ >>> from transformers import AutoTokenizer, MiniCPMForCausalLM
1177
+
1178
+ >>> model = MiniCPMForCausalLM.from_pretrained(PATH_TO_CONVERTED_WEIGHTS)
1179
+ >>> tokenizer = AutoTokenizer.from_pretrained(PATH_TO_CONVERTED_TOKENIZER)
1180
+
1181
+ >>> prompt = "Hey, are you conscious? Can you talk to me?"
1182
+ >>> inputs = tokenizer(prompt, return_tensors="pt")
1183
+
1184
+ >>> # Generate
1185
+ >>> generate_ids = model.generate(inputs.input_ids, max_length=30)
1186
+ >>> tokenizer.batch_decode(generate_ids, skip_special_tokens=True, clean_up_tokenization_spaces=False)[0]
1187
+ "Hey, are you conscious? Can you talk to me?\nI'm not conscious, but I can talk to you."
1188
+ ```"""
1189
+ output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
1190
+ output_hidden_states = (
1191
+ output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
1192
+ )
1193
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1194
+
1195
+ # decoder outputs consists of (dec_features, layer_state, dec_hidden, dec_attn)
1196
+ outputs = self.model(
1197
+ input_ids=input_ids,
1198
+ attention_mask=attention_mask,
1199
+ position_ids=position_ids,
1200
+ past_key_values=past_key_values,
1201
+ inputs_embeds=inputs_embeds,
1202
+ use_cache=use_cache,
1203
+ output_attentions=output_attentions,
1204
+ output_hidden_states=output_hidden_states,
1205
+ return_dict=return_dict,
1206
+ )
1207
+
1208
+ hidden_states = outputs[0]
1209
+ if self.config.pretraining_tp > 1:
1210
+ lm_head_slices = self.lm_head.weight.split(self.vocab_size // self.config.pretraining_tp, dim=0)
1211
+ logits = [F.linear(hidden_states, lm_head_slices[i]) for i in range(self.config.pretraining_tp)]
1212
+ logits = torch.cat(logits, dim=-1)
1213
+ else:
1214
+ logits = self.lm_head(hidden_states / (self.config.hidden_size / self.config.dim_model_base))
1215
+ logits = logits.float()
1216
+
1217
+ loss = None
1218
+ if labels is not None:
1219
+ # Shift so that tokens < n predict n
1220
+ shift_logits = logits[..., :-1, :].contiguous()
1221
+ shift_labels = labels[..., 1:].contiguous()
1222
+ # Flatten the tokens
1223
+ loss_fct = CrossEntropyLoss()
1224
+ shift_logits = shift_logits.view(-1, self.config.vocab_size)
1225
+ shift_labels = shift_labels.view(-1)
1226
+ # Enable model parallelism
1227
+ shift_labels = shift_labels.to(shift_logits.device)
1228
+ loss = loss_fct(shift_logits, shift_labels)
1229
+
1230
+ if not return_dict:
1231
+ output = (logits,) + outputs[1:]
1232
+ return (loss,) + output if loss is not None else output
1233
+
1234
+ return CausalLMOutputWithPast(
1235
+ loss=loss,
1236
+ logits=logits,
1237
+ past_key_values=outputs.past_key_values,
1238
+ hidden_states=outputs.hidden_states,
1239
+ attentions=outputs.attentions,
1240
+ )
1241
+
1242
+ def prepare_inputs_for_generation(
1243
+ self, input_ids, past_key_values=None, attention_mask=None, inputs_embeds=None, **kwargs
1244
+ ):
1245
+ if past_key_values is not None:
1246
+ if isinstance(past_key_values, Cache):
1247
+ cache_length = past_key_values.get_seq_length()
1248
+ past_length = past_key_values.seen_tokens
1249
+ max_cache_length = past_key_values.get_max_length()
1250
+ else:
1251
+ cache_length = past_length = past_key_values[0][0].shape[2]
1252
+ max_cache_length = None
1253
+
1254
+ # Keep only the unprocessed tokens:
1255
+ # 1 - If the length of the attention_mask exceeds the length of input_ids, then we are in a setting where
1256
+ # some of the inputs are exclusivelly passed as part of the cache (e.g. when passing input_embeds as
1257
+ # input)
1258
+ if attention_mask is not None and attention_mask.shape[1] > input_ids.shape[1]:
1259
+ input_ids = input_ids[:, -(attention_mask.shape[1] - past_length) :]
1260
+ # 2 - If the past_length is smaller than input_ids', then input_ids holds all input tokens. We can discard
1261
+ # input_ids based on the past_length.
1262
+ elif past_length < input_ids.shape[1]:
1263
+ input_ids = input_ids[:, past_length:]
1264
+ # 3 - Otherwise (past_length >= input_ids.shape[1]), let's assume input_ids only has unprocessed tokens.
1265
+
1266
+ # If we are about to go beyond the maximum cache length, we need to crop the input attention mask.
1267
+ if (
1268
+ max_cache_length is not None
1269
+ and attention_mask is not None
1270
+ and cache_length + input_ids.shape[1] > max_cache_length
1271
+ ):
1272
+ attention_mask = attention_mask[:, -max_cache_length:]
1273
+
1274
+ position_ids = kwargs.get("position_ids", None)
1275
+ if attention_mask is not None and position_ids is None:
1276
+ # create position_ids on the fly for batch generation
1277
+ position_ids = attention_mask.long().cumsum(-1) - 1
1278
+ position_ids.masked_fill_(attention_mask == 0, 1)
1279
+ if past_key_values:
1280
+ position_ids = position_ids[:, -input_ids.shape[1] :]
1281
+
1282
+ # if `inputs_embeds` are passed, we only want to use them in the 1st generation step
1283
+ if inputs_embeds is not None and past_key_values is None:
1284
+ model_inputs = {"inputs_embeds": inputs_embeds}
1285
+ else:
1286
+ model_inputs = {"input_ids": input_ids}
1287
+
1288
+ model_inputs.update(
1289
+ {
1290
+ "position_ids": position_ids,
1291
+ "past_key_values": past_key_values,
1292
+ "use_cache": kwargs.get("use_cache"),
1293
+ "attention_mask": attention_mask,
1294
+ }
1295
+ )
1296
+ return model_inputs
1297
+
1298
+ @staticmethod
1299
+ def _reorder_cache(past_key_values, beam_idx):
1300
+ reordered_past = ()
1301
+ for layer_past in past_key_values:
1302
+ reordered_past += (
1303
+ tuple(past_state.index_select(0, beam_idx.to(past_state.device)) for past_state in layer_past),
1304
+ )
1305
+ return reordered_past
1306
+
1307
+ @torch.inference_mode()
1308
+ def chat(self, tokenizer, query: str, history: List[Dict] = None, role: str = "user",
1309
+ max_length: int = 4096, num_beams=1, do_sample=True, top_p=0.8, temperature=0.3, logits_processor=None,
1310
+ **kwargs):
1311
+ if history is None:
1312
+ history = []
1313
+ if logits_processor:
1314
+ gen_kwargs = {"max_length": max_length, "num_beams": num_beams, "do_sample": do_sample, "top_p": top_p,
1315
+ "temperature": temperature, "logits_processor": logits_processor, **kwargs}
1316
+ else:
1317
+ gen_kwargs = {"max_length": max_length, "num_beams": num_beams, "do_sample": do_sample, "top_p": top_p,
1318
+ "temperature": temperature, "logits_processor": logits_processor, **kwargs}
1319
+
1320
+ history.append({"role": role, "content": query})
1321
+ history_str = tokenizer.apply_chat_template(history, tokenize=False, add_generation_prompt=False)
1322
+ inputs = tokenizer(history_str, return_tensors='pt').to(self.device)
1323
+ outputs = self.generate(**inputs, **gen_kwargs)
1324
+ outputs = outputs.tolist()[0][len(inputs["input_ids"][0]):-1]
1325
+ response = tokenizer.decode(outputs)
1326
+ pattern = re.compile(r".*?(?=<AI>|<用户>)", re.DOTALL)
1327
+ matches = pattern.findall(response)
1328
+ if len(matches) > 0:
1329
+ response = matches[0]
1330
+ history.append({"role": "assistant", "content": response})
1331
+ return response, history
1332
+
1333
+
1334
+ @add_start_docstrings(
1335
+ """
1336
+ The MiniCPM Model transformer with a sequence classification head on top (linear layer).
1337
+
1338
+ [`MiniCPMForSequenceClassification`] uses the last token in order to do the classification, as other causal models
1339
+ (e.g. GPT-2) do.
1340
+
1341
+ Since it does classification on the last token, it requires to know the position of the last token. If a
1342
+ `pad_token_id` is defined in the configuration, it finds the last token that is not a padding token in each row. If
1343
+ no `pad_token_id` is defined, it simply takes the last value in each row of the batch. Since it cannot guess the
1344
+ padding tokens when `inputs_embeds` are passed instead of `input_ids`, it does the same (take the last value in
1345
+ each row of the batch).
1346
+ """,
1347
+ MINICPM_START_DOCSTRING,
1348
+ )
1349
+ class MiniCPMForSequenceClassification(MiniCPMPreTrainedModel):
1350
+ def __init__(self, config):
1351
+ super().__init__(config)
1352
+ self.num_labels = config.num_labels
1353
+ self.model = MiniCPMModel(config)
1354
+ self.score = nn.Linear(config.hidden_size, self.num_labels, bias=False)
1355
+
1356
+ # Initialize weights and apply final processing
1357
+ self.post_init()
1358
+
1359
+ def get_input_embeddings(self):
1360
+ return self.model.embed_tokens
1361
+
1362
+ def set_input_embeddings(self, value):
1363
+ self.model.embed_tokens = value
1364
+
1365
+ @add_start_docstrings_to_model_forward(MINICPM_INPUTS_DOCSTRING)
1366
+ def forward(
1367
+ self,
1368
+ input_ids: torch.LongTensor = None,
1369
+ attention_mask: Optional[torch.Tensor] = None,
1370
+ position_ids: Optional[torch.LongTensor] = None,
1371
+ past_key_values: Optional[List[torch.FloatTensor]] = None,
1372
+ inputs_embeds: Optional[torch.FloatTensor] = None,
1373
+ labels: Optional[torch.LongTensor] = None,
1374
+ use_cache: Optional[bool] = None,
1375
+ output_attentions: Optional[bool] = None,
1376
+ output_hidden_states: Optional[bool] = None,
1377
+ return_dict: Optional[bool] = None,
1378
+ ) -> Union[Tuple, SequenceClassifierOutputWithPast]:
1379
+ r"""
1380
+ labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
1381
+ Labels for computing the sequence classification/regression loss. Indices should be in `[0, ...,
1382
+ config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
1383
+ `config.num_labels > 1` a classification loss is computed (Cross-Entropy).
1384
+ """
1385
+ return_dict = return_dict if return_dict is not None else self.config.use_return_dict
1386
+
1387
+ transformer_outputs = self.model(
1388
+ input_ids,
1389
+ attention_mask=attention_mask,
1390
+ position_ids=position_ids,
1391
+ past_key_values=past_key_values,
1392
+ inputs_embeds=inputs_embeds,
1393
+ use_cache=use_cache,
1394
+ output_attentions=output_attentions,
1395
+ output_hidden_states=output_hidden_states,
1396
+ return_dict=return_dict,
1397
+ )
1398
+ hidden_states = transformer_outputs[0]
1399
+ logits = self.score(hidden_states)
1400
+
1401
+ if input_ids is not None:
1402
+ batch_size = input_ids.shape[0]
1403
+ else:
1404
+ batch_size = inputs_embeds.shape[0]
1405
+
1406
+ if self.config.pad_token_id is None and batch_size != 1:
1407
+ raise ValueError("Cannot handle batch sizes > 1 if no padding token is defined.")
1408
+ if self.config.pad_token_id is None:
1409
+ sequence_lengths = -1
1410
+ else:
1411
+ if input_ids is not None:
1412
+ sequence_lengths = (torch.eq(input_ids, self.config.pad_token_id).int().argmax(-1) - 1).to(
1413
+ logits.device
1414
+ )
1415
+ else:
1416
+ sequence_lengths = -1
1417
+
1418
+ pooled_logits = logits[torch.arange(batch_size, device=logits.device), sequence_lengths]
1419
+
1420
+ loss = None
1421
+ if labels is not None:
1422
+ labels = labels.to(logits.device)
1423
+ if self.config.problem_type is None:
1424
+ if self.num_labels == 1:
1425
+ self.config.problem_type = "regression"
1426
+ elif self.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int):
1427
+ self.config.problem_type = "single_label_classification"
1428
+ else:
1429
+ self.config.problem_type = "multi_label_classification"
1430
+
1431
+ if self.config.problem_type == "regression":
1432
+ loss_fct = MSELoss()
1433
+ if self.num_labels == 1:
1434
+ loss = loss_fct(pooled_logits.squeeze(), labels.squeeze())
1435
+ else:
1436
+ loss = loss_fct(pooled_logits, labels)
1437
+ elif self.config.problem_type == "single_label_classification":
1438
+ loss_fct = CrossEntropyLoss()
1439
+ loss = loss_fct(pooled_logits.view(-1, self.num_labels), labels.view(-1))
1440
+ elif self.config.problem_type == "multi_label_classification":
1441
+ loss_fct = BCEWithLogitsLoss()
1442
+ loss = loss_fct(pooled_logits, labels)
1443
+ if not return_dict:
1444
+ output = (pooled_logits,) + transformer_outputs[1:]
1445
+ return ((loss,) + output) if loss is not None else output
1446
+
1447
+ return SequenceClassifierOutputWithPast(
1448
+ loss=loss,
1449
+ logits=pooled_logits,
1450
+ past_key_values=transformer_outputs.past_key_values,
1451
+ hidden_states=transformer_outputs.hidden_states,
1452
+ attentions=transformer_outputs.attentions,
1453
+ )
special_tokens_map.json ADDED
@@ -0,0 +1,23 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ {
2
+ "bos_token": {
3
+ "content": "<s>",
4
+ "lstrip": false,
5
+ "normalized": false,
6
+ "rstrip": false,
7
+ "single_word": false
8
+ },
9
+ "eos_token": {
10
+ "content": "</s>",
11
+ "lstrip": false,
12
+ "normalized": false,
13
+ "rstrip": false,
14
+ "single_word": false
15
+ },
16
+ "unk_token": {
17
+ "content": "<unk>",
18
+ "lstrip": false,
19
+ "normalized": false,
20
+ "rstrip": false,
21
+ "single_word": false
22
+ }
23
+ }
tokenizer.json ADDED
The diff for this file is too large to render. See raw diff
 
tokenizer.model ADDED
@@ -0,0 +1,3 @@
 
 
 
 
1
+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:c9aafcd7da1f5611dab6be545db74d5552a2ccc9c2a12c72ea7be63aac4a25d7
3
+ size 1994871
tokenizer_config.json ADDED
@@ -0,0 +1,42 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ {
2
+ "add_bos_token": true,
3
+ "add_eos_token": false,
4
+ "added_tokens_decoder": {
5
+ "0": {
6
+ "content": "<unk>",
7
+ "lstrip": false,
8
+ "normalized": false,
9
+ "rstrip": false,
10
+ "single_word": false,
11
+ "special": true
12
+ },
13
+ "1": {
14
+ "content": "<s>",
15
+ "lstrip": false,
16
+ "normalized": false,
17
+ "rstrip": false,
18
+ "single_word": false,
19
+ "special": true
20
+ },
21
+ "2": {
22
+ "content": "</s>",
23
+ "lstrip": false,
24
+ "normalized": false,
25
+ "rstrip": false,
26
+ "single_word": false,
27
+ "special": true
28
+ }
29
+ },
30
+ "bos_token": "<s>",
31
+ "clean_up_tokenization_spaces": false,
32
+ "eos_token": "</s>",
33
+ "legacy": true,
34
+ "model_max_length": 1000000000000000019884624838656,
35
+ "pad_token": null,
36
+ "sp_model_kwargs": {},
37
+ "spaces_between_special_tokens": false,
38
+ "tokenizer_class": "LlamaTokenizer",
39
+ "unk_token": "<unk>",
40
+ "use_default_system_prompt": false,
41
+ "chat_template": "{% for message in messages %}{% if message['role'] == 'user' %}{{'<用户>' + message['content'].strip() + '<AI>'}}{% else %}{{message['content'].strip()}}{% endif %}{% endfor %}"
42
+ }