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  1. LICENSE +201 -0
  2. MODEL_LICENSE +31 -0
  3. README.md +30 -0
  4. added_tokens.json +10 -0
  5. config.json +35 -0
  6. configuration_glm.py +138 -0
  7. merges.txt +0 -0
  8. modeling_glm.py +975 -0
  9. pytorch_model.bin +3 -0
  10. tokenization_glm.py +362 -0
  11. tokenizer_config.json +18 -0
  12. vocab.json +0 -0
LICENSE ADDED
@@ -0,0 +1,201 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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MODEL_LICENSE ADDED
@@ -0,0 +1,31 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ 1. Definitions
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+
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+ “Licensor” means the WebGLM Team that distributes its Software.
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+
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+ “Software” means the WebGLM model parameters and data made available under this license.
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+
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+ 2. License Grant
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+
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+ Subject to the terms and conditions of this License, the Licensor hereby grants to you a non-exclusive, worldwide, non-transferable, non-sublicensable, revocable, royalty-free copyright license to use the Software solely for your non-commercial research purposes.
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+
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+ The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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+
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+ 3. Restriction
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+ You will not use, copy, modify, merge, publish, distribute, reproduce, or create derivative works of the Software, in whole or in part, for any commercial, military, or illegal purposes.
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+ You will not use the Software for any act that may undermine China's national security and national unity, harm the public interest of society, or infringe upon the rights and interests of human beings.
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+ 4. Disclaimer
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+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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+ 6. Dispute Resolution
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+ This license shall be governed and construed in accordance with the laws of People’s Republic of China. Any dispute arising from or in connection with this License shall be submitted to Haidian District People's Court in Beijing.
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+ Note that the license is subject to update to a more comprehensive version.
README.md ADDED
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1
+ ---
2
+ language:
3
+ - en
4
+ tags:
5
+ - glm
6
+ - webglm
7
+ - thudm
8
+ ---
9
+
10
+ <h1>WebGLM: Towards An Efficient Web-enhanced Question Answering System with Human Preference</h1>
11
+
12
+ <p align="center">
13
+ 📃 <a href="https://arxiv.org/pdf/2306.07906.pdf" target="_blank">Paper (KDD 2023)</a>
14
+ |
15
+ 💻 <a href="https://github.com/THUDM/WebGLM" target="_blank">Github Repo</a>
16
+ </p>
17
+
18
+ # Introduction
19
+
20
+ WebGLM-2B aspires to provide an efficient and cost-effective web-enhanced question-answering system using the 2-billion-parameter General Language Model (GLM). It aims to improve real-world application deployment by integrating web search and retrieval capabilities into the pre-trained language model.
21
+
22
+ WebGLM is built by the following parts:
23
+
24
+ - **LLM-augmented Retriever**: Enhances the retrieval of relevant web content to better aid in answering questions accurately.
25
+ - **Bootstrapped Generator**: Generates human-like responses to questions, leveraging the power of the GLM to provide refined answers.
26
+ - **Human Preference-aware Scorer**: Estimates the quality of generated responses by prioritizing human preferences, ensuring the system produces useful and engaging content.
27
+
28
+ This repo is the implementation of **Bootstrap Generator**.
29
+
30
+ See our [Github Repo](https://github.com/THUDM/WebGLM) for more detailed usage.
added_tokens.json ADDED
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1
+ {
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+ "<|startofpiece|>": 50257,
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+ "<|endofpiece|>": 50258,
4
+ "[CLS]": 50259,
5
+ "[MASK]": 50260,
6
+ "[SEP]": 50261,
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+ "[UNUSED]": 50262,
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+ "[gMASK]": 50263,
9
+ "[sMASK]": 50264
10
+ }
config.json ADDED
@@ -0,0 +1,35 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ {
2
+ "_name_or_path": "THUDM/glm-2b",
3
+ "architectures": [
4
+ "GLMModel"
5
+ ],
6
+ "attention_dropout_prob": 0.1,
7
+ "attention_scale": 1.0,
8
+ "auto_map": {
9
+ "AutoConfig": "configuration_glm.GLMConfig",
10
+ "AutoModel": "modeling_glm.GLMModel",
11
+ "AutoModelForSeq2SeqLM": "modeling_glm.GLMForConditionalGeneration",
12
+ "AutoModelForMultipleChoice": "modeling_glm.GLMForMultipleChoice",
13
+ "AutoModelForSequenceClassification": "modeling_glm.GLMForSequenceClassification"
14
+ },
15
+ "block_position_encoding": true,
16
+ "checkpoint_activations": false,
17
+ "checkpoint_num_layers": 1,
18
+ "embedding_dropout_prob": 0.1,
19
+ "hidden_size": 2048,
20
+ "initializer_range": 0.02,
21
+ "max_sequence_length": 1024,
22
+ "model_type": "glm",
23
+ "num_attention_heads": 32,
24
+ "num_layers": 36,
25
+ "output_dropout_prob": 0.1,
26
+ "output_predict": true,
27
+ "parallel_output": true,
28
+ "pool_token": "cls",
29
+ "relative_encoding": false,
30
+ "spell_func": "lstm",
31
+ "spell_length": null,
32
+ "torch_dtype": "float32",
33
+ "transformers_version": "4.23.1",
34
+ "vocab_size": 50304
35
+ }
configuration_glm.py ADDED
@@ -0,0 +1,138 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 shunxing1234 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
+ """ GLM model configuration """
16
+
17
+ from transformers.configuration_utils import PretrainedConfig
18
+ from transformers.utils import logging
19
+
20
+ logger = logging.get_logger(__name__)
21
+
22
+ GLM_PRETRAINED_CONFIG_ARCHIVE_MAP = {
23
+ "shunxing1234/GLM": "https://huggingface.co/shunxing1234/GLM/resolve/main/config.json",
24
+ # See all GLM models at https://huggingface.co/models?filter=glm
25
+ }
26
+
27
+
28
+ class GLMConfig(PretrainedConfig):
29
+ r"""
30
+ This is the configuration class to store the configuration of a [`~GLMModel`].
31
+ It is used to instantiate an GLM model according to the specified arguments, defining the model
32
+ architecture. Instantiating a configuration with the defaults will yield a similar configuration to that of
33
+ the GLM [shunxing1234/GLM-base-cased](https://huggingface.co/shunxing1234/GLM-base-cased) architecture.
34
+
35
+ Configuration objects inherit from [`PretrainedConfig`] and can be used
36
+ to control the model outputs. Read the documentation from [`PretrainedConfig`]
37
+ for more information.
38
+
39
+
40
+ Args:
41
+ vocab_size (`int`, *optional*, defaults to 30522):
42
+ Vocabulary size of the GLM model. Defines the number of different tokens that can be represented by the
43
+ `inputs_ids` passed when calling [`~GLMModel`] or
44
+ [`~TFGLMModel`].
45
+ hidden_size (`int`, *optional*, defaults to 768):
46
+ Dimension of the encoder layers and the pooler layer.
47
+ num_hidden_layers (`int`, *optional*, defaults to 12):
48
+ Number of hidden layers in the Transformer encoder.
49
+ num_attention_heads (`int`, *optional*, defaults to 12):
50
+ Number of attention heads for each attention layer in the Transformer encoder.
51
+ intermediate_size (`int`, *optional*, defaults to 3072):
52
+ Dimension of the "intermediate" (i.e., feed-forward) layer in the Transformer encoder.
53
+ hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`):
54
+ The non-linear activation function (function or string) in the encoder and pooler.
55
+ If string, `"gelu"`, `"relu"`, `"selu"` and `"gelu_new"` are supported.
56
+ hidden_dropout_prob (`float`, *optional*, defaults to 0.1):
57
+ The dropout probabilitiy for all fully connected layers in the embeddings, encoder, and pooler.
58
+ attention_probs_dropout_prob (`float`, *optional*, defaults to 0.1):
59
+ The dropout ratio for the attention probabilities.
60
+ max_position_embeddings (`int`, *optional*, defaults to 512):
61
+ The maximum sequence length that this model might ever be used with.
62
+ Typically set this to something large just in case (e.g., 512 or 1024 or 2048).
63
+ type_vocab_size (`int`, *optional*, defaults to 2):
64
+ The vocabulary size of the `token_type_ids` passed when calling [`~GLMModel`] or
65
+ [`~TFGLMModel`].
66
+ initializer_range (`float`, *optional*, defaults to 0.02):
67
+ The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
68
+ layer_norm_eps (`float`, *optional*, defaults to 1e-12):
69
+ The epsilon used by the layer 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
+ Example:
74
+
75
+ ```python
76
+ >>> from transformers import GLMModel, GLMConfig
77
+
78
+ >>> # Initializing a GLM shunxing1234/GLM-base-cased style configuration
79
+ >>> configuration = GLMConfig()
80
+
81
+ >>> # Initializing a model from the shunxing1234/GLM-base-cased style configuration
82
+ >>> model = GLMModel(configuration)
83
+
84
+ >>> # Accessing the model configuration
85
+ >>> configuration = model.config
86
+ ```
87
+ """
88
+ model_type = "glm"
89
+ attribute_map = {
90
+ "num_hidden_layers": "num_layers"
91
+ }
92
+
93
+ def __init__(
94
+ self,
95
+ num_layers=24,
96
+ vocab_size=30592,
97
+ hidden_size=1024,
98
+ num_attention_heads=16,
99
+ embedding_dropout_prob=0.1,
100
+ attention_dropout_prob=0.1,
101
+ output_dropout_prob=0.1,
102
+ max_sequence_length=512,
103
+ checkpoint_activations=False,
104
+ checkpoint_num_layers=1,
105
+ parallel_output=True,
106
+ relative_encoding=False,
107
+ block_position_encoding=True,
108
+ output_predict=False,
109
+ spell_length=None,
110
+ spell_func="lstm",
111
+ attention_scale=1.0,
112
+ initializer_range=0.02,
113
+ pool_token="cls",
114
+ classifier_dropout=None,
115
+ **kwargs
116
+ ):
117
+ self.num_layers = num_layers
118
+ self.vocab_size = vocab_size
119
+ self.hidden_size = hidden_size
120
+ self.num_attention_heads = num_attention_heads
121
+ self.embedding_dropout_prob = embedding_dropout_prob
122
+ self.attention_dropout_prob = attention_dropout_prob
123
+ self.output_dropout_prob = output_dropout_prob
124
+ self.max_sequence_length = max_sequence_length
125
+ self.checkpoint_activations = checkpoint_activations
126
+ self.checkpoint_num_layers = checkpoint_num_layers
127
+ self.parallel_output = parallel_output
128
+ self.relative_encoding = relative_encoding
129
+ self.block_position_encoding = block_position_encoding
130
+ self.output_predict = output_predict
131
+ self.spell_length = spell_length
132
+ self.spell_func = spell_func
133
+ self.attention_scale = attention_scale
134
+ self.initializer_range = initializer_range
135
+ self.pool_token = pool_token
136
+ self.classifier_dropout = classifier_dropout
137
+
138
+ super().__init__(**kwargs)
merges.txt ADDED
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modeling_glm.py ADDED
@@ -0,0 +1,975 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ # coding=utf-8
2
+ # Copyright 2022 shunxing1234 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
+ """ PyTorch GLM model. """
16
+
17
+ import math
18
+
19
+ import torch
20
+ import torch.utils.checkpoint
21
+ import torch.nn.functional as F
22
+ from torch.nn import init, LayerNorm, Linear, CrossEntropyLoss
23
+
24
+ from transformers.activations import gelu
25
+ from transformers.utils import (
26
+ add_code_sample_docstrings,
27
+ add_start_docstrings,
28
+ add_start_docstrings_to_model_forward,
29
+ )
30
+ from transformers.modeling_outputs import (
31
+ BaseModelOutputWithPastAndCrossAttentions,
32
+ ModelOutput,
33
+ SequenceClassifierOutput,
34
+ )
35
+
36
+ from transformers.modeling_utils import (
37
+ PreTrainedModel,
38
+ )
39
+ from .configuration_glm import GLMConfig
40
+ from torch.nn.parameter import Parameter
41
+
42
+ _CHECKPOINT_FOR_DOC = "shunxing1234/GLM"
43
+ _CONFIG_FOR_DOC = "GLMConfig"
44
+ _TOKENIZER_FOR_DOC = "GLMTokenizer"
45
+
46
+ GLM_PRETRAINED_MODEL_ARCHIVE_LIST = [
47
+ "shunxing1234/GLM",
48
+ # See all GLM models at https://huggingface.co/models?filter=glm
49
+ ]
50
+
51
+
52
+ def unscaled_init_method(sigma):
53
+ """Init method based on N(0, sigma)."""
54
+
55
+ def init_(tensor):
56
+ return torch.nn.init.normal_(tensor, mean=0.0, std=sigma)
57
+
58
+ return init_
59
+
60
+
61
+ def scaled_init_method(mean, std, num_layers):
62
+ """Init method based on N(0, sigma/sqrt(2*num_layers)."""
63
+ std = std / math.sqrt(2.0 * num_layers)
64
+
65
+ def init_(tensor):
66
+ return torch.nn.init.normal_(tensor, mean=mean, std=std)
67
+
68
+ return init_
69
+
70
+
71
+ def ensure_divisibility(numerator, denominator):
72
+ """Ensure that numerator is divisible by the denominator."""
73
+ assert numerator % denominator == 0, '{} is not divisible by {}'.format(
74
+ numerator, denominator)
75
+
76
+
77
+ def divide(numerator, denominator):
78
+ """Ensure that numerator is divisible by the denominator and return
79
+ the division value."""
80
+ ensure_divisibility(numerator, denominator)
81
+ return numerator // denominator
82
+
83
+
84
+ def split_tensor_along_last_dim(tensor, num_partitions,
85
+ contiguous_split_chunks=False):
86
+ """Split a tensor along its last dimension.
87
+ Arguments:
88
+ tensor: input tensor.
89
+ num_partitions: number of partitions to split the tensor
90
+ contiguous_split_chunks: If True, make each chunk contiguous
91
+ in memory.
92
+ """
93
+ # Get the size and dimension.
94
+ last_dim = tensor.dim() - 1
95
+ last_dim_size = divide(tensor.size()[last_dim], num_partitions)
96
+ # Split.
97
+ tensor_list = torch.split(tensor, last_dim_size, dim=last_dim)
98
+ # Note: torch.split does not create contiguous tensors by default.
99
+ if contiguous_split_chunks:
100
+ return tuple(chunk.contiguous() for chunk in tensor_list)
101
+
102
+ return tensor_list
103
+
104
+
105
+ class MLP(torch.nn.Module):
106
+ """MLP for GPT2.
107
+
108
+ MLP will take the input with h hidden state, project it to 4*h
109
+ hidden dimension, perform gelu transformation, and project the
110
+ state back into h hidden dimension. At the end, dropout is also
111
+ applied.
112
+
113
+ Arguments:
114
+ hidden_size: The hidden size of the self attention.
115
+ output_dropout_prob: dropout probability for the outputs
116
+ after self attention and final output.
117
+ init_method: initialization method used for the weights. Note
118
+ that all biases are initialized to zero and
119
+ layernorm weight are initialized to one.
120
+ output_layer_init_method: output layer initialization. If None,
121
+ use `init_method`.
122
+ """
123
+
124
+ def __init__(self, hidden_size, output_dropout_prob, init_method,
125
+ output_layer_init_method=None):
126
+ super(MLP, self).__init__()
127
+ # Set output layer initialization if not provided.
128
+ if output_layer_init_method is None:
129
+ output_layer_init_method = init_method
130
+ # Project to 4h.
131
+ self.dense_h_to_4h = Linear(hidden_size, 4 * hidden_size)
132
+
133
+ # Project back to h.
134
+ self.dense_4h_to_h = Linear(
135
+ 4 * hidden_size,
136
+ hidden_size)
137
+
138
+ self.dropout = torch.nn.Dropout(output_dropout_prob)
139
+
140
+ def forward(self, hidden_states):
141
+ # [b, s, 4hp]
142
+ intermediate_parallel = self.dense_h_to_4h(hidden_states)
143
+ intermediate_parallel = gelu(intermediate_parallel)
144
+
145
+ # [b, s, h]
146
+ output = self.dense_4h_to_h(intermediate_parallel)
147
+ output = self.dropout(output)
148
+ return output
149
+
150
+
151
+ class VocabEmbedding(torch.nn.Module):
152
+ """Embedding parallelized in the vocabulary dimension.
153
+
154
+ This is mainly adapted from torch.nn.Embedding and all the default
155
+ values are kept.
156
+ Arguments:
157
+ num_embeddings: vocabulary size.
158
+ embedding_dim: size of hidden state.
159
+ init_method: method to initialize weights.
160
+ """
161
+
162
+ def __init__(self, config):
163
+ super(VocabEmbedding, self).__init__()
164
+ # Keep the input dimensions.
165
+ self.num_embeddings = config.vocab_size
166
+ self.embedding_dim = config.hidden_size
167
+ # Set the detauls for compatibility.
168
+ self.padding_idx = None
169
+ self.max_norm = None
170
+ self.norm_type = 2.
171
+ self.scale_grad_by_freq = False
172
+ self.sparse = False
173
+ self._weight = None
174
+
175
+ self.vocab_start_index = 0
176
+ self.vocab_end_index = self.num_embeddings
177
+
178
+ # Allocate weights.
179
+ self.weight = Parameter(torch.Tensor(self.num_embeddings,
180
+ self.embedding_dim))
181
+ # And initialize.
182
+ init.xavier_normal_(self.weight)
183
+
184
+ def forward(self, input_):
185
+ # Get the embeddings.
186
+ output = F.embedding(input_, self.weight,
187
+ self.padding_idx, self.max_norm,
188
+ self.norm_type, self.scale_grad_by_freq,
189
+ self.sparse)
190
+ return output
191
+
192
+
193
+ class PositionalEmbedding(torch.nn.Module):
194
+
195
+ def __init__(self, hidden_size):
196
+ super(PositionalEmbedding, self).__init__()
197
+
198
+ self.hidden_size = hidden_size
199
+
200
+ inv_freq = 1 / (10000 ** (torch.arange(0.0, hidden_size, 2.0) / hidden_size))
201
+ self.register_buffer('inv_freq', inv_freq)
202
+
203
+ def forward(self, pos_seq, bsz=None):
204
+ sinusoid_inp = torch.ger(pos_seq, self.inv_freq)
205
+ pos_emb = torch.cat([sinusoid_inp.sin(), sinusoid_inp.cos()], dim=-1)
206
+
207
+ if bsz is not None:
208
+ return pos_emb[None, :, :].expand(bsz, -1, -1)
209
+ else:
210
+ return pos_emb[None, :, :]
211
+
212
+
213
+ class SelfAttention(torch.nn.Module):
214
+ """self-attention layer for GLM.
215
+
216
+ Self-attention layer takes input with size [b, s, h] where b is
217
+ the batch size, s is the sequence lenght, and h is the hidden size
218
+ and creates output of the same size.
219
+ Arguments:
220
+ hidden_size: total hidden size of the layer (h).
221
+ num_attention_heads: number of attention heads (n). Note that we
222
+ require n to be divisible by number of GPUs
223
+ used to parallelize the model. Also, we
224
+ require hidden size to be divisible by n.
225
+ attention_dropout_prob: dropout probability for the attention scores.
226
+ init_method: weight initialization.
227
+ output_layer_init_method: output layer initialization. If None, use
228
+ `init_method`.
229
+ We use the following notation:
230
+ h: hidden_size
231
+ n: num_attention_heads
232
+ p: number of partitions
233
+ np: n/p
234
+ hp: h/p
235
+ hn: h/n
236
+ b: batch size
237
+ s: sequence length
238
+ """
239
+
240
+ def __init__(self, hidden_size, num_attention_heads,
241
+ attention_dropout_prob, output_dropout_prob,
242
+ init_method, output_layer_init_method=None,
243
+ attention_scale=1.0):
244
+ super(SelfAttention, self).__init__()
245
+ # Set output layer initialization if not provided.
246
+ if output_layer_init_method is None:
247
+ output_layer_init_method = init_method
248
+ # Per attention head and per partition values.
249
+ self.hidden_size = hidden_size
250
+ self.hidden_size_per_attention_head = divide(hidden_size,
251
+ num_attention_heads)
252
+
253
+ self.num_attention_heads = num_attention_heads
254
+ self.attention_scale = attention_scale
255
+ # Strided linear layer.
256
+ self.query_key_value = Linear(hidden_size, 3 * hidden_size)
257
+
258
+ # Dropout. Note that for a single iteration, this layer will generate
259
+ # different outputs on different number of parallel partitions but
260
+ # on average it should not be partition dependent.
261
+ self.attention_dropout = torch.nn.Dropout(attention_dropout_prob)
262
+
263
+ # Output.
264
+ self.dense = Linear(hidden_size,
265
+ hidden_size)
266
+ self.output_dropout = torch.nn.Dropout(output_dropout_prob)
267
+
268
+ def _transpose_for_scores(self, tensor):
269
+ """Transpose a 3D tensor [b, s, np*hn] into a 4D tensor with
270
+ size [b, np, s, hn].
271
+ """
272
+ new_tensor_shape = tensor.size()[:-1] + \
273
+ (self.num_attention_heads,
274
+ self.hidden_size_per_attention_head)
275
+ tensor = tensor.view(*new_tensor_shape)
276
+ return tensor.permute(0, 2, 1, 3)
277
+
278
+ def forward(self, hidden_states, ltor_mask, mem=None):
279
+ # hidden_states: [b, s, h]
280
+ # ltor_mask: [b,1,s,s]
281
+
282
+ # Attention heads. [b, s, hp]
283
+ query_length = hidden_states.size(1)
284
+ # self attention
285
+ if mem is None:
286
+ mixed_x_layer = self.query_key_value(hidden_states)
287
+ (mixed_query_layer,
288
+ mixed_key_layer,
289
+ mixed_value_layer) = split_tensor_along_last_dim(mixed_x_layer, 3)
290
+ else:
291
+ cat = torch.cat((mem, hidden_states), 1)
292
+ mixed_x_layer = self.query_key_value(cat)
293
+ (mixed_query_layer,
294
+ mixed_key_layer,
295
+ mixed_value_layer) = split_tensor_along_last_dim(mixed_x_layer, 3)
296
+ mixed_query_layer = mixed_query_layer[:, -query_length:]
297
+
298
+ # Reshape and transpose [b, np, s, hn]
299
+ query_layer = self._transpose_for_scores(mixed_query_layer)
300
+ key_layer = self._transpose_for_scores(mixed_key_layer)
301
+ value_layer = self._transpose_for_scores(mixed_value_layer)
302
+
303
+ if self.attention_scale > 1.0:
304
+ # Raw attention scores. [b, np, s, s]
305
+ attention_scores = torch.matmul(query_layer / math.sqrt(self.attention_scale),
306
+ key_layer.transpose(-1, -2) / math.sqrt(
307
+ self.hidden_size_per_attention_head * self.attention_scale))
308
+ else:
309
+ attention_scores = torch.matmul(query_layer, key_layer.transpose(-1, -2) / math.sqrt(
310
+ self.hidden_size_per_attention_head))
311
+
312
+ # Apply the left to right attention mask.
313
+ ltor_mask = ltor_mask.type_as(attention_scores)
314
+ attention_scores = torch.mul(attention_scores, ltor_mask)
315
+ if self.attention_scale > 1.0:
316
+ max_attention_scores = attention_scores.max(dim=-1, keepdim=True)[0]
317
+ attention_scores -= max_attention_scores
318
+ attention_scores *= self.attention_scale
319
+
320
+ attention_scores = attention_scores + (-65504.0) * (1.0 - ltor_mask)
321
+ # Attention probabilities. [b, np, s, s]
322
+ attention_probs = torch.nn.Softmax(dim=-1)(attention_scores)
323
+ # This is actually dropping out entire tokens to attend to, which might
324
+ # seem a bit unusual, but is taken from the original Transformer paper.
325
+ # with get_cuda_rng_tracker().fork():
326
+ attention_probs = self.attention_dropout(attention_probs)
327
+
328
+ # Context layer.
329
+ # [b, np, s, hn]
330
+ context_layer = torch.matmul(attention_probs, value_layer)
331
+ # [b, s, np, hn]
332
+ context_layer = context_layer.permute(0, 2, 1, 3).contiguous()
333
+ new_context_layer_shape = context_layer.size()[:-2] + \
334
+ (self.hidden_size,)
335
+ # [b, s, hp]
336
+ context_layer = context_layer.view(*new_context_layer_shape)
337
+
338
+ # Output. [b, s, h]
339
+ output = self.dense(context_layer)
340
+ output = self.output_dropout(output)
341
+
342
+ return output
343
+
344
+
345
+ class GLMBlock(torch.nn.Module):
346
+ """A single layer transformer for GLM.
347
+
348
+ We use the following notation:
349
+ h: hidden size
350
+ n: number of attention heads
351
+ b: batch size
352
+ s: sequence length
353
+ Transformore layer takes input with size [b, s, h] and returns an
354
+ output of the same size.
355
+
356
+ Arguments:
357
+ hidden_size: The hidden size of the self attention.
358
+ num_attention_heads: number of attention head in the self
359
+ attention.
360
+ attention_dropout_prob: dropout probability of the attention
361
+ score in self attention.
362
+ output_dropout_prob: dropout probability for the outputs
363
+ after self attention and final output.
364
+ layernorm_epsilon: epsilon used in layernorm to avoid
365
+ division by zero.
366
+ init_method: initialization method used for the weights. Note
367
+ that all biases are initialized to zero and
368
+ layernorm weight are initialized to one.
369
+ output_layer_init_method: output layers (attention output and
370
+ mlp output) initialization. If None,
371
+ use `init_method`.
372
+ """
373
+
374
+ def __init__(self,
375
+ hidden_size,
376
+ num_attention_heads,
377
+ attention_dropout_prob,
378
+ output_dropout_prob,
379
+ layernorm_epsilon,
380
+ init_method,
381
+ output_layer_init_method=None,
382
+ attention_scale=1.0):
383
+ super(GLMBlock, self).__init__()
384
+ # Set output layer initialization if not provided.
385
+ if output_layer_init_method is None:
386
+ output_layer_init_method = init_method
387
+
388
+ # Layernorm on the input data.
389
+ self.input_layernorm = LayerNorm(hidden_size, eps=layernorm_epsilon)
390
+
391
+ # Self attention.
392
+ self.attention = SelfAttention(
393
+ hidden_size,
394
+ num_attention_heads,
395
+ attention_dropout_prob,
396
+ output_dropout_prob,
397
+ init_method,
398
+ output_layer_init_method=output_layer_init_method,
399
+ attention_scale=attention_scale)
400
+
401
+ # Layernorm on the input data.
402
+ self.post_attention_layernorm = LayerNorm(hidden_size,
403
+ eps=layernorm_epsilon)
404
+
405
+ # MLP
406
+ self.mlp = MLP(
407
+ hidden_size,
408
+ output_dropout_prob,
409
+ init_method,
410
+ output_layer_init_method=output_layer_init_method)
411
+
412
+ def forward(self, hidden_states, ltor_mask, mem=None):
413
+ # hidden_states: [b, s, h]
414
+ # ltor_mask: [b,1, s,s]
415
+
416
+ # Layer norm at the begining of the transformer layer.
417
+ layernorm_output = self.input_layernorm(hidden_states)
418
+ mem = self.input_layernorm(mem) if mem is not None else None
419
+ # Self attention.
420
+ attention_output = self.attention(layernorm_output, ltor_mask, mem)
421
+ # Residual connection.
422
+ layernorm_input = hidden_states + attention_output
423
+ # Layer norm post the self attention.
424
+ layernorm_output = self.post_attention_layernorm(layernorm_input)
425
+ # MLP.
426
+ mlp_output = self.mlp(layernorm_output)
427
+ # Second residual connection.
428
+ output = layernorm_input + mlp_output
429
+
430
+ return output
431
+
432
+
433
+ class GLMStack(torch.nn.Module):
434
+ """GLM transformer.
435
+
436
+ This module takes input from embedding layer and it's output can
437
+ be used directly by a logit layer. It consists of L (num-layers)
438
+ blocks of:
439
+ layer norm
440
+ self attention
441
+ residual connection
442
+ layer norm
443
+ mlp
444
+ residual connection
445
+ followed by a final layer norm.
446
+
447
+ Arguments:
448
+ num_layers: Number of transformer layers.
449
+ hidden_size: The hidden size of the self attention.
450
+ num_attention_heads: number of attention head in the self
451
+ attention.
452
+ attention_dropout_prob: dropout probability of the attention
453
+ score in self attention.
454
+ output_dropout_prob: dropout probability for the outputs
455
+ after self attention and final output.
456
+ checkpoint_activations: if True, checkpoint activations.
457
+ checkpoint_num_layers: number of layers to checkpoint. This
458
+ is basically the chunk size in checkpoitning.
459
+ layernorm_epsilon: epsilon used in layernorm to avoid
460
+ division by zero.
461
+ init_method_std: standard deviation of the init method which has
462
+ the form N(0, std).
463
+ use_scaled_init_for_output_weights: If Ture use 1/sqrt(2*num_layers)
464
+ scaling for the output weights (
465
+ output of self attention and mlp).
466
+ """
467
+
468
+ def __init__(self,
469
+ num_layers,
470
+ hidden_size,
471
+ num_attention_heads,
472
+ max_sequence_length,
473
+ embedding_dropout_prob,
474
+ attention_dropout_prob,
475
+ output_dropout_prob,
476
+ checkpoint_activations,
477
+ checkpoint_num_layers=1,
478
+ layernorm_epsilon=1.0e-5,
479
+ init_method_std=0.02,
480
+ use_scaled_init_for_output_weights=True,
481
+ block_position_encoding=False,
482
+ attention_scale=1.0,
483
+ ):
484
+ super(GLMStack, self).__init__()
485
+ self.hidden_size = hidden_size
486
+ # Store activation checkpoiting flag.
487
+ self.checkpoint_activations = checkpoint_activations
488
+ self.checkpoint_num_layers = checkpoint_num_layers
489
+
490
+ output_layer_init_method = None
491
+ if use_scaled_init_for_output_weights:
492
+ output_layer_init_method = scaled_init_method(0.0, init_method_std,
493
+ num_layers)
494
+ # Embeddings dropout
495
+ self.embedding_dropout = torch.nn.Dropout(embedding_dropout_prob)
496
+ self.block_position_encoding = block_position_encoding
497
+
498
+ # Position embedding (serial).
499
+ if block_position_encoding:
500
+ self.position_embeddings = torch.nn.Embedding(max_sequence_length + 1, hidden_size)
501
+ self.block_position_embeddings = torch.nn.Embedding(max_sequence_length + 1, hidden_size)
502
+ torch.nn.init.normal_(self.block_position_embeddings.weight, mean=0.0, std=init_method_std)
503
+ else:
504
+ self.position_embeddings = torch.nn.Embedding(max_sequence_length, hidden_size)
505
+ # Initialize the position embeddings.
506
+ torch.nn.init.normal_(self.position_embeddings.weight, mean=0.0, std=init_method_std)
507
+
508
+ def get_layer():
509
+
510
+ return GLMBlock(
511
+ hidden_size,
512
+ num_attention_heads,
513
+ attention_dropout_prob,
514
+ output_dropout_prob,
515
+ layernorm_epsilon,
516
+ unscaled_init_method(init_method_std),
517
+ output_layer_init_method=output_layer_init_method,
518
+ attention_scale=attention_scale)
519
+
520
+ # Transformer layers.
521
+ self.layers = torch.nn.ModuleList(
522
+ [get_layer() for _ in range(num_layers)])
523
+
524
+ # Final layer norm before output.
525
+ self.final_layernorm = LayerNorm(hidden_size, eps=layernorm_epsilon)
526
+
527
+ def forward(self, hidden_states, position_ids, attention_mask, memory_states=None):
528
+
529
+ batch_size, query_length = hidden_states.size()[:2]
530
+ memory_length = memory_states[0].size(1) if memory_states else 0
531
+ # attention mask is the beginning postion of B region, \in [0, query_len)
532
+ is_scalar = torch.numel(attention_mask) == 1
533
+ is_sep = is_scalar or torch.numel(attention_mask) == batch_size
534
+ if is_sep:
535
+ sep = attention_mask.item() if is_scalar else attention_mask
536
+
537
+ # conventional transformer
538
+ def build_mask_matrix(seq_length, sep, memory_length=0):
539
+ m = hidden_states.new_ones((1, seq_length, seq_length))
540
+ m = torch.tril(m)
541
+ if is_scalar:
542
+ m[0, :, :int(sep)] = 1
543
+ else:
544
+ m = m.expand(batch_size, -1, -1)
545
+ ids = torch.arange(seq_length, device=sep.device, dtype=sep.dtype).view(1, -1)
546
+ mask = ids < sep.view(-1, 1)
547
+ m = m.masked_fill(mask.unsqueeze(1).expand_as(m), 1)
548
+ if memory_length > 0:
549
+ m = m.expand(batch_size, -1, -1)
550
+ m = torch.cat((hidden_states.new_ones((batch_size, seq_length, memory_length)), m), dim=2)
551
+ m = m.unsqueeze(1)
552
+ return m
553
+
554
+ attention_mask = build_mask_matrix(query_length, sep, memory_length=memory_length)
555
+ else:
556
+ if attention_mask.dim() == 2:
557
+ attention_mask = attention_mask.unsqueeze(1).unsqueeze(1)
558
+ attention_mask = attention_mask[:, :, :, -query_length - memory_length:]
559
+
560
+ if self.block_position_encoding:
561
+ position_ids, block_position_ids = position_ids[:, 0], position_ids[:, 1]
562
+ position_embeddings = self.position_embeddings(position_ids)
563
+
564
+ hidden_states = hidden_states + position_embeddings
565
+ if self.block_position_encoding:
566
+ block_position_embeddings = self.block_position_embeddings(block_position_ids)
567
+ hidden_states = hidden_states + block_position_embeddings
568
+ hidden_states = self.embedding_dropout(hidden_states)
569
+
570
+ def check_detach(_hidden_states):
571
+ return _hidden_states.detach()
572
+
573
+ mem_layers = [check_detach(hidden_states)]
574
+
575
+ for i, layer in enumerate(self.layers):
576
+
577
+ args = [hidden_states, attention_mask]
578
+
579
+ def create_custom_forward(module):
580
+ def custom_forward(*inputs):
581
+ # None for past_key_value
582
+ return module(*inputs)
583
+
584
+ return custom_forward
585
+
586
+ mem_i = memory_states[i] if memory_states else None
587
+
588
+ if self.checkpoint_activations:
589
+ hidden_states = torch.utils.checkpoint.checkpoint(
590
+ create_custom_forward(layer),
591
+ hidden_states,
592
+ mem=mem_i,
593
+ )
594
+ else:
595
+ hidden_states = layer(*args, mem=mem_i)
596
+ mem_layers.append(check_detach(hidden_states))
597
+
598
+ # Final layer norm.
599
+ output = self.final_layernorm(hidden_states)
600
+ mem_layers = self.update_mems(mem_layers, memory_states)
601
+ return (output, mem_layers)
602
+
603
+ def update_mems(self, hiddens, mems):
604
+ memory_length = mems[0].size(1) if mems else 0
605
+ query_length = hiddens[0].size(1)
606
+ new_memory_length = memory_length + query_length
607
+
608
+ new_mems = []
609
+ # with torch.no_grad():
610
+ for i in range(len(hiddens)):
611
+ if new_memory_length <= query_length:
612
+ new_mems.append(hiddens[i][:, -new_memory_length:])
613
+ else:
614
+ new_mems.append(torch.cat((mems[i][:, -new_memory_length + query_length:], hiddens[i]), dim=1))
615
+ return new_mems
616
+
617
+
618
+ class GLMPreTrainedModel(PreTrainedModel):
619
+ """
620
+ An abstract class to handle weights initialization and
621
+ a simple interface for downloading and loading pretrained models.
622
+ """
623
+
624
+ config_class = GLMConfig
625
+ base_model_prefix = "glm"
626
+ supports_gradient_checkpointing = True
627
+ _keys_to_ignore_on_load_missing = [r"position_ids"]
628
+
629
+ def _init_weights(self, module):
630
+ """ Initialize the weights """
631
+ if isinstance(module, torch.nn.Linear):
632
+ # Slightly different from the TF version which uses truncated_normal for initialization
633
+ # cf https://github.com/pytorch/pytorch/pull/5617
634
+ module.weight.data.normal_(mean=0.0, std=self.config.initializer_range)
635
+ if module.bias is not None:
636
+ module.bias.data.zero_()
637
+ elif isinstance(module, torch.nn.Embedding):
638
+ module.weight.data.normal_(mean=0.0, std=self.config.initializer_range)
639
+ if module.padding_idx is not None:
640
+ module.weight.data[module.padding_idx].zero_()
641
+ elif isinstance(module, torch.nn.LayerNorm):
642
+ module.bias.data.zero_()
643
+ module.weight.data.fill_(1.0)
644
+
645
+ def _set_gradient_checkpointing(self, module, value=False):
646
+ if isinstance(module, GLMModel):
647
+ module.gradient_checkpointing = value
648
+
649
+
650
+ GLM_START_DOCSTRING = r"""
651
+ This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) sub-class.
652
+ Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general
653
+ usage and behavior.
654
+
655
+ Parameters:
656
+ config ([`~GLMConfig`]): Model configuration class with all the parameters of the model.
657
+ Initializing with a config file does not load the weights associated with the model, only the configuration.
658
+ Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights.
659
+ """
660
+
661
+ GLM_INPUTS_DOCSTRING = r"""
662
+ Args:
663
+ input_ids (`torch.LongTensor` of shape `({0})`):
664
+ Indices of input sequence tokens in the vocabulary.
665
+
666
+ Indices can be obtained using [`GLMTokenizer`].
667
+ See [`PreTrainedTokenizer.encode`] and
668
+ [`PreTrainedTokenizer.__call__`] for details.
669
+
670
+ [What are input IDs?](../glossary#input-ids)
671
+ attention_mask (`torch.FloatTensor` of shape `({0})`, *optional*):
672
+ Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
673
+
674
+ - 1 for tokens that are **not masked**,
675
+ - 0 for tokens that are **masked**.
676
+
677
+ [What are attention masks?](../glossary#attention-mask)
678
+ token_type_ids (`torch.LongTensor` of shape `({0})`, *optional*):
679
+ Segment token indices to indicate first and second portions of the inputs. Indices are selected in `[0, 1]`:
680
+
681
+ - 0 corresponds to a *sentence A* token,
682
+ - 1 corresponds to a *sentence B* token.
683
+
684
+ [What are token type IDs?](../glossary#token-type-ids)
685
+ position_ids (`torch.LongTensor` of shape `({0})`, *optional*):
686
+ Indices of positions of each input sequence tokens in the position embeddings.
687
+ Selected in the range `[0, config.max_position_embeddings - 1]`.
688
+
689
+ [What are position IDs?](../glossary#position-ids)
690
+ head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*):
691
+ Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`:
692
+
693
+ - 1 indicates the head is **not masked**,
694
+ - 0 indicates the head is **masked**.
695
+
696
+ inputs_embeds (`torch.FloatTensor` of shape `({0}, hidden_size)`, *optional*):
697
+ Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation.
698
+ This is useful if you want more control over how to convert *input_ids* indices into associated vectors
699
+ than the model's internal embedding lookup matrix.
700
+ output_attentions (`bool`, *optional*):
701
+ Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
702
+ tensors for more detail.
703
+ output_hidden_states (`bool`, *optional*):
704
+ Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
705
+ more detail.
706
+ return_dict (`bool`, *optional*):
707
+ Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
708
+ """
709
+
710
+
711
+ @add_start_docstrings(
712
+ "The bare GLM Model transformer outputting raw hidden-states without any specific head on top.",
713
+ GLM_START_DOCSTRING,
714
+ )
715
+ class GLMModel(GLMPreTrainedModel):
716
+ """
717
+
718
+ The model can behave as an encoder (with only self-attention) as well
719
+ as a decoder, in which case a layer of cross-attention is added between
720
+ the self-attention layers, following the architecture described in [Attention is
721
+ all you need](https://arxiv.org/abs/1706.03762) by Ashish Vaswani,
722
+ Noam Shazeer, Niki Parmar, Jakob Uszkoreit, Llion Jones, Aidan N. Gomez, Lukasz Kaiser and Illia Polosukhin.
723
+
724
+ To behave as an decoder the model needs to be initialized with the
725
+ `is_decoder` argument of the configuration set to `True`.
726
+ To be used in a Seq2Seq model, the model needs to initialized with both `is_decoder`
727
+ argument and `add_cross_attention` set to `True`; an
728
+ `encoder_hidden_states` is then expected as an input to the forward pass.
729
+ """
730
+
731
+ def __init__(self, config):
732
+ super().__init__(config)
733
+ self.config = config
734
+ self.output_predict = config.output_predict
735
+ # Word embeddings (parallel).
736
+ self.word_embeddings = VocabEmbedding(config)
737
+
738
+ # Transformer
739
+ self.transformer = GLMStack(config.num_layers,
740
+ config.hidden_size,
741
+ config.num_attention_heads,
742
+ config.max_sequence_length,
743
+ config.embedding_dropout_prob,
744
+ config.attention_dropout_prob,
745
+ config.output_dropout_prob,
746
+ config.checkpoint_activations,
747
+ config.checkpoint_num_layers,
748
+ attention_scale=config.attention_scale,
749
+ block_position_encoding=config.block_position_encoding)
750
+
751
+ # Initialize weights and apply final processing
752
+ self.post_init()
753
+
754
+ @add_start_docstrings_to_model_forward(GLM_INPUTS_DOCSTRING.format("batch_size, sequence_length"))
755
+ @add_code_sample_docstrings(
756
+ processor_class=_TOKENIZER_FOR_DOC,
757
+ checkpoint=_CHECKPOINT_FOR_DOC,
758
+ output_type=BaseModelOutputWithPastAndCrossAttentions,
759
+ config_class=_CONFIG_FOR_DOC,
760
+ )
761
+ def forward(
762
+ self,
763
+ input_ids=None,
764
+ position_ids=None,
765
+ attention_mask=None,
766
+ mems=None,
767
+ **kwargs
768
+ ):
769
+ batch_size = input_ids.size(0)
770
+ words_embeddings = self.word_embeddings(input_ids)
771
+ embeddings = words_embeddings
772
+
773
+ device = input_ids.device
774
+ input_shape = input_ids.size()
775
+
776
+ if position_ids is None:
777
+ position_ids = torch.arange(0, input_shape[-1], dtype=torch.long, device=device)
778
+ block_position_ids = torch.zeros(input_shape[-1], dtype=torch.long, device=device)
779
+ position_ids = torch.stack((position_ids, block_position_ids), dim=0).unsqueeze(0)
780
+ if attention_mask is None:
781
+ attention_mask = torch.zeros(batch_size)
782
+ # Transformer.
783
+ transformer_output = self.transformer(embeddings, position_ids, attention_mask, mems)
784
+ last_hidden_states, mems = transformer_output
785
+ logits = None
786
+ if self.output_predict:
787
+ logits = F.linear(last_hidden_states, self.word_embeddings.weight)
788
+
789
+ return ModelOutput(
790
+ last_hidden_states=last_hidden_states,
791
+ logits=logits,
792
+ mems=mems,
793
+ )
794
+
795
+
796
+ @add_start_docstrings(
797
+ """GLM Model transformer for multiple choice classification""",
798
+ GLM_START_DOCSTRING
799
+ )
800
+ class GLMForMultipleChoice(GLMPreTrainedModel):
801
+ def __init__(self, config):
802
+ super().__init__(config)
803
+ self.glm = GLMModel(config)
804
+ self.post_init()
805
+
806
+ def forward(
807
+ self,
808
+ input_ids=None,
809
+ position_ids=None,
810
+ attention_mask=None,
811
+ choice_ids=None,
812
+ choice_indices=None,
813
+ labels=None,
814
+ mems=None,
815
+ **kwargs
816
+ ):
817
+ model_output = self.glm(input_ids, position_ids, attention_mask, mems=mems, **kwargs)
818
+ lm_logits = model_output.logits
819
+ log_probs = []
820
+ for output, choices, choice_index in zip(F.log_softmax(lm_logits, dim=-1), choice_ids, choice_indices):
821
+ log_probs_single = []
822
+ for choice, choice_target_id in zip(choices, choice_index):
823
+ tmp = output[choice_target_id, choice]
824
+ log_probs_single.append(tmp.sum())
825
+ log_probs.append(torch.stack(log_probs_single))
826
+ log_probs = torch.stack(log_probs)
827
+ loss = None
828
+ if labels is not None:
829
+ loss_fct = CrossEntropyLoss()
830
+ loss = loss_fct(log_probs, labels)
831
+ return ModelOutput(
832
+ loss=loss,
833
+ logits=log_probs,
834
+ lm_logits=lm_logits,
835
+ mems=model_output.mems
836
+ )
837
+
838
+ @add_start_docstrings(
839
+ """GLM Model transformer with a `language modeling` head on top""",
840
+ GLM_START_DOCSTRING,
841
+ )
842
+ class GLMForConditionalGeneration(GLMPreTrainedModel):
843
+ def __init__(self, config):
844
+ super().__init__(config)
845
+ self.glm = GLMModel(config)
846
+ self.post_init()
847
+
848
+ def _reorder_cache(self, past, beam_idx):
849
+ # if decoder past is not included in output
850
+ # speedy decoding is disabled and no need to reorder
851
+ if past is None:
852
+ return past
853
+ reordered_decoder_past = ()
854
+ for layer_past_states in past:
855
+ # get the correct batch idx from layer past batch dim
856
+ reordered_decoder_past = reordered_decoder_past + (
857
+ layer_past_states.index_select(0, beam_idx.to(layer_past_states.device)),)
858
+ return reordered_decoder_past
859
+
860
+ def prepare_inputs_for_generation(self, input_ids, past=None, position_ids=None, generation_attention_mask=None,
861
+ **kwargs):
862
+ # only last token for inputs_ids if past is defined in kwargs
863
+ attention_mask = generation_attention_mask
864
+ seq_length = input_ids.shape[1]
865
+ if past:
866
+ if position_ids is not None:
867
+ position_ids = position_ids[:, :, seq_length - 1].unsqueeze(-1)
868
+ if attention_mask is not None:
869
+ attention_mask = attention_mask[:, :, seq_length - 1, :seq_length].unsqueeze(-2)
870
+ input_ids = input_ids[:, -1].unsqueeze(-1)
871
+ else:
872
+ if position_ids is not None:
873
+ position_ids = position_ids[:, :, :seq_length]
874
+ if attention_mask is not None:
875
+ attention_mask = attention_mask[:, :, :seq_length, :seq_length]
876
+ if position_ids is not None and input_ids.size(0) > position_ids.size(0):
877
+ batch_size = position_ids.size(0)
878
+ num_beams = input_ids.size(0) // batch_size
879
+ position_ids = position_ids.unsqueeze(1).expand(-1, num_beams, -1, -1)
880
+ position_ids = position_ids.reshape(batch_size * num_beams, *position_ids.shape[-2:])
881
+ if attention_mask is not None and input_ids.size(0) > attention_mask.size(0):
882
+ batch_size = attention_mask.size(0)
883
+ num_beams = input_ids.size(0) // batch_size
884
+ attention_mask = attention_mask.unsqueeze(1).expand(-1, num_beams, -1, -1, -1)
885
+ attention_mask = attention_mask.reshape(batch_size * num_beams, *attention_mask.shape[-3:])
886
+ return {
887
+ "input_ids": input_ids,
888
+ "position_ids": position_ids,
889
+ "attention_mask": attention_mask,
890
+ "mems": past,
891
+ }
892
+
893
+ def forward(
894
+ self,
895
+ input_ids=None,
896
+ position_ids=None,
897
+ attention_mask=None,
898
+ labels=None,
899
+ mems=None,
900
+ **kwargs
901
+ ):
902
+ model_output = self.glm(input_ids, position_ids, attention_mask, mems=mems, **kwargs)
903
+ lm_logits = model_output.logits
904
+ loss = None
905
+ if labels is not None:
906
+ loss_fct = CrossEntropyLoss(ignore_index=-100)
907
+ loss = loss_fct(lm_logits.view(-1, lm_logits.size(-1)), labels.view(-1))
908
+ return ModelOutput(
909
+ loss=loss,
910
+ logits=lm_logits,
911
+ mems=model_output.mems
912
+ )
913
+
914
+
915
+ @add_start_docstrings(
916
+ """GLM Model transformer with a sequence classification/regression head on top (a linear layer on top of
917
+ the pooled output) e.g. for GLUE tasks. """,
918
+ GLM_START_DOCSTRING,
919
+ )
920
+ class GLMForSequenceClassification(GLMPreTrainedModel):
921
+ def __init__(self, config: GLMConfig, hidden_dropout=None, num_class=1):
922
+ super().__init__(config)
923
+ self.pool_token = config.pool_token
924
+ self.glm = GLMModel(config)
925
+ self.glm.output_predict = False
926
+ self.num_class = num_class
927
+ # Multi-choice head.
928
+ self.dense = torch.nn.Linear(config.hidden_size, config.hidden_size)
929
+ classifier_dropout = (
930
+ config.classifier_dropout if config.classifier_dropout is not None else config.output_dropout_prob
931
+ )
932
+ self.dropout = torch.nn.Dropout(classifier_dropout)
933
+ self.out_proj = torch.nn.Linear(config.hidden_size, config.num_labels)
934
+
935
+ # Initialize weights and apply final processing
936
+ self.post_init()
937
+
938
+ @add_start_docstrings_to_model_forward(GLM_INPUTS_DOCSTRING.format("batch_size, sequence_length"))
939
+ @add_code_sample_docstrings(
940
+ processor_class=_TOKENIZER_FOR_DOC,
941
+ checkpoint=_CHECKPOINT_FOR_DOC,
942
+ output_type=SequenceClassifierOutput,
943
+ config_class=_CONFIG_FOR_DOC,
944
+ )
945
+ def forward(self,
946
+ input_ids=None,
947
+ position_ids=None,
948
+ attention_mask=None,
949
+ labels=None):
950
+
951
+ num_choices = None
952
+
953
+ if len(input_ids.shape) == 3:
954
+ batch_size, num_choices = input_ids.shape[:2]
955
+ input_ids = input_ids.reshape(-1, input_ids.size(-1))
956
+ attention_mask = attention_mask.reshape(-1, *attention_mask.size()[2:])
957
+ position_ids = position_ids.reshape(-1, *position_ids.size()[2:])
958
+ model_out = self.glm(input_ids, position_ids, attention_mask)
959
+ outputs, mems = model_out.last_hidden_states, model_out.mems
960
+
961
+ output = outputs[:, 0, :]
962
+ output = self.dropout(output)
963
+ output = torch.tanh(self.dense(output))
964
+ output = self.dropout(output)
965
+ logits = self.out_proj(output)
966
+ if num_choices is not None:
967
+ logits = logits.view(-1, num_choices)
968
+ loss = None
969
+ if labels is not None:
970
+ loss_fct = CrossEntropyLoss()
971
+ loss = loss_fct(logits, labels)
972
+ # loss = F.cross_entropy(logits.contiguous().float(), labels.long())
973
+ return SequenceClassifierOutput(loss=loss,
974
+ logits=logits,
975
+ hidden_states=outputs)
pytorch_model.bin ADDED
@@ -0,0 +1,3 @@
 
 
 
 
1
+ version https://git-lfs.github.com/spec/v1
2
+ oid sha256:8dc6d01e84acccd8a5769d5a62fab8c1dbcfc361317b26a1c35546a731d32c9a
3
+ size 3840301119
tokenization_glm.py ADDED
@@ -0,0 +1,362 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ import os
2
+ from typing import Optional, Tuple, List, Union
3
+ from shutil import copyfile
4
+ import torch
5
+
6
+ from transformers import PreTrainedTokenizer, RobertaTokenizer, GPT2Tokenizer, BertTokenizer
7
+ from transformers.utils import logging
8
+ from transformers.tokenization_utils_base import BatchEncoding
9
+ from transformers.models.auto.tokenization_auto import get_tokenizer_config
10
+ from transformers.utils.generic import _is_torch_device
11
+ import sentencepiece as spm
12
+
13
+ logger = logging.get_logger(__name__)
14
+
15
+
16
+ class GLMBatchEncoding(BatchEncoding):
17
+ def to(self, device: Union[str, "torch.device"]) -> "BatchEncoding":
18
+ """
19
+ Send all values to device by calling `v.to(device)` (PyTorch only).
20
+
21
+ Args:
22
+ device (`str` or `torch.device`): The device to put the tensors on.
23
+
24
+ Returns:
25
+ [`BatchEncoding`]: The same instance after modification.
26
+ """
27
+
28
+ # This check catches things like APEX blindly calling "to" on all inputs to a module
29
+ # Otherwise it passes the casts down and casts the LongTensor containing the token idxs
30
+ # into a HalfTensor
31
+ if isinstance(device, str) or _is_torch_device(device) or isinstance(device, int):
32
+ self.data = {k: v.to(device=device) if torch.is_tensor(v) else v for k, v in self.data.items()}
33
+ else:
34
+ logger.warning(f"Attempting to cast a BatchEncoding to type {str(device)}. This is not supported.")
35
+ return self
36
+
37
+
38
+ class GLMTokenizerMixin:
39
+ @property
40
+ def sop_token(self) -> Optional[str]:
41
+ return "<|startofpiece|>"
42
+
43
+ @property
44
+ def sop_token_id(self) -> Optional[int]:
45
+ """
46
+ `Optional[int]`: Id of the start token in the vocabulary, used when training a model with autoregressive blank filling.
47
+ """
48
+ return self.convert_tokens_to_ids(self.sop_token)
49
+
50
+ @property
51
+ def eop_token(self) -> Optional[str]:
52
+ return "<|endofpiece|>"
53
+
54
+ @property
55
+ def eop_token_id(self) -> Optional[int]:
56
+ """
57
+ `Optional[int]`: Id of the end token in the vocabulary, used when training a model with autoregressive blank filling.
58
+ """
59
+ return self.convert_tokens_to_ids(self.eop_token)
60
+
61
+ @property
62
+ def gmask_token_id(self) -> int:
63
+ return self.convert_tokens_to_ids("[gMASK]")
64
+
65
+ @property
66
+ def smask_token_id(self) -> int:
67
+ return self.convert_tokens_to_ids("[sMASK]")
68
+
69
+ @property
70
+ def mask_token_ids(self):
71
+ return [self.mask_token_id, self.smask_token_id, self.gmask_token_id]
72
+
73
+ def _build_input_for_multiple_choice(self, context, choices):
74
+ context_id = context["input_ids"]
75
+ if torch.is_tensor(context_id):
76
+ context_id = context_id.tolist()
77
+
78
+ division = len(context_id)
79
+ mask_position = context_id.index(self.mask_token_id)
80
+
81
+ token = torch.tensor(context_id, dtype=torch.long)
82
+ attention_mask = [context["attention_mask"].expand(division, -1)]
83
+ position_id = torch.arange(division, dtype=torch.long)
84
+ block_position_id = torch.zeros(division, dtype=torch.long)
85
+
86
+ choice_ids, choice_indices = [], []
87
+
88
+ for choice_str in choices:
89
+ choice = torch.tensor(self(choice_str, add_special_tokens=False, padding=False)['input_ids'],
90
+ dtype=torch.long)
91
+ choice_ids.append(choice)
92
+ choice_indices.append(torch.arange(len(token), len(token) + len(choice), dtype=torch.long))
93
+ attention_mask.append(torch.tril(torch.ones((len(choice), len(choice)), dtype=torch.long)))
94
+
95
+ token = torch.cat((token, torch.tensor([self.sop_token_id], dtype=torch.long), choice[:-1]))
96
+ position_id = torch.cat((position_id, torch.tensor([mask_position] * len(choice), dtype=torch.long)))
97
+ block_position_id = torch.cat((block_position_id, torch.arange(1, 1 + len(choice), dtype=torch.long)))
98
+
99
+ attention_mask = torch.block_diag(*attention_mask)
100
+ attention_mask[division:, :division] = context["attention_mask"].unsqueeze(0)
101
+
102
+ return {
103
+ "input_ids": token,
104
+ "position_ids": torch.stack((position_id, block_position_id)),
105
+ "attention_mask": attention_mask,
106
+ "choice_ids": choice_ids,
107
+ "choice_indices": choice_indices
108
+ }
109
+
110
+ def _pad_batch(self, tokens, position_ids, attention_mask, max_seq_length):
111
+ pad_length = max_seq_length - len(tokens)
112
+ attention_mask = torch.nn.functional.pad(
113
+ attention_mask,
114
+ (0, pad_length, 0, pad_length),
115
+ mode="constant",
116
+ value=0,
117
+ )
118
+ tokens = torch.cat((tokens, torch.zeros(pad_length, dtype=torch.long)))
119
+ position_ids = torch.cat((position_ids, position_ids[..., -1:].expand(-1, pad_length)), dim=-1)
120
+ return tokens, position_ids, attention_mask
121
+
122
+ def _collate(self, samples):
123
+ TILE = 1
124
+ length_to_pad = (max(map(lambda spl: len(spl["input_ids"]), samples)) + TILE - 1) // TILE * TILE
125
+
126
+ token_batch, position_id_batch, attention_mask_batch = [], [], []
127
+ choices_batch, choice_target_ids_batch = [], []
128
+
129
+ for sample in samples:
130
+ token, position_id, attention_mask = self._pad_batch(
131
+ sample["input_ids"], sample["position_ids"], sample["attention_mask"], length_to_pad
132
+ )
133
+ token_batch.append(token)
134
+ position_id_batch.append(position_id)
135
+ attention_mask_batch.append(attention_mask)
136
+ choices_batch.append(sample["choice_ids"])
137
+ choice_target_ids_batch.append(sample["choice_indices"])
138
+ return {
139
+ "input_ids": torch.stack(token_batch),
140
+ "position_ids": torch.stack(position_id_batch),
141
+ "attention_mask": torch.stack(attention_mask_batch).unsqueeze(1),
142
+ "choice_ids": choices_batch,
143
+ "choice_indices": choice_target_ids_batch,
144
+ }
145
+
146
+ def build_inputs_for_multiple_choice(self, model_input: BatchEncoding, choices, max_length=None):
147
+ samples = [{key: value[i] for key, value in model_input.items()} for i in range(len(model_input["input_ids"]))]
148
+ samples = [self._build_input_for_multiple_choice(sample, choice) for sample, choice in
149
+ zip(samples, choices)]
150
+ inputs = self._collate(samples)
151
+ return GLMBatchEncoding(inputs)
152
+
153
+ def build_inputs_for_generation(self, model_input: BatchEncoding, max_gen_length=512, targets=None, padding=False):
154
+ mask_ids = self.mask_token_ids
155
+ input_ids = model_input.input_ids
156
+ batch_size, seq_length = input_ids.shape[:2]
157
+ position_id, block_position_id = list(range(seq_length)), [0 for _ in range(seq_length)]
158
+ position_ids, block_position_ids = [], []
159
+ labels = None
160
+ if targets is not None:
161
+ is_batched = isinstance(targets, (list, tuple))
162
+ targets = self(targets, add_special_tokens=False, padding=False).input_ids
163
+ if not is_batched:
164
+ targets = [targets]
165
+ assert len(targets) == len(input_ids)
166
+ targets = [(target + [self.eop_token_id])[:max_gen_length] for target in targets]
167
+ if not padding:
168
+ max_gen_length = max(map(len, targets))
169
+ targets = [[self.sop_token_id] + target for target in targets]
170
+ labels = [target[1:] for target in targets]
171
+ targets = [target + [self.pad_token_id] * (max_gen_length + 1 - len(target)) for target in targets]
172
+ labels = [label + [-100] * (max_gen_length - len(label)) for label in labels]
173
+ targets = torch.tensor(targets, dtype=input_ids.dtype, device=input_ids.device)
174
+ labels = torch.tensor(labels, dtype=input_ids.dtype, device=input_ids.device)
175
+ labels = torch.cat((input_ids.new_full((batch_size, seq_length), -100), labels), dim=1)
176
+ for i in range(batch_size):
177
+ mask_positions = []
178
+ for mask_id in mask_ids:
179
+ mask_positions += (input_ids[i] == mask_id).nonzero(as_tuple=True)[0].tolist()
180
+ if not mask_positions:
181
+ raise ValueError("Cannot find mask token in the input")
182
+ mask_positions.sort()
183
+ mask_pos = mask_positions[0]
184
+ position_ids.append(position_id + [mask_pos] * max_gen_length)
185
+ block_position_ids.append(block_position_id + list(range(1, max_gen_length + 1)))
186
+ position_ids = torch.tensor(position_ids, dtype=input_ids.dtype, device=input_ids.device)
187
+ block_position_ids = torch.tensor(block_position_ids, dtype=input_ids.dtype, device=input_ids.device)
188
+ position_ids = torch.stack((position_ids, block_position_ids), dim=1)
189
+ attention_mask = model_input.attention_mask
190
+ attention_mask = attention_mask.unsqueeze(1).expand(-1, seq_length + max_gen_length, -1)
191
+ generation_attention_mask = torch.cat([attention_mask.new_zeros((seq_length, max_gen_length)),
192
+ torch.tril(attention_mask.new_ones((max_gen_length, max_gen_length)))],
193
+ dim=0).unsqueeze(0).expand(batch_size, -1, -1)
194
+ attention_mask = torch.cat((attention_mask, generation_attention_mask), dim=2)
195
+ attention_mask = attention_mask.unsqueeze(1)
196
+ if targets is None:
197
+ input_ids = torch.cat((input_ids, input_ids.new_full((batch_size, 1), self.sop_token_id)), dim=-1)
198
+ else:
199
+ input_ids = torch.cat((input_ids, targets[:, :-1]), dim=1)
200
+ batch = {"input_ids": input_ids, "position_ids": position_ids}
201
+ if labels is None:
202
+ batch["generation_attention_mask"] = attention_mask
203
+ else:
204
+ batch["attention_mask"] = attention_mask
205
+ batch["labels"] = labels
206
+ return BatchEncoding(batch)
207
+
208
+
209
+ class GLMRobertaTokenizer(RobertaTokenizer, GLMTokenizerMixin):
210
+ model_input_names = ["input_ids", "position_ids", "attention_mask"]
211
+ truncation_side: str = "left"
212
+
213
+ @property
214
+ def gmask_token_id(self) -> int:
215
+ raise NotImplementedError("The model doesn't support gMASK")
216
+
217
+ @property
218
+ def smask_token_id(self) -> int:
219
+ raise NotImplementedError("The model doesn't support sMASK")
220
+
221
+ @property
222
+ def mask_token_ids(self):
223
+ return [self.mask_token_id]
224
+
225
+
226
+ class GLMChineseTokenizer(PreTrainedTokenizer, GLMTokenizerMixin):
227
+ vocab_files_names = {"vocab_file": "cog-pretrain.model"}
228
+ truncation_side: str = "left"
229
+
230
+ def __init__(self, vocab_file, **kwargs):
231
+ super().__init__(**kwargs)
232
+ self.vocab_file = vocab_file
233
+ self.sp_model = spm.SentencePieceProcessor()
234
+ self.sp_model.Load(vocab_file)
235
+
236
+ @property
237
+ def vocab_size(self):
238
+ return len(self.sp_model)
239
+
240
+ def get_vocab(self):
241
+ vocab = {self.convert_ids_to_tokens(i): i for i in range(self.vocab_size)}
242
+ vocab.update(self.added_tokens_encoder)
243
+ return vocab
244
+
245
+ def _tokenize(self, text, **kwargs):
246
+ return self.sp_model.encode(text, out_type=str)
247
+
248
+ def _convert_token_to_id(self, token):
249
+ """Converts a token (str) in an id using the vocab."""
250
+ return self.sp_model.PieceToId(token)
251
+
252
+ def _convert_id_to_token(self, index):
253
+ """Converts an index (integer) in a token (str) using the vocab."""
254
+ return self.sp_model.IdToPiece(index)
255
+
256
+ def convert_tokens_to_string(self, tokens):
257
+ return self.sp_model.decode(tokens)
258
+
259
+ def save_vocabulary(self, save_directory: str, filename_prefix: Optional[str] = None) -> Tuple[str]:
260
+ if not os.path.isdir(save_directory):
261
+ logger.error(f"Vocabulary path ({save_directory}) should be a directory")
262
+ return
263
+ out_vocab_file = os.path.join(
264
+ save_directory, (filename_prefix + "-" if filename_prefix else "") + self.vocab_files_names["vocab_file"]
265
+ )
266
+
267
+ if os.path.abspath(self.vocab_file) != os.path.abspath(out_vocab_file) and os.path.isfile(self.vocab_file):
268
+ copyfile(self.vocab_file, out_vocab_file)
269
+ elif not os.path.isfile(self.vocab_file):
270
+ with open(out_vocab_file, "wb") as fi:
271
+ content_spiece_model = self.sp_model.serialized_model_proto()
272
+ fi.write(content_spiece_model)
273
+
274
+ return (out_vocab_file,)
275
+
276
+ def build_inputs_with_special_tokens(
277
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None
278
+ ) -> List[int]:
279
+ """
280
+ Build model inputs from a sequence or a pair of sequence for sequence classification tasks by concatenating and
281
+ adding special tokens. A BERT sequence has the following format:
282
+
283
+ - single sequence: ``[CLS] X [SEP]``
284
+ - pair of sequences: ``[CLS] A [SEP] B [SEP]``
285
+
286
+ Args:
287
+ token_ids_0 (:obj:`List[int]`):
288
+ List of IDs to which the special tokens will be added.
289
+ token_ids_1 (:obj:`List[int]`, `optional`):
290
+ Optional second list of IDs for sequence pairs.
291
+
292
+ Returns:
293
+ :obj:`List[int]`: List of `input IDs <../glossary.html#input-ids>`__ with the appropriate special tokens.
294
+ """
295
+ assert token_ids_1 is None
296
+ cls = [self.cls_token_id]
297
+ eos = [self.eos_token_id]
298
+ return cls + token_ids_0 + eos
299
+
300
+
301
+ class GLMGPT2Tokenizer(GPT2Tokenizer, GLMTokenizerMixin):
302
+ model_input_names = ["input_ids", "position_ids", "attention_mask"]
303
+ truncation_side: str = "left"
304
+
305
+ def build_inputs_with_special_tokens(
306
+ self, token_ids_0: List[int], token_ids_1: Optional[List[int]] = None
307
+ ) -> List[int]:
308
+ """
309
+ Build model inputs from a sequence or a pair of sequence for sequence classification tasks by concatenating and
310
+ adding special tokens. A BERT sequence has the following format:
311
+
312
+ - single sequence: ``[CLS] X [SEP]``
313
+ - pair of sequences: ``[CLS] A [SEP] B [SEP]``
314
+
315
+ Args:
316
+ token_ids_0 (:obj:`List[int]`):
317
+ List of IDs to which the special tokens will be added.
318
+ token_ids_1 (:obj:`List[int]`, `optional`):
319
+ Optional second list of IDs for sequence pairs.
320
+
321
+ Returns:
322
+ :obj:`List[int]`: List of `input IDs <../glossary.html#input-ids>`__ with the appropriate special tokens.
323
+ """
324
+ assert token_ids_1 is None
325
+ cls = [self.cls_token_id]
326
+ eos = [self.eos_token_id]
327
+ return cls + token_ids_0 + eos
328
+
329
+
330
+ class GLMBertTokenizer(BertTokenizer, GLMTokenizerMixin):
331
+ model_input_names = ["input_ids", "position_ids", "attention_mask"]
332
+ truncation_side: str = "left"
333
+
334
+ @property
335
+ def gmask_token_id(self) -> int:
336
+ raise NotImplementedError("The model doesn't support gMASK")
337
+
338
+ @property
339
+ def smask_token_id(self) -> int:
340
+ raise NotImplementedError("The model doesn't support sMASK")
341
+
342
+ @property
343
+ def mask_token_ids(self):
344
+ return [self.mask_token_id]
345
+
346
+
347
+ class GLMTokenizer:
348
+ @classmethod
349
+ def from_pretrained(cls, pretrained_model_name_or_path, *inputs, **kwargs):
350
+ tokenizer_config = get_tokenizer_config(pretrained_model_name_or_path, **kwargs)
351
+ config_tokenizer_class = tokenizer_config.get("tokenizer_class")
352
+ if config_tokenizer_class == "GLMRobertaTokenizer":
353
+ tokenizer_class = GLMRobertaTokenizer
354
+ elif config_tokenizer_class == "GLMChineseTokenizer":
355
+ tokenizer_class = GLMChineseTokenizer
356
+ elif config_tokenizer_class == "GLMGPT2Tokenizer":
357
+ tokenizer_class = GLMGPT2Tokenizer
358
+ elif config_tokenizer_class == "GLMBertTokenizer":
359
+ tokenizer_class = GLMBertTokenizer
360
+ else:
361
+ raise NotImplementedError("Not implemented tokenizer type:", config_tokenizer_class)
362
+ return tokenizer_class.from_pretrained(pretrained_model_name_or_path, *inputs, **kwargs)
tokenizer_config.json ADDED
@@ -0,0 +1,18 @@
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
+ {
2
+ "name_or_path": "THUDM/glm-2b",
3
+ "eos_token": "<|endoftext|>",
4
+ "pad_token": "<|endoftext|>",
5
+ "cls_token": "[CLS]",
6
+ "mask_token": "[MASK]",
7
+ "unk_token": "[UNK]",
8
+ "additional_special_tokens": ["<|startofpiece|>", "<|endofpiece|>", "[gMASK]", "[sMASK]"],
9
+ "add_prefix_space": false,
10
+ "tokenizer_class": "GLMGPT2Tokenizer",
11
+ "use_fast": false,
12
+ "auto_map": {
13
+ "AutoTokenizer": [
14
+ "tokenization_glm.GLMGPT2Tokenizer",
15
+ null
16
+ ]
17
+ }
18
+ }
vocab.json ADDED
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