Upload 9 files
Browse files- config.json +28 -0
- configuration_xverse.py +123 -0
- generation_config.json +7 -0
- model.safetensors +3 -0
- modeling_xverse.py +870 -0
- quantization.py +124 -0
- special_tokens_map.json +23 -0
- tokenizer.json +0 -0
- tokenizer_config.json +5 -0
config.json
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{
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"_name_or_path": "/home/ea/work/my_optimum_intel/optimum-intel/xverse-7b",
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"architectures": [
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"XverseForCausalLM"
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],
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"auto_map": {
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"AutoConfig": "configuration_xverse.XverseConfig",
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"AutoModelForCausalLM": "modeling_xverse.XverseForCausalLM"
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},
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"bos_token_id": 2,
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"eos_token_id": 3,
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"hidden_act": "silu",
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"hidden_size": 32,
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"initializer_range": 0.02,
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"intermediate_size": 86,
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"max_position_embeddings": 64,
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"max_tokenizer_truncation": 6144,
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"model_type": "xverse",
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"num_attention_heads": 2,
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"num_hidden_layers": 2,
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"pad_token_id": 1,
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"rms_norm_eps": 1e-06,
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"tie_word_embeddings": false,
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"torch_dtype": "float32",
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"transformers_version": "4.40.1",
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"use_cache": true,
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"vocab_size": 100534
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}
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configuration_xverse.py
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# coding=utf-8
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# Copyright 2022 EleutherAI and the HuggingFace Inc. team. All rights reserved.
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#
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# This code is based on EleutherAI's GPT-NeoX library and the GPT-NeoX
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# and OPT implementations in this library. It has been modified from its
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# original forms to accommodate minor architectural differences compared
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# to GPT-NeoX and OPT used by the Meta AI team that trained the model.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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""" XVERSE model configuration"""
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from transformers.configuration_utils import PretrainedConfig
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from transformers.utils import logging
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logger = logging.get_logger(__name__)
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XVERSE_PRETRAINED_CONFIG_ARCHIVE_MAP = {}
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class XverseConfig(PretrainedConfig):
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r"""
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This is the configuration class to store the configuration of a [`XverseModel`]. It is used to instantiate an Xverse
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model according to the specified arguments, defining the model architecture. Instantiating a configuration with the
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defaults will yield a similar configuration to that of the XVERSE-13B.
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Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the
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documentation from [`PretrainedConfig`] for more information.
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Args:
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vocab_size (`int`, *optional*, defaults to 100278):
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Vocabulary size of the XVERSE model. Defines the number of different tokens that can be represented by the
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`inputs_ids` passed when calling [`XverseModel`]
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hidden_size (`int`, *optional*, defaults to 5120):
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Dimension of the hidden representations.
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intermediate_size (`int`, *optional*, defaults to 13824):
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Dimension of the MLP representations.
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num_hidden_layers (`int`, *optional*, defaults to 40):
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Number of hidden layers in the Transformer encoder.
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num_attention_heads (`int`, *optional*, defaults to 40):
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Number of attention heads for each attention layer in the Transformer encoder.
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hidden_act (`str` or `function`, *optional*, defaults to `"silu"`):
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The non-linear activation function (function or string) in the decoder.
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max_position_embeddings (`int`, *optional*, defaults to 8192):
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The maximum sequence length that this model might ever be used with. Typically set this to something large
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just in case (e.g., 512 or 1024 or 2048).
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initializer_range (`float`, *optional*, defaults to 0.02):
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The standard deviation of the truncated_normal_initializer for initializing all weight matrices.
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rms_norm_eps (`float`, *optional*, defaults to 1e-6):
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The epsilon used by the rms normalization layers.
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use_cache (`bool`, *optional*, defaults to `True`):
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Whether or not the model should return the last key/values attentions (not used by all models). Only
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relevant if `config.is_decoder=True`.
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tie_word_embeddings(`bool`, *optional*, defaults to `False`):
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Whether to tie weight embeddings
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Example:
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```python
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>>> from transformers import XverseModel, XverseConfig
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>>> # Initializing a Xverse XVERSE-13B style configuration
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>>> configuration = XverseConfig()
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>>> # Initializing a model from the XVERSE-13B style configuration
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>>> model = XverseModel(configuration)
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>>> # Accessing the model configuration
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>>> configuration = model.config
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```"""
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model_type = "xverse"
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keys_to_ignore_at_inference = ["past_key_values"]
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def __init__(
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self,
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vocab_size=100278,
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hidden_size=5120,
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intermediate_size=13824,
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num_hidden_layers=40,
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num_attention_heads=40,
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hidden_act="silu",
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max_position_embeddings=8192,
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max_tokenizer_truncation=8192,
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initializer_range=0.02,
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rms_norm_eps=1e-6,
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use_cache=True,
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pad_token_id=None,
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bos_token_id=1,
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eos_token_id=2,
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tie_word_embeddings=False,
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**kwargs,
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):
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self.vocab_size = vocab_size
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self.max_position_embeddings = max_position_embeddings
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self.hidden_size = hidden_size
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self.intermediate_size = intermediate_size
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self.num_hidden_layers = num_hidden_layers
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self.num_attention_heads = num_attention_heads
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self.hidden_act = hidden_act
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self.initializer_range = initializer_range
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self.rms_norm_eps = rms_norm_eps
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self.use_cache = use_cache
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self.max_tokenizer_truncation = max_tokenizer_truncation
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super().__init__(
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pad_token_id=pad_token_id,
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bos_token_id=bos_token_id,
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eos_token_id=eos_token_id,
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tie_word_embeddings=tie_word_embeddings,
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**kwargs,
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)
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generation_config.json
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{
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"_from_model_config": true,
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"bos_token_id": 2,
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"eos_token_id": 3,
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"pad_token_id": 1,
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"transformers_version": "4.40.1"
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}
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model.safetensors
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version https://git-lfs.github.com/spec/v1
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oid sha256:94e9267dcbb3f13cf163388721167ba2e989d8a0baf230cf8625af7d8044f85d
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size 25838672
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modeling_xverse.py
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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 |
+
""" PyTorch XVERSE model."""
|
21 |
+
import math
|
22 |
+
from typing import List, Optional, Tuple, Union
|
23 |
+
|
24 |
+
import torch
|
25 |
+
import torch.nn.functional as F
|
26 |
+
import torch.utils.checkpoint
|
27 |
+
from torch import nn
|
28 |
+
from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss
|
29 |
+
|
30 |
+
from transformers.activations import ACT2FN
|
31 |
+
from transformers.modeling_outputs import BaseModelOutputWithPast, CausalLMOutputWithPast
|
32 |
+
from transformers.modeling_utils import PreTrainedModel
|
33 |
+
from transformers.utils import add_start_docstrings, add_start_docstrings_to_model_forward, logging, replace_return_docstrings
|
34 |
+
from transformers.generation.utils import GenerationConfig
|
35 |
+
from .configuration_xverse import XverseConfig
|
36 |
+
|
37 |
+
|
38 |
+
logger = logging.get_logger(__name__)
|
39 |
+
|
40 |
+
_CONFIG_FOR_DOC = "XverseConfig"
|
41 |
+
|
42 |
+
|
43 |
+
# Copied from transformers.models.bart.modeling_bart._make_causal_mask
|
44 |
+
def _make_causal_mask(
|
45 |
+
input_ids_shape: torch.Size, dtype: torch.dtype, device: torch.device, past_key_values_length: int = 0
|
46 |
+
):
|
47 |
+
"""
|
48 |
+
Make causal mask used for bi-directional self-attention.
|
49 |
+
"""
|
50 |
+
bsz, tgt_len = input_ids_shape
|
51 |
+
mask = torch.full((tgt_len, tgt_len), torch.tensor(torch.finfo(dtype).min, device=device), device=device)
|
52 |
+
mask_cond = torch.arange(mask.size(-1), device=device)
|
53 |
+
mask.masked_fill_(mask_cond < (mask_cond + 1).view(mask.size(-1), 1), 0)
|
54 |
+
mask = mask.to(dtype)
|
55 |
+
|
56 |
+
if past_key_values_length > 0:
|
57 |
+
mask = torch.cat([torch.zeros(tgt_len, past_key_values_length, dtype=dtype, device=device), mask], dim=-1)
|
58 |
+
return mask[None, None, :, :].expand(bsz, 1, tgt_len, tgt_len + past_key_values_length)
|
59 |
+
|
60 |
+
|
61 |
+
# Copied from transformers.models.bart.modeling_bart._expand_mask
|
62 |
+
def _expand_mask(mask: torch.Tensor, dtype: torch.dtype, tgt_len: Optional[int] = None):
|
63 |
+
"""
|
64 |
+
Expands attention_mask from `[bsz, seq_len]` to `[bsz, 1, tgt_seq_len, src_seq_len]`.
|
65 |
+
"""
|
66 |
+
bsz, src_len = mask.size()
|
67 |
+
tgt_len = tgt_len if tgt_len is not None else src_len
|
68 |
+
|
69 |
+
expanded_mask = mask[:, None, None, :].expand(bsz, 1, tgt_len, src_len).to(dtype)
|
70 |
+
|
71 |
+
inverted_mask = 1.0 - expanded_mask
|
72 |
+
|
73 |
+
return inverted_mask.masked_fill(inverted_mask.to(torch.bool), torch.finfo(dtype).min)
|
74 |
+
|
75 |
+
|
76 |
+
class XverseRMSNorm(nn.Module):
|
77 |
+
def __init__(self, hidden_size, eps=1e-6):
|
78 |
+
"""
|
79 |
+
XverseRMSNorm is equivalent to T5LayerNorm
|
80 |
+
"""
|
81 |
+
super().__init__()
|
82 |
+
self.weight = nn.Parameter(torch.ones(hidden_size))
|
83 |
+
self.variance_epsilon = eps
|
84 |
+
|
85 |
+
def forward(self, hidden_states):
|
86 |
+
input_dtype = hidden_states.dtype
|
87 |
+
variance = hidden_states.to(torch.float32).pow(2).mean(-1, keepdim=True)
|
88 |
+
hidden_states = hidden_states * torch.rsqrt(variance + self.variance_epsilon)
|
89 |
+
|
90 |
+
return (self.weight * hidden_states).to(input_dtype)
|
91 |
+
|
92 |
+
|
93 |
+
class XverseRotaryEmbedding(torch.nn.Module):
|
94 |
+
def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None):
|
95 |
+
super().__init__()
|
96 |
+
inv_freq = 1.0 / (base ** (torch.arange(0, dim, 2).float().to(device) / dim))
|
97 |
+
self.register_buffer("inv_freq", inv_freq)
|
98 |
+
|
99 |
+
# Build here to make `torch.jit.trace` work.
|
100 |
+
self.max_seq_len_cached = max_position_embeddings
|
101 |
+
t = torch.arange(self.max_seq_len_cached, device=self.inv_freq.device, dtype=self.inv_freq.dtype)
|
102 |
+
freqs = torch.einsum("i,j->ij", t, self.inv_freq)
|
103 |
+
# Different from paper, but it uses a different permutation in order to obtain the same calculation
|
104 |
+
emb = torch.cat((freqs, freqs), dim=-1)
|
105 |
+
self.register_buffer("cos_cached", emb.cos()[None, None, :, :], persistent=False)
|
106 |
+
self.register_buffer("sin_cached", emb.sin()[None, None, :, :], persistent=False)
|
107 |
+
|
108 |
+
def forward(self, x, seq_len=None):
|
109 |
+
# x: [bs, num_attention_heads, seq_len, head_size]
|
110 |
+
# This `if` block is unlikely to be run after we build sin/cos in `__init__`. Keep the logic here just in case.
|
111 |
+
if seq_len > self.max_seq_len_cached:
|
112 |
+
self.max_seq_len_cached = seq_len
|
113 |
+
t = torch.arange(self.max_seq_len_cached, device=x.device, dtype=self.inv_freq.dtype)
|
114 |
+
freqs = torch.einsum("i,j->ij", t, self.inv_freq)
|
115 |
+
# Different from paper, but it uses a different permutation in order to obtain the same calculation
|
116 |
+
emb = torch.cat((freqs, freqs), dim=-1).to(x.device)
|
117 |
+
self.register_buffer("cos_cached", emb.cos()[None, None, :, :], persistent=False)
|
118 |
+
self.register_buffer("sin_cached", emb.sin()[None, None, :, :], persistent=False)
|
119 |
+
return (
|
120 |
+
self.cos_cached[:, :, :seq_len, ...].to(dtype=x.dtype),
|
121 |
+
self.sin_cached[:, :, :seq_len, ...].to(dtype=x.dtype),
|
122 |
+
)
|
123 |
+
|
124 |
+
|
125 |
+
def rotate_half(x):
|
126 |
+
"""Rotates half the hidden dims of the input."""
|
127 |
+
x1 = x[..., : x.shape[-1] // 2]
|
128 |
+
x2 = x[..., x.shape[-1] // 2 :]
|
129 |
+
return torch.cat((-x2, x1), dim=-1)
|
130 |
+
|
131 |
+
|
132 |
+
def apply_rotary_pos_emb(q, k, cos, sin, position_ids):
|
133 |
+
# The first two dimensions of cos and sin are always 1, so we can `squeeze` them.
|
134 |
+
cos = cos.squeeze(1).squeeze(0) # [seq_len, dim]
|
135 |
+
sin = sin.squeeze(1).squeeze(0) # [seq_len, dim]
|
136 |
+
cos = cos[position_ids].unsqueeze(1) # [bs, 1, seq_len, dim]
|
137 |
+
sin = sin[position_ids].unsqueeze(1) # [bs, 1, seq_len, dim]
|
138 |
+
q_embed = (q * cos) + (rotate_half(q) * sin)
|
139 |
+
k_embed = (k * cos) + (rotate_half(k) * sin)
|
140 |
+
return q_embed, k_embed
|
141 |
+
|
142 |
+
|
143 |
+
class XverseMLP(nn.Module):
|
144 |
+
def __init__(
|
145 |
+
self,
|
146 |
+
hidden_size: int,
|
147 |
+
intermediate_size: int,
|
148 |
+
hidden_act: str,
|
149 |
+
):
|
150 |
+
super().__init__()
|
151 |
+
self.gate_proj = nn.Linear(hidden_size, intermediate_size, bias=False)
|
152 |
+
self.down_proj = nn.Linear(intermediate_size, hidden_size, bias=False)
|
153 |
+
self.up_proj = nn.Linear(hidden_size, intermediate_size, bias=False)
|
154 |
+
self.act_fn = ACT2FN[hidden_act]
|
155 |
+
|
156 |
+
def forward(self, x):
|
157 |
+
return self.down_proj(self.act_fn(self.gate_proj(x)) * self.up_proj(x))
|
158 |
+
|
159 |
+
|
160 |
+
class XverseAttention(nn.Module):
|
161 |
+
"""Multi-headed attention from 'Attention Is All You Need' paper"""
|
162 |
+
|
163 |
+
def __init__(self, config: XverseConfig):
|
164 |
+
super().__init__()
|
165 |
+
self.config = config
|
166 |
+
self.hidden_size = config.hidden_size
|
167 |
+
self.num_heads = config.num_attention_heads
|
168 |
+
self.head_dim = self.hidden_size // self.num_heads
|
169 |
+
self.max_position_embeddings = config.max_position_embeddings
|
170 |
+
|
171 |
+
if (self.head_dim * self.num_heads) != self.hidden_size:
|
172 |
+
raise ValueError(
|
173 |
+
f"hidden_size must be divisible by num_heads (got `hidden_size`: {self.hidden_size}"
|
174 |
+
f" and `num_heads`: {self.num_heads})."
|
175 |
+
)
|
176 |
+
self.q_proj = nn.Linear(self.hidden_size, self.num_heads * self.head_dim, bias=False)
|
177 |
+
self.k_proj = nn.Linear(self.hidden_size, self.num_heads * self.head_dim, bias=False)
|
178 |
+
self.v_proj = nn.Linear(self.hidden_size, self.num_heads * self.head_dim, bias=False)
|
179 |
+
self.o_proj = nn.Linear(self.num_heads * self.head_dim, self.hidden_size, bias=False)
|
180 |
+
self.rotary_emb = XverseRotaryEmbedding(self.head_dim, max_position_embeddings=self.max_position_embeddings)
|
181 |
+
|
182 |
+
def _shape(self, tensor: torch.Tensor, seq_len: int, bsz: int):
|
183 |
+
return tensor.view(bsz, seq_len, self.num_heads, self.head_dim).transpose(1, 2).contiguous()
|
184 |
+
|
185 |
+
def forward(
|
186 |
+
self,
|
187 |
+
hidden_states: torch.Tensor,
|
188 |
+
attention_mask: Optional[torch.Tensor] = None,
|
189 |
+
position_ids: Optional[torch.LongTensor] = None,
|
190 |
+
past_key_value: Optional[Tuple[torch.Tensor]] = None,
|
191 |
+
output_attentions: bool = False,
|
192 |
+
use_cache: bool = False,
|
193 |
+
) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
|
194 |
+
bsz, q_len, _ = hidden_states.size()
|
195 |
+
|
196 |
+
query_states = self.q_proj(hidden_states).view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2)
|
197 |
+
key_states = self.k_proj(hidden_states).view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2)
|
198 |
+
value_states = self.v_proj(hidden_states).view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2)
|
199 |
+
|
200 |
+
kv_seq_len = key_states.shape[-2]
|
201 |
+
if past_key_value is not None:
|
202 |
+
kv_seq_len += past_key_value[0].shape[-2]
|
203 |
+
cos, sin = self.rotary_emb(value_states, seq_len=kv_seq_len)
|
204 |
+
query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids)
|
205 |
+
# [bsz, nh, t, hd]
|
206 |
+
|
207 |
+
if past_key_value is not None:
|
208 |
+
# reuse k, v, self_attention
|
209 |
+
key_states = torch.cat([past_key_value[0], key_states], dim=2)
|
210 |
+
value_states = torch.cat([past_key_value[1], value_states], dim=2)
|
211 |
+
|
212 |
+
past_key_value = (key_states, value_states) if use_cache else None
|
213 |
+
|
214 |
+
attn_weights = torch.matmul(query_states, key_states.transpose(2, 3)) / math.sqrt(self.head_dim)
|
215 |
+
|
216 |
+
if attn_weights.size() != (bsz, self.num_heads, q_len, kv_seq_len):
|
217 |
+
raise ValueError(
|
218 |
+
f"Attention weights should be of size {(bsz, self.num_heads, q_len, kv_seq_len)}, but is"
|
219 |
+
f" {attn_weights.size()}"
|
220 |
+
)
|
221 |
+
|
222 |
+
if attention_mask is not None:
|
223 |
+
if attention_mask.size() != (bsz, 1, q_len, kv_seq_len):
|
224 |
+
raise ValueError(
|
225 |
+
f"Attention mask should be of size {(bsz, 1, q_len, kv_seq_len)}, but is {attention_mask.size()}"
|
226 |
+
)
|
227 |
+
attn_weights = attn_weights + attention_mask
|
228 |
+
attn_weights = torch.max(
|
229 |
+
attn_weights, torch.tensor(torch.finfo(attn_weights.dtype).min, device=attn_weights.device)
|
230 |
+
)
|
231 |
+
|
232 |
+
# upcast attention to fp32
|
233 |
+
attn_weights = nn.functional.softmax(attn_weights, dim=-1, dtype=torch.float32).to(query_states.dtype)
|
234 |
+
attn_output = torch.matmul(attn_weights, value_states)
|
235 |
+
|
236 |
+
if attn_output.size() != (bsz, self.num_heads, q_len, self.head_dim):
|
237 |
+
raise ValueError(
|
238 |
+
f"`attn_output` should be of size {(bsz, self.num_heads, q_len, self.head_dim)}, but is"
|
239 |
+
f" {attn_output.size()}"
|
240 |
+
)
|
241 |
+
|
242 |
+
attn_output = attn_output.transpose(1, 2)
|
243 |
+
attn_output = attn_output.reshape(bsz, q_len, self.hidden_size)
|
244 |
+
|
245 |
+
attn_output = self.o_proj(attn_output)
|
246 |
+
|
247 |
+
if not output_attentions:
|
248 |
+
attn_weights = None
|
249 |
+
|
250 |
+
return attn_output, attn_weights, past_key_value
|
251 |
+
|
252 |
+
|
253 |
+
class XverseDecoderLayer(nn.Module):
|
254 |
+
def __init__(self, config: XverseConfig):
|
255 |
+
super().__init__()
|
256 |
+
self.hidden_size = config.hidden_size
|
257 |
+
self.self_attn = XverseAttention(config=config)
|
258 |
+
self.mlp = XverseMLP(
|
259 |
+
hidden_size=self.hidden_size,
|
260 |
+
intermediate_size=config.intermediate_size,
|
261 |
+
hidden_act=config.hidden_act,
|
262 |
+
)
|
263 |
+
self.input_layernorm = XverseRMSNorm(config.hidden_size, eps=config.rms_norm_eps)
|
264 |
+
self.post_attention_layernorm = XverseRMSNorm(config.hidden_size, eps=config.rms_norm_eps)
|
265 |
+
|
266 |
+
def forward(
|
267 |
+
self,
|
268 |
+
hidden_states: torch.Tensor,
|
269 |
+
attention_mask: Optional[torch.Tensor] = None,
|
270 |
+
position_ids: Optional[torch.LongTensor] = None,
|
271 |
+
past_key_value: Optional[Tuple[torch.Tensor]] = None,
|
272 |
+
output_attentions: Optional[bool] = False,
|
273 |
+
use_cache: Optional[bool] = False,
|
274 |
+
) -> Tuple[torch.FloatTensor, Optional[Tuple[torch.FloatTensor, torch.FloatTensor]]]:
|
275 |
+
"""
|
276 |
+
Args:
|
277 |
+
hidden_states (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)`
|
278 |
+
attention_mask (`torch.FloatTensor`, *optional*): attention mask of size
|
279 |
+
`(batch, 1, tgt_len, src_len)` where padding elements are indicated by very large negative values.
|
280 |
+
output_attentions (`bool`, *optional*):
|
281 |
+
Whether or not to return the attentions tensors of all attention layers. See `attentions` under
|
282 |
+
returned tensors for more detail.
|
283 |
+
use_cache (`bool`, *optional*):
|
284 |
+
If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding
|
285 |
+
(see `past_key_values`).
|
286 |
+
past_key_value (`Tuple(torch.FloatTensor)`, *optional*): cached past key and value projection states
|
287 |
+
"""
|
288 |
+
|
289 |
+
residual = hidden_states
|
290 |
+
|
291 |
+
hidden_states = self.input_layernorm(hidden_states)
|
292 |
+
|
293 |
+
# Self Attention
|
294 |
+
hidden_states, self_attn_weights, present_key_value = self.self_attn(
|
295 |
+
hidden_states=hidden_states,
|
296 |
+
attention_mask=attention_mask,
|
297 |
+
position_ids=position_ids,
|
298 |
+
past_key_value=past_key_value,
|
299 |
+
output_attentions=output_attentions,
|
300 |
+
use_cache=use_cache,
|
301 |
+
)
|
302 |
+
hidden_states = residual + hidden_states
|
303 |
+
|
304 |
+
# Fully Connected
|
305 |
+
residual = hidden_states
|
306 |
+
hidden_states = self.post_attention_layernorm(hidden_states)
|
307 |
+
hidden_states = self.mlp(hidden_states)
|
308 |
+
hidden_states = residual + hidden_states
|
309 |
+
|
310 |
+
outputs = (hidden_states,)
|
311 |
+
|
312 |
+
if output_attentions:
|
313 |
+
outputs += (self_attn_weights,)
|
314 |
+
|
315 |
+
if use_cache:
|
316 |
+
outputs += (present_key_value,)
|
317 |
+
|
318 |
+
return outputs
|
319 |
+
|
320 |
+
|
321 |
+
XVERSE_START_DOCSTRING = r"""
|
322 |
+
This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the
|
323 |
+
library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads
|
324 |
+
etc.)
|
325 |
+
|
326 |
+
This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass.
|
327 |
+
Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage
|
328 |
+
and behavior.
|
329 |
+
|
330 |
+
Parameters:
|
331 |
+
config ([`XverseConfig`]):
|
332 |
+
Model configuration class with all the parameters of the model. Initializing with a config file does not
|
333 |
+
load the weights associated with the model, only the configuration. Check out the
|
334 |
+
[`~PreTrainedModel.from_pretrained`] method to load the model weights.
|
335 |
+
"""
|
336 |
+
|
337 |
+
|
338 |
+
@add_start_docstrings(
|
339 |
+
"The bare Xverse Model outputting raw hidden-states without any specific head on top.",
|
340 |
+
XVERSE_START_DOCSTRING,
|
341 |
+
)
|
342 |
+
class XversePreTrainedModel(PreTrainedModel):
|
343 |
+
config_class = XverseConfig
|
344 |
+
base_model_prefix = "model"
|
345 |
+
supports_gradient_checkpointing = True
|
346 |
+
_no_split_modules = ["XverseDecoderLayer"]
|
347 |
+
_skip_keys_device_placement = "past_key_values"
|
348 |
+
_keys_to_ignore_on_load_unexpected = [r"decoder\.version"]
|
349 |
+
|
350 |
+
def _init_weights(self, module):
|
351 |
+
std = self.config.initializer_range
|
352 |
+
if isinstance(module, nn.Linear):
|
353 |
+
module.weight.data.normal_(mean=0.0, std=std)
|
354 |
+
if module.bias is not None:
|
355 |
+
module.bias.data.zero_()
|
356 |
+
elif isinstance(module, nn.Embedding):
|
357 |
+
module.weight.data.normal_(mean=0.0, std=std)
|
358 |
+
if module.padding_idx is not None:
|
359 |
+
module.weight.data[module.padding_idx].zero_()
|
360 |
+
|
361 |
+
def _set_gradient_checkpointing(self, module, value=False):
|
362 |
+
if isinstance(module, XverseModel):
|
363 |
+
module.gradient_checkpointing = value
|
364 |
+
|
365 |
+
|
366 |
+
XVERSE_INPUTS_DOCSTRING = r"""
|
367 |
+
Args:
|
368 |
+
input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`):
|
369 |
+
Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you provide
|
370 |
+
it.
|
371 |
+
|
372 |
+
Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
|
373 |
+
[`PreTrainedTokenizer.__call__`] for details.
|
374 |
+
|
375 |
+
[What are input IDs?](../glossary#input-ids)
|
376 |
+
attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*):
|
377 |
+
Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`:
|
378 |
+
|
379 |
+
- 1 for tokens that are **not masked**,
|
380 |
+
- 0 for tokens that are **masked**.
|
381 |
+
|
382 |
+
[What are attention masks?](../glossary#attention-mask)
|
383 |
+
|
384 |
+
Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and
|
385 |
+
[`PreTrainedTokenizer.__call__`] for details.
|
386 |
+
|
387 |
+
If `past_key_values` is used, optionally only the last `decoder_input_ids` have to be input (see
|
388 |
+
`past_key_values`).
|
389 |
+
|
390 |
+
If you want to change padding behavior, you should read [`modeling_opt._prepare_decoder_attention_mask`]
|
391 |
+
and modify to your needs. See diagram 1 in [the paper](https://arxiv.org/abs/1910.13461) for more
|
392 |
+
information on the default strategy.
|
393 |
+
|
394 |
+
- 1 indicates the head is **not masked**,
|
395 |
+
- 0 indicates the head is **masked**.
|
396 |
+
position_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
|
397 |
+
Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0,
|
398 |
+
config.n_positions - 1]`.
|
399 |
+
|
400 |
+
[What are position IDs?](../glossary#position-ids)
|
401 |
+
past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`):
|
402 |
+
Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of shape
|
403 |
+
`(batch_size, num_heads, sequence_length, embed_size_per_head)`) and 2 additional tensors of shape
|
404 |
+
`(batch_size, num_heads, encoder_sequence_length, embed_size_per_head)`.
|
405 |
+
|
406 |
+
Contains pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention
|
407 |
+
blocks) that can be used (see `past_key_values` input) to speed up sequential decoding.
|
408 |
+
|
409 |
+
If `past_key_values` are used, the user can optionally input only the last `decoder_input_ids` (those that
|
410 |
+
don't have their past key value states given to this model) of shape `(batch_size, 1)` instead of all
|
411 |
+
`decoder_input_ids` of shape `(batch_size, sequence_length)`.
|
412 |
+
inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*):
|
413 |
+
Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This
|
414 |
+
is useful if you want more control over how to convert `input_ids` indices into associated vectors than the
|
415 |
+
model's internal embedding lookup matrix.
|
416 |
+
use_cache (`bool`, *optional*):
|
417 |
+
If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see
|
418 |
+
`past_key_values`).
|
419 |
+
output_attentions (`bool`, *optional*):
|
420 |
+
Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned
|
421 |
+
tensors for more detail.
|
422 |
+
output_hidden_states (`bool`, *optional*):
|
423 |
+
Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for
|
424 |
+
more detail.
|
425 |
+
return_dict (`bool`, *optional*):
|
426 |
+
Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple.
|
427 |
+
"""
|
428 |
+
|
429 |
+
@add_start_docstrings(
|
430 |
+
"The bare Xverse Model outputting raw hidden-states without any specific head on top.",
|
431 |
+
XVERSE_START_DOCSTRING,
|
432 |
+
)
|
433 |
+
class XverseModel(XversePreTrainedModel):
|
434 |
+
"""
|
435 |
+
Transformer decoder consisting of *config.num_hidden_layers* layers. Each layer is a [`XverseDecoderLayer`]
|
436 |
+
|
437 |
+
Args:
|
438 |
+
config: XverseConfig
|
439 |
+
"""
|
440 |
+
|
441 |
+
def __init__(self, config: XverseConfig):
|
442 |
+
super().__init__(config)
|
443 |
+
self.padding_idx = config.pad_token_id
|
444 |
+
self.vocab_size = config.vocab_size
|
445 |
+
|
446 |
+
self.embed_tokens = nn.Embedding(config.vocab_size, config.hidden_size, self.padding_idx)
|
447 |
+
self.layers = nn.ModuleList([XverseDecoderLayer(config) for _ in range(config.num_hidden_layers)])
|
448 |
+
self.norm = XverseRMSNorm(config.hidden_size, eps=config.rms_norm_eps)
|
449 |
+
|
450 |
+
self.gradient_checkpointing = False
|
451 |
+
# Initialize weights and apply final processing
|
452 |
+
self.post_init()
|
453 |
+
|
454 |
+
def get_input_embeddings(self):
|
455 |
+
return self.embed_tokens
|
456 |
+
|
457 |
+
def set_input_embeddings(self, value):
|
458 |
+
self.embed_tokens = value
|
459 |
+
|
460 |
+
# Copied from transformers.models.bart.modeling_bart.BartDecoder._prepare_decoder_attention_mask
|
461 |
+
def _prepare_decoder_attention_mask(self, attention_mask, input_shape, inputs_embeds, past_key_values_length):
|
462 |
+
# create causal mask
|
463 |
+
# [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len]
|
464 |
+
combined_attention_mask = None
|
465 |
+
if input_shape[-1] > 1:
|
466 |
+
combined_attention_mask = _make_causal_mask(
|
467 |
+
input_shape,
|
468 |
+
inputs_embeds.dtype,
|
469 |
+
device=inputs_embeds.device,
|
470 |
+
past_key_values_length=past_key_values_length,
|
471 |
+
)
|
472 |
+
|
473 |
+
if attention_mask is not None:
|
474 |
+
# [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len]
|
475 |
+
expanded_attn_mask = _expand_mask(attention_mask, inputs_embeds.dtype, tgt_len=input_shape[-1]).to(
|
476 |
+
inputs_embeds.device
|
477 |
+
)
|
478 |
+
combined_attention_mask = (
|
479 |
+
expanded_attn_mask if combined_attention_mask is None else expanded_attn_mask + combined_attention_mask
|
480 |
+
)
|
481 |
+
|
482 |
+
return combined_attention_mask
|
483 |
+
|
484 |
+
@add_start_docstrings_to_model_forward(XVERSE_INPUTS_DOCSTRING)
|
485 |
+
def forward(
|
486 |
+
self,
|
487 |
+
input_ids: torch.LongTensor = None,
|
488 |
+
attention_mask: Optional[torch.Tensor] = None,
|
489 |
+
position_ids: Optional[torch.LongTensor] = None,
|
490 |
+
past_key_values: Optional[List[torch.FloatTensor]] = None,
|
491 |
+
inputs_embeds: Optional[torch.FloatTensor] = None,
|
492 |
+
use_cache: Optional[bool] = None,
|
493 |
+
output_attentions: Optional[bool] = None,
|
494 |
+
output_hidden_states: Optional[bool] = None,
|
495 |
+
return_dict: Optional[bool] = None,
|
496 |
+
) -> Union[Tuple, BaseModelOutputWithPast]:
|
497 |
+
output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
|
498 |
+
output_hidden_states = (
|
499 |
+
output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
|
500 |
+
)
|
501 |
+
use_cache = use_cache if use_cache is not None else self.config.use_cache
|
502 |
+
|
503 |
+
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
|
504 |
+
|
505 |
+
# retrieve input_ids and inputs_embeds
|
506 |
+
if input_ids is not None and inputs_embeds is not None:
|
507 |
+
raise ValueError("You cannot specify both decoder_input_ids and decoder_inputs_embeds at the same time")
|
508 |
+
elif input_ids is not None:
|
509 |
+
batch_size, seq_length = input_ids.shape
|
510 |
+
elif inputs_embeds is not None:
|
511 |
+
batch_size, seq_length, _ = inputs_embeds.shape
|
512 |
+
else:
|
513 |
+
raise ValueError("You have to specify either decoder_input_ids or decoder_inputs_embeds")
|
514 |
+
|
515 |
+
seq_length_with_past = seq_length
|
516 |
+
past_key_values_length = 0
|
517 |
+
|
518 |
+
if past_key_values is not None:
|
519 |
+
past_key_values_length = past_key_values[0][0].shape[2]
|
520 |
+
seq_length_with_past = seq_length_with_past + past_key_values_length
|
521 |
+
|
522 |
+
if position_ids is None:
|
523 |
+
device = input_ids.device if input_ids is not None else inputs_embeds.device
|
524 |
+
position_ids = torch.arange(
|
525 |
+
past_key_values_length, seq_length + past_key_values_length, dtype=torch.long, device=device
|
526 |
+
)
|
527 |
+
position_ids = position_ids.unsqueeze(0).view(-1, seq_length)
|
528 |
+
else:
|
529 |
+
position_ids = position_ids.view(-1, seq_length).long()
|
530 |
+
|
531 |
+
if inputs_embeds is None:
|
532 |
+
inputs_embeds = self.embed_tokens(input_ids)
|
533 |
+
# embed positions
|
534 |
+
if attention_mask is None:
|
535 |
+
attention_mask = torch.ones(
|
536 |
+
(batch_size, seq_length_with_past), dtype=torch.bool, device=inputs_embeds.device
|
537 |
+
)
|
538 |
+
attention_mask = self._prepare_decoder_attention_mask(
|
539 |
+
attention_mask, (batch_size, seq_length), inputs_embeds, past_key_values_length
|
540 |
+
)
|
541 |
+
|
542 |
+
hidden_states = inputs_embeds
|
543 |
+
|
544 |
+
if self.gradient_checkpointing and self.training:
|
545 |
+
if use_cache:
|
546 |
+
logger.warning_once(
|
547 |
+
"`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..."
|
548 |
+
)
|
549 |
+
use_cache = False
|
550 |
+
|
551 |
+
# decoder layers
|
552 |
+
all_hidden_states = () if output_hidden_states else None
|
553 |
+
all_self_attns = () if output_attentions else None
|
554 |
+
next_decoder_cache = () if use_cache else None
|
555 |
+
|
556 |
+
for idx, decoder_layer in enumerate(self.layers):
|
557 |
+
if output_hidden_states:
|
558 |
+
all_hidden_states += (hidden_states,)
|
559 |
+
|
560 |
+
past_key_value = past_key_values[idx] if past_key_values is not None else None
|
561 |
+
|
562 |
+
if self.gradient_checkpointing and self.training:
|
563 |
+
|
564 |
+
def create_custom_forward(module):
|
565 |
+
def custom_forward(*inputs):
|
566 |
+
# None for past_key_value
|
567 |
+
return module(*inputs, output_attentions, None)
|
568 |
+
|
569 |
+
return custom_forward
|
570 |
+
|
571 |
+
layer_outputs = torch.utils.checkpoint.checkpoint(
|
572 |
+
create_custom_forward(decoder_layer),
|
573 |
+
hidden_states,
|
574 |
+
attention_mask,
|
575 |
+
position_ids,
|
576 |
+
None,
|
577 |
+
)
|
578 |
+
else:
|
579 |
+
layer_outputs = decoder_layer(
|
580 |
+
hidden_states,
|
581 |
+
attention_mask=attention_mask,
|
582 |
+
position_ids=position_ids,
|
583 |
+
past_key_value=past_key_value,
|
584 |
+
output_attentions=output_attentions,
|
585 |
+
use_cache=use_cache,
|
586 |
+
)
|
587 |
+
|
588 |
+
hidden_states = layer_outputs[0]
|
589 |
+
|
590 |
+
if use_cache:
|
591 |
+
next_decoder_cache += (layer_outputs[2 if output_attentions else 1],)
|
592 |
+
|
593 |
+
if output_attentions:
|
594 |
+
all_self_attns += (layer_outputs[1],)
|
595 |
+
|
596 |
+
hidden_states = self.norm(hidden_states)
|
597 |
+
|
598 |
+
# add hidden states from the last decoder layer
|
599 |
+
if output_hidden_states:
|
600 |
+
all_hidden_states += (hidden_states,)
|
601 |
+
|
602 |
+
next_cache = next_decoder_cache if use_cache else None
|
603 |
+
if not return_dict:
|
604 |
+
return tuple(v for v in [hidden_states, next_cache, all_hidden_states, all_self_attns] if v is not None)
|
605 |
+
return BaseModelOutputWithPast(
|
606 |
+
last_hidden_state=hidden_states,
|
607 |
+
past_key_values=next_cache,
|
608 |
+
hidden_states=all_hidden_states,
|
609 |
+
attentions=all_self_attns,
|
610 |
+
)
|
611 |
+
|
612 |
+
|
613 |
+
class XverseForCausalLM(XversePreTrainedModel):
|
614 |
+
def __init__(self, config):
|
615 |
+
super().__init__(config)
|
616 |
+
self.model = XverseModel(config)
|
617 |
+
|
618 |
+
self.lm_head = nn.Linear(config.hidden_size, config.vocab_size, bias=False)
|
619 |
+
|
620 |
+
# Initialize weights and apply final processing
|
621 |
+
self.post_init()
|
622 |
+
|
623 |
+
def get_input_embeddings(self):
|
624 |
+
return self.model.embed_tokens
|
625 |
+
|
626 |
+
def set_input_embeddings(self, value):
|
627 |
+
self.model.embed_tokens = value
|
628 |
+
|
629 |
+
def get_output_embeddings(self):
|
630 |
+
return self.lm_head
|
631 |
+
|
632 |
+
def set_output_embeddings(self, new_embeddings):
|
633 |
+
self.lm_head = new_embeddings
|
634 |
+
|
635 |
+
def set_decoder(self, decoder):
|
636 |
+
self.model = decoder
|
637 |
+
|
638 |
+
def get_decoder(self):
|
639 |
+
return self.model
|
640 |
+
|
641 |
+
@add_start_docstrings_to_model_forward(XVERSE_INPUTS_DOCSTRING)
|
642 |
+
@replace_return_docstrings(output_type=CausalLMOutputWithPast, config_class=_CONFIG_FOR_DOC)
|
643 |
+
def forward(
|
644 |
+
self,
|
645 |
+
input_ids: torch.LongTensor = None,
|
646 |
+
attention_mask: Optional[torch.Tensor] = None,
|
647 |
+
position_ids: Optional[torch.LongTensor] = None,
|
648 |
+
past_key_values: Optional[List[torch.FloatTensor]] = None,
|
649 |
+
inputs_embeds: Optional[torch.FloatTensor] = None,
|
650 |
+
labels: Optional[torch.LongTensor] = None,
|
651 |
+
use_cache: Optional[bool] = None,
|
652 |
+
output_attentions: Optional[bool] = None,
|
653 |
+
output_hidden_states: Optional[bool] = None,
|
654 |
+
return_dict: Optional[bool] = None,
|
655 |
+
) -> Union[Tuple, CausalLMOutputWithPast]:
|
656 |
+
r"""
|
657 |
+
Args:
|
658 |
+
labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*):
|
659 |
+
Labels for computing the masked language modeling loss. Indices should either be in `[0, ...,
|
660 |
+
config.vocab_size]` or -100 (see `input_ids` docstring). Tokens with indices set to `-100` are ignored
|
661 |
+
(masked), the loss is only computed for the tokens with labels in `[0, ..., config.vocab_size]`.
|
662 |
+
|
663 |
+
Returns:
|
664 |
+
|
665 |
+
Example:
|
666 |
+
|
667 |
+
```python
|
668 |
+
>>> from transformers import AutoTokenizer, AutoModelForCausalLM
|
669 |
+
|
670 |
+
>>> model = AutoModelForCausalLM.from_pretrained(PATH_TO_CONVERTED_WEIGHTS, trust_remote_code=True)
|
671 |
+
>>> tokenizer = AutoTokenizer.from_pretrained(PATH_TO_CONVERTED_TOKENIZER)
|
672 |
+
|
673 |
+
>>> prompt = "Hey, are you conscious? Can you talk to me?"
|
674 |
+
>>> inputs = tokenizer(prompt, return_tensors="pt")
|
675 |
+
|
676 |
+
>>> # Generate
|
677 |
+
>>> generate_ids = model.generate(inputs.input_ids, max_length=30)
|
678 |
+
>>> tokenizer.batch_decode(generate_ids, skip_special_tokens=True, clean_up_tokenization_spaces=False)[0]
|
679 |
+
"Hey, are you conscious? Can you talk to me?\nI'm not conscious, but I can talk to you."
|
680 |
+
```"""
|
681 |
+
|
682 |
+
output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
|
683 |
+
output_hidden_states = (
|
684 |
+
output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
|
685 |
+
)
|
686 |
+
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
|
687 |
+
|
688 |
+
# decoder outputs consists of (dec_features, layer_state, dec_hidden, dec_attn)
|
689 |
+
outputs = self.model(
|
690 |
+
input_ids=input_ids,
|
691 |
+
attention_mask=attention_mask,
|
692 |
+
position_ids=position_ids,
|
693 |
+
past_key_values=past_key_values,
|
694 |
+
inputs_embeds=inputs_embeds,
|
695 |
+
use_cache=use_cache,
|
696 |
+
output_attentions=output_attentions,
|
697 |
+
output_hidden_states=output_hidden_states,
|
698 |
+
return_dict=return_dict,
|
699 |
+
)
|
700 |
+
|
701 |
+
hidden_states = outputs[0]
|
702 |
+
logits = self.lm_head(hidden_states)
|
703 |
+
|
704 |
+
loss = None
|
705 |
+
if labels is not None:
|
706 |
+
# Shift so that tokens < n predict n
|
707 |
+
shift_logits = logits[..., :-1, :].contiguous()
|
708 |
+
shift_labels = labels[..., 1:].contiguous()
|
709 |
+
# Flatten the tokens
|
710 |
+
loss_fct = CrossEntropyLoss()
|
711 |
+
shift_logits = shift_logits.view(-1, self.config.vocab_size)
|
712 |
+
shift_labels = shift_labels.view(-1)
|
713 |
+
# Enable model parallelism
|
714 |
+
shift_labels = shift_labels.to(shift_logits.device)
|
715 |
+
loss = loss_fct(shift_logits, shift_labels)
|
716 |
+
|
717 |
+
if not return_dict:
|
718 |
+
output = (logits,) + outputs[1:]
|
719 |
+
return (loss,) + output if loss is not None else output
|
720 |
+
|
721 |
+
return CausalLMOutputWithPast(
|
722 |
+
loss=loss,
|
723 |
+
logits=logits,
|
724 |
+
past_key_values=outputs.past_key_values,
|
725 |
+
hidden_states=outputs.hidden_states,
|
726 |
+
attentions=outputs.attentions,
|
727 |
+
)
|
728 |
+
|
729 |
+
def _build_chat_input(self, tokenizer, messages: List[dict], max_new_tokens: int=2048):
|
730 |
+
max_new_tokens = max_new_tokens or self.generation_config.max_new_tokens
|
731 |
+
max_input_tokens = self.config.max_position_embeddings - max_new_tokens
|
732 |
+
max_input_tokens = max(self.config.max_position_embeddings // 2, max_input_tokens)
|
733 |
+
max_input_tokens = min(self.config.max_tokenizer_truncation, max_input_tokens)
|
734 |
+
|
735 |
+
total_input, round_input = [], []
|
736 |
+
user_prompt_tokens = tokenizer.encode("Human: ", return_token_type_ids=False)
|
737 |
+
assist_prompt_tokens = tokenizer.encode("Assistant: ", return_token_type_ids=False)
|
738 |
+
assist_prompt_len = len(assist_prompt_tokens)
|
739 |
+
|
740 |
+
for i, message in enumerate(messages[::-1]):
|
741 |
+
if message['role'] == 'user':
|
742 |
+
user_content = f"{message['content']}\n\n"
|
743 |
+
content_tokens = user_prompt_tokens + tokenizer.encode(user_content, return_token_type_ids=False)
|
744 |
+
if i == 0:
|
745 |
+
content_tokens = content_tokens[:max_input_tokens-assist_prompt_len]
|
746 |
+
content_tokens += assist_prompt_tokens
|
747 |
+
round_input = content_tokens + round_input
|
748 |
+
|
749 |
+
if i != 0:
|
750 |
+
if len(total_input) + len(round_input) > max_input_tokens:
|
751 |
+
break
|
752 |
+
else:
|
753 |
+
total_input = round_input + total_input
|
754 |
+
else:
|
755 |
+
total_input = round_input + total_input
|
756 |
+
if len(total_input) >= max_input_tokens:
|
757 |
+
break
|
758 |
+
round_input = []
|
759 |
+
elif message['role'] == 'assistant':
|
760 |
+
assist_content = f"{message['content']}"
|
761 |
+
content_tokens = assist_prompt_tokens + tokenizer.encode(assist_content, return_token_type_ids=False)
|
762 |
+
round_input = content_tokens + [self.generation_config.eos_token_id] + round_input
|
763 |
+
else:
|
764 |
+
raise ValueError(f"message role not supported yet: {message['role']}")
|
765 |
+
total_input = torch.LongTensor([total_input]).to(self.device)
|
766 |
+
return total_input
|
767 |
+
|
768 |
+
@torch.no_grad()
|
769 |
+
def chat(self, tokenizer, messages: List[dict], stream=False,
|
770 |
+
generation_config: Optional[GenerationConfig]=None):
|
771 |
+
generation_config = generation_config or self.generation_config
|
772 |
+
input_ids = self._build_chat_input(tokenizer, messages, generation_config.max_new_tokens)
|
773 |
+
if stream:
|
774 |
+
from transformers import TextIteratorStreamer
|
775 |
+
from threading import Thread
|
776 |
+
streamer = TextIteratorStreamer(tokenizer, skip_prompt=True)
|
777 |
+
self.__class__.generate = PreTrainedModel.generate
|
778 |
+
|
779 |
+
def stream_generator():
|
780 |
+
generation_kwargs = dict(inputs=input_ids, generation_config=generation_config, streamer=streamer)
|
781 |
+
thread = Thread(target=self.generate, kwargs=generation_kwargs)
|
782 |
+
thread.start()
|
783 |
+
for next_text in streamer:
|
784 |
+
yield next_text.replace(tokenizer.eos_token, "")
|
785 |
+
|
786 |
+
return stream_generator()
|
787 |
+
else:
|
788 |
+
self.__class__.generate = PreTrainedModel.generate # disable stream
|
789 |
+
outputs = self.generate(input_ids, generation_config=generation_config)
|
790 |
+
response = tokenizer.decode(outputs[0][len(input_ids[0]):], skip_special_tokens=True)
|
791 |
+
return response
|
792 |
+
|
793 |
+
def prepare_inputs_for_generation(
|
794 |
+
self, input_ids, past_key_values=None, attention_mask=None, inputs_embeds=None, **kwargs
|
795 |
+
):
|
796 |
+
if past_key_values:
|
797 |
+
input_ids = input_ids[:, -1:]
|
798 |
+
|
799 |
+
position_ids = kwargs.get("position_ids", None)
|
800 |
+
if attention_mask is not None and position_ids is None:
|
801 |
+
# create position_ids on the fly for batch generation
|
802 |
+
position_ids = attention_mask.long().cumsum(-1) - 1
|
803 |
+
position_ids.masked_fill_(attention_mask == 0, 1)
|
804 |
+
if past_key_values:
|
805 |
+
position_ids = position_ids[:, -1].unsqueeze(-1)
|
806 |
+
|
807 |
+
# if `inputs_embeds` are passed, we only want to use them in the 1st generation step
|
808 |
+
if inputs_embeds is not None and past_key_values is None:
|
809 |
+
model_inputs = {"inputs_embeds": inputs_embeds}
|
810 |
+
else:
|
811 |
+
model_inputs = {"input_ids": input_ids}
|
812 |
+
|
813 |
+
model_inputs.update(
|
814 |
+
{
|
815 |
+
"position_ids": position_ids,
|
816 |
+
"past_key_values": past_key_values,
|
817 |
+
"use_cache": kwargs.get("use_cache"),
|
818 |
+
"attention_mask": attention_mask,
|
819 |
+
}
|
820 |
+
)
|
821 |
+
return model_inputs
|
822 |
+
|
823 |
+
@staticmethod
|
824 |
+
def _reorder_cache(past_key_values, beam_idx):
|
825 |
+
reordered_past = ()
|
826 |
+
for layer_past in past_key_values:
|
827 |
+
reordered_past += (tuple(past_state.index_select(0, beam_idx) for past_state in layer_past),)
|
828 |
+
return reordered_past
|
829 |
+
|
830 |
+
def quantize(self, bit_length: int):
|
831 |
+
from .quantization import QuantizationLinear
|
832 |
+
|
833 |
+
for layer in self.model.layers:
|
834 |
+
layer.self_attn.q_proj = QuantizationLinear(
|
835 |
+
bit_length=bit_length,
|
836 |
+
weight=layer.self_attn.q_proj.weight.to(torch.cuda.current_device()),
|
837 |
+
device=layer.self_attn.q_proj.weight.device,
|
838 |
+
)
|
839 |
+
layer.self_attn.k_proj = QuantizationLinear(
|
840 |
+
bit_length=bit_length,
|
841 |
+
weight=layer.self_attn.k_proj.weight.to(torch.cuda.current_device()),
|
842 |
+
device=layer.self_attn.k_proj.weight.device
|
843 |
+
)
|
844 |
+
layer.self_attn.v_proj = QuantizationLinear(
|
845 |
+
bit_length=bit_length,
|
846 |
+
weight=layer.self_attn.v_proj.weight.to(torch.cuda.current_device()),
|
847 |
+
device=layer.self_attn.v_proj.weight.device
|
848 |
+
)
|
849 |
+
layer.self_attn.o_proj = QuantizationLinear(
|
850 |
+
bit_length=bit_length,
|
851 |
+
weight=layer.self_attn.o_proj.weight.to(torch.cuda.current_device()),
|
852 |
+
device=layer.self_attn.o_proj.weight.device
|
853 |
+
)
|
854 |
+
layer.mlp.gate_proj = QuantizationLinear(
|
855 |
+
bit_length=bit_length,
|
856 |
+
weight=layer.mlp.gate_proj.weight.to(torch.cuda.current_device()),
|
857 |
+
device=layer.mlp.gate_proj.weight.device
|
858 |
+
)
|
859 |
+
layer.mlp.down_proj = QuantizationLinear(
|
860 |
+
bit_length=bit_length,
|
861 |
+
weight=layer.mlp.down_proj.weight.to(torch.cuda.current_device()),
|
862 |
+
device=layer.mlp.down_proj.weight.device
|
863 |
+
)
|
864 |
+
layer.mlp.up_proj = QuantizationLinear(
|
865 |
+
bit_length=bit_length,
|
866 |
+
weight=layer.mlp.up_proj.weight.to(torch.cuda.current_device()),
|
867 |
+
device=layer.mlp.up_proj.weight.device
|
868 |
+
)
|
869 |
+
|
870 |
+
return self
|
quantization.py
ADDED
@@ -0,0 +1,124 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
import bz2
|
2 |
+
import torch
|
3 |
+
import base64
|
4 |
+
import ctypes
|
5 |
+
from transformers.utils import logging
|
6 |
+
from typing import List
|
7 |
+
|
8 |
+
logger = logging.get_logger(__name__)
|
9 |
+
|
10 |
+
try:
|
11 |
+
from cpm_kernels.kernels.base import LazyKernelCModule, KernelFunction, round_up
|
12 |
+
|
13 |
+
class Kernel:
|
14 |
+
def __init__(self, code: bytes, function_names: List[str]):
|
15 |
+
self.code = code
|
16 |
+
self._function_names = function_names
|
17 |
+
self._cmodule = LazyKernelCModule(self.code)
|
18 |
+
|
19 |
+
for name in self._function_names:
|
20 |
+
setattr(self, name, KernelFunction(self._cmodule, name))
|
21 |
+
|
22 |
+
quantization_code = "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"
|
23 |
+
|
24 |
+
kernels = Kernel(
|
25 |
+
bz2.decompress(base64.b64decode(quantization_code)),
|
26 |
+
[
|
27 |
+
"weightInt8_int4",
|
28 |
+
"weightInt4_fp16",
|
29 |
+
"weightInt4_bf16"
|
30 |
+
],
|
31 |
+
)
|
32 |
+
except Exception as exception:
|
33 |
+
kernels = None
|
34 |
+
logger.warning("Failed to load cpm_kernels:" + str(exception))
|
35 |
+
|
36 |
+
|
37 |
+
def quantize_int8(weight: torch.Tensor, bit_length: int):
|
38 |
+
weight_scale = weight.abs().max(dim=-1).values / ((2 ** (bit_length - 1)) - 1)
|
39 |
+
weight_scale = weight_scale.to(torch.float32)
|
40 |
+
|
41 |
+
weight = torch.round(weight.to(weight_scale.dtype) / weight_scale[:, None]).to(torch.int8)
|
42 |
+
return weight, weight_scale
|
43 |
+
|
44 |
+
|
45 |
+
def compress_int4_weight(weight: torch.Tensor):
|
46 |
+
with torch.cuda.device(weight.device):
|
47 |
+
num_row, num_chan = weight.size(0), weight.size(1)
|
48 |
+
num_chan = num_chan // 2
|
49 |
+
|
50 |
+
int8_weight = torch.empty(num_row, num_chan, dtype=torch.int8, device="cuda")
|
51 |
+
stream = torch.cuda.current_stream()
|
52 |
+
dim_grid = (num_row, 1, 1)
|
53 |
+
dim_block = (min(round_up(num_chan, 32), 1024), 1, 1)
|
54 |
+
|
55 |
+
kernels.weightInt8_int4(
|
56 |
+
dim_grid,
|
57 |
+
dim_block,
|
58 |
+
0,
|
59 |
+
stream,
|
60 |
+
[
|
61 |
+
ctypes.c_void_p(weight.data_ptr()),
|
62 |
+
ctypes.c_void_p(int8_weight.data_ptr()),
|
63 |
+
ctypes.c_int32(num_row),
|
64 |
+
ctypes.c_int32(num_chan)
|
65 |
+
],
|
66 |
+
)
|
67 |
+
|
68 |
+
return int8_weight
|
69 |
+
|
70 |
+
|
71 |
+
def dequantize_float(weight: torch.Tensor, weight_scale: torch.Tensor, bit_length: int, input: torch.Tensor):
|
72 |
+
if bit_length == 8:
|
73 |
+
float_weight = weight.to(input.dtype) * weight_scale.to(input.dtype)[:, None]
|
74 |
+
return float_weight
|
75 |
+
|
76 |
+
assert bit_length == 4, f"unsupported bit length: {bit_length}"
|
77 |
+
|
78 |
+
func = (
|
79 |
+
kernels.weightInt4_fp16 if input.dtype == torch.half else kernels.weightInt4_bf16
|
80 |
+
)
|
81 |
+
with torch.cuda.device(weight.device):
|
82 |
+
num_row, num_chan = weight.size(0), weight.size(1)
|
83 |
+
|
84 |
+
float_weight = torch.empty(num_row, num_chan * 2, dtype=input.dtype, device="cuda")
|
85 |
+
stream = torch.cuda.current_stream()
|
86 |
+
dim_grid = (num_row, 1, 1)
|
87 |
+
dim_block = (min(round_up(num_chan, 32), 1024), 1, 1)
|
88 |
+
|
89 |
+
func(
|
90 |
+
dim_grid,
|
91 |
+
dim_block,
|
92 |
+
0,
|
93 |
+
stream,
|
94 |
+
[
|
95 |
+
ctypes.c_void_p(weight.data_ptr()),
|
96 |
+
ctypes.c_void_p(weight_scale.data_ptr()),
|
97 |
+
ctypes.c_void_p(float_weight.data_ptr()),
|
98 |
+
ctypes.c_int32(num_row),
|
99 |
+
ctypes.c_int32(num_chan),
|
100 |
+
],
|
101 |
+
)
|
102 |
+
return float_weight
|
103 |
+
|
104 |
+
class QuantizationLinear(torch.nn.Module):
|
105 |
+
def __init__(self, bit_length: int, weight: torch.Tensor, device="cuda"):
|
106 |
+
super().__init__()
|
107 |
+
|
108 |
+
self.bit_length = bit_length
|
109 |
+
|
110 |
+
weight, weight_scale = quantize_int8(weight=weight, bit_length=bit_length)
|
111 |
+
if bit_length == 4:
|
112 |
+
weight = compress_int4_weight(weight)
|
113 |
+
|
114 |
+
self.weight = torch.nn.Parameter(weight.to(device), requires_grad=False)
|
115 |
+
self.weight_scale = torch.nn.Parameter(weight_scale.to(device), requires_grad=False)
|
116 |
+
|
117 |
+
def forward(self, input: torch.Tensor):
|
118 |
+
input_size = input.size()
|
119 |
+
|
120 |
+
input = input.contiguous().view(-1, input.size(-1))
|
121 |
+
original_weight = dequantize_float(self.weight, self.weight_scale, self.bit_length, input)
|
122 |
+
|
123 |
+
output = torch.matmul(input, original_weight.t())
|
124 |
+
return output.view(*(input_size[:-1] + (self.weight.size(0),)))
|
special_tokens_map.json
ADDED
@@ -0,0 +1,23 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
{
|
2 |
+
"bos_token": {
|
3 |
+
"content": "<|startoftext|>",
|
4 |
+
"lstrip": false,
|
5 |
+
"normalized": false,
|
6 |
+
"rstrip": false,
|
7 |
+
"single_word": false
|
8 |
+
},
|
9 |
+
"eos_token": {
|
10 |
+
"content": "<|endoftext|>",
|
11 |
+
"lstrip": false,
|
12 |
+
"normalized": false,
|
13 |
+
"rstrip": false,
|
14 |
+
"single_word": false
|
15 |
+
},
|
16 |
+
"pad_token": {
|
17 |
+
"content": "<pad>",
|
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_config.json
ADDED
@@ -0,0 +1,5 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
+
{
|
2 |
+
"clean_up_tokenization_spaces": true,
|
3 |
+
"model_max_length": 1000000000000000019884624838656,
|
4 |
+
"tokenizer_class": "PreTrainedTokenizerFast"
|
5 |
+
}
|