[2025.06.10] adjust directory structure

This commit is contained in:
coffee
2025-06-10 14:04:57 +08:00
parent ef2f7a1bc5
commit c6e171e8ed
29 changed files with 0 additions and 0 deletions
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from transformers import AutoModelForCausalLM, AutoTokenizer
model_name = ""
tokenizer = AutoTokenizer.from_pretrained(model_name)
model = AutoModelForCausalLM.from_pretrained(
model_name,
torch_dtype="auto",
device_map="auto"
)
prompt = "Give me a short introduction to large language model."
messages = [
{"role": "user", "content": prompt}
]
text = tokenizer.apply_chat_template(
messages,
tokenize=False,
add_generation_prompt=True,
enable_thinking=True
)
model_inputs = tokenizer([text], return_tensors="pt").to(model.device)
generated_ids = model.generate(
**model_inputs,
max_new_tokens=32768
)
output_ids = generated_ids[0][len(model_inputs.input_ids[0]):].tolist()
try:
index = len(output_ids) - output_ids[::-1].index(151668)
except ValueError:
index = 0
thinking_content = tokenizer.decode(output_ids[:index], skip_special_tokens=True).strip("\n")
content = tokenizer.decode(output_ids[index:], skip_special_tokens=True).strip("\n")
print("thinking content:", thinking_content)
print("content:", content)
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from .configuration_dolly import DollyConfig
from .modeling_dolly import DollyModel, DollyPreTrainedModel
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from transformers import PretrainedConfig
from transformers import logging
logger = logging.get_logger(__name__)
class DollyConfig(PretrainedConfig):
model_type = "dolly"
keys_to_ignore_at_inference = ["past_key_values"]
# 添加张量并行配置
base_model_tp_plan = {
"layers.*.self_attn.q_proj": "colwise", # self-attention 的查询投影使用列并行
"layers.*.self_attn.k_proj": "colwise", # self-attention 的键投影使用列并行
"layers.*.self_attn.v_proj": "colwise", # self-attention 的值投影使用列并行
"layers.*.self_attn.o_proj": "rowwise", # self-attention 的输出投影使用行并行
"layers.*.mlp.gate_proj": "colwise", # MLP 的门投影使用列并行
"layers.*.mlp.up_proj": "colwise", # MLP 的上升投影使用列并行
"layers.*.mlp.down_proj": "rowwise", # MLP 的下降投影使用行并行
}
# 添加模型并行配置
base_model_pp_plan = {
"embed_tokens": (["input_ids"], ["inputs_embeds"]), # 输入 ID 使用 embed_tokens 层生成嵌入
"layers": (["hidden_states", "attention_mask"], ["hidden_states"]), # layers 层的输入输出
"norm": (["hidden_states"], ["hidden_states"]), # 标准化层的输入输出
}
def __init__(
self,
vocab_size=151936,
hidden_size=1024,
intermediate_size=3072,
num_hidden_layers=28,
num_attention_heads=16,
num_key_value_heads=8,
head_dim=128,
hidden_act="silu",
max_position_embeddings=32768,
initializer_range=0.02,
rms_norm_eps=1e-6,
use_cache=True,
tie_word_embeddings=False,
rope_theta=1000000.0,
rope_scaling=None,
attention_bias=False,
use_sliding_window=False,
sliding_window=4096,
max_window_layers=28,
attention_dropout=0.0,
**kwargs,
):
self.vocab_size = vocab_size
self.max_position_embeddings = max_position_embeddings
self.hidden_size = hidden_size
self.intermediate_size = intermediate_size
self.num_hidden_layers = num_hidden_layers
self.num_attention_heads = num_attention_heads
self.use_sliding_window = use_sliding_window
self.sliding_window = sliding_window # we check `use_sliding_window` in the modeling code
self.max_window_layers = max_window_layers
# for backward compatibility
if num_key_value_heads is None:
num_key_value_heads = num_attention_heads
self.num_key_value_heads = num_key_value_heads
self.head_dim = head_dim
self.hidden_act = hidden_act
self.initializer_range = initializer_range
self.rms_norm_eps = rms_norm_eps
self.use_cache = use_cache
self.rope_theta = rope_theta
self.rope_scaling = rope_scaling
self.attention_bias = attention_bias
self.attention_dropout = attention_dropout
# Validate the correctness of rotary position embeddings parameters
# BC: if there is a 'type' field, move it to 'rope_type'.
if self.rope_scaling is not None and "type" in self.rope_scaling:
self.rope_scaling["rope_type"] = self.rope_scaling["type"]
super().__init__(
tie_word_embeddings=tie_word_embeddings,
**kwargs,
)
__all__ = ["DollyConfig"]
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from .configuration_dolly import DollyConfig
from transformers.modeling_utils import PreTrainedModel, ALL_ATTENTION_FUNCTIONS
from functools import partial
from typing import Callable, Optional, Tuple, Union
from transformers.activations import ACT2FN
from transformers.modeling_rope_utils import dynamic_rope_update, ROPE_INIT_FUNCTIONS
import torch
from torch import nn
from transformers.utils import can_return_tuple
from transformers.generation import GenerationMixin
from transformers.modeling_attn_mask_utils import AttentionMaskConverter
from transformers.modeling_flash_attention_utils import FlashAttentionKwargs
from transformers.utils.deprecation import deprecate_kwarg
from transformers.utils import logging,LossKwargs,add_code_sample_docstrings,add_start_docstrings, add_start_docstrings_to_model_forward
from transformers.processing_utils import Unpack
from transformers.modeling_outputs import BaseModelOutputWithPast, CausalLMOutputWithPast,QuestionAnsweringModelOutput, SequenceClassifierOutputWithPast, TokenClassifierOutput
from transformers.cache_utils import Cache, DynamicCache, SlidingWindowCache, StaticCache
logger = logging.get_logger(__name__)
class DollyRMSNorm(nn.Module):
'''
输入的形状为batch_size*heads*seq_len*heads_dim,
仅在最后一个维度进行归一化,
参数量为heads_dim
'''
def __init__(self, hidden_size, eps=1e-6):
super().__init__()
self.weight = nn.Parameter(torch.ones(hidden_size))
#添加一个非零值,防止除零
self.variance_epsilon = eps
def forward(self, hidden_states):
input_dtype = hidden_states.dtype
hidden_states = hidden_states.to(torch.float32)
#x=(x^2)/n
variance = hidden_states.pow(2).mean(-1, keepdim=True)
#归一化并缩放
hidden_states = (hidden_states * torch.rsqrt(variance + self.variance_epsilon)) * self.weight
return hidden_states.to(input_dtype)
def extra_repr(self):
return f"{tuple(self.weight.shape)}, eps={self.variance_epsilon}"
class DollyMLP(nn.Module):
'''
DollyMLP层的实现, code from Qwen3
可训练参数量为: hidden_size * intermediate_size + hidden_size * intermediate_size + intermediate_size * hidden_size
'''
#只传入需要的三个参数
def __init__(self, hidden_size,intermediate_size,hidden_act):
super().__init__()
self.hidden_size = hidden_size
self.intermediate_size = intermediate_size
#可训练参数量 hidden_size * intermediate_size
self.gate_proj = nn.Linear(self.hidden_size, self.intermediate_size, bias=False)
#可训练参数量 hidden_size * intermediate_size
self.up_proj = nn.Linear(self.hidden_size, self.intermediate_size, bias=False)
#可训练参数量 intermediate_size * hidden_size
self.down_proj = nn.Linear(self.intermediate_size, self.hidden_size, bias=False)
#默认激活函数SiLU,=Sigmoid*x,输出范围(0, ∞)
self.act_fn = ACT2FN[hidden_act]
def forward(self, x):
#通过激活函数后的向量[batch_size*seq_len*intermediate_size]和扩展后的向量进行元素乘
down_proj = self.down_proj(self.act_fn(self.gate_proj(x)) * self.up_proj(x))
return down_proj
class DollyRotaryEmbedding(nn.Module):
def __init__(self, config: DollyConfig, device=None):
super().__init__()
#获取"rope_type"的值,如果没有使用"default"
self.config = config
if hasattr(config, "rope_scaling") and config.rope_scaling is not None:
self.rope_type = config.rope_scaling.get("rope_type", config.rope_scaling.get("type"))
else:
self.rope_type = "default"
# self.rope_type = getattr(config, "rope_type", "default")
self.original_max_seq_len = config.max_position_embeddings
self.rope_init_fn = ROPE_INIT_FUNCTIONS[self.rope_type]
#得到频率倒数,基础版本公式如下:
#inv_freq = 1.0 / (rope_theta ** (torch.arange(0, dim, 2) / dim))
#得到一个长度为attention_dim/2的小数序列,如attention_dim=128,inv_freq=64
inv_freq, self.attention_scaling = self.rope_init_fn(self.config, device)
#注册缓存区
self.register_buffer("inv_freq", inv_freq, persistent=False)
@torch.no_grad()
@dynamic_rope_update
def forward(self, x, position_ids):
#将inv_freq进行维度扩展首先扩展为1*64*1,然后扩展为batch_size*64*1
inv_freq_expanded = self.inv_freq[None, :, None].float().expand(position_ids.shape[0], -1, 1).to(x.device)
#position_ids进行扩展batch_size* 1*seq_len
position_ids_expanded = position_ids[:, None, :].float()
device_type = x.device.type if isinstance(x.device.type, str) and x.device.type != "mps" else "cpu"
#强制float32,禁止混合精度
with torch.autocast(device_type=device_type, enabled=False):
#矩阵乘以后,形状变为batch_size*64*seq_len后,再转为batch_size*seq_len*64
freqs = (inv_freq_expanded.float() @ position_ids_expanded.float()).transpose(1, 2)
#沿64的维度进行拼接batch_size*seq_len*128
emb = torch.cat((freqs, freqs), dim=-1)
#emb的cos()部分乘缩放系数:batch_size*seq_len*128
cos = emb.cos() * self.attention_scaling
#emb的sin()部分乘缩放系数:batch_size*seq_len*128
sin = emb.sin() * self.attention_scaling
return cos.to(dtype=x.dtype), sin.to(dtype=x.dtype)
def rotate_half(x):
#x分为两段,各取batch_size*heads_num*seq_len*64
x1 = x[..., : x.shape[-1] // 2]
x2 = x[..., x.shape[-1] // 2 :]
#下部分*-1,按下+上重新组合x
return torch.cat((-x2, x1), dim=-1)
def apply_rotary_pos_emb(q, k, cos, sin, unsqueeze_dim=1):
'''
对q和k分别使用RoPE
'''
#由batch_size*seq_len*128增加一个维度变为batch_size*1*seq_len*128
cos = cos.unsqueeze(unsqueeze_dim)
sin = sin.unsqueeze(unsqueeze_dim)
#q:batch_size*heads_num*seq_len*128和sin及con进行元素乘batch_size*1*seq_len*128
#cos部分直接乘,sin部分进行位置变化后再乘,最后相加完成位置编码的嵌入
q_embed = (q * cos) + (rotate_half(q) * sin)
k_embed = (k * cos) + (rotate_half(k) * sin)
return q_embed, k_embed
def repeat_kv(hidden_states: torch.Tensor, n_rep: int) -> torch.Tensor:
'''
在GQA中, k和v的heads数量小于q的heads数量,
所以在进行attention计算前需要进行repeat_kv操作,
保持第2维度的数量相等,n=config.num_attention_heads // config.num_key_value_heads
'''
#GQA中num_key_value_heads的数量小于attention heads数量
batch, num_key_value_heads, slen, head_dim = hidden_states.shape
if n_rep == 1:
return hidden_states
#在第3维度[index=2]进行扩充
hidden_states = hidden_states[:, :, None, :, :].expand(batch, num_key_value_heads, n_rep, slen, head_dim)
return hidden_states.reshape(batch, num_key_value_heads * n_rep, slen, head_dim)
def eager_attention_forward(
module: nn.Module,
query: torch.Tensor,
key: torch.Tensor,
value: torch.Tensor,
attention_mask: Optional[torch.Tensor],
scaling: float,
dropout: float = 0.0,
**kwargs,
):
#repeat kv,确保形状和query一致
key_states = repeat_kv(key, module.num_key_value_groups)
value_states = repeat_kv(value, module.num_key_value_groups)
#计算attention score
attn_weights = torch.matmul(query, key_states.transpose(2, 3)) * scaling
#casual attention
if attention_mask is not None:
#causal_mask应当为下三角为0,上三角为负无穷
causal_mask = attention_mask[:, :, :, : key_states.shape[-2]]
attn_weights = attn_weights + causal_mask
# sofmax计算
attn_weights = nn.functional.softmax(attn_weights, dim=-1, dtype=torch.float32).to(query.dtype)
# 训练时给attn_weights的随机位置置零
attn_weights = nn.functional.dropout(attn_weights, p=dropout, training=module.training)
#乘value过程
attn_output = torch.matmul(attn_weights, value_states)
#最后转置,形状变为batch_size*seq_len*num_heads*head_dim
attn_output = attn_output.transpose(1, 2).contiguous()
return attn_output, attn_weights
class DollyAttention(nn.Module):
"""
Attention in transformer
"""
def __init__(self, config: DollyConfig, layer_idx: int):
super().__init__()
self.config = config
self.layer_idx = layer_idx
self.head_dim = getattr(config, "head_dim", config.hidden_size // config.num_attention_heads)
#num_key_value_groups即repeat kv的n
self.num_key_value_groups = config.num_attention_heads // config.num_key_value_heads
#attention socre的缩放系数
self.scaling = self.head_dim**-0.5
self.attention_dropout = config.attention_dropout
self.is_causal = True
#Q权重矩阵
self.q_proj = nn.Linear(
config.hidden_size, config.num_attention_heads * self.head_dim, bias=config.attention_bias
)
#K权重矩阵
self.k_proj = nn.Linear(
config.hidden_size, config.num_key_value_heads * self.head_dim, bias=config.attention_bias
)
#V权重矩阵
self.v_proj = nn.Linear(
config.hidden_size, config.num_key_value_heads * self.head_dim, bias=config.attention_bias
)
#Attention的最后一步,线性连接层
self.o_proj = nn.Linear(
config.num_attention_heads * self.head_dim, config.hidden_size, bias=config.attention_bias
)
#给输入q和k进行归一化操作,使用RMSNom,注意仅在最后一个维度进行归一化,参数量为head_dim
self.q_norm = DollyRMSNorm(self.head_dim, eps=config.rms_norm_eps)
self.k_norm = DollyRMSNorm(self.head_dim, eps=config.rms_norm_eps)
#支持滑动窗口
self.sliding_window = config.sliding_window
if not (
self.config.use_sliding_window
and getattr(self.config, "sliding_window", None) is not None
and self.layer_idx >= self.config.max_window_layers
):
self.sliding_window = None
def forward(
self,
hidden_states: torch.Tensor,
position_embeddings: Tuple[torch.Tensor, torch.Tensor],
attention_mask: Optional[torch.Tensor],
past_key_value: Optional[Cache] = None,
cache_position: Optional[torch.LongTensor] = None,
**kwargs: Unpack[FlashAttentionKwargs],
) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
#input_shape: batch_size* seq_len
input_shape = hidden_states.shape[:-1]
#hidden_shape: batch_size* seq_len*-1* head_dim
hidden_shape = (*input_shape, -1, self.head_dim)
#将输入经过Q矩阵变为query,然后调整形状为batch_size* seq_len*-1* head_dim,然后进行归一化,再调整形状batch_size* -1*seq_len* head_dim
query_states = self.q_norm(self.q_proj(hidden_states).view(hidden_shape)).transpose(1, 2)
#将输入经过K矩阵变为key,然后调整形状为batch_size* seq_len*-1* head_dim,然后进行归一化,再调整形状batch_size* -1*seq_len* head_dim
key_states = self.k_norm(self.k_proj(hidden_states).view(hidden_shape)).transpose(1, 2)
#将输入经过V矩阵变为value,然后调整形状为batch_size* seq_len*-1* head_dim,再调整形状batch_size* -1*seq_len* head_dim
value_states = self.v_proj(hidden_states).view(hidden_shape).transpose(1, 2)
#得到嵌入旋转位置编码信息后的query和key
cos, sin = position_embeddings
query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin)
if past_key_value is not None:
# KVCache的cache更新位置信息和kv值
cache_kwargs = {"sin": sin, "cos": cos, "cache_position": cache_position}
key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx, cache_kwargs)
attention_interface: Callable = eager_attention_forward
if self.config._attn_implementation != "eager":
if self.config._attn_implementation == "sdpa" and kwargs.get("output_attentions", False):
logger.warning_once(
"`torch.nn.functional.scaled_dot_product_attention` does not support `output_attentions=True`. Falling back to "
'eager attention. This warning can be removed using the argument `attn_implementation="eager"` when loading the model.'
)
else:
attention_interface = ALL_ATTENTION_FUNCTIONS[self.config._attn_implementation]
#attention的具体计算,返回结果和中间的attention score
attn_output, attn_weights = attention_interface(
self,
query_states,
key_states,
value_states,
attention_mask,
dropout=0.0 if not self.training else self.attention_dropout,
scaling=self.scaling,
sliding_window=self.sliding_window,
**kwargs,
)
#将batch_size*seq_len*num_heads*head_dim 变为 batch_size*seq_len*hiddent_size
attn_output = attn_output.reshape(*input_shape, -1).contiguous()
#attention的线性层
attn_output = self.o_proj(attn_output)
return attn_output, attn_weights
class DollyDecoderLayer(nn.Module):
def __init__(self, config: DollyConfig, layer_idx: int):
super().__init__()
self.hidden_size = config.hidden_size
self.self_attn = DollyAttention(config=config, layer_idx=layer_idx)
self.mlp = DollyMLP(config.hidden_size, config.intermediate_size, config.hidden_act)
self.input_layernorm = DollyRMSNorm(config.hidden_size, eps=config.rms_norm_eps)
self.post_attention_layernorm = DollyRMSNorm(config.hidden_size, eps=config.rms_norm_eps)
#仅flash_attention_2支持滑动窗口
if config.sliding_window and config._attn_implementation != "flash_attention_2":
config.sliding_window = None
def forward(
self,
hidden_states: torch.Tensor,
attention_mask: Optional[torch.Tensor] = None,
position_ids: Optional[torch.LongTensor] = None,
past_key_value: Optional[Cache] = None,
output_attentions: Optional[bool] = False,
use_cache: Optional[bool] = False,
cache_position: Optional[torch.LongTensor] = None,
position_embeddings: Optional[Tuple[torch.Tensor, torch.Tensor]] = None,
**kwargs: Unpack[FlashAttentionKwargs],
) -> Tuple[torch.FloatTensor, Optional[Tuple[torch.FloatTensor, torch.FloatTensor]]]:
#保留最开始的值,后面做残差网络
residual = hidden_states
#step1:归一化
hidden_states = self.input_layernorm(hidden_states)
#step2: Self Attention
hidden_states, self_attn_weights = self.self_attn(
hidden_states=hidden_states,
attention_mask=attention_mask,
position_ids=position_ids,
past_key_value=past_key_value,
output_attentions=output_attentions,
use_cache=use_cache,
cache_position=cache_position,
position_embeddings=position_embeddings,
**kwargs,
)
#step3:残差
hidden_states = residual + hidden_states
residual = hidden_states
#step4:归一化
hidden_states = self.post_attention_layernorm(hidden_states)
#step5:MLP
hidden_states = self.mlp(hidden_states)
#step6:残差
hidden_states = residual + hidden_states
outputs = (hidden_states,)
#是否输出attention weights
if output_attentions:
outputs += (self_attn_weights,)
return outputs
class KwargsForCausalLM(FlashAttentionKwargs, LossKwargs): ...
class DollyPreTrainedModel(PreTrainedModel):
config_class = DollyConfig
base_model_prefix = "model"
supports_gradient_checkpointing = True
_no_split_modules = ["DollyDecoderLayer"]
_skip_keys_device_placement = ["past_key_values"]
_supports_flash_attn_2 = True
_supports_sdpa = True
_supports_flex_attn = True
_supports_cache_class = True
_supports_quantized_cache = True
_supports_static_cache = True
_supports_attention_backend = True
def _init_weights(self, module):
std = self.config.initializer_range
if isinstance(module, nn.Linear):
#初始线性层化权重参数
module.weight.data.normal_(mean=0.0, std=std)
if module.bias is not None:
module.bias.data.zero_()
elif isinstance(module, nn.Embedding):
#初始化embedding层参数
module.weight.data.normal_(mean=0.0, std=std)
if module.padding_idx is not None:
module.weight.data[module.padding_idx].zero_()
class DollyModel(DollyPreTrainedModel):
def __init__(self, config: DollyConfig):
super().__init__(config)
self.padding_idx = config.pad_token_id
self.vocab_size = config.vocab_size
#embedding层
self.embed_tokens = nn.Embedding(config.vocab_size, config.hidden_size, self.padding_idx)
#transformer层
self.layers = nn.ModuleList(
[DollyDecoderLayer(config, layer_idx) for layer_idx in range(config.num_hidden_layers)]
)
#RMSNorm层
self.norm = DollyRMSNorm(config.hidden_size, eps=config.rms_norm_eps)
#RoPE层
self.rotary_emb = DollyRotaryEmbedding(config=config)
self.gradient_checkpointing = False
#进行模型初始化
self.post_init()
def get_input_embeddings(self):
return self.embed_tokens
def set_input_embeddings(self, value):
self.embed_tokens = value
@can_return_tuple
def forward(
self,
input_ids: Optional[torch.LongTensor] = None,
attention_mask: Optional[torch.Tensor] = None,
position_ids: Optional[torch.LongTensor] = None,
past_key_values: Optional[Cache] = None,
inputs_embeds: Optional[torch.FloatTensor] = None,
use_cache: Optional[bool] = None,
output_attentions: Optional[bool] = None,
output_hidden_states: Optional[bool] = None,
cache_position: Optional[torch.LongTensor] = None,
**flash_attn_kwargs: Unpack[FlashAttentionKwargs],
) -> BaseModelOutputWithPast:
#是否输出attention的计算结果
output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
#是否输出隐藏层状态
output_hidden_states = (
output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
)
#是否使用cache
use_cache = use_cache if use_cache is not None else self.config.use_cache
if (input_ids is None) ^ (inputs_embeds is not None):
raise ValueError("You must specify exactly one of input_ids or inputs_embeds")
if self.gradient_checkpointing and self.training and use_cache:
logger.warning_once(
"`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`."
)
use_cache = False
if not isinstance(past_key_values, (type(None), Cache)):
raise ValueError("The `past_key_values` should be either a `Cache` object or `None`.")
if inputs_embeds is None:
inputs_embeds = self.embed_tokens(input_ids)
if use_cache and past_key_values is None:
past_key_values = DynamicCache()
if cache_position is None:
past_seen_tokens = past_key_values.get_seq_length() if past_key_values is not None else 0
cache_position = torch.arange(
past_seen_tokens, past_seen_tokens + inputs_embeds.shape[1], device=inputs_embeds.device
)
if position_ids is None:
position_ids = cache_position.unsqueeze(0)
causal_mask = self._update_causal_mask(
attention_mask, inputs_embeds, cache_position, past_key_values, output_attentions
)
hidden_states = inputs_embeds
#共享RoPE位置编码
position_embeddings = self.rotary_emb(hidden_states, position_ids)
# 否是输出hidden state
all_hidden_states = () if output_hidden_states else None
all_self_attns = () if output_attentions else None
#transformer的计算:
for decoder_layer in self.layers[: self.config.num_hidden_layers]:
if output_hidden_states:
all_hidden_states += (hidden_states,)
#如果启用了梯度检查点,并且处于训练模式下,模型将调用 self._gradient_checkpointing_func,
# 该函数使用 partial 函数来计算并重新计算部分前向过程,从而节省内存。
if self.gradient_checkpointing and self.training:
layer_outputs = self._gradient_checkpointing_func(
partial(decoder_layer.__call__, **flash_attn_kwargs),
hidden_states,
causal_mask,
position_ids,
past_key_values,
output_attentions,
use_cache,
cache_position,
position_embeddings,
)
else:
layer_outputs = decoder_layer(
hidden_states,
attention_mask=causal_mask,
position_ids=position_ids,
past_key_value=past_key_values,
output_attentions=output_attentions,
use_cache=use_cache,
cache_position=cache_position,
position_embeddings=position_embeddings,
**flash_attn_kwargs,
)
hidden_states = layer_outputs[0]
if output_attentions:
all_self_attns += (layer_outputs[1],)
#归一化
hidden_states = self.norm(hidden_states)
# 添加最后一层hidden_states
if output_hidden_states:
all_hidden_states += (hidden_states,)
#将结果打包为BaseModelOutputWithPast数据结构
return BaseModelOutputWithPast(
last_hidden_state=hidden_states,
past_key_values=past_key_values if use_cache else None,
hidden_states=all_hidden_states,
attentions=all_self_attns,
)
def _update_causal_mask(
self,
attention_mask: torch.Tensor,
input_tensor: torch.Tensor,
cache_position: torch.Tensor,
past_key_values: Cache,
output_attentions: bool = False,
):
#处理batch生成时padding问题
if self.config._attn_implementation == "flash_attention_2":
if attention_mask is not None and past_key_values is not None:
is_padding_right = attention_mask[:, -1].sum().item() != input_tensor.size()[0]
if is_padding_right:
raise ValueError(
"You are attempting to perform batched generation with padding_side='right'"
" call `tokenizer.padding_side = 'left'` before tokenizing the input. "
)
if attention_mask is not None and 0.0 in attention_mask:
return attention_mask
return None
# For SDPA, when possible, we will rely on its `is_causal` argument instead of its `attn_mask` argument, in
# order to dispatch on Flash Attention 2. This feature is not compatible with static cache, as SDPA will fail
# to infer the attention mask.
past_seen_tokens = past_key_values.get_seq_length() if past_key_values is not None else 0
using_static_cache = isinstance(past_key_values, StaticCache)
using_sliding_window_cache = isinstance(past_key_values, SlidingWindowCache)
# When output attentions is True, sdpa implementation's forward method calls the eager implementation's forward
if (
self.config._attn_implementation == "sdpa"
and not (using_static_cache or using_sliding_window_cache)
and not output_attentions
):
if AttentionMaskConverter._ignore_causal_mask_sdpa(
attention_mask,
inputs_embeds=input_tensor,
past_key_values_length=past_seen_tokens,
sliding_window=self.config.sliding_window,
is_training=self.training,
):
return None
dtype, device = input_tensor.dtype, input_tensor.device
min_dtype = torch.finfo(dtype).min
sequence_length = input_tensor.shape[1]
# SlidingWindowCache or StaticCache
if using_sliding_window_cache or using_static_cache:
target_length = past_key_values.get_max_cache_shape()
# DynamicCache or no cache
else:
target_length = (
attention_mask.shape[-1]
if isinstance(attention_mask, torch.Tensor)
else past_seen_tokens + sequence_length + 1
)
# In case the provided `attention` mask is 2D, we generate a causal mask here (4D).
causal_mask = self._prepare_4d_causal_attention_mask_with_cache_position(
attention_mask,
sequence_length=sequence_length,
target_length=target_length,
dtype=dtype,
device=device,
cache_position=cache_position,
batch_size=input_tensor.shape[0],
config=self.config,
past_key_values=past_key_values,
)
if (
self.config._attn_implementation == "sdpa"
and attention_mask is not None
and attention_mask.device.type in ["cuda", "xpu"]
and not output_attentions
):
causal_mask = AttentionMaskConverter._unmask_unattended(causal_mask, min_dtype)
return causal_mask
@staticmethod
def _prepare_4d_causal_attention_mask_with_cache_position(
attention_mask: torch.Tensor,
sequence_length: int,
target_length: int,
dtype: torch.dtype,
device: torch.device,
cache_position: torch.Tensor,
batch_size: int,
config: DollyConfig,
past_key_values: Cache,
):
if attention_mask is not None and attention_mask.dim() == 4:
# In this case we assume that the mask comes already in inverted form and requires no inversion or slicing.
causal_mask = attention_mask
else:
min_dtype = torch.finfo(dtype).min
causal_mask = torch.full(
(sequence_length, target_length), fill_value=min_dtype, dtype=dtype, device=device
)
diagonal_attend_mask = torch.arange(target_length, device=device) > cache_position.reshape(-1, 1)
if config.sliding_window is not None:
# if we have sliding window, we should not attend to tokens beyond sliding window length, so we mask them out also
# the check is needed to verify is current checkpoint was trained with sliding window or not
if not isinstance(past_key_values, SlidingWindowCache) or sequence_length > target_length:
sliding_attend_mask = torch.arange(target_length, device=device) <= (
cache_position.reshape(-1, 1) - config.sliding_window
)
diagonal_attend_mask.bitwise_or_(sliding_attend_mask)
causal_mask *= diagonal_attend_mask
causal_mask = causal_mask[None, None, :, :].expand(batch_size, 1, -1, -1)
if attention_mask is not None:
causal_mask = causal_mask.clone() # copy to contiguous memory for in-place edit
if attention_mask.shape[-1] > target_length:
attention_mask = attention_mask[:, :target_length]
mask_length = attention_mask.shape[-1]
padding_mask = causal_mask[:, :, :, :mask_length] + attention_mask[:, None, None, :].to(
causal_mask.device
)
padding_mask = padding_mask == 0
causal_mask[:, :, :, :mask_length] = causal_mask[:, :, :, :mask_length].masked_fill(
padding_mask, min_dtype
)
return causal_mask
class DollyForCausalLM(DollyPreTrainedModel, GenerationMixin):
_tied_weights_keys = ["lm_head.weight"]
_tp_plan = {"lm_head": "colwise_rep"}
_pp_plan = {"lm_head": (["hidden_states"], ["logits"])}
def __init__(self, config):
super().__init__(config)
self.model = DollyModel(config)
self.vocab_size = config.vocab_size
self.lm_head = nn.Linear(config.hidden_size, config.vocab_size, bias=False)
# Initialize weights and apply final processing
self.post_init()
def get_input_embeddings(self):
return self.model.embed_tokens
def set_input_embeddings(self, value):
self.model.embed_tokens = value
def get_output_embeddings(self):
return self.lm_head
def set_output_embeddings(self, new_embeddings):
self.lm_head = new_embeddings
def set_decoder(self, decoder):
self.model = decoder
def get_decoder(self):
return self.model
@can_return_tuple
@deprecate_kwarg("num_logits_to_keep", version="4.50", new_name="logits_to_keep")
def forward(
self,
input_ids: Optional[torch.LongTensor] = None,
attention_mask: Optional[torch.Tensor] = None,
position_ids: Optional[torch.LongTensor] = None,
past_key_values: Optional[Cache] = None,
inputs_embeds: Optional[torch.FloatTensor] = None,
labels: Optional[torch.LongTensor] = None,
use_cache: Optional[bool] = None,
output_attentions: Optional[bool] = None,
output_hidden_states: Optional[bool] = None,
cache_position: Optional[torch.LongTensor] = None,
logits_to_keep: Union[int, torch.Tensor] = 0,
**kwargs: Unpack[KwargsForCausalLM],
) -> CausalLMOutputWithPast:
output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
output_hidden_states = (
output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
)
# decoder outputs consists of (dec_features, layer_state, dec_hidden, dec_attn)
outputs: BaseModelOutputWithPast = self.model(
input_ids=input_ids,
attention_mask=attention_mask,
position_ids=position_ids,
past_key_values=past_key_values,
inputs_embeds=inputs_embeds,
use_cache=use_cache,
output_attentions=output_attentions,
output_hidden_states=output_hidden_states,
cache_position=cache_position,
**kwargs,
)
hidden_states = outputs.last_hidden_state
# Only compute necessary logits, and do not upcast them to float if we are not computing the loss
slice_indices = slice(-logits_to_keep, None) if isinstance(logits_to_keep, int) else logits_to_keep
logits = self.lm_head(hidden_states[:, slice_indices, :])
loss = None
if labels is not None:
loss = self.loss_function(logits=logits, labels=labels, vocab_size=self.config.vocab_size, **kwargs)
return CausalLMOutputWithPast(
loss=loss,
logits=logits,
past_key_values=outputs.past_key_values,
hidden_states=outputs.hidden_states,
attentions=outputs.attentions,
)
class DollyForSequenceClassification(DollyPreTrainedModel):
def __init__(self, config):
super().__init__(config)
self.num_labels = config.num_labels
self.model = DollyModel(config)
self.score = nn.Linear(config.hidden_size, self.num_labels, bias=False)
# Initialize weights and apply final processing
self.post_init()
def get_input_embeddings(self):
return self.model.embed_tokens
def set_input_embeddings(self, value):
self.model.embed_tokens = value
@can_return_tuple
def forward(
self,
input_ids: Optional[torch.LongTensor] = None,
attention_mask: Optional[torch.Tensor] = None,
position_ids: Optional[torch.LongTensor] = None,
past_key_values: Optional[Cache] = None,
inputs_embeds: Optional[torch.FloatTensor] = None,
labels: Optional[torch.LongTensor] = None,
use_cache: Optional[bool] = None,
output_attentions: Optional[bool] = None,
output_hidden_states: Optional[bool] = None,
) -> SequenceClassifierOutputWithPast:
transformer_outputs: BaseModelOutputWithPast = self.model(
input_ids,
attention_mask=attention_mask,
position_ids=position_ids,
past_key_values=past_key_values,
inputs_embeds=inputs_embeds,
use_cache=use_cache,
output_attentions=output_attentions,
output_hidden_states=output_hidden_states,
)
hidden_states = transformer_outputs.last_hidden_state
logits = self.score(hidden_states)
if input_ids is not None:
batch_size = input_ids.shape[0]
else:
batch_size = inputs_embeds.shape[0]
if self.config.pad_token_id is None and batch_size != 1:
raise ValueError("Cannot handle batch sizes > 1 if no padding token is defined.")
if self.config.pad_token_id is None:
last_non_pad_token = -1
elif input_ids is not None:
# To handle both left- and right- padding, we take the rightmost token that is not equal to pad_token_id
non_pad_mask = (input_ids != self.config.pad_token_id).to(logits.device, torch.int32)
token_indices = torch.arange(input_ids.shape[-1], device=logits.device, dtype=torch.int32)
last_non_pad_token = (token_indices * non_pad_mask).argmax(-1)
else:
last_non_pad_token = -1
logger.warning_once(
f"{self.__class__.__name__} will not detect padding tokens in `inputs_embeds`. Results may be "
"unexpected if using padding tokens in conjunction with `inputs_embeds.`"
)
pooled_logits = logits[torch.arange(batch_size, device=logits.device), last_non_pad_token]
loss = None
if labels is not None:
loss = self.loss_function(logits=logits, labels=labels, pooled_logits=pooled_logits, config=self.config)
return SequenceClassifierOutputWithPast(
loss=loss,
logits=pooled_logits,
past_key_values=transformer_outputs.past_key_values,
hidden_states=transformer_outputs.hidden_states,
attentions=transformer_outputs.attentions,
)
class DollyForTokenClassification(DollyPreTrainedModel):
def __init__(self, config):
super().__init__(config)
self.num_labels = config.num_labels
self.model = DollyModel(config)
if getattr(config, "classifier_dropout", None) is not None:
classifier_dropout = config.classifier_dropout
elif getattr(config, "hidden_dropout", None) is not None:
classifier_dropout = config.hidden_dropout
else:
classifier_dropout = 0.1
self.dropout = nn.Dropout(classifier_dropout)
self.score = nn.Linear(config.hidden_size, config.num_labels)
# Initialize weights and apply final processing
self.post_init()
def get_input_embeddings(self):
return self.model.embed_tokens
def set_input_embeddings(self, value):
self.model.embed_tokens = value
@can_return_tuple
def forward(
self,
input_ids: Optional[torch.LongTensor] = None,
attention_mask: Optional[torch.Tensor] = None,
position_ids: Optional[torch.LongTensor] = None,
past_key_values: Optional[Cache] = None,
inputs_embeds: Optional[torch.FloatTensor] = None,
labels: Optional[torch.LongTensor] = None,
use_cache: Optional[bool] = None,
output_attentions: Optional[bool] = None,
output_hidden_states: Optional[bool] = None,
) -> TokenClassifierOutput:
outputs: BaseModelOutputWithPast = self.model(
input_ids,
attention_mask=attention_mask,
position_ids=position_ids,
past_key_values=past_key_values,
inputs_embeds=inputs_embeds,
use_cache=use_cache,
output_attentions=output_attentions,
output_hidden_states=output_hidden_states,
)
sequence_output = outputs.last_hidden_state
sequence_output = self.dropout(sequence_output)
logits = self.score(sequence_output)
loss = None
if labels is not None:
loss = self.loss_function(logits, labels, self.config)
return TokenClassifierOutput(
loss=loss,
logits=logits,
hidden_states=outputs.hidden_states,
attentions=outputs.attentions,
)
class DollyForQuestionAnswering(DollyPreTrainedModel):
base_model_prefix = "transformer"
def __init__(self, config):
super().__init__(config)
self.transformer = DollyModel(config)
self.qa_outputs = nn.Linear(config.hidden_size, 2)
# Initialize weights and apply final processing
self.post_init()
def get_input_embeddings(self):
return self.transformer.embed_tokens
def set_input_embeddings(self, value):
self.transformer.embed_tokens = value
@can_return_tuple
def forward(
self,
input_ids: Optional[torch.LongTensor] = None,
attention_mask: Optional[torch.FloatTensor] = None,
position_ids: Optional[torch.LongTensor] = None,
past_key_values: Optional[Cache] = None,
inputs_embeds: Optional[torch.FloatTensor] = None,
start_positions: Optional[torch.LongTensor] = None,
end_positions: Optional[torch.LongTensor] = None,
output_attentions: Optional[bool] = None,
output_hidden_states: Optional[bool] = None,
**kwargs,
) -> QuestionAnsweringModelOutput:
outputs: BaseModelOutputWithPast = self.transformer(
input_ids,
attention_mask=attention_mask,
position_ids=position_ids,
past_key_values=past_key_values,
inputs_embeds=inputs_embeds,
output_attentions=output_attentions,
output_hidden_states=output_hidden_states,
)
sequence_output = outputs.last_hidden_state
logits = self.qa_outputs(sequence_output)
start_logits, end_logits = logits.split(1, dim=-1)
start_logits = start_logits.squeeze(-1).contiguous()
end_logits = end_logits.squeeze(-1).contiguous()
loss = None
if start_positions is not None and end_positions is not None:
loss = self.loss_function(start_logits, end_logits, start_positions, end_positions, **kwargs)
return QuestionAnsweringModelOutput(
loss=loss,
start_logits=start_logits,
end_logits=end_logits,
hidden_states=outputs.hidden_states,
attentions=outputs.attentions,
)
__all__ = [
"DollyForCausalLM",
"DollyForQuestionAnswering",
"DollyModel",
"DollyPreTrainedModel",
"DollyForSequenceClassification",
"DollyForTokenClassification",
]
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from .configuration_dollyMoE import DollyMoEConfig
from .modeling_dollyMoE import DollyMoEModel, DollyMoEPreTrainedModel
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from transformers import PretrainedConfig
from transformers import logging
from transformers.modeling_rope_utils import rope_config_validation
logger = logging.get_logger(__name__)
class DollyMoEConfig(PretrainedConfig):
model_type = "dolly_moe"
keys_to_ignore_at_inference = ["past_key_values"]
base_model_tp_plan = {
"layers.*.self_attn.q_proj": "colwise",
"layers.*.self_attn.k_proj": "colwise",
"layers.*.self_attn.v_proj": "colwise",
"layers.*.self_attn.o_proj": "rowwise",
"layers.*.mlp.experts.*.gate_proj": "colwise",
"layers.*.mlp.experts.*.up_proj": "colwise",
"layers.*.mlp.experts.*.down_proj": "rowwise",
"layers.*.mlp.gate_proj": "colwise",
"layers.*.mlp.up_proj": "colwise",
"layers.*.mlp.down_proj": "rowwise",
}
base_model_pp_plan = {
"embed_tokens": (["input_ids"], ["inputs_embeds"]),
"layers": (["hidden_states", "attention_mask"], ["hidden_states"]),
"norm": (["hidden_states"], ["hidden_states"]),
}
def __init__(
self,
vocab_size=151936,
hidden_size=1024,
intermediate_size=3072,
num_hidden_layers=28,
num_attention_heads=16,
num_key_value_heads=8,
hidden_act="silu",
max_position_embeddings=32768,
initializer_range=0.02,
rms_norm_eps=1e-6,
use_cache=True,
tie_word_embeddings=False,
rope_theta=1000000.0,
rope_scaling=None,
attention_bias=False,
use_sliding_window=False,
sliding_window=4096,
max_window_layers=28,
attention_dropout=0.0,
decoder_sparse_step=1,
moe_intermediate_size=768,
num_experts_per_tok=4,
num_experts=8,
norm_topk_prob=False,
output_router_logits=False,
router_aux_loss_coef=0.001,
mlp_only_layers=None,
**kwargs,
):
self.vocab_size = vocab_size
self.max_position_embeddings = max_position_embeddings
self.hidden_size = hidden_size
self.intermediate_size = intermediate_size
self.num_hidden_layers = num_hidden_layers
self.num_attention_heads = num_attention_heads
self.use_sliding_window = use_sliding_window
self.sliding_window = sliding_window if use_sliding_window else None
self.max_window_layers = max_window_layers
self.num_key_value_heads = num_key_value_heads
self.hidden_act = hidden_act
self.initializer_range = initializer_range
self.rms_norm_eps = rms_norm_eps
self.use_cache = use_cache
self.rope_theta = rope_theta
self.rope_scaling = rope_scaling
self.attention_bias = attention_bias
self.attention_dropout = attention_dropout
if self.rope_scaling is not None and "type" in self.rope_scaling:
self.rope_scaling["rope_type"] = self.rope_scaling["type"]
rope_config_validation(self)
self.decoder_sparse_step = decoder_sparse_step
self.moe_intermediate_size = moe_intermediate_size
self.num_experts_per_tok = num_experts_per_tok
self.num_experts = num_experts
self.norm_topk_prob = norm_topk_prob
self.output_router_logits = output_router_logits
self.router_aux_loss_coef = router_aux_loss_coef
self.mlp_only_layers = [] if mlp_only_layers is None else mlp_only_layers
super().__init__(
tie_word_embeddings=tie_word_embeddings,
**kwargs,
)
__all__ = ["DollyMoEConfig"]
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import torch
from src_llm.modeling_dolly import DollyForCausalLM
from transformers import (
Trainer,
TrainingArguments,
DataCollatorForLanguageModeling,
AutoTokenizer,
set_seed
)
from datasets import load_dataset
from accelerate import Accelerator
import os
import logging
import glob
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
accelerator = Accelerator()
set_seed(42)
model_name = "/mnt/han.luzhi/dolly_llm/weights_llm"
resume_option = None
# resume_option = True
# resume_option = "/mnt/han.luzhi/dolly_llm/checkpoints_ds/checkpoint-500"
tokenizer = AutoTokenizer.from_pretrained(model_name)
if tokenizer.pad_token is None:
tokenizer.pad_token = tokenizer.eos_token
if isinstance(resume_option, str) and os.path.exists(resume_option):
logger.info(f"从指定检查点 {resume_option} 加载模型...")
model = DollyForCausalLM.from_pretrained(resume_option)
else:
logger.info("未找到检查点,从预训练模型加载...")
logger.info(f"从预训练模型 {model_name} 加载...")
model = DollyForCausalLM.from_pretrained(model_name)
model.gradient_checkpointing_enable()
data_files = glob.glob("/mnt/han.luzhi/dolly_llm/corpus/*.jsonl")
logger.info(f"找到训练语料: {data_files}")
dataset = load_dataset('json', data_files=data_files, split='train')
# dataset = load_dataset('text', data_files={'train': '/mnt/han.luzhi/dolly_llm/corpus/wikipedia.txt'})
def preprocess_function(examples):
return tokenizer(
examples['text'],
truncation=True,
max_length=512,
padding='max_length',
return_tensors='pt'
)
tokenized_datasets = dataset.map(
preprocess_function,
batched=True,
# remove_columns=['text'],
remove_columns=dataset.column_names,
num_proc=16
)
data_collator = DataCollatorForLanguageModeling(
tokenizer=tokenizer,
mlm=False
)
training_args = TrainingArguments(
output_dir="/mnt/han.luzhi/dolly_llm/checkpoints_ds",
deepspeed="/mnt/han.luzhi/dolly_llm/deepspeed_config/ds_stage2.json",
do_eval=False,
save_strategy="steps",
save_steps=500,
learning_rate=1e-4,
per_device_train_batch_size=36,
num_train_epochs=2,
logging_dir="/mnt/han.luzhi/dolly_llm/logs",
logging_steps=20,
save_total_limit=2,
fp16=True,
dataloader_num_workers=3,
gradient_accumulation_steps=2,
report_to="tensorboard",
optim="adamw_torch",
lr_scheduler_type="cosine",
warmup_steps=500,
weight_decay=0.01,
local_rank=int(os.environ.get("LOCAL_RANK", 0)),
disable_tqdm=False,
logging_first_step=True,
log_level="info",
ddp_find_unused_parameters=False,
overwrite_output_dir=True,
)
trainer = Trainer(
model=model,
args=training_args,
train_dataset=tokenized_datasets,
processing_class=tokenizer,
data_collator=data_collator,
)
logger.info("***** 开始训练 *****")
logger.info(f" 进程数 = {accelerator.num_processes}")
logger.info(f" 设备 = {accelerator.device}")
logger.info(f" 总批大小 = {training_args.per_device_train_batch_size * accelerator.num_processes * training_args.gradient_accumulation_steps}")
if resume_option !=None:
trainer.train(resume_from_checkpoint=resume_option)
else:
trainer.train()
if accelerator.is_main_process:
trainer.save_model("/mnt/han.luzhi/dolly_llm/result/final")
tokenizer.save_pretrained("/mnt/han.luzhi/dolly_llm/result/final")
logger.info("***** 训练完成,模型已保存 *****")
## deepspeed --num_gpus=4 --master_port=12345 pretrain_transformers.py
# deepspeed --include="localhost:1,2,3" --master_port=12345 pretrain_transformers.py
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import torch
from src_llm_moe.modeling_dollyMoE import DollyMoEForCausalLM
from transformers import (
Trainer,
TrainingArguments,
DataCollatorForLanguageModeling,
AutoTokenizer,
set_seed
)
from datasets import load_dataset
from accelerate import Accelerator
import os
import logging
import glob
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
accelerator = Accelerator()
set_seed(42)
model_name = "/mnt/han.luzhi/dolly/weights_MoE"
resume_option = None
# resume_option = True
# resume_option = "/mnt/han.luzhi/dolly_llm/checkpoints_ds/checkpoint-500"
tokenizer = AutoTokenizer.from_pretrained(model_name)
if tokenizer.pad_token is None:
tokenizer.pad_token = tokenizer.eos_token
if isinstance(resume_option, str) and os.path.exists(resume_option):
logger.info(f"从指定检查点 {resume_option} 加载模型...")
model = DollyMoEForCausalLM.from_pretrained(resume_option)
else:
logger.info("未找到检查点,从预训练模型加载...")
logger.info(f"从预训练模型 {model_name} 加载...")
model = DollyMoEForCausalLM.from_pretrained(model_name)
model.gradient_checkpointing_enable()
data_files = glob.glob("/mnt/han.luzhi/dolly/corpus/*.jsonl")
logger.info(f"找到训练语料: {data_files}")
dataset = load_dataset('json', data_files=data_files, split='train')
# dataset = load_dataset('text', data_files={'train': '/mnt/han.luzhi/dolly_llm/corpus/wikipedia.txt'})
def preprocess_function(examples):
return tokenizer(
examples['text'],
truncation=True,
max_length=512,
padding='max_length',
return_tensors='pt'
)
tokenized_datasets = dataset.map(
preprocess_function,
batched=True,
# remove_columns=['text'],
remove_columns=dataset.column_names,
num_proc=16
)
data_collator = DataCollatorForLanguageModeling(
tokenizer=tokenizer,
mlm=False
)
training_args = TrainingArguments(
output_dir="/mnt/han.luzhi/dolly/checkpoints_MoE",
deepspeed="/mnt/han.luzhi/dolly/deepspeed_config/ds_stage2.json",
do_eval=False,
save_strategy="steps",
save_steps=500,
learning_rate=1e-4,
per_device_train_batch_size=16,
num_train_epochs=2,
logging_dir="/mnt/han.luzhi/dolly/logs",
logging_steps=20,
save_total_limit=2,
fp16=True,
dataloader_num_workers=3,
gradient_accumulation_steps=2,
report_to="tensorboard",
optim="adamw_torch",
lr_scheduler_type="cosine",
warmup_steps=500,
weight_decay=0.01,
local_rank=int(os.environ.get("LOCAL_RANK", 0)),
disable_tqdm=False,
logging_first_step=True,
log_level="info",
ddp_find_unused_parameters=False,
overwrite_output_dir=True,
)
trainer = Trainer(
model=model,
args=training_args,
train_dataset=tokenized_datasets,
processing_class=tokenizer,
data_collator=data_collator,
)
logger.info("***** 开始训练 *****")
logger.info(f" 进程数 = {accelerator.num_processes}")
logger.info(f" 设备 = {accelerator.device}")
logger.info(f" 总批大小 = {training_args.per_device_train_batch_size * accelerator.num_processes * training_args.gradient_accumulation_steps}")
if resume_option !=None:
trainer.train(resume_from_checkpoint=resume_option)
else:
trainer.train()
if accelerator.is_main_process:
trainer.save_model("/mnt/han.luzhi/dolly/chechpoints_MoE/final")
tokenizer.save_pretrained("/mnt/han.luzhi/dolly/chechpoints_MoE/final")
logger.info("***** 训练完成,模型已保存 *****")
## deepspeed --num_gpus=4 --master_port=12345 pretrain_transformers.py
# CUDA_VISIBLE_DEVICES=1,2,3 deepspeed --include="localhost:1,2,3" --master_port=12345 pretrain_transformers.py
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import torch
from src_llm.modeling_dolly import DollyForCausalLM
from transformers import (
Trainer,
TrainingArguments,
DataCollatorForLanguageModeling,
AutoTokenizer,
set_seed
)
from datasets import load_dataset
from accelerate import Accelerator
import os
import logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
accelerator = Accelerator()
set_seed(42)
model_name = "/mnt/han.luzhi/dolly_llm/weights_llm"
# resume_option = None
# resume_option = True
resume_option = "/mnt/han.luzhi/dolly_llm/result/checkpoint-59000"
# resume_option = "/mnt/han.luzhi/dolly_llm/result/final"
tokenizer = AutoTokenizer.from_pretrained(model_name)
if tokenizer.pad_token is None:
tokenizer.pad_token = tokenizer.eos_token
if isinstance(resume_option, str) and os.path.exists(resume_option):
logger.info(f"从指定检查点 {resume_option} 加载模型...")
model = DollyForCausalLM.from_pretrained(resume_option)
else:
logger.info("未找到检查点,从预训练模型加载...")
logger.info(f"从预训练模型 {model_name} 加载...")
model = DollyForCausalLM.from_pretrained(model_name)
model.gradient_checkpointing_enable()
dataset = load_dataset('text', data_files={'train': '/mnt/han.luzhi/dolly_llm/corpus/wikipedia.txt'})
def preprocess_function(examples):
return tokenizer(
examples['text'],
truncation=True,
max_length=512,
padding='max_length',
return_tensors='pt'
)
tokenized_datasets = dataset.map(
preprocess_function,
batched=True,
remove_columns=['text'],
num_proc=16
)
data_collator = DataCollatorForLanguageModeling(
tokenizer=tokenizer,
mlm=False
)
training_args = TrainingArguments(
output_dir="/mnt/han.luzhi/dolly_llm/result",
do_eval=False,
save_strategy="steps",
save_steps=500,
learning_rate=5e-5,
per_device_train_batch_size=26,
num_train_epochs=5,
logging_dir="/mnt/han.luzhi/dolly_llm/logs",
logging_steps=10,
save_total_limit=2,
fp16=True,
dataloader_num_workers=3,
gradient_accumulation_steps=2,
report_to="tensorboard",
optim="adamw_torch",
lr_scheduler_type="cosine",
warmup_steps=500,
weight_decay=0.01,
local_rank=int(os.environ.get("LOCAL_RANK", 0)),
disable_tqdm=False,
logging_first_step=True,
log_level="info",
log_level_replica="info",
ddp_find_unused_parameters=False,
)
trainer = Trainer(
model=model,
args=training_args,
train_dataset=tokenized_datasets['train'],
processing_class=tokenizer,
data_collator=data_collator,
)
logger.info("***** 开始训练 *****")
logger.info(f" 进程数 = {accelerator.num_processes}")
logger.info(f" 设备 = {accelerator.device}")
logger.info(f" 总批大小 = {training_args.per_device_train_batch_size * accelerator.num_processes * training_args.gradient_accumulation_steps}")
trainer.train(resume_from_checkpoint=resume_option)
if accelerator.is_main_process:
trainer.save_model("/mnt/han.luzhi/dolly_llm/result/final")
tokenizer.save_pretrained("/mnt/han.luzhi/dolly_llm/result/final")
logger.info("***** 训练完成,模型已保存 *****")
## python3 -m torch.distributed.launch --nproc_per_node=4 --master_port=12345 pretrain_transformers.py
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# USAGE
使用sentencepiece和huggingface transformers分别进行tokenizer的训练
support BPE and BBPE
@@ -0,0 +1,23 @@
from transformers import AutoTokenizer
def get_training_corpus(file_path, batch_size=1000):
with open(file_path, "r", encoding="utf-8") as f:
batch = []
for line in f:
batch.append(line.strip())
if len(batch) >= batch_size:
yield batch
batch = []
if batch:
yield batch
old_tokenizer = AutoTokenizer.from_pretrained("tokenizer_file/dolly_tokenizer_hf2")
training_corpus = get_training_corpus("corpus/wikipedia.txt")
tokenizer = old_tokenizer.train_new_from_iterator(
training_corpus,
vocab_size=34000
)
tokenizer.save_pretrained("tokenizer_file/new_tokenizer2")
@@ -0,0 +1,16 @@
from datasets import load_dataset
from transformers import AutoTokenizer
dataset = load_dataset("text", data_files="corpus/wikipedia.txt", streaming=True)
def batch_iterator(batch_size=1000):
for batch in dataset["train"].iter(batch_size):
yield batch["text"]
old_tokenizer = AutoTokenizer.from_pretrained("tokenizer_file/dolly_tokenizer_hf2")
tokenizer = old_tokenizer.train_new_from_iterator(
batch_iterator(),
vocab_size=33000,
)
tokenizer.save_pretrained("new_tokenizer")
@@ -0,0 +1,149 @@
import os
import json
from pathlib import Path
from tokenizers import (
decoders,
models,
normalizers,
pre_tokenizers,
processors,
trainers,
Tokenizer,
)
from transformers import PreTrainedTokenizerFast
import logging
from tqdm import tqdm
log_dir = "/mnt/hanluzhi/dolly/logs"
os.makedirs(log_dir, exist_ok=True)
logging.basicConfig(
level=logging.INFO,
format='%(asctime)s - %(message)s',
handlers=[
logging.StreamHandler(),
logging.FileHandler(os.path.join(log_dir, "training.log"))
]
)
def get_training_corpus():
for file_path in tqdm(jsonl_files, desc="processing files", unit="file"):
with open(file_path, "r", encoding="utf-8") as f:
for line in f:
data = json.loads(line)
if "text" in data:
yield data["text"]
corpus_dir = Path("./corpus/skypile_2020_head")
jsonl_files = list(corpus_dir.glob("**/*.jsonl"))
if not jsonl_files:
raise ValueError("No training files found")
special_tokens = [
"<|endoftext|>",
"<|im_start|>",
"<|im_end|>",
]
tokenizer = Tokenizer(models.BPE())
tokenizer.normalizer = normalizers.Sequence([
normalizers.NFKC(),
normalizers.StripAccents(),
])
tokenizer.pre_tokenizer = pre_tokenizers.Sequence(
[
pre_tokenizers.Split(r"[\r\n]", "isolated"),
pre_tokenizers.Split(r"\s?[A-Za-zµÀ-ÖØ-öø-ƺƼ-ƿDŽ-ʓʕ-ʯͰ-ͳͶͷͻ-ͽͿΆΈ-ΊΌΎ-ΡΣ-ϵϷ-ҁҊ-ԯԱ-ՖႠ-ჅᎠ-Ᏽᏸ-ᏽᲐ-ᲺᲽ-Ჿᴀ-ᴫᵫ-ᵷᵹ-ᶚḀ-ἕἘ-Ἕἠ-ὅὈ-Ὅὐ-ὗὙὛὝὟ-ώᾀ-ᾴᾶ-ᾼιῂ-ῄῆ-ῌῐ-ΐῖ-Ίῠ-Ῥῲ-ῴῶ-ῼℂℇℊ-ℓℕℙ-ℝℤΩℨK-ℭℯ-ℴℹℼ-ℿⅅ-ⅉⅎↃↄⰀ-ⱻⱾ-ⳤⳫ-ⳮⳲⳳꙀ-ꙭꚀ-ꚛꜢ-ꝯꝱ-ꞇꞋ-ꞎꭰ-ꮿff-stﬓ-ﬗA-Za-z𐐀-𐑏𐒰-𐓓𐓘-𐓻𐲀-𐲲𐳀-𐳲𑢠-𑣟𞤀-𞥃]+","isolated"),
pre_tokenizers.Split(r"\s?[!-/:-~!-/:-~‘-‟ -。]+", "isolated"),
pre_tokenizers.Split(r"\s+$", "isolated"),
pre_tokenizers.Split("[一-龥ࠀ-一가-퟿]+","isolated"),
pre_tokenizers.Digits(individual_digits=True),
pre_tokenizers.ByteLevel(add_prefix_space=False, use_regex=False),
])
# tokenizer.post_processor = None
tokenizer.post_processor = processors.ByteLevel(use_regex=True, trim_offsets=False, add_prefix_space=True)
tokenizer.decoder = decoders.ByteLevel(
use_regex=True,
trim_offsets=True,
add_prefix_space=False
)
trainer = trainers.BpeTrainer(
vocab_size=12800,
special_tokens=special_tokens,
show_progress=True
)
logging.info("Training tokenizer...")
tokenizer.train_from_iterator(
get_training_corpus(),
trainer=trainer,
length=sum(1 for _ in get_training_corpus())
)
wrapped_tokenizer = PreTrainedTokenizerFast(
tokenizer_object=tokenizer,
bos_token=None,
eos_token="<|endoftext|>",
pad_token="<|endoftext|>",
unk_token=None,
additional_special_tokens=["<|im_start|>", "<|im_end|>"],
model_max_length=32768,
clean_up_tokenization_spaces=False,
errors="replace",
split_special_tokens=False,
)
logging.info("train done ")
output_dir = Path("./llm_tokenizer")
output_dir.mkdir(exist_ok=True, parents=True)
wrapped_tokenizer.save_pretrained(output_dir)
logging.info(f"Tokenizer saved to {output_dir}")
QWEN2_CHAT_TEMPLATE = (
"{% for message in messages %}"
"{% if loop.first and messages[0]['role'] != 'system' %}"
"{{ '<|im_start|>system\nYou are a helpful assistant<|im_end|>\n' }}"
"{% endif %}"
"{{'<|im_start|>' + message['role'] + '\n' + message['content'] + '<|im_end|>' + '\n'}}"
"{% endfor %}"
"{% if add_generation_prompt %}"
"{{ '<|im_start|>assistant\n' }}"
"{% endif %}"
)
wrapped_tokenizer.chat_template = QWEN2_CHAT_TEMPLATE
wrapped_tokenizer.save_pretrained(output_dir)
messages = [
{"role": "user", "content": "你好!"},
{"role": "assistant", "content": "你好,有什么可以帮您?"},
{"role": "user", "content": "Python怎么用?"}
]
formatted = wrapped_tokenizer.apply_chat_template(
messages,
tokenize=False,
add_generation_prompt=True
)
logging.info("\n格式化后的对话:")
logging.info(formatted)
test_text = "深度学习是人工智能的一个重要分支。Deep learning is a subset of machine learning."
logging.info("\nTest tokenization:")
encoded = wrapped_tokenizer.tokenize(test_text)
logging.info(encoded)
logging.info(encoded)
decoded_text = wrapped_tokenizer.decode(encoded)
logging.info(decoded_text)
logging.info(decoded_text)
@@ -0,0 +1,10 @@
from transformers import AutoTokenizer, AutoModel
tokenizer = AutoTokenizer.from_pretrained("tokenizer_file/hf_tokenizer")
new_tokens = ["<ACTION_1>", "<ACTION_2>"]
tokenizer.add_tokens(new_tokens)
text = "<ACTION_1>"
print(tokenizer.tokenize(text))
tokenizer.save_pretrained("updated_tokenizer")
@@ -0,0 +1,118 @@
import os
import json
from pathlib import Path
import sentencepiece as spm
import logging
import tempfile
import unicodedata
from transformers import PreTrainedTokenizerFast
from tqdm import tqdm
logging.basicConfig(level=logging.INFO, format='%(message)s')
def normalize_text(text):
text = text.replace('\x00', '')
text = unicodedata.normalize('NFKC', text)
text = ''.join(c for c in unicodedata.normalize('NFD', text)
if unicodedata.category(c) != 'Mn')
return text
corpus_dir = Path("./corpus/skypile_2020_head")
jsonl_files = list(corpus_dir.glob("**/*.jsonl"))
if not jsonl_files:
raise ValueError("No training files found")
special_tokens = ["<|endoftext|>", "<|im_start|>", "<|im_end|>"]
logging.info("Staring processing corpus")
with tempfile.NamedTemporaryFile(mode='w', delete=False, suffix='.txt') as temp_corpus:
temp_corpus_path = temp_corpus.name
file_progress = tqdm(jsonl_files, desc="处理文件中", unit="file")
for file_path in file_progress:
file_progress.set_description(f"处理: {file_path.name[:40]}...")
with open(file_path, "r", encoding="utf-8") as f:
for line in f:
try:
data = json.loads(line)
if "text" in data:
normalized_text = normalize_text(data["text"])
temp_corpus.write(normalized_text + "\n")
except json.JSONDecodeError as e:
logging.warning(f"JSON 解析错误在 {file_path}: {e}")
except UnicodeDecodeError as e:
logging.warning(f"编码错误在 {file_path}: {e}")
logging.info("corpus processing completed")
logging.info("Starting SentencePiece training")
vocab_size = 32000
# character_coverage = 0.9995
spm.SentencePieceTrainer.train(
input=temp_corpus_path,
model_prefix='tokenizer_model',
vocab_size=vocab_size,
model_type='bpe',
character_coverage=1.0,
pad_id=-1,
bos_id=-1,
eos_id=-1,
unk_id=0,
user_defined_symbols=special_tokens,
split_digits=True,
byte_fallback=True,
remove_extra_whitespaces=False,
add_dummy_prefix=False,
normalization_rule_name='identity',
num_threads=os.cpu_count(),
max_sentencepiece_length=32,
shuffle_input_sentence=True,
)
os.unlink(temp_corpus_path)
logging.info("SentencePiece training completed")
tokenizer = PreTrainedTokenizerFast(
tokenizer_file='tokenizer_model.model',
bos_token=None,
eos_token="<|endoftext|>",
pad_token="<|endoftext|>",
unk_token=None,
additional_special_tokens=["<|im_start|>", "<|im_end|>"],
model_max_length=32768,
clean_up_tokenization_spaces=False,
split_special_tokens=False,
errors="replace"
)
output_dir = Path("./llm_tokenizer")
output_dir.mkdir(exist_ok=True, parents=True)
tokenizer.save_pretrained(output_dir)
logging.info(f"Tokenizer saved to {output_dir}")
QWEN2_CHAT_TEMPLATE = (
"{% for message in messages %}"
"{% if loop.first and messages[0]['role'] != 'system' %}"
"{{ '<|im_start|>system\nYou are a helpful assistant<|im_end|>\n' }}"
"{% endif %}"
"{{'<|im_start|>' + message['role'] + '\n' + message['content'] + '<|im_end|>' + '\n'}}"
"{% endfor %}"
"{% if add_generation_prompt %}"
"{{ '<|im_start|>assistant\n' }}"
"{% endif %}"
)
tokenizer.chat_template = QWEN2_CHAT_TEMPLATE
tokenizer.save_pretrained(output_dir)
messages = [
{"role": "user", "content": "你好!"},
{"role": "assistant", "content": "你好,有什么可以帮您?"},
{"role": "user", "content": "Python怎么用?"}
]
formatted = tokenizer.apply_chat_template(
messages,
tokenize=False,
add_generation_prompt=True
)
print("\n格式化后的对话:")
print(formatted)
@@ -0,0 +1,33 @@
import sentencepiece as spm
from sentencepiece import sentencepiece_model_pb2 as sp_model_pb2
model_file = "tokenizer_part/dolly_tokenizer_spm/tokenizer_zh.model"
en_model_file = "tokenizer_part/dolly_tokenizer_spm/tokenizer_en.model"
model_file_new = "tokenizer_part/dolly_tokenizer_spm/tokenizer.model"
chinese_sp = spm.SentencePieceProcessor(model_file=model_file)
en_sp = spm.SentencePieceProcessor(model_file=en_model_file)
print(chinese_sp.vocab_size())#32000
chinese_spm = sp_model_pb2.ModelProto()
chinese_spm.ParseFromString(chinese_sp.serialized_model_proto())
en_spm = sp_model_pb2.ModelProto()
en_spm.ParseFromString(en_sp.serialized_model_proto())
chinese_sp_set = set(p.piece for p in chinese_spm.pieces)
for p in en_spm.pieces:
piece = p.piece
if piece not in chinese_sp_set:
chinese_sp_set.add(piece)
new_piece = sp_model_pb2.ModelProto().SentencePiece()
new_piece.piece = piece
new_piece.score = 0
chinese_spm.pieces.append(new_piece)
print(f"after expand vocab={len(chinese_spm.pieces)}") # 32361,增加361个
with open(model_file_new, 'wb') as file:
file.write(chinese_spm.SerializeToString())
@@ -0,0 +1,18 @@
from transformers import AutoTokenizer,XLMRobertaTokenizer
#由spm转为hf_tokenizer
tokenizer = XLMRobertaTokenizer.from_pretrained("tokenizer_file/dolly_tokenizer_spm/tokenizer.model")
text = "A Frenchman from Paris"
encoded_input = tokenizer.encode(text)
print(encoded_input)
decoded_output = tokenizer.decode(encoded_input)
print(decoded_output)
tokenizer.save_pretrained('tokenizer_file/dolly_tokenizer_hf')
#转换为常见的tokenzier.json格式
tokenizer = AutoTokenizer.from_pretrained("tokenizer_file/dolly_tokenizer_hf")
text = "A Frenchman from Paris"
encoded_input = tokenizer.encode(text)
print(encoded_input)
decoded_output = tokenizer.decode(encoded_input)
print(decoded_output)
tokenizer.save_pretrained('tokenizer_file/dolly_tokenizer_hf2')
@@ -0,0 +1,21 @@
import sentencepiece as spm
from sentencepiece import sentencepiece_model_pb2 as sp_model_pb2
sp = spm.SentencePieceProcessor(model_file='tokenizer_file/dolly_tokenizer_spm/tokenizer.model')
print(sp.vocab_size()) # 32461
old_model = sp_model_pb2.ModelProto()
old_model.ParseFromString(sp.serialized_model_proto())
pieces = ['拉布拉多', '货拉拉', '拉不拉']
existed_pieces = set(p.piece for p in old_model.pieces)
for piece in pieces:
if piece not in existed_pieces:
existed_pieces.add(piece)
new_piece = sp_model_pb2.ModelProto().SentencePiece()
new_piece.piece = piece
new_piece.score = 0
old_model.pieces.append(new_piece)
print(len(old_model.pieces)) # 32461
with open('tokenizer_file/dolly_tokenizer_spm/expand_tokenizer.model', 'wb') as f:
f.write(old_model.SerializeToString())
@@ -0,0 +1,15 @@
import sentencepiece as spm
sp = spm.SentencePieceProcessor(model_file='tokenizer_part/dolly-tokenizer/tokenizer.model')
sp_en= spm.SentencePieceProcessor(model_file='tokenizer_part/dolly-tokenizer/tokenizer_en.model')
sentence = 'A Frenchman from Paris'
pieces = sp.encode_as_pieces(sentence)
pieces_en = sp_en.encode_as_pieces(sentence)
print(pieces) # ['▁A', '▁F', 'ren', 'ch', 'man', '▁from', '▁P', 'ar', 'is']
print(pieces_en) #'▁A', '▁F', 'ren', 'ch', 'man', '▁from', '▁P', 'aris'
tokens = sp.encode(sentence)
tokens_en = sp_en.encode(sentence)
print(tokens) # [338, 493, 587, 349, 807, 429, 373, 279, 282]
print(tokens_en) #364, 490, 5981, 398, 2036, 32046, 386, 9020]
# 解码后的结果应等于编码前的输入
# assert sp.decode(tokens) == sentence