初始化项目，由ModelHub XC社区提供模型
Model: tclf90/llama-3-chinese-8b-instruct-v3-GPTQ-Int4 Source: Original Platform
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README.md
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README.md
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---
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license: llama3
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license_name: llama3
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license_link: LICENSE
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pipeline_tag: text-generation
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tags:
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- llama3
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- gptq
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- int4
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- 量化修复
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- vLLM
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---
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# Llama-3-chinese-8b-instruct-v3-GPTQ-Int4-量化修复
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原模型 [ChineseAlpacaGroup/llama-3-chinese-8b-instruct-v3](https://www.modelscope.cn/models/ChineseAlpacaGroup/llama-3-chinese-8b-instruct-v3)
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### 【模型更新日期】
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``` 2024-06-02 ```
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### 【模型大小】
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`6.2GB`
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### 【介绍】
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Llama-3-Chinese-8B-Instruct-v3（指令模型），融合了v1、v2以及Meta原版Instruct模型，在中文任务上大幅超越v1/v2版，英文任务上与Meta原版保持持平，主观体验效果显著提升。
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[更多详情...](https://github.com/ymcui/Chinese-LLaMA-Alpaca-3/releases/tag/v3.0)
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### 【量化修复】
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调优了现有 `AWQ` 与 `GPTQ` 量化算法的量化策略。带有`量化修复`标签的`Int3`模型，可以比肩默认`AWQ`与`GPTQ`算法的`Int8`模型的能力。
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1. 量化修复可以极大减少模型的`1.乱吐字`、`2.无限循环`、`3.长文能力丢失`等量化损失造成的模型不可用的情况。
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2. 调优后的量化模型，`AWQ`与`GPTQ`模型在能力上没有表现出明显区别。同时考虑到`GPTQ`的`vLLM`引擎的并发推理效率最好，所以不再制作`AWQ`模型。
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3. 调优后的量化算法，`int4`与`int3`在大尺寸的（30B+）模型上没有表现出明显区别。
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4. 小尺寸的模型，会争取采用`int4`与`group_size=32`的配置，以尽最大可能减少量化造成的损失。
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### 【同期量化修复模型】
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| 模型名称 | 磁盘大小（GB） |
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|---------------------------------------------------------------------------------------------------------------------------------|----------|
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| [零一万物-1.5-6B-Chat-GPTQ-Int3-量化修复](https://www.modelscope.cn/models/tclf90/Yi-1.5-6B-Chat-GPTQ-Int3) | 3.3 |
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| [零一万物-1.5-9B-Chat-16K-GPTQ-Int3-量化修复](https://www.modelscope.cn/models/tclf90/Yi-1.5-9B-Chat-16K-GPTQ-Int3) | 4.4 |
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| [零一万物-1.5-34B-Chat-16K-GPTQ-Int3-量化修复](https://www.modelscope.cn/models/tclf90/Yi-1.5-34B-Chat-16K-GPTQ-Int3) | 15.1 |
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| [通义千问1.5-7B-Chat-GPTQ-Int3-量化修复](https://www.modelscope.cn/models/tclf90/Qwen1.5-7B-Chat-GPTQ-Int3) | 5.1 |
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| [通义千问1.5-14B-Chat-GPTQ-Int3-量化修复](https://www.modelscope.cn/models/tclf90/Qwen1.5-14B-Chat-GPTQ-Int3) | 8.1 |
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| [通义千问1.5-32B-Chat-GPTQ-Int3-量化修复](https://www.modelscope.cn/models/tclf90/Qwen1.5-32B-Chat-GPTQ-Int3) | 15.4 |
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| [通义千问1.5-72B-Chat-GPTQ-Int3-量化修复](https://www.modelscope.cn/models/tclf90/Qwen1.5-72B-Chat-GPTQ-Int3) | 32.5 |
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| [通义千问1.5-110B-Chat-GPTQ-Int3-量化修复](https://www.modelscope.cn/models/tclf90/Qwen1.5-110B-Chat-GPTQ-Int3) | 47.9 |
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| [openbuddy-llama3-70b-v21.1-8k-GPTQ-Int3-量化修复](https://www.modelscope.cn/models/tclf90/openbuddy-llama3-70b-v21.1-8k-GPTQ-Int3) | 31.5 |
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### 【模型下载】
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```python
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from modelscope import snapshot_download
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model_dir = snapshot_download('tclf90/模型名', cache_dir="本地路径")
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```
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### 【[vLLM](https://github.com/vllm-project/vllm)推理（目前仅限Linux）】
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#### 1. Python 简易调试
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```python
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from transformers import AutoTokenizer
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from vllm import LLM, SamplingParams
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max_model_len, tp_size = 4000, 1
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model_name = "本地路径/tclf90/模型名称" # 例："./my_models/tclf90/Qwen1.5-32B-Chat-GPTQ-Int3"
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model_name = model_name.replace('.', '___')
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tokenizer = AutoTokenizer.from_pretrained(model_name)
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llm = LLM(model=model_name, tensor_parallel_size=tp_size, max_model_len=max_model_len, trust_remote_code=True, enforce_eager=True)
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sampling_params = SamplingParams(temperature=0.7, max_tokens=256, stop_token_ids=[tokenizer.eos_token_id])
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messages_list = [
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[{"role": "user", "content": "你是谁"}],
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[{"role": "user", "content": "介绍一下你自己"}],
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[{"role": "user", "content": "用python写一个快排函数"}],
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]
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prompt_token_ids = [tokenizer.apply_chat_template(messages, add_generation_prompt=True) for messages in messages_list]
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outputs = llm.generate(prompt_token_ids=prompt_token_ids, sampling_params=sampling_params)
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generated_text = [output.outputs[0].text for output in outputs]
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print(generated_text)
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```
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#### 2. 类ChatGPT RESTFul API Server
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```
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>>> python -m vllm.entrypoints.openai.api_server --model 本地路径/tclf90/模型名称
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```
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### 【Transformer推理】
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```python
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import torch
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from transformers import AutoTokenizer, AutoModelForCausalLM, GenerationConfig
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model_name = "本地路径/tclf90/模型名称" # 例："./my_models/tclf90/Qwen1.5-32B-Chat-GPTQ-Int3"
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model_name = model_name.replace('.', '___')
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tokenizer = AutoTokenizer.from_pretrained(model_name, trust_remote_code=True)
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model = AutoModelForCausalLM.from_pretrained(model_name, trust_remote_code=True, torch_dtype=torch.bfloat16).cuda()
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model.generation_config = GenerationConfig.from_pretrained(model_name)
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model.generation_config.pad_token_id = model.generation_config.eos_token_id
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messages = [
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{"role": "user", "content": "你好你是谁"}
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]
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input_tensor = tokenizer.apply_chat_template(messages, add_generation_prompt=True, return_tensors="pt")
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outputs = model.generate(input_tensor.to(model.device), max_new_tokens=100)
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result = tokenizer.decode(outputs[0][input_tensor.shape[1]:], skip_special_tokens=True)
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print(result)
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```
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