--- license: llama3 license_name: llama3 license_link: LICENSE pipeline_tag: text-generation tags: - llama3 - gptq - int4 - 量化修复 - vLLM --- # Llama-3-chinese-8b-instruct-v3-GPTQ-Int4-量化修复 原模型 [ChineseAlpacaGroup/llama-3-chinese-8b-instruct-v3](https://www.modelscope.cn/models/ChineseAlpacaGroup/llama-3-chinese-8b-instruct-v3) ### 【模型更新日期】 ``` 2024-06-02 ``` ### 【模型大小】 `6.2GB` ### 【介绍】 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。 [更多详情...](https://github.com/ymcui/Chinese-LLaMA-Alpaca-3/releases/tag/v3.0) ### 【量化修复】 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。 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。 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。 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。 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。 ### 【同期量化修复模型】 | 模型名称 | 磁盘大小(GB) | |---------------------------------------------------------------------------------------------------------------------------------|----------| | [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 | | [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 | | [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 | | [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 | | [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 | | [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 | | [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 | | [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 | | [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 | ### 【模型下载】 ```python from modelscope import snapshot_download model_dir = snapshot_download('tclf90/模型名', cache_dir="本地路径") ``` ### 【[vLLM](https://github.com/vllm-project/vllm)推理(目前仅限Linux)】 #### 1. Python 简易调试 ```python from transformers import AutoTokenizer from vllm import LLM, SamplingParams max_model_len, tp_size = 4000, 1 model_name = "本地路径/tclf90/模型名称" # 例:"./my_models/tclf90/Qwen1.5-32B-Chat-GPTQ-Int3" model_name = model_name.replace('.', '___') tokenizer = AutoTokenizer.from_pretrained(model_name) llm = LLM(model=model_name, tensor_parallel_size=tp_size, max_model_len=max_model_len, trust_remote_code=True, enforce_eager=True) sampling_params = SamplingParams(temperature=0.7, max_tokens=256, stop_token_ids=[tokenizer.eos_token_id]) messages_list = [ [{"role": "user", "content": "你是谁"}], [{"role": "user", "content": "介绍一下你自己"}], [{"role": "user", "content": "用python写一个快排函数"}], ] prompt_token_ids = [tokenizer.apply_chat_template(messages, add_generation_prompt=True) for messages in messages_list] outputs = llm.generate(prompt_token_ids=prompt_token_ids, sampling_params=sampling_params) generated_text = [output.outputs[0].text for output in outputs] print(generated_text) ``` #### 2. 类ChatGPT RESTFul API Server ``` >>> python -m vllm.entrypoints.openai.api_server --model 本地路径/tclf90/模型名称 ``` ### 【Transformer推理】 ```python import torch from transformers import AutoTokenizer, AutoModelForCausalLM, GenerationConfig model_name = "本地路径/tclf90/模型名称" # 例:"./my_models/tclf90/Qwen1.5-32B-Chat-GPTQ-Int3" model_name = model_name.replace('.', '___') tokenizer = AutoTokenizer.from_pretrained(model_name, trust_remote_code=True) model = AutoModelForCausalLM.from_pretrained(model_name, trust_remote_code=True, torch_dtype=torch.bfloat16).cuda() model.generation_config = GenerationConfig.from_pretrained(model_name) model.generation_config.pad_token_id = model.generation_config.eos_token_id messages = [ {"role": "user", "content": "你好你是谁"} ] input_tensor = tokenizer.apply_chat_template(messages, add_generation_prompt=True, return_tensors="pt") outputs = model.generate(input_tensor.to(model.device), max_new_tokens=100) result = tokenizer.decode(outputs[0][input_tensor.shape[1]:], skip_special_tokens=True) print(result) ```