xtuner/Llama-2-7b-qlora-moss-003-sft

Model

Llama-2-7b-qlora-moss-003-sft is fine-tuned from Llama-2-7b with moss-003-sft dataset by XTuner.

Quickstart

Usage with HuggingFace libraries

import torch
from peft import PeftModel
from transformers import AutoModelForCausalLM, AutoTokenizer, BitsAndBytesConfig, StoppingCriteria
from transformers.generation import GenerationConfig

class StopWordStoppingCriteria(StoppingCriteria):
    def __init__(self, tokenizer, stop_word):
        self.tokenizer = tokenizer
        self.stop_word = stop_word
        self.length = len(self.stop_word)
    def __call__(self, input_ids, *args, **kwargs) -> bool:
        cur_text = self.tokenizer.decode(input_ids[0])
        cur_text = cur_text.replace('\r', '').replace('\n', '')
        return cur_text[-self.length:] == self.stop_word

tokenizer = AutoTokenizer.from_pretrained('meta-llama/Llama-2-7b-hf', trust_remote_code=True)
quantization_config = BitsAndBytesConfig(load_in_4bit=True, load_in_8bit=False, llm_int8_threshold=6.0, llm_int8_has_fp16_weight=False, bnb_4bit_compute_dtype=torch.float16, bnb_4bit_use_double_quant=True, bnb_4bit_quant_type='nf4')
model = AutoModelForCausalLM.from_pretrained('meta-llama/Llama-2-7b-hf', quantization_config=quantization_config, device_map='auto', trust_remote_code=True).eval()
model = PeftModel.from_pretrained(model, 'xtuner/Llama-2-7b-qlora-moss-003-sft')
gen_config = GenerationConfig(max_new_tokens=1024, do_sample=True, temperature=0.1, top_p=0.75, top_k=40)

# Note: In this example, we disable the use of plugins because the API depends on additional implementations.
# If you want to experience plugins, please refer to XTuner CLI!
prompt_template = (
    'You are an AI assistant whose name is Llama2.\n'
    'Capabilities and tools that Llama2 can possess.\n'
    '- Inner thoughts: disabled.\n'
    '- Web search: disabled.\n'
    '- Calculator: disabled.\n'
    '- Equation solver: disabled.\n'
    '- Text-to-image: disabled.\n'
    '- Image edition: disabled.\n'
    '- Text-to-speech: disabled.\n'
    '<|Human|>: {input}<eoh>\n'
    '<|Inner Thoughts|>: None<eot>\n'
    '<|Commands|>: None<eoc>\n'
    '<|Results|>: None<eor>\n')

text = '请给我介绍五个上海的景点'
inputs = tokenizer(prompt_template.format(input=text), return_tensors='pt')
inputs = inputs.to(model.device)
pred = model.generate(**inputs, generation_config=gen_config, stopping_criteria=[StopWordStoppingCriteria(tokenizer, '<eom>')])
print(tokenizer.decode(pred.cpu()[0], skip_special_tokens=True))
"""
好的，以下是五个上海的景点：
1. 外滩：外滩是上海的标志性景点之一，是一条长达1.5公里的沿江大道，沿途有许多历史建筑和现代化的高楼大厦。游客可以欣赏到黄浦江两岸的美景，还可以在这里拍照留念。
2. 上海博物馆：上海博物馆是上海市最大的博物馆之一，收藏了大量的历史文物和艺术品。博物馆内有许多展览，包括中国古代文物、近代艺术品和现代艺术品等。
3. 上海科技馆：上海科技馆是一座以科技为主题的博物馆，展示了许多科技产品和科技发展的历史。游客可以在这里了解到许多有趣的科技知识，还可以参加一些科技体验活动。
4. 上海迪士尼乐园：上海迪士尼乐园是中国第一个迪士尼乐园，是一个集游乐、购物、餐饮、娱乐等多种功能于一体的主题公园。游客可以在这里体验到迪士尼的经典故事和游乐设施。
5. 上海野生动物园：上海野生动物园是一座以野生动物观赏和保护为主题的大型动物园。它位于上海市浦东新区，是中国最大的野生动物园之一。
"""

Usage with XTuner CLI

Installation

pip install -U xtuner

Chat

Don't forget to use huggingface-cli login and input your access token first to access Llama2! See here to learn how to obtain your access token.

export SERPER_API_KEY="xxx"  # Please get the key from https://serper.dev to support google search!
xtuner chat meta-llama/Llama-2-7b-hf --adapter xtuner/Llama-2-7b-qlora-moss-003-sft --bot-name Llama2 --prompt-template moss_sft --system-template moss_sft --with-plugins calculate solve search --no-streamer

Fine-tune

Use the following command to quickly reproduce the fine-tuning results.

NPROC_PER_NODE=8 xtuner train llama2_7b_qlora_moss_sft_all_e2_gpu8