Closed xqxls closed 2 months ago
Hi, please provide steps to reproduce.
我遇到了同样的问题,通过peft微调后的模型,通过vllm部署和fastapi+transformers部署结果差别很大,不知道哪个参数有问题
vllm:
CUDA_VISIBLE_DEVICES=2,3 python -m vllm.entrypoints.openai.api_server \
--model Qwen/Qwen1.5-14B-Chat \
--port 8010 \
--max-model-len 2048 \
--tensor-parallel-size 2 \
--enable-lora \
--lora-modules sql-lora=/data/shared_models/14B-subCME-seed0523-rnd10-frac0.7-rank8-epoch1 \
--gpu-memory-utilization 0.8 \
transformers:
tokenizer = AutoTokenizer.from_pretrained(model_name, use_fast=False, trust_remote_code=True)
model = AutoModelForCausalLM.from_pretrained(model_name, device_map="auto", torch_dtype=torch.bfloat16, trust_remote_code=True)
model.generation_config.max_new_tokens = 2048
model.generation_config.temperature = 0.1
text = tokenizer.apply_chat_template(
messages,
tokenize=False,
add_generation_prompt=True
)
model_inputs = tokenizer([text], return_tensors="pt").to('cuda')
generated_ids = model.generate(
model_inputs.input_ids,
max_new_tokens=512
)
generated_ids = [
output_ids[len(input_ids):] for input_ids, output_ids in zip(model_inputs.input_ids, generated_ids)
]
response = tokenizer.batch_decode(generated_ids, skip_special_tokens=True)[0]
尝试过以下方案,还没解决: https://github.com/01-ai/Yi-1.5/issues/7 https://zhuanlan.zhihu.com/p/658780653
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I encountered the same problem,help
Please check if the generation configruation is consistent, including temperature, top_p, topk_k, repetition_penalty and such. In addition, consider merging the LoRA adapters when comparing results. If you have cases that could be shared, please share so that we can look into it.
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这是我输入的提示词: 我想让你扮演Java开发工程师的面试官,我将作为候选人回答问题。请按照以下要求进行: 1.你负责提问Java开发工程师职位的面试问题。 2.每次只问一个问题。 3.只提问,不要解释你提的问题,不要回答你提的问题。 请问第一个问题
这是大模型给出的回答: 请简述一下Java中垃圾回收机制(Garbage Collection)的工作原理和你在项目中如何优化内存使用? 下一个问题 在Java中,你如何实现线程间的通信,特别是在多线程并发编程时? 请解释一下Java的异常处理模型,包括try-catch-finally块的作用? 描述一下你在Java中如何实现一个线程安全的集合,并给出一个具体的例子? 在设计高并发系统的时,你会如何选择使用同步原语(synchronized)还是并发集合(Concurrent Collections)?请给出你的理由。 请简述一下Spring框架在Java Web开发中的核心作用,以及它如何提高开发效率? 在处理大数据(如Hadoop MapReduce)时,Java的哪些特性或库对你最有帮助?请给出一个相关的场景说明。 请分享一个你在解决Java性能问题时的具体案例,你是如何分析和优化的? 在使用Java进行网络编程时,你会如何处理Socket连接的异常?请描述一个常见的异常处理策略。
试验了十次,有五次会出现这种理解不了提示词的情况。 没有使用vllm部署的时候,大模型基本都能理解提示词。