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关于权重合并 about llms_tool HOT 1 CLOSED

stanleylsx avatar stanleylsx commented on July 1, 2024
关于权重合并

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stanleylsx avatar stanleylsx commented on July 1, 2024

目前项目只支持lora的权重合并吗？prompt tuning和prefix tuning的权重没有如何合并和加载呢？使用prompt tuning和prefix tuning微调后的模型在使用merge_peft_model会出错

AttributeError: 'QWenLMHeadModel' object has no attribute 'merge_and_unload'

https://github.com/huggingface/peft/blob/main/src/peft/tuners/lora.py#L790
已经修改，prompt tuning和prefix tuning是模型前缀微调，直接通过PeftModel.from_pretrained(model, adapter_dir)加载即可，lora是在模型的线性层旁路添加一个低秩矩阵微调，可以进行合并成为新的base模型（同官方对该函数的解释）

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