LoRA半精度微调

[dayunyan]

Describe the bug/ 问题描述 (Mandatory / 必填)
如何使用mindnlp实现LoRA的半精度微调？在

• Hardware Environment(Ascend/GPU/CPU) / 硬件环境:

Please delete the backend not involved / 请删除不涉及的后端:
GPU

• Software Environment / 软件环境 (Mandatory / 必填):
  -- MindSpore version (e.g., 1.7.0.Bxxx) :2.3.1
  -- Python version (e.g., Python 3.7.5) :3.9
  -- OS platform and distribution (e.g., Linux Ubuntu 16.04): ubuntu22.04
  -- GCC/Compiler version (if compiled from source):

• Excute Mode / 执行模式 (Mandatory / 必填)(PyNative/Graph):

Please delete the mode not involved / 请删除不涉及的模式:
/mode pynative

To Reproduce / 重现步骤 (Mandatory / 必填)
Steps to reproduce the behavior:

1. 
2. 
3. 
4. See error

Expected behavior / 预期结果 (Mandatory / 必填)
成功运行

Screenshots/ 日志 / 截图 (Mandatory / 必填)

Additional context / 备注 (Optional / 选填)
Add any other context about the problem here.