旋转位置编码

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

代码中将输入的前半部分进行旋转位置编码，后半部分不做处理，直接拼接。

Expected Behavior

想知道这样做的原因

Steps To Reproduce

正常环境

Environment

- OS:Ubuntu 20.04
- Python:
- Transformers:
- PyTorch:
- CUDA Support (`python -c "import torch; print(torch.cuda.is_available())"`) :

Anything else?

No response