Chinese-CodeLlama-7B-SFT-V2

We added 7k+ python code instructions and implemented SFT based on our Chinese-CodeLlama-7B-SFT-V1. Drawing on the work of code-llama, we increased the base period of rotary positional embeddings (RoPE) from 10000 to 1000000.

We use a sequence length of 1k for pre-training, and continue training based on this length during the fine-tuning stage. Based on a larger base period of RoPE, it can support up 15k context length extrapolation at inference time.

Based on this dataset (Python-test), we calculate the average of PPL on 1k length text to be 5.44. However, this value is 148.70 based on our pre-trained model.

The Chinese prompt template used is as follows:

PROMPT_TEMPLATE = (
  "下面是描述一项任务的指令，并且与一则输入配对用来提供更多的上下文。请给出尽可能满足请求的回答.\n"
  "### 指令:\n{instruction}\n### 输入:\n{input}\n### 回答:\n"
)