Get error when want to use Colossal-LLaMA-2

[zhpacer]

Discussed in https://github.com/hpcaitech/ColossalAI/discussions/5393

^{Originally posted by zhpacer February 20, 2024} CUDA: Build cuda_11.8.r11.8/compiler.31833905_0 following: https://github.com/hpcaitech/ColossalAI/tree/main/applications/Colossal-LLaMA-2 Error: utils/flash_attention_patch.py", line 22, in from colossalai.accelerator import get_accelerator ModuleNotFoundError: No module named 'colossalai.accelerator'