CUDA和cuDNN在Windows上的安装问题

我正在检查系统上的 CUDA 和 cuDNN 安装，并有几个观察结果：

1. CUDA有两个版本，9.0和11.2
2. 只在CUDA 9.0的安装目录下找到cuDNN
3. CUDA 9.0目录下有cudafe.exe，而CUDA 11.2目录下没有

按照目前的情况，是否需要卸载其中一个CUDA版本以避免冲突？

You can have both versions together. However, you can only use one of them a time. For cuDNN, you will need to download it from here https://developer.nvidia.com/cudnn for CUDA 11.2, and put the files in "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.2". Finally, make sure you set the system path to the desired version. For example, if you want CUDA 11.2, then open "Environment Variables", and make sure that both "CUDA_PATH" and "CUDNN" are "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.2". Also it must inside the variable "Path".