背景：在centos7.9服务器上，v100单卡，cuda-11.7，驱动也是匹配的，安装torch不费劲，但是tf-gpu就是不行，conda安装失败，只有pip安装，然而pip失败。woc
conda安装失败：
conda install tensorflow-gpu==2.4
Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Collecting package metadata (repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
PackagesNotFoundError: The following packages are not available from current channels:
- tensorflow-gpu==2.4
Current channels:
- https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/linux-64
- https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main/noarch
- https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/linux-64
- https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkg
