【MXNet报错】OSError: libnccl.so.2: cannot open shared object file: No such file or directory

解决方案

1.https://developer.nvidia.com/nccl/nccl-legacy-downloads
找到cuda 对应的NCCL版本，需要账号登录，我的是cuda11.2 +ubuntu20.04
<Download NCCL 2.8.3, for CUDA 11.2, January 06,2021>
<Local installer for Ubuntu 20.04> 下载.deb

sudo dpkg -i nccl-repo-对应版本.deb
sudo apt update
sudo apt install libnccl2=2.8.3-1+cuda11.2 libnccl-dev=2.8.3-1+cuda11.2（换成自己的版本）

参考链接

https://blog.youkuaiyun.com/weixin_45653647/article/details/116306628
https://blog.youkuaiyun.com/fyfugoyfa/article/details/124203296