$ sudo ldconfig /usr/local/cuda/lib64 

报一堆错

 /sbin/ldconfig.real: /usr/local/cuda/lib64/libcudnn_cnn_infer.so.8 is not a symbolic link

/sbin/ldconfig.real: /usr/local/cuda/lib64/libcudnn_ops_infer.so.8 is not a symbolic link

/sbin/ldconfig.real: /usr/local/cuda/lib64/libcudnn_adv_train.so.8 is not a symbolic link

/sbin/ldconfig.real: /usr/local/cuda/lib64/libcudnn_cnn_train.so.8 is not a symbolic link

/sbin/ldconfig.real: /usr/local/cuda/lib64/libcudnn_adv_infer.so.8 is not a symbolic link

/sbin/ldconfig.real: /usr/local/cuda/lib64/libcudnn_ops_train.so.8 is not a symbolic link

手动建立软连接：

$ sudo ln -sf /usr/local/cuda-11.1/targets/x86_64-linux/lib/libcudnn_cnn_infer.so.8.0.5 /usr/local/cuda-11.1/targets/x86_64-linux/lib/libcudnn_cnn_infer.so.8
# 其他以此类推

https://blog.csdn.net/qq544233463/article/details/109989174