I'm trying to install cuDNN on my Ubuntu 22.10 machine, I've followed the instructions here on how to install it using the package manager.
The installation has worked fine and I was able to compile the mnistCUDNN example like in step 1.4.
But unfortunately when I run the compiled mnistCUDNN binary I get the following error:
Could not load library libcudnn_ops_infer.so.8. Error: libcublas.so.11: cannot open shared object file: No such file or directory
My LD_LIBRARY_PATH env variable is set to the following path /usr/local/cuda-12.0/lib64
When I check that directory there is a file called libcudnn_ops_infer.so.8 as well
as the following versions of libcublas.so:
libcublas.so
libcublas.so.12
libcublas.so.12.0.2.224
so there is a version 12 file but no libcublas.so.11 like in the error message.
No I'm wondering why that file is missing or why it can't work with the existing libcublas.so.12.
nvidia-smi works fine too and tells me that I have cuda version 12 running.
I don't know why but I had to manually copy the contents of the cuDNN tar file like described here in section 1.3.1 on top of the package manager installation. After doing this everything works.
$ sudo cp cudnn-*-archive/include/cudnn*.h /usr/local/cuda-12.0/include
$ sudo cp -P cudnn-*-archive/lib/libcudnn* /usr/local/cuda-12.0/lib64
$ sudo chmod a+r /usr/local/cuda-12.0/include/cudnn*.h /usr/local/cuda-12.0/lib64/libcudnn*
Make sure to check if the the directory of your cuda installation differs.
The tar file is available for download here.