Installing cudnn9 for CUDA 11.8

[software54]

Hi, I am trying to install cudnn9 to match with my CUDA 11.8 installed.
as per the link, it says cudnn9 is compatible with CUDA 11.8: link

I am facing an issue whereby the steps provided in the link below cause the system to install cudnn9.4.0 with CUDA 12.6:

cuDNN 9.4.0 Downloads

How can I install cudnn 9.4.0 to be statically linked with CUDA11.8 for my Jetson Orin Nx ?

my system versions:
Ubuntu 20.04
Jetpack 5.1.3, L4T: 35.5.0
CUDA 11.8.89

Below is the current install information from the steps to install cudnn9
ii cudnn9-cuda-12 9.4.0.58-1 arm64 NVIDIA cuDNN for CUDA 12
ii cudnn9-cuda-12-6 9.4.0.58-1 arm64 NVIDIA cuDNN for CUDA 12.6
ii libcudnn9-cuda-12 9.4.0.58-1 arm64 cuDNN runtime libraries for CUDA 12.6
ii libcudnn9-dev-cuda-12 9.4.0.58-1 arm64 cuDNN development headers and symlinks for CUDA 12.6
ii libcudnn9-static-cuda-12 9.4.0.58-1 arm64 cuDNN static libraries for CUDA 12.6
ii nvidia-l4t-cuda 35.5.0-20240219203809 arm64 NVIDIA CUDA Package

[AastaLLL]

Hi,

We don’t have a combination of cuDNN 9 + CUDA 11.8.

JetPack 5 only supports the CUDA package upgrade.
For other packages, ex cuDNN or TensorRT, the upgradable feature is added in the JetPack 6.

Please note that the JetPack 6 supports CUDA 12.2+, no CUDA 11 is available.

Thanks.

[software54]

could you please confirm and clarify what the contents in the links I sent in relation to the compatibility of the libraries?

cuDNN9 corresponds to cuDNN 9.4.0. correct?

link1: Installing cuDNN on Linux — NVIDIA cuDNN v9.4.0 documentation

from the support matrix cuDNN 9.4.0 + 11.x , where it shows 11.8 as compatible
link2: Support Matrix — NVIDIA cuDNN v9.4.0 documentation

[software54]

hi @AastaLLL any update on this?

[AastaLLL]

Hi,

We need to check with our internal team.
Will share more info with you.

Thank.

[AastaLLL]

Hi,

Please upgrade to JetPack 6 to get the cuDNN 9.x support.

Thanks.

[software54]

Hi @AastaLLL

I’m seeing some inconsistencies which were still not addressed. The document mentions CUDA 11.X is compatible with cuDNN 9.4.0, please clarify, otherwise please confirm the document requires an update.

I understand as you mention to upgrade to JetPack 6.0 to get cuDNN 9.x support. However this does not solve my current issue as I require Jetpack 5.X which seems to be associated with ubuntu 20.04. Is there a way to get ubuntu 20.04 with Jetpack 6.0 via the SDK manager? I was not able to find a way of specifying the version.

I require the ubuntu 20.04 as it matches with my current ROS 1 version (ros noetic).

appreciate your insight on this, so I know a reliable source for documentation referencing.

[AastaLLL]

Hi,

Unfortunately, we don’t have a cuDNN 9 package for JetPack 5 users.
Our internal team will verify the document again.

Thanks.