Neural Depth Optimization Error on RTX 5090 — ZED SDK 4.2.5 + CUDA 11.8

Software
1

Hi everyone,

I recently installed ZED SDK 4.2.5 and ran into an error during what appears to be the Neural Depth mode optimization process. A diagnostic popup appeared with the following message:

Errors occurred during the optimization process.
neural_depth_3.6 => 2
neural_depth_3.6 => 2

I’m not entirely sure what’s causing this. My first guess was a CUDA version mismatch, but I checked the official compatibility page and CUDA 11.8 is listed as supported for ZED SDK 4.2, so I don’t think that’s the issue.

One thing I’m wondering about — I’m currently running an RTX 5090 (Blackwell architecture). Could this be the problem? Since the 5090 is a very recent GPU, I’m thinking the SDK might not have fully optimized support for it yet, and the Neural Depth model optimization might be failing because of that.

Has anyone else experienced this, especially on newer GPUs? Any insight into what this error actually means or how to resolve it would be really appreciated.

Thanks in advance!

System Info:

  • GPU: NVIDIA RTX 5090
  • ZED SDK: 4.2.5
  • CUDA: 11.8
  • OS: Windows

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2

Hi @ssm923,

Starting with ZED SDK 5.1, Blackwell GPUs require to have CUDA >=12, but this should not impact ZED SDK versions lower.

Can you try installing for CUDA 12 to see if this helps?

3

I tried installing CUDA 12.8, but still same error happens. It seems ZED Diagnostics finds the installed SDK and CUDA well, but it does not allow me to optimize any of AI models.

This problem occured right after I changed my PC (RTX 3050 → 5080 (not 5090)). Everything worked well before. Is this might be a GPU problem or any possible solutions?

4

Could you share the JSON diagnostic file from ZED_Diagnostic_Tool?