Trace on Ubuntu 24.04

Dmitrii 0

I have a freshly installed SAMSON application, and I'm encountering an issue when trying to use the Trace feature. Here's what I've done:

I ran SAMSON from the terminal with the following command:
```
~/OneAngstrom/SAMSON-Application/SAMSON 
```

I opened a structure and attempted to use Trace. After pressing the button, nothing happened, and I received the following error in the terminal:

CUDA version 12.0 detected, build may succeed but only CUDA 10.1 to 11.4 are officially supported.
Compiling CUDA kernel ...
"nvcc" -arch=sm_61 --cubin "/home/dima/OneAngstrom/SAMSON-Application/5.0.6/Binaries/source/kernel/device/cuda/kernel.cu" -o "/home/dima/.cache/cycles/kernels/cycles_kernel_sm_61_914D98FC7F1BA6C7676E958E133299EE.cubin" -m64 --ptxas-options="-v" --use_fast_math -DNVCC -I"/home/dima/OneAngstrom/SAMSON-Application/5.0.6/Binaries/source"
cc1plus: fatal error: /home/dima/OneAngstrom/SAMSON-Application/5.0.6/Binaries/source/kernel/device/cuda/kernel.cu: No such file or directory
compilation terminated.
Failed to execute compilation command, see console for details.

Refer to the Cycles GPU rendering documentation for possible solutions:
https://docs.blender.org/manual/en/latest/render/cycles/gpu_rendering.html

While debugging, I found that the folder /home/dima/OneAngstrom/SAMSON-Application/5.0.6/Binaries/source/ does not exist on my system.

Does anyone have any advice on how to resolve this issue?

DmitriyMarin

Hi @Dmitrii-0 ,

Could you please tell us what NVIDIA GPU you have?

About the missing folder: we ship pre-build kernels which should be OK for most of the systems and we don't ship the source code hence the missing folder when it tries to rebuild for your GPU which might not be supported by the shipped kernels (see: https://docs.blender.org/manual/en/latest/render/cycles/gpu_rendering.html#cuda-error-kernel-compilation-failed).

Dmitrii 0

Hi @DmitriyMarin ,
Thank you for the prompt reply. I have Quadro P4000, Driver Version: 535.183.01 CUDA Version: 12.2

DmitriyMarin

Dear @Dmitrii-0 ,

Thank you for the information! We have just released a new major version of SAMSON. Could you please try updating and see whether you still have the issue? You can update directly from SAMSON via Interface menu > Update SAMSON.

Dmitrii 0

I installed the latest version (6.0.0) and the problem is still here. Does it mean that this graphic card isn't supported?

DmitriyMarin

Possibly, it is not supported with Cycles kernels (from Blender's Cycles) that we ship. We will try to see what we can do here. Or, maybe, the Cycles kernels we ship are not compatible with the CUDA version installed on your OS.