owl not able to initialize optix

[MDurgaKeerthi]

I'm using optix 8 with cuda 12.2. The code compiles fine but when I run any sample it gives following error
Optix call (optixInit()) failed with code 7804 (line 157)
I also tried using optix 9.1 and optix 7.7 but I'm still getting the same error. And the gpu I'm running this on is 4070 ti. I'm not sure what is it that I'm missing, because in the past the samples ran just fine with optix 8 and 7.7. Please help me get the samples running.

[iwald-nvidia]

Can you tell me a bit more about the HW/OS/driver setup you're trying to use that in?
Reason I ask is that any "optixInit()" related errors are almost certainly not related to OWL, but to some driver/install related problem.
To explain: Optix itself - ie, the implementation of optix - comes as part of the driver; the OptiX API (and thus OWL, which builds on top of the optix api) just calls into that driver to make optix do the things it does, but it's the driver that does the work. However, even though optix comes with the driver it only get loaded by the driver "on demand" (when optixInit() gets called), and if for some reason the driver can't do that it throws these types of error messages. So, almost certainly something is wrong with your driver install, but I can't easily tell you what.

One option is some incompatibilty with driver and cuda (eg, old driver and new cuda); another seems to be related to docker scripts that install only part of the driver; also see here:
NVIDIA/nvidia-container-toolkit#187
owl-project/NVISII#107

[MDurgaKeerthi]

Ubuntu 22.04.5 LTS (GNU/Linux 5.15.0-164-generic x86_64)
cuda driver - 580.95.05 . cuda 13 is globally installed but I'm using cuda 12.2 with owl.
I am not using any docker, I'm running inside Conda env. (I just realized Optix 9 will need 590 driver, so that explains why I'm getting error with optix 9)

[IrfanNafiz]

Recreated this issue on win11 3060 gpu. Fixed by upgrading to latest nvidia drivers (590.86).

[iwald-nvidia]

Ah, good to know. So "7804" then pretty much means "optix version too new for installed driver". Thanks guys!