Failed to load OptiX kernel OPTIX_ERROR_DISK_CACHE_INVALID_DATA #102870

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Alexandr · 2022-11-30T09:56:33+01:00

Alexandr commented

2022-11-30 09:56:33 +01:00

System Information
Operating system: Debian Testing
Graphics card: RTX 3090 + RTX 3050 Ti (laptop)

Blender Version
Broken: 3.3.2

Short description of error
I recently bought external RTX 3090 videocard, and when i switched Cycles to RTX 3090, it says:

Failed to load OptiX kernel from '/home/scaled/git/blender-git/build_linux_release/bin/3.3/scripts/addons/cycles/lib/kernel_optix.ptx' (OPTIX_ERROR_DISK_CACHE_INVALID_DATA)

I hide directory /var/tmp/OptixCache_scaled and videocard started normally. But when i switched back to my laptop GPU (RTX 3050 Ti), it said same error. I returned my old cache directory back (/var/tmp/OptixCache_scaled) and it started normally.

Then i decided to enable both videocards at the same time in hope it will generate cache for both videocards, so i will not have to move cache directories around every time i go outside with my laptop, but i got same error, and cache generated only for first videocard in the list (RTX 3090).

By the way, when i tested GTX 1080 in this external box, it don't created cache problems, so i think it happens when using different videocards of one generation.

Exact steps for others to reproduce the error

Setup Cycles to use Optix with one videocard.
Turn on Cycles renderer and wait until cache is generated.
Turn off Cycles and select second videocard for Cycles.
Cycles will not turn on because cache conflict.

**System Information** Operating system: Debian Testing Graphics card: RTX 3090 + RTX 3050 Ti (laptop) ![изображение.png](https://archive.blender.org/developer/F13981545/изображение.png) **Blender Version** Broken: 3.3.2 **Short description of error** I recently bought external RTX 3090 videocard, and when i switched Cycles to RTX 3090, it says: ``` Failed to load OptiX kernel from '/home/scaled/git/blender-git/build_linux_release/bin/3.3/scripts/addons/cycles/lib/kernel_optix.ptx' (OPTIX_ERROR_DISK_CACHE_INVALID_DATA) ``` I hide directory /var/tmp/OptixCache_scaled and videocard started normally. But when i switched back to my laptop GPU (RTX 3050 Ti), it said same error. I returned my old cache directory back (/var/tmp/OptixCache_scaled) and it started normally. Then i decided to enable both videocards at the same time in hope it will generate cache for both videocards, so i will not have to move cache directories around every time i go outside with my laptop, but i got same error, and cache generated only for first videocard in the list (RTX 3090). By the way, when i tested GTX 1080 in this external box, it don't created cache problems, so i think it happens when using different videocards of one generation. **Exact steps for others to reproduce the error** 1. Setup Cycles to use Optix with one videocard. 2. Turn on Cycles renderer and wait until cache is generated. 3. Turn off Cycles and select second videocard for Cycles. 4. Cycles will not turn on because cache conflict.

Alexandr commented

2022-11-30 09:56:33 +01:00

Added subscriber: @scaled

Pratik Borhade commented

2022-11-30 11:00:04 +01:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2022-11-30 11:00:04 +01:00

Looks related to #102628 (OPTIX fails to load kernel cache error on 2 GPUs loading kernel error 7013 OPTIX_ERROR_DISK_CACHE_INVALID_DATA)

Alexandr commented

2022-11-30 11:04:00 +01:00

Oops, sorry, i don't know why i not found it when i searched for the problem. It definitely related, but OS is different.

Pratik Borhade commented

2022-11-30 14:37:12 +01:00

Changed status from 'Needs Triage' to: 'Needs Developer To Reproduce'

Pratik Borhade commented

2022-11-30 14:37:12 +01:00

Added subscriber: @pmoursnv

Pratik Borhade commented

2022-11-30 14:37:12 +01:00

@pmoursnv hi, can you check whether they are related?

Patrick Mours commented

2022-11-30 14:49:48 +01:00

Yep, this is a duplicate of #102628 (different cards that are of the same GPU generation, 3050Ti and 3090). It's not specific to a particular OS.

Pratik Borhade commented

2022-11-30 14:50:50 +01:00

Thanks for the info. I'll merge this report :)

Pratik Borhade commented

2022-11-30 14:51:05 +01:00

Closed as duplicate of #102628

Pratik Borhade closed this issue

2022-11-30 14:51:05 +01:00

Alexandr commented

2022-12-08 21:24:17 +01:00

https://developer.blender.org/T102628

The bug was solved. The new NVIDIA STUDIO driver 527.56 downloaded and installed today as solved the issue (OPTIX with 2 different GPUs working in CYCLES 3.5). Thanks for your support.

Windows issue was resolved, but Linux one is not. Linux don't have Studio drivers and don't have this exact version of driver. Please reopen it until new Linux driver will released.

https://developer.blender.org/T102628 > The bug was solved. The new NVIDIA STUDIO driver 527.56 downloaded and installed today as solved the issue (OPTIX with 2 different GPUs working in CYCLES 3.5). Thanks for your support. Windows issue was resolved, but Linux one is not. Linux don't have Studio drivers and don't have this exact version of driver. Please reopen it until new Linux driver will released.

Pratik Borhade commented

2022-12-09 05:07:59 +01:00

Changed status from 'Duplicate' to: 'Confirmed'

Pratik Borhade reopened this issue

2022-12-09 05:07:59 +01:00

Philipp Oeser removed the

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Failed to load OptiX kernel OPTIX_ERROR_DISK_CACHE_INVALID_DATA #102870