Octane Render: Critical - 3 render engine failures

[osiosiosi]

Hey

Hopefully somebody can help me with good advise.

I get this popup error here:

3 render engine failures within a minute - giving up! (CRITICAL);
You should now save your work and restart DAZ Studio!
If this error persists, the GPU might have crashed.

After downgrading my GPU drivers and searching for possible reasons i checked the logfile:

23:27:55.760: +++++ Plugin running.
23:54:09.907: Failed to allocate page-locked memory
23:54:09.907: CUDA error 2 on device 2: out of memory
23:54:09.908: -> failed to deallocate device memory
23:54:09.908: CUDA error 2 on device 2: out of memory
23:54:09.908: Failed to allocate page-locked memory
23:54:09.908: -> could not get memory info
23:54:09.908: device 2: failed to upload data texture 29 of context 0
23:54:09.915: Failed to allocate page-locked memory
23:54:09.915: No device pointer for out-of-core memory 0000005151DBD060
23:54:09.916: CUDA error 2 on device 3: out of memory
23:54:09.916: CUDA error 2 on device 1: out of memory
23:54:09.916: -> failed to deallocate device memory
23:54:09.916: -> failed to deallocate device memory
23:54:09.916: CUDA error 2 on device 3: out of memory
23:54:09.916: CUDA error 2 on device 1: out of memory
23:54:09.917: -> could not get memory info
23:54:09.917: device 1: failed to upload data texture 29 of context 0
23:54:09.917: CUDA error 2 on device 0: out of memory
23:54:09.917: -> could not get memory info
23:54:09.917: device 3: failed to upload data texture 29 of context 0
23:54:09.918: -> failed to deallocate device memory
23:54:09.918: CUDA error 2 on device 0: out of memory
23:54:09.918: -> could not get memory info
23:54:09.918: device 0: failed to upload data texture 29 of context 0
23:54:09.920: Render engine failure occured! (WARNING)
23:54:12.919: Render engine failure occured! (WARNING)
23:54:15.924: Render engine failure occured! (WARNING)
23:54:19.012: 3 render engine failures within a minute - giving up! (CRITICAL)

This scene has loads about 10gb of data in sys memory. Out-Of-Core mem is set to 30gb and there is still about 60gb free.

The scene loads fine but when i start too look arround this error always shows up ....

Any idea how to solve this?

Thx

[mojave]

Out of core in Octane before v4 appliest to textures only, so if your scene is geometry heavy it may not fit in your GPU VRAM, which seems to be the problem here.

Note that when use multiple GPUs the smallest VRAM size from all that you enable with Octane will be set the maximum, you may enable just those with higher memory if that helps.

[osiosiosi]

Thx for your answer but this makes somehow no sense.

I am rendering on 4 cards atm. 3 x 1080TI and 1 x TitantXP. Geometry data is the way smnaller part of the scene. I would assume that Octane manages it to distribute the geometry data to the gfx memory alone.

Something here is wrong

Btw i am on DAZ 4.10