Failed to allocate page-locked memory: error 2 / RTX 3080Ti Tweet

[corsac]

Hi!

I have a little issue on a new station I just got..

I'm working on Cinema4D R23 with Octane 2020 installed. I'm using a station with 2x RTX 2080 Ti GPUs and 64Go of RAM as a regular working station.
I recently bought a PC with 4x RTX 3080 Ti FE to use as a render farm for my projects. But for now it "only" has 32Go of RAM.

I was testing a couple of scenes on that new station to see if everyting was fine. Pretty soon I got some issues with one scene on that station. The scene is really heavy in texture/geometries and simulation caches. It was rendering fine on my main PC but here I keep getting this error in the log (see file below).

Let me mention that on my regular PC I have to put the out of core memory almost to the max because it won't work any other way for that scene.

But here I keep getting this error. The station has less RAM (64Go VS 32) but each card has more VRAM than the other (10go vs 12go).
Would the bug comes from the fact that I have less RAM on it?

PS : I didn't upgrade the Nvidia Drivers to the last version as I know it could create some bugs. The 4 GPUs station has the 462.65 drivers installed.

If anyone has experienced that bug, let me know!
Thank you!

[bepeg4d]

Hi,
please run the scene on the machine with 2x RTX 2080Ti 11GB, and share a similar log.
You need to check how much RAM is used for Out-of-core, and how much it is still free.

ciao Beppe

[corsac]

Thanks for the answer,

I suppose that's the infos you were looking for, see image https://www.dropbox.com/s/ctfekd8t4e68skn/OctaneLogs_2080Ti.png?dl=0

I just bought more RAM for the 4GPU's station today and now I have the exact same amount of RAM on both station; 64Go. And I still got the same error in the logs.
All the settings are the same as well. It seems that the station doesn't want to allocate any out-of-core memory at all..

Regards

[bepeg4d]

Hi,
thanks for the screenshot.
Since you have ~11GB of Out-of-core active for the scene, please try to disable the RTX acceleration, it is quite useless with Out-of-core active, and it consumes more VRAM.

ciao Beppe