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Hi all .. i am a MAC user that recently bought a PC to make multi GPU renders with Octane, and i need some help... i m' very new in the Windows world.

A. Win 10 Pro version 1607
B. One 780 ti 3 gb of ram and 3 TITAN X 12 gb of ram
C. RAM Capacity 32 go
D. Nvidia driver version 21.21.13.7306
E. OctaneRender Standalone version V3.03.4
F. OctaneRender plugin version 3.03.4-R3 (19.09.2016)
G. Host application version, including build number if available Cinema 4D R18 last built

I am sending you the screenshots, when the scene freezes and strength cinema 4d to leave.
In the first document i saw that, even if i disable the 780 ti it seems that Octane continue to see only 3gb of ram available.
In the second i made a screen capture of the entire scene and the messages in the logs window.

As i'm very new to PC i really don't where to start to understand what's happening... i've almost the same configuration on my old mac pro
... three titan in an external PCI box, and with the same scene, i don't have any trouble ..

Does somebody could help me ?

All the best

Hi bphoton,
first of all, with your set up, I would leave always the 780 for display only and the Titan for Octane only.
The Priority option must to be active only on the GPU connected with monitors.
Please check in your Nvidia control panel if "Multi GPU" is active, if yes disable it while working with Octane, SLI can couse errors and issues with VRAM.
ciao beppe

Thank you for this quick reply, i'm gonna put my hands in Win and take a look at it ... you gave me very precious informations thank.. i start my test right now
Thank you

hi.. so i disabled the 780 ti from cuda in the Nvidia panel, like this i only see the three TITAN X..
SLI is not enable ... but i still have a "crash" see the attached file
Best

Hi bphoton,
could you share with us the bugreport?
Does this happen only with this specific scene or always?
could you try to export to standalone and see if the issue is present also there?

ciao beppe

Thank you again for your answer ....

- first "could you share with us the bug report?"
My main problem here, is that i can't do anything when C4D crash, i can't even copy past to the clip board the bug report.. that's why until now i give a screen capture
- I'm testing since this morning many other scenes to be sure if the problem only occur with this one
- Unfortunately i don't know how the stand alone works... i'll take a look at some tutorials tomorrow...

One i'll got more info about the scene i'll let you know

Thank you

Hi,
this is a problem on low level. Maybe driver/hardware or renderer.

1-You can find bugreport.zip. It's visible in your screenshots.
2-You can send C4D scene to us.
3-You can go to LV->File->Export->Animated ORBX to export whole animation as orbx.

Thank you Aoktar ... i will send you this this evenning... i need to collect everything properly.. the scene is itself a little bit confidential.. so i hope you'll understand i'll sent it to you via a private message ... sorry for this ...

Like i said here is the link with all the stuff i could grab here and their for the scene .....

I hope you could help onto this because i really don't understand what's happening ..

I've optimized my scene, i reduced the numbers of polygones, tried to use less displacement map
than in my first tests ..

Best

bphoton wrote:Like i said here is the link with all the stuff i could grab here and their for the scene .....

I hope you could help onto this because i really don't understand what's happening ..

I've optimized my scene, i reduced the numbers of polygones, tried to use less displacement map
than in my first tests ..

Best

@bphoton

Did you ever resolve this?

I'm having the same issue.