Memory usage confusion

[sadece]

Hi all
in my workflow never exceed 6Gb but today. i have titan and 780 both 6gb. 780 is the primary, so connected to display.
what i couldnt understand is 780 is using almost 6gb of all while titan around 1.5gb. should they use smilar amout of memory,shouldnt they?

i hadnt noticed that 780 was running on the edge until i enabled AO and z depth channels under render passes tab. it failed rendering! dark screen for a while then c4d crashes.and says nvidia drivers stopped responding. btw nowadays after updating 16.050 or latest nvidia drivers, i sometimes having same crash no matter if i work or just surf on internet.(c4d oppened in the backgrond always)
someone has any opinnion?
cheers Hüseyin

[bepeg4d]

hi Hüseyin,
maybe it's not your case, but have you disable the "Multy-GPU" option in Nvidia control panel?
If enabled, sometimes it gives some troubles with the correct usage of VRAM
The best setup for Octane is always to have a dedicated GPU for displays only, in this way the VRAM dedicated to Octane is not reduced by the system and display
ciao beppe

p.s. Sorry for the italian screenshot

[sadece]

thanks Beppe. yes the best having a gpu only for display but sametime it is waste of an empty slot. btw possible to dedicate cpu for this job with new intel cpus, ain't it?

[bepeg4d]

Hi,
we can already use the iGPU inside CPU for display, from what I have understood, when Octane 3 will arrive, we should be able to use the iGPU also for calculating the render beside the ATI and OpenCL support

ciao beppe