another ram usage problem

Tue Jul 21, 2015 6:00 pm

cards have both 6gb of ram

Tue Jul 21, 2015 6:51 pm

i render bott ways ,, with one card and with two cards... here the log files https://www.dropbox.com/s/mtx90rs9g26fg ... E.rar?dl=0

Tue Jul 21, 2015 6:52 pm

i render both ways ,, with one card and with two cards... here the log files https://www.dropbox.com/s/mtx90rs9g26fg ... E.rar?dl=0

Tue Jul 21, 2015 8:31 pm

It is really hard to say ... the report of the crash is:

00:01:22 (0082.89) | <> Mem Used/Free/Total: 0 / 5877 / 6144
00:01:22 (0082.89) | <> Triangles/DisplaceTris/Hairs/Objects rendered: 3638459 / 974 / 0 / 339967
00:01:22 (0082.89) | <> Textures RGB32/RGB64/GREY8/GREY16 used: 150 / 0 / 38 / 0
00:01:22 (0082.89) |
00:01:22 (0082.89) | ... Init rendering ...
00:01:25 (0085.02) * OCTANE API MSG: CUDA error 2 on device 0: The API was unable to allocate enough memory to perform the requested operation.
00:01:25 (0085.02) * OCTANE API MSG: -> failed to allocated device memory
00:01:25 (0085.02) * OCTANE API MSG: CUDA error 2 on device 2: The API was unable to allocate enough memory to perform the requested operation.
00:01:25 (0085.02) * OCTANE API MSG: -> failed to allocated device memory

I am not sure why Octane reports 0 Used memory. You have a lot of objects and a lot of textures, but all should work fine if it fits in the GPU memory.

Can you please render with F9 and make a screengrab of the preview window info zone while rendering to know the memory reports while rendering? ... I think that this scene is near to run out of memory with 6GB, but I don't know why it renders with only one GPU.

Can you also tell me the configuration of the out-of-memory textures that you have in the plugin options panel?

-Juanjo

Tue Jul 21, 2015 8:33 pm

One last test, can you please disable the objects with displacement textures to see how it works?

-Juanjo

Tue Jul 21, 2015 8:37 pm

it doesdnt give any info... it just says info: done
out of core
3 506

Tue Jul 21, 2015 8:39 pm

giacob wrote:it doesdnt give any info... it just says info: done

But when it works, with only one GPU.

-Juanjo

Tue Jul 21, 2015 8:43 pm

giacob wrote:it doesdnt give any info... it just says info: done
out of core
3 506

Perhaps you should test the out-of-core with more memory for the textures, something like RAM usage limit: 8 and GPU head room: 600

-Juanjo

Tue Jul 21, 2015 8:45 pm

these a critic point before render start in which memory usage goes 0/5944 ( or so) .... if it manadge to overcame that point, memory usage become 4752/1255

Tue Jul 21, 2015 8:49 pm

juanjgon wrote:
giacob wrote:it doesdnt give any info... it just says info: done
out of core
3 506
Perhaps you should test the out-of-core with more memory for the textures, something like RAM usage limit: 8 and GPU head room: 600

-Juanjo

i will try even if i am a bit afraid of that because also cpu ram usage tend to be critical and system tell that windows is running out of memory and that is necessary to close application...
the problem with f9 is also that the first render goes well but if i stop render and start a new render session system ram usage increases since system is crashing