another ram usage problem

Tue Jul 21, 2015 9:39 pm

giacob wrote:could be an hardware problem?

I was thinking the same ... could be. If you work with only one GPU, do you have also the CPU memory leak?

Tue Jul 21, 2015 9:45 pm

juanjgon wrote:
giacob wrote:could be an hardware problem?
I was thinking the same ... could be. If you work with only one GPU, do you have also the CPU memory leak?

memory leak disappear only when using ipr ,,, with one gpu i can render the first time but it chashes the second, while ipr works fine...... with both gpu i cant neither render nor ipr

Tue Jul 21, 2015 9:49 pm

Are you rendering in update mode? What happens if you render in full scene reload mode? (Always with only one GPU, I am now trying to figure the source of the memory leak)

Like in the realflow scene, if you disable the deformations MB, all works fine?

-Juanjo

Tue Jul 21, 2015 9:55 pm

mb is disabled, i am already in full scene reload , disabled istances and clay render......

Tue Jul 21, 2015 10:00 pm

Can you remove all the texture maps in the scene? ... you can set the project image folder to an empty one to try to don't load the textures.

Tue Jul 21, 2015 10:03 pm

One thing. Do you have all the LW color space settings disabled, specially one option called "Convert 8-bit to float"? ... this option enabled could eat a lot of CPU memory while rendering with Octane.

-Juanjo

Tue Jul 21, 2015 10:13 pm

it works without textures but it seems too obvius to me ....the scene is quite less heavy so its natural ....
yes is all set to linear

Tue Jul 21, 2015 10:16 pm

Perhaps one texture is corrupted, or you have the "Convert 8-bit to float" option enabled in the LW CS options.

If you have textures large the 4k you could try to remove them to see what happens.

So in short: can your full scene without textures be rendered without problems using both GPUs and without the memory leak?

Tue Jul 21, 2015 10:21 pm

a mistery though remain: why one 6gb gpu can render what 2 x 6gb gpus dont?

Tue Jul 21, 2015 10:25 pm

Really I don't know. It is a weird issue, I never have seen something like this.

What happens if you try to export the scene from the IPR (with only one GPU enabled to avoid the crash problem) as an .orbx file and you load it in Standalone? In Standalone can you render the scene with both GPUs enabled?

This is a test to know if we have a Octane problem, or to know if the problem is in the LW plugin. Enable the IPR and while it is rendering, export the scene to an .orbx file using the option in the main menu tab. This .orbx is a snapshot of the scene with all the objects and texture maps, that can be loaded in Standalone.

-Juanjo