Page 3 of 3
Re: Multi GPU / One Frame for one GPU
Posted: Thu Jun 16, 2016 9:33 pm
by karanis
Reason why I got involved in this post was :
I know the expectations of spending money on GPU`s and waiting for the best result. It is a naive willing, like in our childhood times. It`s like to have Santa before Christmas.
I`ve read carefully and imagined the situation in order to be of help with my knowledge.
I`ve surely did see the picture and read everything. I`ve also spent time to crosscheck myself to verify that I`m not mistaken.
We`re here to share ideas and provide help and solutions to each other in a such talented community.
But you`ve spent your wise word at last. It`s hopeless, at least for this case.
Your solution lies on to use lua scripting on your exported scenes for standalone and revising your topology. But I still can not understand why you are trying to use distributed / multi GPU rendering on a 2 seconds/frame scene.
Regards
Re: Multi GPU / One Frame for one GPU
Posted: Fri Jun 17, 2016 7:58 am
by calus
karanis wrote: But I still can not understand why you are trying to use distributed / multi GPU rendering on a 2 seconds/frame scene.
As NVN already explained, this is just an extreme example to highlight the problem.
Re: Multi GPU / One Frame for one GPU
Posted: Fri Jun 17, 2016 12:10 pm
by acc24ex
OK, yeah I also ran into the problem where my export times are higher than render times.. this user case probably happens more than we think..
- there should at least be a try at the problem ..
- maybe lua scripting, but there are plenty of other things to fix here as well
Re: Multi GPU / One Frame for one GPU
Posted: Mon Jun 20, 2016 9:56 pm
by karanis
2 things to do for this theoratical approach
1.) Use RamDisk (In Linux it`s built-in and easy to deply, on M$ there are free alternatives)
Load scene with assets from the RamDisk and save render outputs to RamDisk
2.) Use InfiniBand for communication
------
My approach :
Do not use Octane if your frame takes less than 2 secs to render on a single GPU (580+).
Re: Multi GPU / One Frame for one GPU
Posted: Mon Jun 20, 2016 10:10 pm
by aoktar
acc24ex wrote:OK, yeah I also ran into the problem where my export times are higher than render times.. this user case probably happens more than we think..
- there should at least be a try at the problem ..
- maybe lua scripting, but there are plenty of other things to fix here as well
It's possible just for first frames with proper setup. Otherwise it not easily happens because we don't recreate the geometry without necessary. Of course scene should correctly be setted.