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old scene slower with more cards
Posted: Mon Aug 18, 2014 3:07 pm
by Wenneker
I have a scene setup in 1.55 that I need to re-render. I'm using 2.04 for this.
Oddly enough it render "fine" when I only have 2 cards enabled at about 8Ms/sec but slows down to a crawl when I enable a third card. (0.3 Ms/sec)
It's a fairly simple scene and speeds up quite a bit when I hide/delete a few simple parts. Unfortunately I can't share the scene here because of NDA.
Re: old scene slower with more cards
Posted: Mon Aug 25, 2014 3:09 am
by FooZe
What are the 2 enabled GPU's and what is the 3rd that you are turning on?
Re: old scene slower with more cards
Posted: Tue Aug 26, 2014 10:55 am
by Wenneker
They're all gtx 780 ti cards.
It didn't matter which one I disabled.
Re: old scene slower with more cards
Posted: Tue Aug 26, 2014 9:55 pm
by FooZe
Do you have multi-gpu/SLI enabled? (If so please turn it off).
Does it happen on all scenes or just this one?
Re: old scene slower with more cards
Posted: Thu Aug 28, 2014 2:40 pm
by Wenneker
It's just one scene. Might have something to do with the fact it's started in 1.x?
I have SLI enabled. Should I disable it on all the other machines aswell? Or is it just for debugging purposes?
Re: old scene slower with more cards
Posted: Thu Aug 28, 2014 10:03 pm
by FooZe
If you don't need it for gaming then yes, disable it on all machines.
Octane doesn't need it and sometimes it causes problems, so if you don't need it for anything else it may as well be turned off.
Does turning it off help with this scene?