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Redshift Farm
show user profile  9krausec
I could of used Hanzz's thread, but I thought a new one was justified in this case.

Short: Would stacking something like Stacking 10 GTX 1080 TI cards for Redshift be a better option than buying $25k worth of CPU render servers?

Long: At the office we use Maya/Vray for all of our renderings. This is great until we need an animation done in a timely manner and are forced to kick it out to Rebus for a premium.

Considering Redshift (will be used with Houdini for this application) as a production renderer is very intriguing. I know Chaosgroup is hard at work developing GPU rendering tech, but from what I've been reading Redshift is already there.

I'm planning to personally purchase 2 GTX 1080 ti cards once the reference versions come to market as well as a demo of Redshift for testing. I figured I'd start collecting thoughts on the topic here though.

Cheers and thank you for any input!

edit: for instance, I can stack 12 GTX 1080 TI cards in 2 boxes for about 10k.





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read 334 times
3/9/2017 6:08:07 PM (last edit: 3/9/2017 6:17:44 PM)
show user profile  HANZZ
It's about cycles per dollar.

CPUs are just so far short of cards. 1 cpu will have a certain number of cores, like the i7 which is up to 10 cores. The Titan z has around 5200 cores. For a broad array of functions, the CPU is better. But for our goals of doing mountains of 3d work, dedicated 3d cards and their multiple super-streamlined 3d computing cores are a total win.

So how many CPUs can you get for 25k? (total cores)
How many GPU cores can you get in 10 gtx 1080 Ti cards?

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read 327 times
3/9/2017 6:17:38 PM (last edit: 3/9/2017 6:17:38 PM)
show user profile  HANZZ
And thanks for starting this particular thread. As I'm soon to buy a new computer entirely, this will be fascinating. Hopefully. :)


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read 325 times
3/9/2017 6:20:37 PM (last edit: 3/9/2017 8:00:38 PM)
show user profile  Ibenez22
So currently, Redshift can only use 8 cards per license. Also, it does not scale linearly like octane does. The more cards you have, the less performance per card you get.

What you can do is render a block of frames with 2 cards, and another with 2 other cards... ect.

That being said, I can render airplane cabins with difficult GI at about 5 minutes per frame. 1080.
This is only with 2 gtx 1070's
read 305 times
3/9/2017 9:55:18 PM (last edit: 3/9/2017 9:55:18 PM)
show user profile  9krausec
It looks like Deadline might support Redshift. If that's the case then it'll be perfect use to avoid what you are talking about (linear scaling).

Instead of 2 machines with 6 GTX cards in it we can opt for 3-4 machines and divide them up some. As long as Deadline works right with Houdini Redshift (need to make sure that's the case).

Interesting to note about the cap of GPU per license. Didn't know that, but good to know.





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read 303 times
3/9/2017 10:00:28 PM (last edit: 3/9/2017 10:00:28 PM)
show user profile  Ibenez22
I don't know if the cap was intentional, or a limitation of the technology.
I have not tried deadline, but have read in their forums that it is supported... for 3ds max at least.

If you ever did need to use a farm with redshift, there are some options for that as well. Can't recall of the top of my head what the provider's names are though.
read 295 times
3/10/2017 3:12:28 AM (last edit: 3/10/2017 3:12:28 AM)
show user profile  HANZZ
I'm foreseeing the next paradigm shift in rendering farms proper will be GPU based, and CPU farms going the way of the DoDo. A single $400 GPU can do the work of 4-6 $400 CPUs. I wonder if the company known as "BoXX" has pursued this yet?......

 photo MorgothArisenSig_zpsup4yjp7o.jpg

read 269 times
3/12/2017 4:06:15 AM (last edit: 3/12/2017 4:06:15 AM)
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