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Perfomace question with Riser card + many GPU

PostPosted: Fri Feb 09, 2018 1:01 am
by calvados
I consider about new rendering machine, because I use 4 CPU with 9GPU now, it consume lot of Power.
Currently, we can use Lot of GPU (may be 8) with 1 Mother board via Riser card.
But this configuration is not good for data transfer rate, it is same as PCI-Express 1 more.
My question is This situation is good for Octane Render ?
I feel that multi CPU environment with LAN is more slower than this situation, therefore no problem for Octane Render.
I have no knowledge with inside.
Please inform real result or your guess.

Re: Perfomace question with Riser card + many GPU

PostPosted: Fri Feb 09, 2018 3:13 am
by face_off
This is a general Octane question, so I suggest posting in the general Octane forum rather than the plugin forum.

Paul

Re: Perfomace question with Riser card + many GPU

PostPosted: Fri Feb 09, 2018 6:39 am
by promity

Re: Perfomace question with Riser card + many GPU

PostPosted: Mon Feb 19, 2018 1:12 am
by spartan00j
calvados wrote:I consider about new rendering machine, because I use 4 CPU with 9GPU now, it consume lot of Power.
Currently, we can use Lot of GPU (may be 8) with 1 Mother board via Riser card.
But this configuration is not good for data transfer rate, it is same as PCI-Express 1 more.
My question is This situation is good for Octane Render ?
I feel that multi CPU environment with LAN is more slower than this situation, therefore no problem for Octane Render.
I have no knowledge with inside.
Please inform real result or your guess.


I have 3 GTX 580 on risers with one motherboard. Plus I plan on adding more.
Trust me its worth it. Render score 135.99 with 3 GTX 580

Re: Perfomace question with Riser card + many GPU

PostPosted: Mon Feb 19, 2018 3:00 am
by promity
spartan00j wrote:
calvados wrote:I consider about new rendering machine, because I use 4 CPU with 9GPU now, it consume lot of Power.
Currently, we can use Lot of GPU (may be 8) with 1 Mother board via Riser card.
But this configuration is not good for data transfer rate, it is same as PCI-Express 1 more.
My question is This situation is good for Octane Render ?
I feel that multi CPU environment with LAN is more slower than this situation, therefore no problem for Octane Render.
I have no knowledge with inside.
Please inform real result or your guess.


I have 3 GTX 580 on risers with one motherboard. Plus I plan on adding more.
Trust me its worth it. Render score 135.99 with 3 GTX 580


I would advise you to sell these 580s and buy one 980Ti. The performance will remain the same, but the power consumption will be reduced about three times.

Re: Perfomace question with Riser card + many GPU

PostPosted: Mon Feb 19, 2018 3:24 am
by spartan00j
promity wrote:
spartan00j wrote:
calvados wrote:I consider about new rendering machine, because I use 4 CPU with 9GPU now, it consume lot of Power.
Currently, we can use Lot of GPU (may be 8) with 1 Mother board via Riser card.
But this configuration is not good for data transfer rate, it is same as PCI-Express 1 more.
My question is This situation is good for Octane Render ?
I feel that multi CPU environment with LAN is more slower than this situation, therefore no problem for Octane Render.
I have no knowledge with inside.
Please inform real result or your guess.


I have 3 GTX 580 on risers with one motherboard. Plus I plan on adding more.
Trust me its worth it. Render score 135.99 with 3 GTX 580


I would advise you to sell these 580s and buy one 980Ti. The performance will remain the same, but the power consumption will be reduced about three times.


Yes, I do understand that. This started out as a test. To see if the risers would work well.
And the 580's was in my budget to get with an-okay render score.
Also with testing, I figured out that you can get a GPU that has been declared unsuitable for games and still use it for GPU rendering.