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mult gpu setup
Posted: Fri Sep 09, 2011 7:38 pm
by rloncohen
hi,
i am just putting together my octane box. i have a evga gfx580 3 gb and a evga gfx 560 2gb. what is the best way to deal with the driver issues? oh the 560 will have monitors attached.
thanks much for any guidence.
rich
Re: mult gpu setup
Posted: Fri Sep 16, 2011 2:01 am
by radiance
Just install the latest drivers from
www.nvidia.com for Geforce cards and you should be ok.
Both are Geforce so they will work together nicely with octane.
Radiance
Re: mult gpu setup
Posted: Wed Sep 21, 2011 4:23 pm
by smicha
radiance wrote:Just install the latest drivers from
http://www.nvidia.com for Geforce cards and you should be ok.
Both are Geforce so they will work together nicely with octane.
Radiance
Next week I am ordering gtx 580 3gb. I am thinking about buying additional gtx 580 3gb. Could you please advice me how faster Octane is with 2 card vs with 1 card. Is 1350W power supply enough for 2 these two cards?
Re: mult gpu setup
Posted: Fri Sep 23, 2011 3:23 am
by radiance
smicha wrote:radiance wrote:Just install the latest drivers from
http://www.nvidia.com for Geforce cards and you should be ok.
Both are Geforce so they will work together nicely with octane.
Radiance
Next week I am ordering gtx 580 3gb. I am thinking about buying additional gtx 580 3gb. Could you please advice me how faster Octane is with 2 card vs with 1 card. Is 1350W power supply enough for 2 these two cards?
Hi, octane scales linear as of 2.5x, so the speedup is 2x for 2 cards,
800 watt or more should be enough for 2x GTX580, but I would get a 1000 to be prepared.
Radiance
Re: mult gpu setup
Posted: Fri Sep 23, 2011 12:09 pm
by steveps3
You could get away with a 600W PSU. The latest cards are pretty efficient. I think the 560 only draws about 160watts
Re: mult gpu setup
Posted: Sun Sep 25, 2011 4:02 pm
by cameo
Hi sorry for borrowing your thread rloncohen but I have my own question about multi gpu setup I hope someone would
be kind enough to answer.
I'm thinking of using two different cards where one is just a cheap option to use as the display card. Now in Octane
I'm aware that it's possible to specify the non-display card for rendering in the prefs. I'm just wondering how you would go
about this in other programs be it photoshop/maya/max etc, how would they know which card to use as I don't remember
seeing a similar option in those programs and obviously I want those to use the powerfulc card also?
Can anyone who runs a setup like this and uses maya/max/photoshop on the same machien explain how this works in practice?
Many thanks
Re: mult gpu setup
Posted: Fri Sep 30, 2011 1:06 am
by cameo
Anyone?
Would be a great help to me.
Re: mult gpu setup
Posted: Fri Sep 30, 2011 9:28 am
by Jaberwocky
I tried it with an ATI card as the display card and my GTX460 running headless ( IE the monitors were running off the ATI card.)
The system will use which ever driver is running the monitor and ignore the headless card.Therefore Photoshop and every other program will just use whatever card is powering the monitors.
Hope that explanation helps
Jabba
Re: mult gpu setup
Posted: Fri Sep 30, 2011 12:33 pm
by t_3
Jaberwocky wrote:I tried it with an ATI card as the display card and my GTX460 running headless ( IE the monitors were running off the ATI card.)
The system will use which ever driver is running the monitor and ignore the headless card.Therefore Photoshop and every other program will just use whatever card is powering the monitors.
Hope that explanation helps
Jabba
in fact it's the nvidia driver that blocks any access to the cuda/physx implementation if it finds a non-nvidia card in the system. there are hacks to avoid that, but in general you shouldn't mix ati and nvidia.
a headless card on the other hand is no problem whatsoever. i even run complete headless systems without any problem...