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Octane not recognising graphics card

Posted: Mon Mar 07, 2016 3:41 pm
by kamber
I'm trying to get octane working on my mac pro (with nvidia quadro k4200 and latest cuda drivers and toolkit) and can't get octane to see the graphics card. The standalone version of octane comes up with a message saying 'no CUDA GPUs' and when I look in the preferences it doesn't show the card. Nothing at all renders. Have had it working on a PC with the same graphics card and the card is working in other programs on the mac so not sure what it is I'm doing wrong. Would massively appreciate any thoughts anyone has on this! Thank you!

Re: Octane not recognising graphics card

Posted: Mon Mar 07, 2016 10:52 pm
by SimonPercy
Can you post some extra details?

Are you running Mac OSX or Windows on the Mac?

Re: Octane not recognising graphics card

Posted: Tue Mar 08, 2016 9:28 am
by kamber
Sure, I'm running OSX 10.9.5

Re: Octane not recognising graphics card

Posted: Tue Mar 08, 2016 11:10 am
by bepeg4d
Hi kamber,
I have tried to find some info about K4200 on Mac but seems not easy to use this card with Os X for CUDA apps :roll:
Anyway it seems very good to handle high res displays.
I not also found good info about the power pin, does it use a 6 pin connector or not?
Since it is a single slot card, my suggestion, if possible, os to leave the Quadro in the first bottom slot for display only and add a second GTX card n the second slot with a gap for Octane only.
If the Quadro has no pin connectors, you can easily add a 970 doubling the calculation power, otherwise, you need an external PSU to feed the new card, or a way to obtain the power from the extra DVD bay like suggested here ;)
ciao beppe

Re: Octane not recognising graphics card

Posted: Tue Mar 08, 2016 4:39 pm
by kamber
It uses a 6 pin connector, and everything else on the mac works with it, including openGL display inside cinema 4d. It worked fine on the PC running everything fine + octane. That's why we were confused as to why it stopped working only for octane when moving it to our mac.

Re: Octane not recognising graphics card

Posted: Wed Mar 09, 2016 2:33 am
by mib2berlin
Hi, I am not OSX user but found Quadro FX for Mac or GeForce for Mac must be installed prior to CUDA 7.5.25 installation.

http://www.nvidia.com/object/macosx-cud ... river.html

Cheers, mib
@bepeg4d, really hard to find. :)

Re: Octane not recognising graphics card

Posted: Wed Mar 09, 2016 10:30 am
by bepeg4d
Hi,
since is written everywhere that Octane needs CUDA, I was assuming that kamber already installed the CUDA drivers but the card was not usable under Mac anyway. Mac is a bit strange, we don't have any issue with installing PC GTX from a long time now because the GTX production for mac is over. But with Quadro cards the things are a bit different :roll:

Edit: after searching a bit better, I have found a Korean mac user that was able to successfully install a K4200 on Mac Pro 5.1 on Os X 10.10.1, so it's possible:
http://programmingopencvopengletc.blogs ... k4200.html
ciao beppe