Hi, Looking for a way to have Rhino 7 raytrace render with installed Nvidia A4000 GPU/s. Under Properties, Rhino Options, Cycles, Device Settings the GPUs are not recognized under the Cuda tab. The only option given is to use the CPU. Hardware: Lenovo p620 with 2 Nvidia RTX A4000s. Software: the…

Hmm, I will have to put in the A4000 again to test, but I am sure it was recognized when I last tested it. Mind you, this is on Windows 10 - my machine does not support Windows 11. At least the A5000 and A6000 currently in my machine work like a dream. Are you using the Studio Driver or the Game R…

So I used a PCI riser to have also the A4000 installed. On my Windows 10 box Rhino 7 detects all three cards no problem: ▶ _SystemInfo [image] Unfortunately I can’t test Windows 11 as mentioned, but I’ll ask around if other devs in our team can reproduce the problem.

I use RTX A4000 or A5000 for my Zbook 17 G6 as eGPU without issue. Rhino 7 works well with any of them. My other system (HP Z820) was having issues for month’s but apparently, I managed to find out that some Windows 10 updates causing it. It could probably one or some Windows 10 updates messing up…

@user2659 Could you please post the unabridged results from the Rhino command _SystemInfo?

Nice 3 GPUs, Nathan :heart_eyes: Hoping to get another A5000 so I could set NVLINK between the A5000s in the near future for the Z820, and let the A4000 serves my Zbook 17 :grinning_face_with_smiling_eyes:

Really appreciate the info, Nathan. I would simply remove the NVLINK bridge when using Rhino with the Z820, when the A5000 arrived. It could possibly be next year. Whoa! That’s surely like me when doing some hardware research stuffs :grinning_face_with_smiling_eyes: I see that the A4000 is being su…

Check your NVidia Control Panel settings under the “Manage GPU Utilization”… and make sure it’s set to “User for Graphics and compute needs” (see pic). [image] -Jeff

Ooops, sorry… my last message was supposed to be directed at @user2659 -J

Hello Nathan, So if then even the latest “third Generation NVLink” is not supported in Cycles Rendering then what hardware / configuration would you suggest would be best to connect / install say two Nvidia RTX A6000 GPUs to obtain the best GPU performance from these cards for Cycles Renderiing? …

Rhino 7 not recognizing Nvidia RTX A4000 GPUs as render device

Rhino Rhino for Windows

nathanletwory (Nathan 'jesterKing' Letwory) December 25, 2021, 11:52am 8

FWIW NVLink isn’t supported in Cycles rendering. It will potentially lead to crashes.

edit: this is my less-than-ideal 3 GPU setup

Installing several GPUs in a machine / amount & type of system RAM

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Rhino 7 not recognizing Nvidia RTX A4000 GPUs as render device

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