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GPU results? 1080?

Posted: Tue Nov 06, 2018 5:50 pm
by rich0550a1
just wondering what kind of results people are getting with GPU on. Diverso so forth. Also are there special drivers from Nvidia that would help like the CUDA dev kit?

Re: GPU results? 1080?

Posted: Tue Nov 06, 2018 7:48 pm
by Bullit
My "feeling", well i should call it more than a feeling is that indeed the GPU is the better tool for Dyverso . We did not get anything extra, we use current drivers.

Re: GPU results? 1080?

Posted: Tue Nov 06, 2018 8:14 pm
by ChristianZ
Sure, GPU is a great boost for Dyverso (and only Dyverso) in RF. You have to stay within the VRAM, but that is fine for several millions of particles, which should be fine for most small scale fluids.
But I am not a hardware expert and I am simply using the recommended drivers in W10 for my Asus GTX1080Ti.

Re: GPU results? 1080?

Posted: Wed Nov 07, 2018 9:35 pm
by Oldcode
Christian,

When you say "boost", does that mean that Dyverso can use the CPU and GPU at the same time? My GPU is kind of old, and was not the most powerful even when it was new so I'm almost afraid to even try it. :?

Re: GPU results? 1080?

Posted: Wed Nov 07, 2018 9:57 pm
by ChristianZ
Hi Oldcode

you can use Dyverso solvers with or without the GPU-acceleration on. Best is a graphic-card with many computation cores and a decent amount of video RAM. The Dyverso system currently uses only one GPU at the time.
I see here very nice speed increases with a good GPU and Dyverso in the standalone and in the plugin version of RF.
http://support.nextlimit.com/display/rf2016docs/GPU

Re: GPU results? 1080?

Posted: Sat Nov 17, 2018 7:53 pm
by Bullit
Oldcode wrote:Christian,

When you say "boost", does that mean that Dyverso can use the CPU and GPU at the same time? My GPU is kind of old, and was not the most powerful even when it was new so I'm almost afraid to even try it. :?


If your GPU is old - how old is old? - then you might get better results with CPU, you just have to test both ways and find what is the speedier one.