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GPU load less than 90%?
Posted: Sat Jan 14, 2023 10:56 am
by Breach
Hey there,
It's been some time since I last visited, so this has been likely discussed before. 4090 here, folding p18448, and I noticed that the GPU utilization hardly reaches 90% (more like 87% average), plus the effective clock in my case is 2970 Mhz vs the set 3000 Mhz. I wonder why that is? I am not CPU bound. Is this a core_22 limitation or am I missing something?
Thanks!
Re: GPU load less than 90%?
Posted: Sat Jan 14, 2023 12:54 pm
by Vester
Re: GPU load less than 90%?
Posted: Sat Jan 14, 2023 4:18 pm
by Joe_H
Besides what is mentioned in that topic about a 4070, the 4090 has 16,000 shaders. Not all projects are large enough to keep them all utilized. You will see a difference between projects with about 100,000 atoms in the simulation as compared to those with several hundred thousand.
Re: GPU load less than 90%?
Posted: Sat Jan 14, 2023 8:15 pm
by Breach
Joe_H wrote: ↑Sat Jan 14, 2023 4:18 pm
Besides what is mentioned in that topic about a 4070, the 4090 has 16,000 shaders. Not all projects are large enough to keep them all utilized. You will see a difference between projects with about 100,000 atoms in the simulation as compared to those with several hundred thousand.
All clear, thanks, seems about right - at 95% utilization with p18601 now.
But are there any cause-specific projects which are larger and more appropriate for me then, so that I can set that as a preference?
Re: GPU load less than 90%?
Posted: Sun Jan 15, 2023 2:14 am
by Mxyzptlk
All clear, thanks, seems about right - at 95% utilization with p18601 now.
But are there any cause-specific projects which are larger and more appropriate for me then, so that I can set that as a preference?
Alzheimers seems to get the most out of these cards.
Re: GPU load less than 90%?
Posted: Tue Jan 17, 2023 8:28 pm
by Breach
Just FYI, with p18601 I am getting about 30 million PPD - insane...
Re: GPU load less than 90%?
Posted: Thu Jan 26, 2023 1:11 am
by FaaR
Breach wrote: ↑Tue Jan 17, 2023 8:28 pm
Just FYI, with p18601 I am getting about 30 million PPD - insane...
Yeah, that is absolutely friggen insane.
More than 8.5x a R7900XTX...
Why is AMD performance so absolutely abysmal in comparison to NV in FaH? It's really depressing.
Re: GPU load less than 90%?
Posted: Thu Jan 26, 2023 1:20 am
by bikeaddict
FaaR wrote: ↑Thu Jan 26, 2023 1:11 am
Breach wrote: ↑Tue Jan 17, 2023 8:28 pm
Just FYI, with p18601 I am getting about 30 million PPD - insane...
Yeah, that is absolutely friggen insane.
More than 8.5x a R7900XTX...
Why is AMD performance so absolutely abysmal in comparison to NV in FaH? It's really depressing.
In late 2020, F&H added support for CUDA on NVIDIA cards. Before that, all GPUs used OpenCL. This gave an increase in PPD of about 50% on the GTX cards I was using then. It's expected that NVIDIA cards will perform better than AMD, but not 8x AFAIK.