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Re: 50% GPU Utilization

PostPosted: Tue Apr 07, 2020 3:47 am
by PantherX
Under the Sensors tab, look at GPU Load. Mine hovers between 98% and 100% on average while folding.

Re: 50% GPU Utilization

PostPosted: Tue Apr 07, 2020 7:00 am
by bruce
r0k0 wrote:i have gpu-z but in the sensor tab, what do i look for ?


I generally look at two sensors. GPULoad and PerfCapReason

You do have to consider the size of the protein being folded, however. For large proteins, performance is limited by the number of shaders. For small proteins, GPULoad will be limited by the Memory Controller Load and possibly by the Bus Interface Load. You can't make use of a large number of shaders if you can't get the data fast enough to keep them all busy.

Re: 50% GPU Utilization

PostPosted: Tue Apr 07, 2020 10:16 am
by r0k0
ahhh haha thanks guys

Re: 50% GPU Utilization

PostPosted: Wed Apr 08, 2020 6:20 pm
by Rel25917
GPU load is the one to look at.

Re: 50% GPU Utilization

PostPosted: Wed Jul 08, 2020 9:43 am
by saustin
bruce wrote:
r0k0 wrote:i have gpu-z but in the sensor tab, what do i look for ?


I generally look at two sensors. GPULoad and PerfCapReason

You do have to consider the size of the protein being folded, however. For large proteins, performance is limited by the number of shaders. For small proteins, GPULoad will be limited by the Memory Controller Load and possibly by the Bus Interface Load. You can't make use of a large number of shaders if you can't get the data fast enough to keep them all busy.


I am new at this, but I was wondering how do you tell the size of the protein? I have been trying to figure out the very erratic PPD numbers I get from my 4 identical 2080 Supers. I know this plays some part in it, but I think there is more going on than just that. I have two Identical machines with 2 2080's each all 4 the exact same card as well. My PPD can go from 2.9M est to 999k EST on any given WU, all while GPU Z tells me that 1 card in each machine never sees above a 68-69% workload on the GPU. The other is at 90-98%. It's driving me batty trying to figure it out. I have tried different drivers, I even swapped motherboards (brands as well) just to see. The lower Estimated PPD WU always coincided with the low utilization card as well.

Any ideas?

Re: 50% GPU Utilization

PostPosted: Wed Jul 08, 2020 2:11 pm
by Joe_H
saustin wrote:I am new at this, but I was wondering how do you tell the size of the protein?


The size of the simulation is the number of atoms is listed in the Project Summary - https://apps.foldingathome.org/psummary - for every project. Currently that ranges from under 10,000 to over 400,000. That is not directly the "size of the protein as it includes the solvent around the protein, but is useful in a relative manner.