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Old 2021-08-11, 09:35   #1
Jonnymac
 
Aug 2021

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Default GPU software query

Hi,

I'm currently running gpuowl-win and wondering would using CUDALucas2.06-CUDA10.1-Windows-x64 produce a much faster result

I am using a Gigabyte RTX 3070 Gaming OC 8Gb GPU

Thanks
John
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Old 2021-08-11, 12:32   #2
Uncwilly
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GPUowl is the state of the art. It does PRP testing along with the production of the files need to do a cert run. This saves us nearly the cost of a whole recheck. So it is what we want to use when we can.

Welcome to the forum.
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Old 2021-08-11, 13:12   #3
Jonnymac
 
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Quote:
Originally Posted by Uncwilly View Post
GPUowl is the state of the art. It does PRP testing along with the production of the files need to do a cert run. This saves us nearly the cost of a whole recheck. So it is what we want to use when we can.

Welcome to the forum.
Thanks Uncwilly for the prompt update, I'll stick with GPUowl, happy hunting.
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Old 2021-08-11, 13:22   #4
kriesel
 
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Welcome. Gpuowl is more than triple the productivity of CUDALucas on GPUs that can run both. Faster than CUDALucas by ~1.75x in performing a primality test, plus avoidance of ~99.5% of double-check effort due to the PRP proof file generation. Far more reliable too because it has the Gerbicz Error Check for PRP, while CUDALucas does LL only and does not have the Jacobi symbol check.

TF however would be a more productive application of an RTX20xx or 30xx. (See Mfaktc, which benefits from some tuning.)
There's lots of reference info, including how to get started with Mfaktc.
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Old 2021-08-11, 14:43   #5
Jonnymac
 
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Thanks kriesel for the detailed explanation, I'll look into TF
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Old 2021-08-11, 19:28   #6
Uncwilly
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You may find that you like doing TF the most or you may find that you like doing PRP. Do which ever brings you the most joy.
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Old 2021-08-12, 06:23   #7
MattcAnderson
 
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Again, welcome to the form JohnnyMac.
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Old 2021-08-14, 08:31   #8
Jonnymac
 
Aug 2021

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Thanks Matthew,

QQ I am running Gpuowl with maxAlloc 7G however my task manager shows GPU utilization < 3%!!!
Is there a flag I need to run to make Gpuowl use the GPU instead of the CPU?

Also what does -1,79,2,3,1 mean at the end of the PRP assignment?
Assuming it's something to do with cores or cpu's but unsure how it is relevant to GPU



Rig:
Asus PRIME X570-P
AMD Ryzen 5 5600X CPU
Gigabyte RTX 3070 Gaming OC 8GB GPU
WD_Black SN850 NVMe SSD 500GB
16Gb Corsair Vengeance RAM 3200Mhz
Passmark rating 7600

Last fiddled with by Jonnymac on 2021-08-14 at 09:07
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Old 2021-08-14, 11:12   #9
Jonnymac
 
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Quote:
Originally Posted by kriesel View Post
Welcome. Gpuowl is more than triple the productivity of CUDALucas on GPUs that can run both. Faster than CUDALucas by ~1.75x in performing a primality test, plus avoidance of ~99.5% of double-check effort due to the PRP proof file generation. Far more reliable too because it has the Gerbicz Error Check for PRP, while CUDALucas does LL only and does not have the Jacobi symbol check.

TF however would be a more productive application of an RTX20xx or 30xx. (See Mfaktc, which benefits from some tuning.)
There's lots of reference info, including how to get started with Mfaktc.
I've kicked off a copy of mfaktc-0.2.1.win.cuda11.2, that seems to be heating up the GPU better than Gpuowl Lol
However GPU utilization is still < 1%
I assume this must be normal unless told otherwise.



Rig:
Asus PRIME X570-P
AMD Ryzen 5 5600X CPU
Gigabyte RTX 3070 Gaming OC 8GB GPU
WD_Black SN850 NVMe SSD 500GB
16Gb Corsair Vengeance RAM 3200Mhz
Passmark rating 7600

Last fiddled with by Jonnymac on 2021-08-14 at 11:14
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Old 2021-08-14, 12:25   #10
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AFAIK, Task Manger doesn't show GPU utilization. I am guessing you're seeing the CPU usage of the program and mistaking it for the GPU utilization. There should be something like an Nvidia control panel which can show you the GPU utilization.
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Old 2021-08-14, 12:33   #11
Jonnymac
 
Aug 2021

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Hi axn, Task Manager's Processes tab does show GPU utilization, however both Gpuowl and mfaktc show 0%
Most odd indeed but hey they appear to be working, I'm getting results from mfaktc



Rig:
Asus PRIME X570-P
AMD Ryzen 5 5600X CPU
Cooler Master MasterLiquid ML120L V2
Gigabyte RTX 3070 Gaming OC 8GB GPU
WD_Black SN850 NVMe SSD 500GB
16Gb Corsair Vengeance LPX RAM 3200MHz
Passmark rating 7600

Last fiddled with by Jonnymac on 2021-08-14 at 13:22
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