Hardware discussion spun off M52 prediction thread
 

[QUOTE=ZFR;577957]No, no. Factoring is all I do. I do a couple of PRPs, but most my work nowdays is just GPU factoring for GPU72.[/QUOTE]
It's possible to perform trial factoring on mfaktc and run PRP tests on Prime95 at the same time without much slowdowns.

[QUOTE=tuckerkao;577961]It's possible to perform trial factoring on mfaktc and run PRP tests on Prime95 at the same time without much slowdowns.[/QUOTE]
No mfaktc uses too much cpu resources, but you can run gpuowl (PRP/LL or P-1)and prime95 at the same time with maybe 1-5% slowdown on (at least on a Vega64 or Radeon VII).

[QUOTE=moebius;577962]No [B][U]mfaktc uses too much cpu[/U][/B] resources, but you can run gpuowl (PRP/LL or P-1)and prime95 at the same time with maybe 1-5% slowdown on (at least on a Vega64 or Radeon VII).[/QUOTE]

I disagree. It is not true, at least not always. When I run mfaktc, it uses only up to 1% of the CPU, which is basically nothing, considering 12 cores, so Prime95 will barely notice something.

If someone has 4 cores, then there might be bigger issues, but in that case, the speed is already pretty low, so the slowdown will again be barely noticeable, IMO.

[QUOTE=Viliam Furik;577964]If someone has 4 cores, then there might be bigger issues, but in that case, the speed is already pretty low, so the slowdown will again be barely noticeable, IMO.[/QUOTE] I have 8 cores, maybe that's the cause of a little bit higher slowdown.

[QUOTE=Viliam Furik;577964]
If someone has 4 cores, then there might be bigger issues, but in that case, the speed is already pretty low, so the slowdown will again be barely noticeable, IMO.[/QUOTE]

That's me. And yes, it's pretty much negligible given how long it takes to do a PRP.

EDIT: Just did a quick test. ms/iter are about 1% lower without mfaktc.

[QUOTE=Viliam Furik;577964]I disagree. It is not true, at least not always. When I run mfaktc, it uses only up to 1% of the CPU, which is basically nothing, considering 12 cores, so Prime95 will barely notice something.[/QUOTE]
I guess you have AMD Ryzen™ 9 5900X 3.7GHz [4.8GHz Turbo] 12 Cores/ 24 Threads 70MB Total Cache 105W Processor with GeForce RTX™ 3090 24GB GDDR6X, correct me if I guess not expensive enough.

Threadripper CPUs have at least 24 cores, so a decent video card will guarantee the ultimate dual performance, thus it's like having 2 assembly lines on each PC.

[QUOTE=ZFR;577967]That's me. And yes, it's pretty much negligible given how long it takes to do a PRP.

EDIT: Just did a quick test. ms/iter are about 1% lower without mfaktc.[/QUOTE]
It's around 14,300 ms/iteration for M168,347,321 on my current PC, took me a full month to finish this PRP, different speed when change the exponent size, I'd like to know the stats of ViliamF's CPU too.

[QUOTE=moebius;577966]I have 8 cores, maybe that's the cause of a little bit higher slowdown.[/QUOTE]
What graphic card do you have? If your GPU is much faster than your CPU, then this can be an issue.

[COLOR=DarkSlateGray]EDIT: Never mind... I can't read.
[/COLOR]

[QUOTE=tuckerkao;577968]I guess you have AMD Ryzen™ 9 5900X 3.7GHz [4.8GHz Turbo] 12 Cores/ 24 Threads 70MB Total Cache 105W Processor with GeForce RTX™ 3090 24GB GDDR6X, correct me if I guess not expensive enough.[/QUOTE]

Nope. I think I already made my components known in some previous thread, but if not, I have a Ryzen 9 3900X, RTX 2080Ti, and a Radeon VII. The GPUs are now however mining Ethereum (because unfortunately, money is always needed).

[QUOTE=Viliam Furik;578014]The GPUs are now however mining Ethereum (because unfortunately, money is always needed).[/QUOTE]
I thought ASICs had essentially made GPUs uneconomic for mining, or am I mistaken?

I have a friend who has loads of solar panels and a wind turbine. I have suggested to him the possibility of mining, but I thought ASICs were so much better than GPUs, that GPUs were a waste of time.

[QUOTE=drkirkby;578018]I thought ASICs had essentially made GPUs uneconomic for mining, or am I mistaken?

I have a friend who has loads of solar panels and a wind turbine. I have suggested to him the possibility of mining, but I thought ASICs were so much better than GPUs, that GPUs were a waste of time.[/QUOTE]

From the little I know about the world of cryptocurrencies, ASICs are superior for Bitcoin, not for Ethereum. I am also mining through NiceHash, which AFAIK mines Ethereum and pays me in Bitcoin.

[QUOTE=Viliam Furik;578021]From the little I know about the world of cryptocurrencies, ASICs are superior for Bitcoin, not for Ethereum. I am also mining through NiceHash, which AFAIK mines Ethereum and pays me in Bitcoin.[/QUOTE]
Can you make enough money to actually pay for the graphics card? Or is it a case of you bought a graphics card for playing games, and it earns you a little money. Clearly if it earns you $25/month, it would take an awful long time to recover the cost of the graphics card.

Dave