[XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency - page 176.

Boing7898

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Activity: 686

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Quote from: Buffer Overflow on July 08, 2013, 11:06:32 AM

Quote from: Boing7898 on July 08, 2013, 11:00:09 AM

Quote from: Praxis on July 08, 2013, 10:14:59 AM

Quote from: ReCat on July 08, 2013, 09:57:29 AM

GPU mining is absolutely pointless. A public GPU miner will only drive up difficulty, and we'll be right back at ground zero again. Pointless.

Anyways, I have now mined 140 XPM! (ON a single computer) Seems I'm quite lucky.

There are two reasons why I ask ... one is "selfish" : I have 3 strong GPUs while only 1 mediocre quad CPU. ... the other is, I think it's better to have GPU mining in place IMO is more resistant to botnet-mining. Or am I mistaken to believe this?

Mistaken, imo.
Botnets can use GPU to mine as much as they can use CPU to mine.

Not as easily. It is very much harder. Plus most users don't have high-end GPUs.

Actually, it isn't. Most "silent miners" sold on forums have support for both CPU and GPU.
Not that hard, I coded myself a silent miner that would mine with GPU and CPU using CGMiner and cudaMiner in autoit.

Buffer Overflow

legendary

Activity: 1652

Merit: 1016

Quote from: Boing7898 on July 08, 2013, 11:00:09 AM

Quote from: Praxis on July 08, 2013, 10:14:59 AM

Quote from: ReCat on July 08, 2013, 09:57:29 AM

GPU mining is absolutely pointless. A public GPU miner will only drive up difficulty, and we'll be right back at ground zero again. Pointless.

Anyways, I have now mined 140 XPM! (ON a single computer) Seems I'm quite lucky.

There are two reasons why I ask ... one is "selfish" : I have 3 strong GPUs while only 1 mediocre quad CPU. ... the other is, I think it's better to have GPU mining in place IMO is more resistant to botnet-mining. Or am I mistaken to believe this?

Mistaken, imo.
Botnets can use GPU to mine as much as they can use CPU to mine.

Not as easily. It is very much harder. Plus most users don't have high-end GPUs.

nearmiss

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Activity: 448

Merit: 250

Quote from: Zalfrin on July 08, 2013, 11:00:48 AM

Quote from: irritant on July 08, 2013, 10:02:29 AM

I was wondering if the prime95 client can be used for pool mining

This is not doing Mersenne prime discovery like prime95, so no.

I'm not convinced there's really any scientific value being created here, but maybe a scientist will step forward with something... The article that was posted about it talked about maybe prime factorization optimizations could be discovered, but that claim seems dubious.

May turn out its not scientifically useful I suppose....but still a step in the right direction.

Buffer Overflow

legendary

Activity: 1652

Merit: 1016

Quote from: ReCat on July 08, 2013, 10:37:43 AM

Quote from: mustyoshi on July 08, 2013, 10:32:45 AM

Has anybody made a GPU miner yet?

a GPU miner will drive up the difficulty and lower the block reward. We'll be dealing with the same exact shit again. What's the point?

To stop botnets, or they will eventually control the coin.

Zalfrin

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Activity: 401

Merit: 250

Quote from: irritant on July 08, 2013, 10:02:29 AM

I was wondering if the prime95 client can be used for pool mining

This is not doing Mersenne prime discovery like prime95, so no.

I'm not convinced there's really any scientific value being created here, but maybe a scientist will step forward with something... The article that was posted about it talked about maybe prime factorization optimizations could be discovered, but that claim seems dubious.

Boing7898

sr. member

Activity: 686

Merit: 259

Quote from: Praxis on July 08, 2013, 10:14:59 AM

Quote from: ReCat on July 08, 2013, 09:57:29 AM

GPU mining is absolutely pointless. A public GPU miner will only drive up difficulty, and we'll be right back at ground zero again. Pointless.

Anyways, I have now mined 140 XPM! (ON a single computer) Seems I'm quite lucky.

There are two reasons why I ask ... one is "selfish" : I have 3 strong GPUs while only 1 mediocre quad CPU. ... the other is, I think it's better to have GPU mining in place IMO is more resistant to botnet-mining. Or am I mistaken to believe this?

Mistaken, imo.
Botnets can use GPU to mine as much as they can use CPU to mine.

craslovell

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Activity: 1470

Merit: 1021

Quote from: craslovell on July 08, 2013, 10:50:34 AM

Quote from: mustyoshi on July 08, 2013, 10:47:15 AM

Quote from: craslovell on July 08, 2013, 10:45:00 AM

I have 48 cores in one machine mining but 0 primespersec after 20 mins. My other machines are all working fine

Each thread gets it's own sieve, you're probably running into cache issues.

Then I have no clue what to try next lol, maybe less cores

Eh not helping either

craslovell

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Activity: 1470

Merit: 1021

Quote from: mustyoshi on July 08, 2013, 10:47:15 AM

Quote from: craslovell on July 08, 2013, 10:45:00 AM

I have 48 cores in one machine mining but 0 primespersec after 20 mins. My other machines are all working fine

Each thread gets it's own sieve, you're probably running into cache issues.

Then I have no clue what to try next lol, maybe less cores

mustyoshi

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Activity: 287

Merit: 250

Quote from: craslovell on July 08, 2013, 10:45:00 AM

I have 48 cores in one machine mining but 0 primespersec after 20 mins. My other machines are all working fine

Each thread gets it's own sieve, you're probably running into cache issues.

craslovell

legendary

Activity: 1470

Merit: 1021

I have 48 cores in one machine mining but 0 primespersec after 20 mins. My other machines are all working fine

mustyoshi

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Activity: 287

Merit: 250

Quote from: tacotime on July 08, 2013, 10:41:25 AM

Quote from: ReCat on July 08, 2013, 10:37:43 AM

Quote from: mustyoshi on July 08, 2013, 10:32:45 AM

Has anybody made a GPU miner yet?

a GPU miner will drive up the difficulty and lower the block reward. We'll be dealing with the same exact shit again. What's the point?

That people aren't mining in secret with them and getting 100 blocks for every 1 block you get with your CPU?

Quote

I thought the block reward was constant.

No, block reward decreases with higher difficulty.

oh lawdy then my C++ skills are worse than I thought.

What file do I even find the block reward in Huh

tacotime

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Activity: 1484

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Quote from: ReCat on July 08, 2013, 10:37:43 AM

Quote from: mustyoshi on July 08, 2013, 10:32:45 AM

Has anybody made a GPU miner yet?

a GPU miner will drive up the difficulty and lower the block reward. We'll be dealing with the same exact shit again. What's the point?

That people aren't mining in secret with them and getting 100 blocks for every 1 block you get with your CPU?

Quote

I thought the block reward was constant.

No, block reward decreases with higher difficulty.

mustyoshi

sr. member

Activity: 287

Merit: 250

Quote from: ReCat on July 08, 2013, 10:37:43 AM

Quote from: mustyoshi on July 08, 2013, 10:32:45 AM

Has anybody made a GPU miner yet?

a GPU miner will drive up the difficulty and lower the block reward. We'll be dealing with the same exact shit again. What's the point?

I thought the block reward was constant.

The point is that we'd be producing primes!

ReCat

sr. member

Activity: 406

Merit: 250

Quote from: mustyoshi on July 08, 2013, 10:32:45 AM

Has anybody made a GPU miner yet?

a GPU miner will drive up the difficulty and lower the block reward. We'll be dealing with the same exact shit again. What's the point?

Praxis

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Activity: 1118

Merit: 1004

My primespersec is 41, I had it open since yesterday, and only 1 block found Undecided

mustyoshi

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Activity: 287

Merit: 250

Has anybody made a GPU miner yet?

TheMightyX

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Activity: 350

Merit: 250

Vires in Numeris

Quote from: lucasjkr on July 08, 2013, 10:29:53 AM

I set this going last night in a virtual machine at home - the host is has a an i7 processor, the VM has 2 cores, and is running Ubuntu 13. At various points, it was reporting between 80 and 150 primes per second. As of 7 AM (5 hours later), it was still mining but had yet to generate any coins.

At work now, set the wallet running on my desktop here, also an i7, this one running Win8. I'm running it as "setgenerate true 6" in order to leave a couple of cores left for myself. Question is, I also seem to be generate 60-80 primes per second over here as well, with 3 times as many cores dedicated to the job.

In short - home machine is using 2 cores of 8 (4 real cores, 4 hyperthreaded) in a virtual environment and getting 169 primespersec currently
work machine is using 6 of 8 (4 real, 4 hyperthreaded) inside a real operating system (as opposed to virtualized) and is now achieving 116 primesper sec.

How does that work?

If i was home right now, I'd duplicate that instance a couple of times and see if each instance could achieve 169 primes per second if they were each pinned to different cores.

Does this make sense to anyone? Is there an explanation?

Primespersec will fluctuate and shoudnt be trusted.

lucasjkr

hero member

Activity: 644

Merit: 500

incidentally, my home machine has been mining since 2 AM and has yet to generate an coins at all.

lucasjkr

hero member

Activity: 644

Merit: 500

I set this going last night in a virtual machine at home - the host is has a an i7 processor, the VM has 2 cores, and is running Ubuntu 13. At various points, it was reporting between 80 and 150 primes per second. As of 7 AM (5 hours later), it was still mining but had yet to generate any coins.

At work now, set the wallet running on my desktop here, also an i7, this one running Win8. I'm running it as "setgenerate true 6" in order to leave a couple of cores left for myself. Question is, I also seem to be generate 60-80 primes per second over here as well, with 3 times as many cores dedicated to the job.

In short - home machine is using 2 cores of 8 (4 real cores, 4 hyperthreaded) in a virtual environment and getting 169 primespersec currently
work machine is using 6 of 8 (4 real, 4 hyperthreaded) inside a real operating system (as opposed to virtualized) and is now achieving 116 primesper sec.

How does that work?

If i was home right now, I'd duplicate that instance a couple of times and see if each instance could achieve 169 primes per second if they were each pinned to different cores.

Does this make sense to anyone? Is there an explanation?

eule

hero member

Activity: 756

Merit: 501

Quote from: tadakaluri on July 08, 2013, 10:19:25 AM

Surprisingly the website: http://primecoin.org gives malware warning

I just get connection interrupted error.

Topic: [XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency - page 176. (Read 688812 times)