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You won't be able to vote or comment. You should have been prompted to create a ppcoin. I thus urge those who want to mine any virtual currency, to go elsewhere, or at least ask to see the programming, and have it primecoin by a security professional. Windows for the resource software have provided here. It will take pool a for for your rate to level off.
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So I'm not sure if either of them have AVX support, sorry. If you get bored with the default effects …. Each hash has a chance of yielding bitcoins. This is just fine because a miner looking for, for example, difficulty 1 or better shares is implicitly looking for difficulty 20 million or better shares that would solve a block--there is no way to look for shares to get pool credit without looking for shares to solve blocks. This software offers a solution to users who want to
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It's a G74 Asus gaming with a for. Primecoin windows out your balance here http: You can use this one solo or in a pool as well, and many had less software with installation. If nothing pops up check your antivirus software and try another coin see if it works then. The software easily maintains the portability pool higher primecoin lower
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Being a newbie to this type of stuff, where could I find some great information. I'm interested in getting a rig built. For Primecoin, just get the most powerful CPUs you can and as many as you can. For Litecoin, this is a pretty decent guide: Not sure but if you want one that for sure does, mine on http: I was looking at my ProtoShares mining notes instead. So I'm not sure if either of them have AVX support, sorry.
Can you help me with this? On my notebook it has only 1 acceptance in hours in sum. Can you help me with that? I'd be careful mining on a laptop too since they tend to get hot when you're beating on the CPU like that.
Keep a close eye on your temps. This is after 50min nonstop. It's better, than it was when I've written this message, but is it good enough? It looks like you've got everything running correctly so I'm not sure what the problem would be.
I don't really know if what you're seeing is low or not since I've never mined on that CPU before. I'd let it run for a few hours to see if it picks up since I think that miner automatically adjusts some settings as it mines so you end up getting better results over time.
For nearly hours it takes finally 60 shares, so by 6 hours it mined 0. And how much should be sieve size? By increasing it from 1m to 1. Of all the mining I've tried, this one seems to be the better - It is the recommended client for ypool.
Been mining since yesterday, I love it. The progress is much faster than doing solo. I might reach my first coin tomorrow. One of the best parts of primecoin over bitcoin and other Alt coins is that it can still be mined with CPUs. Don't forget the importance of solo mining in securing the network.
Solo mining could take a day or a month to get any coins, depending on your CPU and your luck. Give it a try for a week and see how you do! I installed the same file you did from dropbox, but I have a quad core i5 s..
Not sure what I'm doing here but at least it works.. I thought primecoin was based on a fork of the bitcoin client. I made the assumption it used the built in 'GetWork' function or its modern incarnations to pool mine. That sequence is for Cunningham Chains of the First Kind.
Once the sieve is run most numbers will be eliminated, simply by the nature of a sieve. One can then look at R-1, 2R-1, 4R-1, If one is interested in chains of length 8 or longer and finds that R-1 and R-1 are both composite as proven by the sieve then there is no reason to test 2R-1, 4R-1, If, however, you were looking for chains of length 7 or 6 then you would check the chain.
This could mean a single primality check on the first number that shows it to be comosite, or you could have to do several if you have a gap of 7 and are looking for chains of 6 you could check the first but even if it fails you have to check the 2nd because you still have a gap of 6 remaining. If you check the 2nd first, though, then you can eliminate the entire gap with a single Fermat Primality Test, which is the bulk of the computation in the proof of work.
That is where the exploit is, not in whether or not to test the 7th and 8th numbers once a share is found. The server has to check those numbers anyway, so it is wholly inefficient for the miner to waste their time on it. If a miner is looking for network difficulty say, 8 shares then they will not waste their time on doing any primality tests on numbers that fall in gaps of 7 or fewer number that pass the sieve.
If, however, they are self-interested as you can expect a miner to be then they will check everything in a gap of share difficulty say, 6 , even if they have already shown that a network difficulty share will not result. This obviously benefits the miners--they get more chances at finding a share per sieve--and obviously harms the pool--the miner is wasting time not trying to find a network difficulty block. Those two circumstances are sufficient to demonstrate that the attack exists.
The only remaining question to answer is how bad is the exploit? For that, I would turn to the oft-cited primes per second number that has grown popular in recent time. That number reports the number of origins that are found each second that have at least a difficulty of 1 in either Cunningham chain type or a bi-twin chain, but that is implied by the existence of a Cunningham chain, given that Primecoin has given a definition for a bi-twin chain of odd length.
Recently, when difficulty tripped over to 8 the primes per second dropped pretty universally. That is exactly because of the exploit I am describing. Miners were suddenly not checking chains of length 7 anymore, since such chains were not going to solve a block. As such, they checked fewer chains per sieve and found fewer primes per second. If you offer work shares at a difficulty of 6 and the network difficulty is 8 then I would expect to be able to get about 2. This exploit is very real and very dangerous to pool owners.
If you don't believe me, be warned that I am likely to take your source code, find the 1 or 2 lines to change, and demonstrate the power of this kind of attack more for academic reasons than for personal gain. I would also release my changes, to at least keep the playing field somewhat level. At the end of the day, I am not convinced that you or anyone else has solved the problem of creating a pool that is not weak to this attack.
Perhaps you can offer a small reward for difficulty 6 blocks, a larger reward for difficulty 7 blocks, and a substantially larger reward for difficulty 8 blocks. I suspect that tuning those rewards and perhaps continuing the sequence could make the attack I described useless, but it is at the cost of higher variance. It is also probable that if you tune that approach incorrectly then it will actually make the opposite attack viable i.
Mining pools for Primecoin are an interesting and challenging problem. I applaud you for stepping out as the first XPM pool, but I think the road ahead is rocky. Sorry for taking so long to respond, but I am permanently forced to offer support and improve the performance of our servers as the demand rises. Yes, you are correct, I missed the point that the difficulty has a major effect on sieve generation time. Not sure why I forgot to think of that.
But I can see that it is a severe vulnerability. I understand the attack very clear by now. Rewarding users differently for better shares is however not a real solution in my opinion, it's just a workaround. I also don't like my earlier suggested solution of having every miner search for lower difficulty chains. It works with a difficulty difference of 2, maybe 3, but at some point the ratio of useless shares would be too large and the wasted performance too much.
Today I spent some time thinking about how to tackle this problem and I came up with an idea that might work although it has some disadvantages:. I will start by explaining that this approach forces all miners to use the same implementation of sieving. It allows them to tweak and increase performance of the sieve, but not using a completely different algorithm.
My idea is that for each share submitted to the server, we also send the sieve size, the fixedMultiplier and the chosen sieve candidate used for finding this chain. If not, the miner cheats on us and should be punished in whatever way makes sense. If yes, everything is alright.
Besides forcing all miners to use the same sieving algorithm, it comes with a high demand on server CPU load. What do you think? Is there anything I am overlooking again? I am planning to implement this soon and see how it works. I think this is about as good of a solution as exists, but you are correct in that it places a very high load on the servers. Note also that the sieve can be aborted early e. As long as you are only checking a small percentage of shares submitted, though, you should be able to minimize server load.
One thing you should also do is require miners to develop trust before being allowed to withdraw. A miner found to be cheating should lose all of their accumulated proceeds. I think that this could still be used to allow some optimization by tuning the sieve size, but it's a much smaller advantage than the original vulnerability. This is incredibly sketchy. Redditor for one hour, no other contributions on github.
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