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Okay, so stake blocks should be generated every 10 minutes across the entire network. So, given a hypothetical userbase of 10k users all with mature coins, all competing for stake blocks, how is it decided who is allowed to mint a stake block in each 10 minute window?
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So you barge in on the thread running down PPCoin when in fact there is not a problem?  It was a misunderstanding, like the difficulty retarget. |
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Tacotime should I start using and promoting PPcoin? Is it a good coin?
Well, I'm learning new things about it every day apparently. I still think 0.8% per annum is too small an incentive for stake miners, but yes, I bought some because I predicted this meteoric rise in value would follow LTC when it started going up because it was an interesting different approach to cryptocurrency. Sunny King, while you're here, please explain to me the rate of stake block generation and what the target is (what the target rate of number of stake blocks is per day). I'm having trouble finding it in your PDF. |
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This is a misunderstanding. The stake reward does not have its separate output. It's added to the original amount.
Ah, I see. This was one of my problems with the chain. So you just modify the amount at the corresponding address to add the new value in? It was confusing because the wallet reports "+0.00002382012" and I assumed that it was an actual transaction. If you generate stake coins from a sum of multiple input addresses, are the stake coins generated added amongst all of them? |
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That it's not a problem, so far.
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You should just be able to select it from devices ("Cypress PRO")
Hey taco, can you tell us anything about the discrepancy between the GUIMiner kHash and the pool displayed kHash? I tried this on different pools and it's always lower. And yes, also with reaper. Any explanation? I would say it's variance, I'm using guiminer on 4 rigs and the pools are reporting the same thing as the rigs. |
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Better spend it before it generates worthless unspendable stake coins.  I have a big cache of it right now, still waiting to see how high it goes before I dump it. Coins generated from stake are unspendable? Transaction fees are 0.01 per kb, but in many cases (small sums of PPC) the stake generated per block is many magnitudes less than this quantity. These micro quantities of PPC pile up over time, bloating your input transactions when you try to spend them and resulting in more fees to spend the inputs than the inputs are collectively worth. The 0.8% per year yielded by stake only benefits people holding huge amounts of PPC, and even then it only provides a mild incentive to generate stake blocks. |
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Better spend it before it generates worthless unspendable stake coins. I have a big cache of it right now, still waiting to see how high it goes before I dump it. |
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It's not a matter of wrong o right, it's a matter of what methods are used to be compatible.
Yeah. It's not a huge deal, I'm happy to see a nice CUDA miner. Good job OP! I will try to add it to GUIminer-scrypt when I get a chance |
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Seriously quoting a quote who isn't even publishing his source "Somebody did a math paper on this recently". Who did this, what is his/her background and where can we find this paper?
And I'm not anti-LTC, I'm actually quite happily mining LTC with all the GPUs I nearly sold. As a miner I don't care why a coin is valuable, I mine and sell the most profitable. But as a coin user using it for actual purchases and some investments I want to know why a coin is better for me and faster confirmation times without actual, real-world benefits won't convince me...
From the reddit thread: https://bitcoil.co.il/Doublespend.pdf |
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interconnect bandwidth doesn't matter, only internal bandwidth
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Fails to compile on Linux
Maybe because it says on the OP and in the title that this is for Windows? If coded correctly for compatibility, C++ programs are usually cross compatible among unix and windows. Anyway, compiling on unix is proving problematic, I'm giving up for now. |
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Fails to compile on Linux cuda-miner.cpp: In function ‘int main(int, char**)’:
cuda-miner.cpp:1029:31: error: ‘_strdup’ was not declared in this scope
Non-standard C++ functions. I'll try to rewrite it a bit for unix. |
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"On my 7950 I can get 679khash overclocked" But how!?  Core 1100 MHz, mem 1850 MHz |
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Did you even read this? In addition to what everyone here is mentioning, I do have one more pro and one more con to name regarding changing the block frequency.
Pro: confirmation times are, in fact, faster. Nicolai's comment makes it sound as though faster blocks would be perfectly counterbalanced by less hashpower per block, leading to no change in average amount of security per minute. But that's not accurate.
Somebody did a math paper on this recently, and demonstrated that even with less hashpower per block, each block remains an exponential step forward in security. Thus, say 10x 2.5 minute blocks (25 minutes total) provide more security than 3 or even 4 10 minute blocks (30-40 minutes total).
That gain isn't huge to shave 25% off your time to desired security level while quadrupling orphan rates, but there is another con yet to be discussed as well.
Con: shorter confirmation times mean less effort for Finney Attacks. It's easier for an attacker to pre-mine a block with such an artificially low difficulty and then time a transaction with you immediately afterwards without publishing their block so that if you trust their 0-conf, they then publish their block spending the balance elsewhere. Again, redditors missing out on cash are the most upset. |
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Itt massive butthurt from people who didn't buy at 6 cents.
Litecoin increase in value has been 70 fold while bitcoin is 14 fold over the past six months. The market speaks for itself.
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Why the 8 GB of ram? I thought LTC mining used the onboard GPU ram...
You need the equivalent amount of RAM used on the cards on the system -- it's an opencl bug |
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Taco, do you have any guestimates on what's the ROI for a rig like this, or is that a question to another discussion thread?  It took me about 3-4 months to pay off mine 6 months ago, I would suspect with the rising difficulty it will be similar. |
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You should just be able to select it from devices ("Cypress PRO")
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