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Author Topic: [XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency  (Read 686991 times)
Moebius327
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July 08, 2013, 07:57:29 PM
 #581

yay! After 24 hours of mining, i manage to get 10 blocks worth 200XPM and 4 orphans.

how do you check for orphans?
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July 08, 2013, 08:00:09 PM
 #582

Gentoo ebuild of the daemon here, for the true believers. Modified from bitcoind 0.8.2 ebuild.

https://github.com/teknohog/ebuilds/tree/master/net-p2p/primecoind

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July 08, 2013, 08:03:43 PM
 #583

some lucky guys there Smiley
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July 08, 2013, 08:10:06 PM
 #584

I'll put up one Bitcoin in bounty for a CPU-miner (standalone) that will run on both windows and linux and outperform the built-in miner.

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July 08, 2013, 08:20:47 PM
 #585

Mining on my aging Core 2 Duo at home and checking occasionally it from work over VNC. ~50 PPS, 16 hours, and only 1 block.
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July 08, 2013, 08:29:52 PM
 #586

There certainly seems to be some unknown quantity determine which processors produce better results. My i7 8 core laptop does 40-60pps but my i7 8 core desktop does 150 pps. That seems skewed. Then my 4 core amd does about 20. Between them I've found 5 blocks in 16 hours

I might be wrong as I don't what your laptop is but I'd imagine it contains an M version of the i7 processor.

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July 08, 2013, 08:31:00 PM
 #587

I have a very strong academic mathematics background. 'scientific value' is a subjective statement. Most mathematicians would regard anything new or original as advancing mathematics. Do you think patterns in integers have scientific value? Depends on the pattern to an extent and if there are any clear consequences but you'll get varied answers to that question. Some mathematicians and especially scientists such as physicists are snobbish and only regard maths that has a 'real world' application as being useful. It's not clear to me whether this project is finding new prime chain sequences within the known prime numbers or actually trying to determine new, unknown prime numbers using the prime chains as a proof of work. Either way, it has value since it will add new data which will either disprove conjectures or strengthen the likelihood of them being true... plus the analysis of the discovered data could in theory lead to new conjectures (note I know next to nothing about these chains and how much data of them is out there, I'm just writing this reply of the top of my head).

You can also look at this another way. This project could provide a financial incentive for individuals to develop more optimised GPU prime finding algorithms, the theory of which could lead to a greater understanding of prime number distribution e.g. a new sieve or similar construct.

Sunny, can you please clarify whether this project is finding new prime chain sequences within the known prime numbers or actually trying to determine new, unknown prime numbers using the prime chains as a proof of work.

Of course these primes are all 'new'. Finding 'new' primes is not the point, and primes are super-abundant there is no database can store them, it's always trivial to find one not stored in any database.

The point of GIMP is to find the largest known (Mersenne) prime, while the point of primecoin is to find longest chain of reasonable size limit (256 bits to 2000 bits as currently designed). Which one of the two projects is more useful is highly debatable actually. Mersenne has a very long history of study, its infinite existence is not known and they are scarce (only about 50 of them known). While for prime chains, as pointed out by my design paper, these prime chains are connected to the distribution of primes, their infinite existence and distribution is among the top wonders of arithmetic, you know how much mathematician value twin prime conjecture right? At right now I think some mathematicians consider the distribution of these longer chains hopelessly untouchable, and maybe will stay another millenium  Wink  

I am still having difficulty understanding this pow. If your proof of work is done by generating these prime chains, how is this related to your blockchain?
 How am I prevented from producing lots of prime chains in my own time and then using them all at once for a double spend?
 I am sure that you have thought of all this but I can't find enough details in your design papers to satisfy my curiosity. Maybe I'm just not looking hard enough. Can you give me the links to all your technical stuff in case I've missed something.
 It's a really interesting idea - I'm just trying to get a full understanding of exactly what the pow does.
Thanks.
 
 
OnkelPaul
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July 08, 2013, 08:33:06 PM
 #588

The prime chain of each block is built starting from its hash (in a way) so you cannot simply compute any chain in advance.

Onkel Paul

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July 08, 2013, 08:34:35 PM
 #589

Gentoo ebuild of the daemon here, for the true believers. Modified from bitcoind 0.8.2 ebuild.

https://github.com/teknohog/ebuilds/tree/master/net-p2p/primecoind

Any guide on how to use it?

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July 08, 2013, 08:41:40 PM
 #590

The prime chain of each block is built starting from its hash (in a way) so you cannot simply compute any chain in advance.

Onkel Paul

I see, thanks.
Just noticed that there is a lot of info on this that I missed.
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July 08, 2013, 08:41:48 PM
 #591

I'll put up one Bitcoin in bounty for a CPU-miner (standalone) that will run on both windows and linux and outperform the built-in miner.
How much does it need to outperform it?
I'm looking into possibly adding support to BFGMiner.

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July 08, 2013, 08:42:20 PM
 #592

Finally mined 19.47XPM on my i3 2120 with only 1 core.
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July 08, 2013, 08:47:12 PM
 #593

How long till blocks mature?  
gatra
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July 08, 2013, 08:47:35 PM
 #594

I'll put up one Bitcoin in bounty for a CPU-miner (standalone) that will run on both windows and linux and outperform the built-in miner.
How much does it need to outperform it?
I'm looking into possibly adding support to BFGMiner.

since primespersec doesn't seem to have comparable meaning, it would be difficult to compare performance. Maybe primespersec could be normalized to the size of the primes and to the length of the chain?


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.flixxo   
Boing7898
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July 08, 2013, 08:48:21 PM
 #595

I'll put up one Bitcoin in bounty for a CPU-miner (standalone) that will run on both windows and linux and outperform the built-in miner.
How much does it need to outperform it?
I'm looking into possibly adding support to BFGMiner.
So there's gonna be GPU mining?
com911
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July 08, 2013, 08:53:30 PM
 #596

RPCport for client?

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July 08, 2013, 08:53:54 PM
 #597

How much does it need to outperform it?
I'm looking into possibly adding support to BFGMiner.

Shouldn't be hard to beat my built-in miner, it was meant to be a basic reference miner and I could be missing quite a bit of simple optimizations.

For example it currently uses an adaptive primorial multiplier which is quite wasteful as I don't have a good understanding of the relationship between the size of primorial multiplier and mining performance.
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July 08, 2013, 08:55:49 PM
 #598

How long till blocks mature?  

Approx 2 days
Vorksholk
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July 08, 2013, 08:59:55 PM
 #599

I'll put up one Bitcoin in bounty for a CPU-miner (standalone) that will run on both windows and linux and outperform the built-in miner.
How much does it need to outperform it?
I'm looking into possibly adding support to BFGMiner.

Hell, 20%? Adding it to BFGMiner would be awesome Smiley

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July 08, 2013, 09:00:09 PM
 #600

I'll put up one Bitcoin in bounty for a CPU-miner (standalone) that will run on both windows and linux and outperform the built-in miner.
How much does it need to outperform it?
I'm looking into possibly adding support to BFGMiner.
So there's gonna be GPU mining?

Problem is it would be hard to compare, I plan on getting two identical machines, running them side-by-side, and every 2 minutes asking each for their hashrate, then averaging it over a 6-hour period.

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