[XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency

[highstr8]

anyone have any idea how to get an estimated blocks/day for a given primepersec?  also, any information on how this changes with total network "primepersec"?  Like how is difficulty worked into this system?

[xyzzy099]

anyone have any idea how to get an estimated blocks/day for a given primepersec?  also, any information on how this changes with total network "primepersec"?  Like how is difficulty worked into this system?

'Primespersec' is apparently not much of a metric at all.  It varies wildly on the same machine, and does not seem to be in any way predictive of mining success.

The difficulty, if I understand it correctly, is the minimum length of the Cunningham chain you have to find to mine a block.

[nmersulypnem]

Finally got my hands in the code.   The number of print statements without a debug flag is TOO DAMN HIGH!

[Zalfrin]

Compiling primecoind on windows seems to be working fine using the EasyWinBuilder link I provided on the last page. Now to see about doing some optimizations...

[Buffer Overflow]

There are a lot of angry miners out there. I myself and probably the most unlucky with this currency, but the last 48 hours has not been all bad luck. A lot of it has been block stealing by individuals unwilling to share their complete information in this thread (NOT PEOPLE WHO HAVE SHARED, YOU ARE INNOCENT).

Calm down. There has been no stealing to my knowledge. Plenty of health competition, but no stealing.
Why would people just give you free coins? What's wrong with buying them?

[96redformula]

I was getting blocks prior to 18 hours ago....None now .

[eule]

my last block:
"confirmations" : 2895,

[Moebius327]

It seems my blocks come in waves (3 in 1 hour) and then silence for 5-6 hours and again a wave of 3. And this keeps repeating for the last 24 hours.
Could this be an issue with the connection to the Primecoin network? Anyone having the same mining experience?

[ReCat]

What a spread.  

Spread-a-like-a-butter.

Nice to see that nobody wants to sell their coins for any baby values.

I just bought 150XPM for 0.10 LTC so price is going DOWN!!! sell

pics or it didnt happen

See last trades... proof enough

Also got bid on XPM/BTC section. Check it out

Lol. Whoever sold for that price was a total idiot. I just sold 100 XPM for 15.5 LTC. XPM up and going STRONG. 100 more mined XPM ready to sell when I decide to sell it.

[Ginsley]

It seems my blocks come in waves (3 in 1 hour) and then silence for 5-6 hours and again a wave of 3. And this keeps repeating for the last 24 hours.
Could this be an issue with the connection to the Primecoin network? Anyone having the same mining experience?

For me it was something like this too. 3 in about 2 hours, then 6-7 hours nothing, then 3 in about 2 hours again... now nothing for 13 hours... lets see

[96redformula]

It seems my blocks come in waves (3 in 1 hour) and then silence for 5-6 hours and again a wave of 3. And this keeps repeating for the last 24 hours.
Could this be an issue with the connection to the Primecoin network? Anyone having the same mining experience?

For me it was something like this too. 3 in about 2 hours, then 6-7 hours nothing, then 3 in about 2 hours again... now nothing for 13 hours... lets see

I don't think it is coincidence.

Most of us who started from the get go or have been on this coin awhile have noticed we are dropping off big time with the block finds.  I am just waiting for some kind soul to speak up on how they are mining away at them with another miner build.

[n4ru]

What a spread.  

Spread-a-like-a-butter.

Nice to see that nobody wants to sell their coins for any baby values.

I just bought 150XPM for 0.10 LTC so price is going DOWN!!! sell

pics or it didnt happen

See last trades... proof enough

Also got bid on XPM/BTC section. Check it out

Lol. Whoever sold for that price was a total idiot. I just sold 100 XPM for 15.5 LTC. XPM up and going STRONG. 100 more mined XPM ready to sell when I decide to sell it.

Sold mine for .01BTC each easy

[Scott J]

One block in last 20 hours here...

[lucasjkr]

I think a lot of people are frustrated because they don't understand the difference between pooled and solo mining.

In pooled mining, (ie, what we all do with Bitcoin), the work is broken down into a ton of discrete chunks - each miner is compensated when a block is solved based on their proportion of work contributed - ie everyone gets a slow, steady and somewhat predictable payout.

Solo minings different - blocks don't get shared, so each individual gets a much greater payout, but whether they get it or not is a LOT more dependent on whether they're lucky enough to solve a block before someone else does. There have only been 8000 or so blocks solved so far. I've got the miner running on various computers at varying pps rates - during the first 17 hours or so, I solved no blocks at all. Then they started getting solved. And the thing was, the difference between the number of blocks solved from a computer running at 10 pps and another running at 150pps is much smaller than the difference in prime generation rate.

So, there are 8000 blocks awarded so far.

Lets say there are 500 people attempting to mine them and each person is using 3 computers to do so - on average, if they've all been mining since the beginning, each computer would have solved 5.333 blocks. But the distribution is a lot more random; some people will have gotten 5 blocks, others have gotten zero, and others have gotten 20+. But that's the thing with solo mining. And if, in the beginning, there were only 50 people mining during the first hour, 200 mining 6 hours later, and 500 24-hours later, of course there will be drop-offs in the rate that people see blocks get solved...

Given the newness of the coin, the lack of markets for it, etc, I'd be shocked if someone had already figured out how to have a GPU solve the problems - it's not just rewriting the existing SHA algorithm that bitcoin uses, changing a couple lines to make it primecoin ready, it's revising everything about the miner to handle a completely different type of work. Optmizing the CPU miner? Sure. But even so, I don't think they'ed be churning out coins in this environment, as, again, I think the payout has a lot more to do with luck at this point than anything else including raw horse power.

Putting together some charts to demonstrate the distribution of the rewards I've seen so far.... maybe someone will find it to be of interest, who knows?

But in the meantime, if people want to see more predictable coin generation, then maybe they should start a fund to pay a bounty to the first person to develop a mining pool? i assume it'll be a lot of work, because, again, the dynamics of this coin are much different than any of the others, including this time to "mature". Or, you could make an informal "pool" with someone you know and really trust - just have both of you mine to the same wallet.dat file, and, as you add machines, the randomness that a single miner sees will be evened out more and more...

That my two cents. Utterly useless, because I'm not a programmer. But so far, I'm pretty excited about this coin and I can't quite fathom why people are getting upset with it already?

[ReCat]

Im not frustrated; I'm glad as hell. I'm riding on 22 LTC of 140 sold XPM I mined in the past few days, with 50 XPM coming up.

[n4ru]

I think a lot of people are frustrated because they don't understand the difference between pooled and solo mining.

In pooled mining, (ie, what we all do with Bitcoin), the work is broken down into a ton of discrete chunks - each miner is compensated when a block is solved based on their proportion of work contributed - ie everyone gets a slow, steady and somewhat predictable payout.

Solo minings different - blocks don't get shared, so each individual gets a much greater payout, but whether they get it or not is a LOT more dependent on whether they're lucky enough to solve a block before someone else does. There have only been 8000 or so blocks solved so far. I've got the miner running on various computers at varying pps rates - during the first 17 hours or so, I solved no blocks at all. Then they started getting solved. And the thing was, the difference between the number of blocks solved from a computer running at 10 pps and another running at 150pps is much smaller than the difference in prime generation rate.

So, there are 8000 blocks awarded so far.

Lets say there are 500 people attempting to mine them and each person is using 3 computers to do so - on average, if they've all been mining since the beginning, each computer would have solved 5.333 blocks. But the distribution is a lot more random; some people will have gotten 5 blocks, others have gotten zero, and others have gotten 20+. But that's the thing with solo mining. And if, in the beginning, there were only 50 people mining during the first hour, 200 mining 6 hours later, and 500 24-hours later, of course there will be drop-offs in the rate that people see blocks get solved...

Given the newness of the coin, the lack of markets for it, etc, I'd be shocked if someone had already figured out how to have a GPU solve the problems - it's not just rewriting the existing SHA algorithm that bitcoin uses, changing a couple lines to make it primecoin ready, it's revising everything about the miner to handle a completely different type of work. Optmizing the CPU miner? Sure. But even so, I don't think they'ed be churning out coins in this environment, as, again, I think the payout has a lot more to do with luck at this point than anything else including raw horse power.

Putting together some charts to demonstrate the distribution of the rewards I've seen so far.... maybe someone will find it to be of interest, who knows?

But in the meantime, if people want to see more predictable coin generation, then maybe they should start a fund to pay a bounty to the first person to develop a mining pool? i assume it'll be a lot of work, because, again, the dynamics of this coin are much different than any of the others, including this time to "mature". Or, you could make an informal "pool" with someone you know and really trust - just have both of you mine to the same wallet.dat file, and, as you add machines, the randomness that a single miner sees will be evened out more and more...

That my two cents. Utterly useless, because I'm not a programmer. But so far, I'm pretty excited about this coin and I can't quite fathom why people are getting upset with it already?

this guy gets it. GPU mining this coin is radically different. There's a reason XPM is getting traction and isn't just another altcoin.

[masterOfDisaster]

Hi,

as the search function didn't show any matches I kindly want to ask, if someone can tell me whether IPv6 is supported by primecoin or not. I found out that it is supported by bitcoin since 0.7. Although i assume that a lot of the code has been forked from bitcoin, I would really like not only to assume, but to know if IPv6 is supported by primecoin...
"getpeerinfo" shows only IPv4 connections, but that might be due to the fact that my current internet access is IPv4 only. But that will change soon...

Kind regards

[Buffer Overflow]

Hi,

as the search function didn't show any matches I kindly want to ask, if someone can tell me whether IPv6 is supported by primecoin or not. I found out that it is supported by bitcoin since 0.7. Although i assume that a lot of the code has been forked from bitcoin, I would really like not only to assume, but to know if IPv6 is supported by primecoin...
"getpeerinfo" shows only IPv4 connections, but that might be due to the fact that my current internet access is IPv4 only. But that will change soon...

Kind regards

Yes if compiled with the USE_IPV6 flag.

[Zalfrin]

Here's a diff/patch I made off a freash git clone with the changes mentioned and some makefile changes I used.
<snip>

Thanks much, oroqen. Changes compile fine and make sense.

[nmersulypnem]

Here's a diff/patch I made off a freash git clone with the changes mentioned and some makefile changes I used.
<snip>

Thanks much, oroqen. Changes compile fine and make sense.

Why  +USE_UPNP:=1 ?  I thought setting this flag to 0 made it embed PNP (hence faster and more distributable to other machines).