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 Author Topic: [XPM] [ANN] Primecoin High Performance | HP14 released!  (Read 397389 times)
teknohog
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555

 July 18, 2013, 08:06:09 AM

I don't think that's quite it, but it's close.  I don't think this is a case where we can use 30 as the ratio between each chain length; empirically it seems to be off, at the very least--I've estimated it as closer to 12 by looking at the gap between 1- and 5-chains.

Also, that would not be the blocks per hour; it would be the number of 8-chains per hour.  Primecoin has a fractional difficulty that is roughly linear, so if the difficulty is 8.5 then about half of all 8-chains are not valid work shares.  If the difficulty is 8.99 then only 1 in 100 8-chains are valid.  You need to account for that before you arrive at blocks per hour.  Generally it is blocks per hour = 8-chains/h * (1+difficulty-floor(difficulty)), but when you get close to the next integer difficulty things get weird since 9-chains work for difficulty 8.XX and 9-chains are more common than 8.995 chains.

Aha, so while the integer part is logarithmic, the fractional part is linear? I thought the fractional part was represented in a way that makes the entire number smoothly logarithmic (if you have something linear, just take the log, then the addition of these parts corresponds to multiplication in the "original" difficulty space).

Of course, if there are these complications close to the next integer, it won't work exactly, but it might be a useful estimate for long-term block rewards anyway. It's not like mining calculators can guarantee when you find the next block In fact, whether the fractional part is logarithmic or linear won't make such a huge difference, because a huge majority of the difficulty is in the integer part. (Putting my physicist hat on - we're interpolating between two points we know to be correct, so it's hard to make any huge deviations, especially when you are close to either point.)

I admit the base must be much more like 12 than 30, when looking at past block rates. I wonder where the 30 came from, though, I recall seeing it in a number of posts...

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forsetifox
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 July 18, 2013, 08:09:35 AM

I've just downloaded the new wallet. It won't sync and says: No block source available.

What should I do?

You probably need some nodes. Add these to your config file.

blastbob
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 July 18, 2013, 08:15:48 AM

I've just downloaded the new wallet. It won't sync and says: No block source available.

What should I do?

You probably need some nodes. Add these to your config file.

Mostly amazon ips i see

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Kujmandosz
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 July 18, 2013, 08:17:11 AM

Can you post a general config setup for me here?

rethaw
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 July 18, 2013, 08:17:39 AM

I've just downloaded the new wallet. It won't sync and says: No block source available.

What should I do?

It looks like the seed nodes are getting pummeled a bit, one of the side effects of huge popularity! I think if you're patient a spot will open up.

forsetifox
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 July 18, 2013, 08:29:55 AM

Can you post a general config setup for me here?

gen=0
server=1
rpcuser=homersimpson
rpcallowip=192.168.*.*   <-- change this to what your network ip range is.
rpcport=9910
jubalix
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 July 18, 2013, 08:43:15 AM

well

looks like I have stopped finding blocks....diff to high now....

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junglist.massive
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 July 18, 2013, 08:46:34 AM

what is best primecoin mining client?
blastbob
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 July 18, 2013, 08:47:10 AM

what is best primecoin mining client?

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junglist.massive
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 July 18, 2013, 08:55:54 AM

meh

I;m looking something for win 32bit
junglist.massive
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 July 18, 2013, 08:56:20 AM

btw casio4life
junglist.massive
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 July 18, 2013, 09:01:28 AM

I know that I can mining on wallet but I'm looking for something faster for win 32
markm
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 July 18, 2013, 09:17:02 AM

I know that I can mining on wallet but I'm looking for something faster for win 32

Again, it's around these forums. Look for mikaelh.

Huh, isn't that what this thread itself is about?

(I guess if I read the first post of the thread I'd know that, but I haven't in so long and these questions really have me wondering now...)

If the objective is an external mining program, then there might be bounties one can contribute to that aim at getting such a thing built, though maybe mostly they want it to be able to use GPUs.

There is the luke's miner prime branch project too though which maybe hasn't even had bounties thrown at it yet...

-MarkM-

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notme
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 July 18, 2013, 09:18:41 AM

Does anyone have a clone of the repo?  Github has taken it down for excessive use of resources.

Edit: sf link, duh

https://www.bitcoin.org/bitcoin.pdf
While no idea is perfect, some ideas are useful.
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markm
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 July 18, 2013, 09:19:32 AM

Does anyone have a clone of the repo?  Github has taken it down for excessive use of resources.

Yeah the people who provided links to such repos right here in this thread do, or are theirs down too now?

-MarkM-

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versificateur
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 July 18, 2013, 09:21:19 AM

Hi all!
Is there any guide to build primecoin-qt on ubuntu 13.04 or someone could help me? (I saw a screenshot on ubuntu)

Just cd into the source directory (usually 'primecoin') and compile the qt client:

Code:
qmake bitcoin-qt.pro USE_UPNP=-
make

that's all... the binary then appears in the source folder. Of course it might stop while missing some dependencies, but it will tell you...

Thanks! I finally won't use it. primecoind runs fine for me. Turn my rig on 12h ago and already got two block
idny
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 July 18, 2013, 09:28:28 AM

well

looks like I have stopped finding blocks....diff to high now....

Same here. 3500 PPS
Nothing in 72 hours. Was getting 2/3 blocks per day before.

But then again, since I changed to HP4 from the Sunny's version i've had nothing.
paulthetafy
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 July 18, 2013, 09:32:01 AM

well

looks like I have stopped finding blocks....diff to high now....

Same here. 3500 PPS
Nothing in 72 hours. Was getting 2/3 blocks per day before.

But then again, since I changed to HP4 from the Sunny's version i've had nothing.
I can assure you that mikealh's hp4 is the best version out there.  The reason you're not getting blocks is now high difficulty & bad luck.  I have several 10k PPS machines and some of them are not finding blocks in 24 hours now.  Then I have others that have found 3-4 in the same time.  Just be patient.  Or try the pool.
Newbie

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 July 18, 2013, 09:33:25 AM

I`ve found only 8 blocks total. (using hp2 and hp3) And now for 30 hours of mining no block.... (using hp4)
markm
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 July 18, 2013, 09:34:26 AM

Yeah its definitely time for everyone but me to stop mining, it is getting way too hard.

-MarkM-

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