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 Author Topic: [XPM] [ANN] Primecoin High Performance | HP14 released!  (Read 392667 times)
Koooooj
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Activity: 75

 July 17, 2013, 11:50:59 PM

This shouldn't be taken as 100% correct, but I seem to remember it being mentioned that each step up in chain length is a 30 fold increase. so an 8 length chain would be 30x more difficult than a 7 length chain, and a 9 length chain would then be 900x more difficult than a 7 length chain.

So in other words, your average rate of blocks per hour would be the 5-chain rate / 30^(diff - 5). Time to write a script...

Edit: updated the script.

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.
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1508768353
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edn247
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 July 18, 2013, 12:10:10 AM

Haven't got any primes in a while, but probably getting too hard for a pair of i7 laptops...  difficulty=8.9630686
achillez
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Activity: 808

 July 18, 2013, 02:12:06 AM

anyone have a way to measure difficulty? I'm seeing a big drop in my cpu cluster with blocks as well
ivanlabrie
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Activity: 812

 July 18, 2013, 02:21:22 AM

Go to console and type getdifficulty.
Luckybit
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 July 18, 2013, 03:12:40 AM

Gentoo ebuild of hp4:

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

BTW, in case you wonder about different ebuilds from different people, mine are not just straight from the source, but based on bitcoind from Portage. They include a patch to use system leveldb, instead of building its own copy each time.

#Darren
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 July 18, 2013, 04:32:47 AM

Very odd....

When I got up today both my Primecoin wallets were not connected, it appears the internet connection went down.  So I reconnected them.

When I first observed offline wallet #1 this morning it showed a total of 102.?? xpm which was strange because the accepted coins seemed no different than when I went to bed but at that time the total was 85.?? + immature 12.??  which when matured would give me 98.??    And my last coin batch had been received on the 17 July.

I turned off the wallet and reconnected the internet.  When I restarted the wallet it reverted to displaying what I recall it had shown the night before, with 85.60 xpm + immature 12.45, however it now showed a immature coin batch as received on 18th July (not there before), and it still showed a SINGLE coin batch as received on the 17th (but with a different timestamp to before).   All other coins received dates and times seem not to have changed.  In order to make the totals add up it is as if an older mined coin batch has disappeared but that would not add up with the total approx xpm due to diff bounty sizes and I have had no bad coins.

I understand there were some date stamp issues occurring, but still this doesn't make any sense at all...

All thoughts welcomed!

#Darren
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 July 18, 2013, 05:03:00 AM

Hmm..  I've rethought this...

maybe there were 2 payments on the 16th (although I'd only remembered there being one) and one of the 16th payments has been restamped as the 17th and the 17th payment has been restamped as the 18th, although having said that all other previous payments are still showing original date/time stamps.  Would that be possible?

Also, doesn't explain the 102.?? xpm total that was showing.
n4ru
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Activity: 322

 July 18, 2013, 05:04:53 AM

Keep those prices high

By the way, two of these blocks are only a SINGLE block apart, haha!

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yourofl10
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Activity: 168

 July 18, 2013, 05:20:49 AM

Keep those prices high

Whaaaaat... what's your PPS and build?

n4ru
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Activity: 322

 July 18, 2013, 05:21:02 AM

Keep those prices high

Whaaaaat... what's your PPS and build?
Over 600k PPS, HP4.

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yourofl10
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Activity: 168

 July 18, 2013, 05:29:49 AM

Keep those prices high

Whaaaaat... what's your PPS and build?
Over 600k PPS, HP4.

Shit! How? EC2?

n4ru
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Activity: 322

 July 18, 2013, 05:30:48 AM

Nope. None of those are profitable anymore. Private VPNs. Pretty certain no one else is mining XPM with them.

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superfluouso
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 July 18, 2013, 05:45:49 AM

Nope. None of those are profitable anymore. Private VPNs. Pretty certain no one else is mining XPM with them.

uhhh...what? shed more light?
n4ru
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Activity: 322

 July 18, 2013, 05:48:58 AM

WOW, already getting flooded with PMs.

Take off your tinfoil hats people. I'm NOT GPU mining. I'm simply running a lot of high power private servers.

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paulthetafy
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 July 18, 2013, 05:50:46 AM

WOW, already getting flooded with PMs.

Take off your tinfoil hats people. I'm NOT GPU mining. I'm simply running a lot of high power private servers.
then maybe stop broadcasting it just to brag

n4ru
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Activity: 322

 July 18, 2013, 05:51:16 AM

WOW, already getting flooded with PMs.

Take off your tinfoil hats people. I'm NOT GPU mining. I'm simply running a lot of high power private servers.
then maybe stop broadcasting it just to brag
I don't mind answering questions/getting flames/etc, but apparently everyone thinks I'm beating out people because of a GPU miner.

ETH-Nova - Fully Automated OC/PL/P-state/Mining/Monitoring for Windows
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superfluouso
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Activity: 202

 July 18, 2013, 05:57:26 AM

WOW, already getting flooded with PMs.

Take off your tinfoil hats people. I'm NOT GPU mining. I'm simply running a lot of high power private servers.
then maybe stop broadcasting it just to brag
I don't mind answering questions/getting flames/etc, but apparently everyone thinks I'm beating out people because of a GPU miner.
Would have been beneficial to you and the board if you were just more explicit.  So you have 1 vpn? 2? and on each of these what type of servers? how many? how many cores in each?

Edit:  Also you imply VPS's are no longer profitable, when it appears you could simply duplicate what you're doing w/ vps so I'm not clear how its not equally profitable, unless you're using someone else's server in a datacenter whose resources are paid by someone else.
n4ru
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Activity: 322

 July 18, 2013, 06:01:51 AM

WOW, already getting flooded with PMs.

Take off your tinfoil hats people. I'm NOT GPU mining. I'm simply running a lot of high power private servers.
then maybe stop broadcasting it just to brag
I don't mind answering questions/getting flames/etc, but apparently everyone thinks I'm beating out people because of a GPU miner.
Would have been beneficial to you and the board if you were just more explicit.  So you have 1 vpn? 2? and on each of these what type of servers? how many? how many cores in each?

Edit:  Also you imply VPS's are no longer profitable, when it appears you could simply duplicate what you're doing w/ vps so I'm not clear how its not equally profitable, unless you're using someone else's server in a datacenter whose resources are paid by someone else.
Amazon/DO is no longer profitable. Private companies/datacenters is something different. I am paying for the services.

ETH-Nova - Fully Automated OC/PL/P-state/Mining/Monitoring for Windows
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teknohog
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Activity: 446

minor developer

 July 18, 2013, 07:44:39 AM

Why did you write this script? what did you change, and what problem did you solve?
Looks to me that its a python script, basicly a frontend for,
currency = {
"bitcoin": "BTC",
"chncoin": "CNC",
"litecoin": "LTC",
"namecoin": "NMC",
"ppcoin": "PPC",
"primecoin": "XPM",
}
Makes bitcoind/primecoind/... usage easier, etc. updated script also tries to estimate block finding time for XPM also.

I should probalby have linked to the readme instead. These are some of my personal cryptocoin scripts I've been building up since 2010, and I'm not sure if they are useful to anyone else, but feel free to grab some ideas.

Kujmandosz
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Activity: 196

 July 18, 2013, 08:04:45 AM

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

What should I do?
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