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Author Topic: [XPM] [ANN] Primecoin High Performance | HP14 released!  (Read 394244 times)
teknohog
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January 03, 2014, 10:39:50 PM
 #2481

how much money can we make off primecoin?

If you really want to strike gold with primes, try mersenne.org, they give you a few thousand bucks for each new Mersenne prime Grin

Transactions can optionally carry transaction fees. Whoever mines the block which ends up containing your transaction will get the fee. The Bitcoin client will sometimes force you to pay a fee when it thinks that no miner will accept your transaction otherwise.
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1511337843
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Trillium
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January 04, 2014, 03:45:08 AM
 #2482

how much money can we make off primecoin?

If you really want to strike gold with primes, try mersenne.org, they give you a few thousand bucks for each new Mersenne prime Grin

If you don't have any computers with half decent CPUs, then you are out of luck. If you have a bunch of computers around with at least core2duo era CPU then you may be able to make a small profit or attain break even against electricity costs. With my systems at home, in Australia with $0.30/kWh and a bunch of core2/i5/i7 CPUs I was able to only just reach break even against my entire electricity bill (including hot water etc). ie. mining on average $7 to $8 per day and paying that much per day in electricity. However, this was BEFORE diff=10, so it's probably a lot different now.

If you have no electricity costs then you might be able to scrape together a few $/day. Then it purely becomes "how much hardware do you have" and "how cheaply can you attain new hardware".

You probably cannot sustain profitable VPS mining if you had to ask this question. Only consider VPS mining if you run the figures in great detail before you purchase anything. A lot of VPS miners ran at a loss even during the earlier days of primecoin mining, I suspect not too many do it these days now we are past diff 10. The market bolstering caused by BTC-e adding XPM to their site, probably helps a lot if anyone still does VPS mining. I suppose some early VPS miners may have held all their mined XPM and now that the XPM market and BTC price have exploded then they may have done quite well for themselves, but this is a gamble I'd say most people are unlikely to make lightly.

If you want to mine with large profit margins (larger than mining BTC or other SHA-256 altcoins with ASIC) then you should look at scrypt coins "shitcoin flavour of the day" which according to my own (personal situation re electricity) calculations can have margins of 3:1 or 4:1 vs electricity costs and reach "ROI" within 60-90 days. To the best of my knowledge no one mining CPU coins (XPM/PTS/Quark-based) or SHA-256 (inc BTC) can claim such high margins. The biggest downside to scrypt coins seems to be that if you aim to make absolutely maximum return then you need to devote a (un?)reasonable amount of time each day to monitoring the best coin to mine / preparing to mine newly released coins etc... This is only becoming more true as new coins (and even old ones) are adjusting to negate the effects of profit-switching pools, which means that you can no longer even take that lazy option.

BTC:1AaaAAAAaAAE2L1PXM1x9VDNqvcrfa9He6
SStalin
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January 04, 2014, 08:03:36 AM
 #2483

Who can explain as complexity grows, in how many complexity 10.5 is more than complexity 10?
Supercomputing
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January 04, 2014, 09:36:54 AM
 #2484

Who can explain as complexity grows, in how many complexity 10.5 is more than complexity 10?

About 2x

http://primecoin.org/static/primecoin-paper.pdf

Electrical Engineering & Computer Science
http://www.eecs.mit.edu/
mikaelh
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January 04, 2014, 10:37:58 AM
 #2485

So I compiled this on ubuntu 13.10 and I seem to get a segmentation error/can't connect to server as at approaches or reaches difficulty 10 (when downloading the block).  Is anyone else seeing this?  I have another server running the non updated version for multi-wallet.

error: couldn't connect to server
[1]+  Segmentation fault      (core dumped) ./primecoind


This is in the debug.log
ERROR: mempool transaction missing input


EDIT: I was able to start it up for a very shot period of time before it failed again but I noticed this occurs somewhere between 279042 - 279060 blocks.  I figured it was too much of a coincidence if two separate PCs experienced this at the same time.

I haven't seen this issue before but similar issues have happened with Bitcoin before. They seems to be related to the wallet mining code, so try starting the wallet without the miner.
mikaelh
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January 04, 2014, 11:40:18 AM
 #2486

Has anyone compiled the latest git version for windows 64 ?

I have (obviously) but I'm not quite ready to make a release yet. I've been working on some other improvements that I want to get done before I make a release. I pushed a whole bunch of commits to github if someone wants to have a look.
primer-
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January 04, 2014, 12:23:02 PM
 #2487

Has anyone compiled the latest git version for windows 64 ?

I have (obviously) but I'm not quite ready to make a release yet. I've been working on some other improvements that I want to get done before I make a release. I pushed a whole bunch of commits to github if someone wants to have a look.

New debug.log chain statistics look great!
EDIT: We are also seeing a slight increase in speed(chainsperday). Should we leave new sieve options default or is it ok to use modified options that worked well in previous version ?
madmartin
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January 04, 2014, 02:24:56 PM
 #2488


I've been working on some other improvements that I want to get done before I make a release. I pushed a whole bunch of commits to github if someone wants to have a look.

You have been busy as a bee - looks very good and compiles without problems on my gentoo linux!
SStalin
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January 04, 2014, 07:11:51 PM
 #2489

Who can explain as complexity grows, in how many complexity 10.5 is more than complexity 10?

About 2x

http://primecoin.org/static/primecoin-paper.pdf

 d = k + (pk-r)/pk
I so have understood, that d - - complexity how properly to use the formula, to define the future complexity concerning today's hardware?
primer-
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January 04, 2014, 09:27:08 PM
 #2490

Has anyone compiled the latest git version for windows 64 ?

I have (obviously) but I'm not quite ready to make a release yet. I've been working on some other improvements that I want to get done before I make a release. I pushed a whole bunch of commits to github if someone wants to have a look.

Make sure new official build is difficulty 11 ready, at the current rate we will be hitting 11 diff. early Feb. Sad
bearmeat
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January 05, 2014, 02:07:23 AM
 #2491

So I compiled this on ubuntu 13.10 and I seem to get a segmentation error/can't connect to server as at approaches or reaches difficulty 10 (when downloading the block).  Is anyone else seeing this?  I have another server running the non updated version for multi-wallet.

error: couldn't connect to server
[1]+  Segmentation fault      (core dumped) ./primecoind


This is in the debug.log
ERROR: mempool transaction missing input


EDIT: I was able to start it up for a very shot period of time before it failed again but I noticed this occurs somewhere between 279042 - 279060 blocks.  I figured it was too much of a coincidence if two separate PCs experienced this at the same time.

I haven't seen this issue before but similar issues have happened with Bitcoin before. They seems to be related to the wallet mining code, so try starting the wallet without the miner.

Thanks that works.
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January 05, 2014, 07:03:52 AM
 #2492

Has anyone compiled the latest git version for windows 64 ?

I have (obviously) but I'm not quite ready to make a release yet. I've been working on some other improvements that I want to get done before I make a release. I pushed a whole bunch of commits to github if someone wants to have a look.

Make sure new official build is difficulty 11 ready, at the current rate we will be hitting 11 diff. early Feb. Sad

Any scripts that can automate this on VPS?

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primer-
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January 06, 2014, 02:48:13 PM
 #2493

Has anyone compiled the latest git version for windows 64 ?

I have (obviously) but I'm not quite ready to make a release yet. I've been working on some other improvements that I want to get done before I make a release. I pushed a whole bunch of commits to github if someone wants to have a look.

Please compile the current beta version for windows x86.
mhps
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January 06, 2014, 11:49:36 PM
 #2494

Has anyone compiled the latest git version for windows 64 ?

I have (obviously) but I'm not quite ready to make a release yet. I've been working on some other improvements that I want to get done before I make a release. I pushed a whole bunch of commits to github if someone wants to have a look.

Please compile the current beta version for windows x86.

current algorithms uses 64bit capablity to accelerate mining. x86 is so slow you mighy as well use old miners that came with x86 binaries.

BTC 1HxvAEC4nj37hyenz9DwsyrMMnkwzpbzno PPC PU6zS8RRBWP2UxhuRFengGsu8n4tEYB5xV XPM AJAgBpPjGQoL38mrtW91dVqhbMHqu25vfG
mikaelh
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January 08, 2014, 11:06:35 AM
 #2495

EDIT: We are also seeing a slight increase in speed(chainsperday). Should we leave new sieve options default or is it ok to use modified options that worked well in previous version ?

The defaults should still be pretty good. I did get rid of -sievepercentage in favor of -sievefilterprimes. -sievefilterprimes is used to specify the exact number of primes that will be filtered out by the sieve (instead of some percentage of a number that depends on -sievesize). The default is 7849 based on the old defaults.

There's also two new parameters you can try:

 * -l1cachesize determines the sieve segment size (in bytes). This should be the size of the L1 or L2 cache (or some other number close to them). The default value is 28000. This value has a minor impact on mining performance.

 * -primorial determines the primorial that is used as a multiplier in all candidate numbers. This should a small prime number such as 47 or 53. Use the parameters -debug -printprimorial to see which primorials are used by default. This value has a minor impact on mining performance.

The rest of the documentation is here:
https://github.com/mikaelh2/primecoin/blob/master/doc/README.md

Make sure new official build is difficulty 11 ready, at the current rate we will be hitting 11 diff. early Feb. Sad

HP11 should already work just fine with difficulty 11. And I doubt we'll be hitting difficulty 11 that soon because it would require 30 times more mining power.
Supercomputing
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January 08, 2014, 08:33:44 PM
 #2496

Has anyone compiled the latest git version for windows 64 ?

I have (obviously) but I'm not quite ready to make a release yet. I've been working on some other improvements that I want to get done before I make a release. I pushed a whole bunch of commits to github if someone wants to have a look.

Please compile the current beta version for windows x86.

current algorithms uses 64bit capablity to accelerate mining. x86 is so slow you mighy as well use old miners that came with x86 binaries.

Hmmm, a modern day x86 CPU is capable of executing 16-bit, 32-bit, and 64-bit instructions.

Electrical Engineering & Computer Science
http://www.eecs.mit.edu/
mikaelh
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January 10, 2014, 03:55:45 PM
 #2497

Here's an updated formula for calculating blocks/day:

blocks/day = chains/day * (0.97 * (1 - fracDiff) + 0.03)

Here fracDiff is the fractional part of the difficulty, i.e. fracDiff = diff - floor(diff).

This is simply assuming that it's a 0.03 probability for the (k+1)'th number being prime in a chain. These result in longer chains which are not subject to the fractional difficulty. This number was produced by the function EstimateNormalPrimeProbability() in my latest code. It's a bit smaller than my previous estimate of 0.035 being the probability.
AnhBen
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January 10, 2014, 06:20:43 PM
 #2498

Here's an updated formula for calculating blocks/day:

blocks/day = chains/day * (0.97 * (1 - fracDiff) + 0.03)

Here fracDiff is the fractional part of the difficulty, i.e. fracDiff = diff - floor(diff).

This is simply assuming that it's a 0.03 probability for the (k+1)'th number being prime in a chain. These result in longer chains which are not subject to the fractional difficulty. This number was produced by the function EstimateNormalPrimeProbability() in my latest code. It's a bit smaller than my previous estimate of 0.035 being the probability.

Can you add this to the next release so that we all can at least see it when running getmininginfo/getinfo?

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donschoe
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January 10, 2014, 09:36:48 PM
 #2499

Here's an updated formula for calculating blocks/day:

blocks/day = chains/day * (0.97 * (1 - fracDiff) + 0.03)

Here fracDiff is the fractional part of the difficulty, i.e. fracDiff = diff - floor(diff).

This is simply assuming that it's a 0.03 probability for the (k+1)'th number being prime in a chain. These result in longer chains which are not subject to the fractional difficulty. This number was produced by the function EstimateNormalPrimeProbability() in my latest code. It's a bit smaller than my previous estimate of 0.035 being the probability.

Good one. I will add this to my bot, thanks!

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January 11, 2014, 07:05:12 AM
 #2500

Hey guys I'm trying to solomine xpm for the first time. And after I launch qt I've got my CPU running at 100% BUT getmininginfo shows primespersec is 0. My CPU - Core i7 2600K overclocked. How can I ensure that I'm mining?

{
"blocks" : 353416,
"chainspermin" : 0,
"chainsperday" : 0.00000000,
"currentblocksize" : 1906,
"currentblocktx" : 4,
"difficulty" : 10.32599312,
"errors" : "",
"generate" : true,
"genproclimit" : 7,
"primespersec" : 0,
"pooledtx" : 4,
"sieveextensions" : 9,
"sievepercentage" : 10,
"sievesize" : 1000000,
"testnet" : false
}


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