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Author Topic: [ANN][GAP] Gapcoin - Prime Gap Search - New Math Algo - CPU / GPU - Zero Premine  (Read 284990 times)
BitcoinFX
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May 19, 2016, 11:34:49 AM
Last edit: May 19, 2016, 11:45:54 AM by BitcoinFX
 #1301

... My point was mostly that spreading out the shift values would result in more even coverage leading to more records. ...

PCs with a number of CPUs (--threads) can of course try solo mining with multiple instances in this regard.

Simply by coping the gapminer-cpu folder and relabeling it as gapminer-cpu-2 with a new desktop shortcut and alternative settings.

So, for a total of --threads 8 (example) running 2x gapminer-cpu instances;

gapminer-cpu;

Code:
--shift 512 --crt crt/crt-22m-512s.txt --threads 4 --fermat-threads 3 --sieve-primes 10000

gapminer-cpu-2;

Code:
--shift 896 --crt crt/crt-22m-896s.txt --threads 4 --fermat-threads 3 --sieve-primes 10000


--fermat-threads must be 1 less than --threads per instance for mining to function correctly.


The combined pps (high) avg. per. instance is still around 15,000,000 pps of course.

N.B. that running 2x gapminer-cpu instances increased system RAM usage by upwards of 20%
  

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May 19, 2016, 01:02:10 PM
 #1302

Is there any advantage of going --shift 512 (or higher) over --shift 25? I don't see a difference in blocks found.

BitcoinFX, how many blocks do you find daily on average with your Sandy?


Yes. Although, relative to your own CPUs (--threads) --fermat-threads and --sieve-primes settings and the network difficulty.

Mining with the --shift 512 settings;

The pps (high) avg. is 15,000,000 pps

gaps/s 900+ (1000+) / 900+ (1000+) avg.

gaplist 600,000 (avg.) with around a 1,200,000 high cap.

Approx. block [ ] % is around 1% +/- per. min. mining with 8 threads.

Found 11 confirmed blocks in the last 24 hours with these settings. The PC is factory overclocked to 4.1 GHz on all cores and with liquid cooling.

No other settings I've tested (as of yet) provide as large a pool of candidate gaps in the gaplist or increase the block percentage as quickly.

I also run a 6 core CPU like yours, though at 3.2 GHz only with 10 mining threads. It found 7.3 blocks on daily average over the last 10 days. Almost like yours adjusted for clock speed.
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May 25, 2016, 03:33:43 PM
 #1303

Does anybody know anything about https://github.com/Azure/azure-blockchain-projects/tree/master/baas-artifacts/linux-gapcoin

It's been mentioned a few times on the Polo trollbox, http://www.polonibox.com/?messageText=gapcoin and I've seen Azure, whatever it is, mentioned on several coins.

Not clear if it's something useful or some product Microsoft is pushing.

-

Looks like they have cloned / added Gapcoin to the Blockchain Artifact Library repo. for Azure DevTest Labs. a.k.a. BaaS "Blockchain as a Service" - https://github.com/Azure/azure-blockchain-projects/tree/master/baas-artifacts - along with a few other crypto coins / projects.

Microsoft's Azure 'cloud' platform is good, but in comparison to other cloud solutions it is perhaps rather expensive. It's geared more towards a cloud enterprise solution TBH.

However, It is possible to sign-up for a Microsoft's Azure 'free trial' with up to $200 worth of Azure credits (depending on your geographical eligibility etc.) - See : https://azure.microsoft.com/en-us/

As I recall, they require a valid credit card and Microsoft Live ID for sign-up.

The 'free trial' Azure credits are time restricted, although they will probably last for a good few days of mining Gapcoin on 2 x 8 core instances and 1 x 4 core High-Power-CPU instances, if the terms are still the same. So, one could just install a Gapcoin windows wallet on each instance and mine in the wallet.  Smiley

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May 25, 2016, 03:51:40 PM
 #1304


-

I don't know if price volatility, especially 'crashes' like happened today, discourage miners, but it would be good to give some stability and value to Gapcoin outside of its obvious utility.

If anybody has any ideas or projects, this would be a good coin to develop. It always baffles me why pumpers try to push absolutely useless coins 'to the moon', but nobody ever pumps better coins.

One important thing to straighten out might be the social media thing. Garbage coins use it to pump garbage, but social media can also be used to bring awareness of useful coins to the public. The gapcoin twitter account https://twitter.com/Gapcoin is stagnant at the moment. If anybody were interested in tweeting stuff like records as they are found, that would bring some publicity to crypto in general and also to gapcoin. Jonn9 probably has that twitter account, I don't know, but if somebody is interested in doing that then somebody who knows Jonn9 could probably forward that interest (I'm guessing.}

This coin is a fairly made, useful coin. It is better in almost every way than the vast majority of coins.

One of the best things about this coin is that it has never been promoted in a hype way. People notice that it belongs to the "useful algorithm" class of coins, like Primecoin, Riecoin, Gridcoin etc. and if they decide that they want to support that then they buy or mine the coin. Nobody has ever hawked the coin or started a sleazy social media campaign nor anything similar, and that should not change if somebody restarts the twitter account. (I am not a suitable person for that for many reasons, but have other ideas that may come to fruition).

Promoting Gapcoin to University Mathematics departments would be a good more forward perhaps.

Getting a couple of 'super computers' or IT labs on board would certainly help towards finding some news worthy prime gaps!

...

Foremost, Gapcoin really needs a new mining pool and getting listed on another exchange would be good.

A vote listing for cryptopia.co.nz is here: https://www.cryptopia.co.nz/Vote

I've contacted a number of pool operators recently to try building a new pool, although without success.

I might make a concerted effort to try and get a Gapcoin pool up and running myself soon, no guarantees though.
 

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June 04, 2016, 05:17:57 PM
 #1305

Is there a way to see the overall activity?

About 2 weeks ago the rate of record results on the Gapcoin page went up dramatically, and has stayed that way.  The overall number of Gapcoin records had been falling by about 100/month since January (that is, the number of gaps found were not enough to keep up with the amount of records broken by others), but since then it has been able to keep up and even gain a little.

I looked at the coinia stats page on the first post, and it doesn't seem right.  BitCoinFX reports one of his machines generates 15M pps.  That exceeds coinia's "networkprimeps" number for most of this year.  It's reporting a current value of about 22M pps, which implies there are only a couple machines running, which doesn't seem right.  It shows 500 new accounts every day, and one would think they might actually run something.

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June 04, 2016, 07:12:05 PM
 #1306

@YomKi

The 22M diff at http://gap.coinia.net/gap/blockexplorer.php is the current network difficulty, as in Console > getdifficulty

I'm also not aware of any published 'live' statistics for the network total primespersec - being estimated or otherwise.

I suppose that the slight overall difficulty increase is due to more people mining Gapcoin and also running at the higher shifts.


Moreover, the Gapcoin network is seeing increased participation from Technical / University Department IP space, including Germany, Slovakia, Czech Republic, USA, Russia and China. It is unclear if any of these nodes are actually mining Gapcoin or just simply collating data on Prime Gaps etc.,

Smiley

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June 04, 2016, 07:23:08 PM
 #1307

I am not sure if i remember correctly, but with 20 cores a month ago i had roughly 5-10% of the hashrate.
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June 04, 2016, 08:41:52 PM
 #1308

@YomKi

The 22M diff at http://gap.coinia.net/gap/blockexplorer.php is the current network difficulty, as in Console > getdifficulty

I'm also not aware of any published 'live' statistics for the network total primespersec - being estimated or otherwise.

I didn't mean the difficulty, but the primes per second.  http://gap.coinia.net/gap/stat.php under "networkprimesps" would seem to be a live statistic for network total primes per second.  It was in the hundreds of millions in early 2015, then fell to very little (sub 10M early this year).  It's up to about 22 million (unrelated to the difficulty which happens to be around 22.x).

Greek's number indicates 200-400 cores worth overall back in the low-result time frame, or (extremely roughly) around 50 full time computers.



On another, previous, topic of getting university support for gapcoin, I thought the answers here were interesting:

Could Bitcoin's mining be combined with actually useful work?

Why haven't bit-miners repurposed their Bitcoin mining operations to solve for “Real” and “Important”, unsolved mathematical mysteries?

Considering most answers are "no".  The questions are not quite the same (at least the answers assume the result must be a proof rather than understanding).
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June 05, 2016, 03:30:48 AM
 #1309

Is there a blockchain download for this anywhere?  I mined this when it first came out.  Saved the wallet but rebuilt the machine.  I have to sync from scratch.  If anyone could zip up a Windows blockchain I'll provide a place to upload to. At the rate it's syncing it could take a week. 

Thanks 
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June 05, 2016, 10:11:01 AM
Last edit: June 09, 2016, 02:16:00 PM by BitcoinFX
 #1310

Is there a blockchain download for this anywhere?  I mined this when it first came out.  Saved the wallet but rebuilt the machine.  I have to sync from scratch.  If anyone could zip up a Windows blockchain I'll provide a place to upload to. At the rate it's syncing it could take a week.  

Thanks  

Thought that the Gapcoin blockchain was listed / available at: http://cryptochainer.com - however it needs to be added on the website.

Requested here: https://bitcointalk.org/index.php?topic=1333062.msg15088359#msg15088359

EDIT: Gapcoin now added to cryptochainer.com - they also include a peers.dat

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June 09, 2016, 02:30:59 PM
 #1311

Thanks for that @no-ice-please

As above, cryptochainer.com has also added the Gapcoin blockchain for direct download.

...

Remember that mining for Gapcoin blocks (at the current difficulty) with your CPU is as easy as downloading the client wallet (fully syncing the blockchain) and then setting > setgenerate true in the Help > Console.  Smiley

Start mining for Gapcoin (in-wallet)
Code:
setgenerate true

or

Start mining for Gapcoin (in-wallet using just 2 CPU cores etc.) - http://www.cpuid.com/softwares/cpu-z.html
Code:
setgenerate true 2

Stop mining for Gapcoin (in-wallet)
Code:
setgenerate false

Remembering that the in-wallet CPU miner is not as efficient as other Gapcoin mining software.

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June 09, 2016, 04:23:40 PM
 #1312

Gapcoin blockchain is now available for download from CryptoChainer.com.  Enjoy.
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June 12, 2016, 05:49:10 PM
 #1313

Hello.

This is my thinking and knowing (worth what it's worth) on GAPCOIN currency.

Something is wrong and strange in Gapcoin mining.

The difficulty has increased a lot and quickly, and with a tendency to increase more.

The mining with CPU / GPU (resistant ASIC), and the current difficulty and to approach the day of reward decrease I do not see good thing for GAP.

In Exchange (Poloniex), some "mentally retarded" do everything for the currency increasingly worth less, which does not understand and is not intelligent.

Did someone cut the ASIC resistance? And the dev did wrong Huh? thing.

I do not think the normal 40 colors (64 bits) only make on average 500 Gap day? .

I liked to know the opinion of Gap community.

Note: translated text in translate.google.pt
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July 01, 2016, 08:54:10 AM
 #1314

The diff dropped to about 20.5 by the last Xmas. It was nice to mine for a few months until the coin got a pump in March. The diff moved slowly to 22. It dropped recently to 21.5 or something.
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July 02, 2016, 03:21:11 AM
 #1315

So did the developer leave?
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July 09, 2016, 02:09:02 PM
 #1316

tests/s should be more or less than pps?

Thanks
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July 11, 2016, 05:29:42 AM
 #1317

Code:
invalid application of 'sizeof' to incomplete type 'boost::STATIC_ASSERTION_FAILURE<false>
For compile in Ubuntu 16.04 with boost 1.58 need patch:
https://github.com/bitcoin/bitcoin/pull/6114/commits/824c011d165cc352088f8e238f66b829b0e654ed

QORA | 2ND GEN | NEW SOURCE CODE | QTz6fSV2VNc2wjwwsw57kwQzgQhmGw5idQ
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July 12, 2016, 04:54:38 PM
 #1318

Somewhat off topic, but this might be interesting for the prime gap crowd:

http://bit-player.org/2016/prime-after-prime

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July 15, 2016, 06:37:06 AM
 #1319

Chinese exchanges seem to like science cryptos like XPM, so that they might like GAP too, and it would be a good idea to contact some: like BTC38 or Jubi - see https://bitcointalk.org/index.php?topic=1419665.0

Would probably need a bounty for a chinese translation.



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July 15, 2016, 11:54:39 AM
 #1320

Chinese exchanges seem to like science cryptos like XPM, so that they might like GAP too, and it would be a good idea to contact some: like BTC38 or Jubi - see https://bitcointalk.org/index.php?topic=1419665.0

Would probably need a bounty for a chinese translation.

I said that half a year ago, but no luck. It seems we have no Chinese users simply.

https://bitcointalk.org/index.php?topic=822498.msg14033286#msg14033286

This ANN is also outdated. No working pool. No commits to Github for 1.5 years. If the dev was a bit more active, it could be great.
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