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Author Topic: [ANN][GAP] Gapcoin - Prime Gap Search - New Math Algo - CPU / GPU - Zero Premine  (Read 285041 times)
j0nn9
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June 27, 2015, 02:36:27 PM
 #1181

Trying the new miner and generating a new crt file.  Can you post an example command to mine after the ctr file is generated?  Do we still use --sieve-primes?  Is ctr-evolution used in the ctr generation and the mining command?

ctr-evolution and ctr-primes are only necessary for generating the ctr file.  --sieve-primes will still be used for mining.


Mining still works the same way as in the previous ctr-miner version:

Code:
./gapminer-cpu localhost -p 31397 -u <rpc-user> -x <rpc-password> --shift 1024 --crt my-ctr-file.txt --threads 4 --fermat-threads 1

Gapcoin - The largest, decentralized prime gap search
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June 28, 2015, 04:34:47 PM
 #1182

It will be a new pool ?
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June 28, 2015, 10:31:59 PM
 #1183

It will be a new pool ?

nscythe, same one that has all the cpu power?  If you're still mining on shift 25 you may mine faster on the higher shifts (400-600).

It's still solo mining but the second release of the chinese remainder theorem, this latest release let's you build custom crt files.
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June 29, 2015, 06:40:36 PM
 #1184

Soon I'll try to return pages on coinia.net

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June 29, 2015, 11:45:36 PM
 #1185

Soon I'll try to return pages on coinia.net

Thanks! That are great news!

Gapcoin - The largest, decentralized prime gap search
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June 30, 2015, 07:19:41 PM
 #1186

CTR GapMiner Update

New Feature: Creating custom ctr files

The ctr algorithm is divided into 2 parts. The first part,
is a simple greedy algorithm which ties to find offsets
for each involved prime, so that the desired number range
has at least prime candidates as possible.

The second part is an evolutionary algorithm, which tries to improve the
results form the greedy algorithm. Therefor the greedy algorithm
will be executed several times with slightly different parameters, to produce
ctrs which differs in quality, which than can be used by the evolutionary algorithm.

The output is a text file which can be used by gapminer as an input for ctr sieving.

Parameter description:

Code:
--calc-ctr          Indicates that we want to calculate a ctr file.

--ctr-strength      This is used to variate the computing time spend
                    within the greedy algorithm. Higher strength
                    can yield better results.

--ctr-primes        The number of primes to use in the ctr file. The more
                    primes the better the ctr result, but the shift
                    also increases. Minimum shift can be calculated as
                    the binary logarithm of the product of all primes:
                    log2(p1 * p2 * ... *pn).

--ctr-evolution     Whether to use the evolutionary algorithm or not.

--ctr-fixed         This number indicates the number of starting primes
                    which wound get touched by the evolutionary algorithm
                    the offsets for the primes 2,3,5,7,11... are mostly
                    perfect computed by the greedy algorithm, and changing
                    them only declines the result.

--ctr-ivs           The number of individuals used in the evolutionary algorithm.
                    More increases computing time but mostly also the
                    result quality.

--ctr-range         Percent deviation from the number of primes.
                    Useful if you don't want to look for a specific number
                    of primes.

--ctr-bits          The shift value you later use for sieving has to be greater
                    than log2(p1*p2*..*pn). With this flag you can fine tune a specific
                    shift by setting this to shift - log2(p1*p2*..*pn).

--ctr-merit         The target merit (while testing the ctr it seamed that
                    sieving for target-merit - 1 yields the best results)

--ctr-file          The target ctr output file. You can open this with a
                    text editor. Look for the n_candidates value, the smaller
                    it is the better the ctr file.


windows: https://github.com/gapcoin/GapMiner/releases/download/crt-rev5.1/windows.zip
md5: 50b506c6fdacbe36dd2d87e6f2c296d9

linux: https://github.com/gapcoin/GapMiner/releases/download/crt-rev5.1/linux.zip
md5: 88f0a3975df728566d3500b69475a78a

source code: https://github.com/gapcoin/GapMiner/

I'm sorry to inform you, that I made mistake within the example commands.
At the --ctr-bits flag you have to subtract 256 from the given value.

The links above were updated.
Any already generated ctr files can still be used, but they are targeting a 0.25 (130 primes) till 4.7 (14 primes) times greater merit.

Gapcoin - The largest, decentralized prime gap search
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June 30, 2015, 08:52:04 PM
 #1187

CTR GapMiner Update

New Feature: Creating custom ctr files

The ctr algorithm is divided into 2 parts. The first part,
is a simple greedy algorithm which ties to find offsets
for each involved prime, so that the desired number range
has at least prime candidates as possible.

The second part is an evolutionary algorithm, which tries to improve the
results form the greedy algorithm. Therefor the greedy algorithm
will be executed several times with slightly different parameters, to produce
ctrs which differs in quality, which than can be used by the evolutionary algorithm.

The output is a text file which can be used by gapminer as an input for ctr sieving.

Parameter description:

Code:
--calc-ctr          Indicates that we want to calculate a ctr file.

--ctr-strength      This is used to variate the computing time spend
                    within the greedy algorithm. Higher strength
                    can yield better results.

--ctr-primes        The number of primes to use in the ctr file. The more
                    primes the better the ctr result, but the shift
                    also increases. Minimum shift can be calculated as
                    the binary logarithm of the product of all primes:
                    log2(p1 * p2 * ... *pn).

--ctr-evolution     Whether to use the evolutionary algorithm or not.

--ctr-fixed         This number indicates the number of starting primes
                    which wound get touched by the evolutionary algorithm
                    the offsets for the primes 2,3,5,7,11... are mostly
                    perfect computed by the greedy algorithm, and changing
                    them only declines the result.

--ctr-ivs           The number of individuals used in the evolutionary algorithm.
                    More increases computing time but mostly also the
                    result quality.

--ctr-range         Percent deviation from the number of primes.
                    Useful if you don't want to look for a specific number
                    of primes.

--ctr-bits          The shift value you later use for sieving has to be greater
                    than log2(p1*p2*..*pn). With this flag you can fine tune a specific
                    shift by setting this to shift - log2(p1*p2*..*pn).

--ctr-merit         The target merit (while testing the ctr it seamed that
                    sieving for target-merit - 1 yields the best results)

--ctr-file          The target ctr output file. You can open this with a
                    text editor. Look for the n_candidates value, the smaller
                    it is the better the ctr file.


windows: https://github.com/gapcoin/GapMiner/releases/download/crt-rev5.1/windows.zip
md5: 50b506c6fdacbe36dd2d87e6f2c296d9

linux: https://github.com/gapcoin/GapMiner/releases/download/crt-rev5.1/linux.zip
md5: 88f0a3975df728566d3500b69475a78a

source code: https://github.com/gapcoin/GapMiner/

I'm sorry to inform you, that I made mistake within the example commands.
At the --ctr-bits flag you have to subtract 256 from the given value.

The links above were updated.
Any already generated ctr files can still be used, but they are targeting a 0.25 (130 primes) till 4.7 (14 primes) times greater merit.

I was wondering why a shift 1024 was taking multiple days and counting Smiley  though I had set the ivs to 10000 and the target shift to 20.
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July 02, 2015, 03:17:06 AM
 #1188

This should be decent, took almost 2 days to generate:

|== ChineseSet ==|
n_primes:     62
size:         10242
n_candidates: 765
offset:       1146441612406461563657892639195504712824084356280432767521872923137076875201036 461817017569202830059679582232394065759000
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July 02, 2015, 07:19:21 PM
 #1189

I'm not sure the table for --ctr-bits is fixed.

Example:
If you want to generate a file for shift 384

ctr-primes = 58


ctr-bits = shift - log2(p1*p2*..*pn) - 256
...
ctr-bits = 384 - log2(58#) - 256
...
ctr-bits = 384 -64 - 256 = 64

Yet the table shows the ctr-bits set to 16 for primes=58.   
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July 07, 2015, 08:51:04 PM
 #1190

I'm not sure the table for --ctr-bits is fixed.

Example:
If you want to generate a file for shift 384

ctr-primes = 58


ctr-bits = shift - log2(p1*p2*..*pn) - 256
...
ctr-bits = 384 - log2(58#) - 256
...
ctr-bits = 384 -64 - 256 = 64

Yet the table shows the ctr-bits set to 16 for primes=58.   


It's:

ctr-bits = shift - log2(p1*p2*..*pn)
...
ctr-bits = 384 - log2(58#)
...
ctr-bits = 384 - 368 = 16


The ctr-bits in the original file were 256 bits to high.

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July 08, 2015, 04:04:55 PM
Last edit: May 17, 2016, 06:49:57 PM by BitcoinFX
 #1191

Good work with the latest CTR GapMiner (CPU)

Initial results for:

Sandy Bridge-E - Intel Core i7 3930K CPU @ 3.20 GHz (Factory Overclocked to 4.1 GHz on all cores) with liquid cooling. 6 Cores and 12 Threads.

Just running with 6 threads atm.

--shift 896 --crt crt/crt-22m-896s.txt --threads 6 --fermat-threads 1 --sieve-primes 500000

Seems to be the most 'optimal' / highest pps --shift out of the full range I tested.

pps: 2100000 /  (lowest)

pps: 3500000 / (avg. approx.)

pps: 5100000 / (high)

Have yet to test with full optimizations etc.,

Noticed that --shift multiples of 64 always seemed to yield a higher pps average on 64-bit over --shift multiples of 32 ?

EDIT: 'tested' optimizations:

Code:
--shift 512 --crt crt/crt-22m-512s.txt --threads 8 --fermat-threads 7 --sieve-primes 10000

pps: 15,000,000 (avg. approx.)
 

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July 08, 2015, 08:23:00 PM
Last edit: July 09, 2015, 07:31:22 PM by BitcoinFX
 #1192

Submitted a coin voting request at cryptopia exchange: https://www.cryptopia.co.nz/Home/Voting for Gapcoin.

EDIT: It is now possible to vote for Gapcoin. N.B. Listing is currently "Awaiting moderator review..." So, we can't vote for Gapcoin just yet.

...

Perhaps we could try to generate some additional relevant interest in Gapcoin via the official twitter: https://twitter.com/Gapcoin

How about following some University "Department of Mathematics" etc., as well as their followers ?

Cheers!

"Bitcoin OG" Bored/Board of making others wealthy! | 1JXFXUBGs2ZtEDAQMdZ3tkCKo38nT2XSEp | Bitcoin is BTC | CSW is NOT Satoshi Nakamoto | I Mine BTC, LTC, ZEC, XMR and GAP | Support my BTC on Tor addnodes Project | Media enquiries : Wu Ming | Enjoy The Money Machine | "You cannot compete with Open Source" and "Cryptography != Banana"
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July 08, 2015, 09:21:27 PM
 #1193

Gapcoin is better than most shitcoins and the cap is just 11 BTC. The coin does useful work, has no pre/instamine, has an active dev, etc. Fuck it. This is ridiculous. What's wrong with this world? This one is extremely undervalued. Buy while you can.

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July 09, 2015, 06:37:05 PM
 #1194

there is a pool for gapcoin?
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July 09, 2015, 07:25:06 PM
 #1195

there is a pool for gapcoin?

No. Not at present. You can try solo mining though.

gapcoin.conf

Code:
listen=1
server=1
rpcuser=<rpc-user>
rpcpassword=<rpc-password>
rpcallowip=127.0.0.1
rpcport=31397

gap-miner cpu:

Code:
-o http://127.0.0.1 -p 31397 -u <rpc-user> -x <rpc-password> --threads <n-threads>


"Bitcoin OG" Bored/Board of making others wealthy! | 1JXFXUBGs2ZtEDAQMdZ3tkCKo38nT2XSEp | Bitcoin is BTC | CSW is NOT Satoshi Nakamoto | I Mine BTC, LTC, ZEC, XMR and GAP | Support my BTC on Tor addnodes Project | Media enquiries : Wu Ming | Enjoy The Money Machine | "You cannot compete with Open Source" and "Cryptography != Banana"
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July 10, 2015, 06:39:02 PM
 #1196

there is a pool for gapcoin?

No. Not at present. You can try solo mining though.

gapcoin.conf

Code:
listen=1
server=1
rpcuser=<rpc-user>
rpcpassword=<rpc-password>
rpcallowip=127.0.0.1
rpcport=31397

gap-miner cpu:

Code:
-o http://127.0.0.1 -p 31397 -u <rpc-user> -x <rpc-password> --threads <n-threads>



thanks!
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September 04, 2015, 12:48:37 PM
 #1197

Market cap only 5 bitcoin.
Yes, this is let say "half empty glasses", but we can see "the second half full glasses" - coin is not overpriced and easy to get in, it may be on bottom - we will see, got unique algo (asci resistance), only 2,15mil total coins atm, no ICO/IPO, a few guys care about this coin and is still alive after "crashing" year for many altcoins looking back.
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September 16, 2015, 12:30:11 PM
 #1198

Found a brand new Gapcoin faucet over at cryptospout;

- https://cryptospout.com/deluge/hourly_gapcoin_deluge.html

- https://cryptospout.com/faucet/daily_gapcoin_faucet.html

- https://cryptospout.com/deluge/hourly_gapcoin_deluge.html

Might need to be loaded with some more Gapcoin, however this website has a whole bunch of reliable faucets.

"Bitcoin OG" Bored/Board of making others wealthy! | 1JXFXUBGs2ZtEDAQMdZ3tkCKo38nT2XSEp | Bitcoin is BTC | CSW is NOT Satoshi Nakamoto | I Mine BTC, LTC, ZEC, XMR and GAP | Support my BTC on Tor addnodes Project | Media enquiries : Wu Ming | Enjoy The Money Machine | "You cannot compete with Open Source" and "Cryptography != Banana"
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September 18, 2015, 02:11:49 PM
Last edit: September 18, 2015, 07:43:08 PM by HarryPorter
 #1199


... only 2,15mil total coins atm, no ICO/IPO, ...

A lot of upside potential if the dev is still working but he has not logged in since July. I don't understand exactly what the coin does but similar coins like Riecoin have started to move up. Website and so on work but without a dev it is a risky shot.

True, however in whole crypto it is not easy to find something that is not a risky. That, too, that some "good old" coins begin to bounce back. Sometimes we need months or a year to get profits.
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October 21, 2015, 08:53:08 PM
 #1200

Happy Birthday Gapcoin


One year has gone by and we found more than 1500 new first-known occurrence prime gap records!!

I want to thank all of you for your great support,
without your engagement this wouldn't have been possible


Gapcoin - The largest, decentralized prime gap search
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