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Author Topic: [ANN][GAP] Gapcoin - Prime Gap Search - New Math Algo - CPU / GPU - Zero Premine  (Read 285016 times)
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April 17, 2016, 11:59:19 PM
 #1281

Guys, do you have a problem with wallet connections? I got this since yesterday, only 5-6 connections. Before i had about 25-30. I got a few other wallets on my PC and it's ok.
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April 18, 2016, 02:29:57 AM
Last edit: April 18, 2016, 11:52:48 AM by qqqq
 #1282

Guys, do you have a problem with wallet connections? I got this since yesterday, only 5-6 connections. Before i had about 25-30. I got a few other wallets on my PC and it's ok.

25-30?

Even bitcoin doesn't need that.

Or are you asking a mining question?

Yeap. I'm a solo guy) Actually it's ok with even 5 connect but it was really much more, and i don't understand what happened. Primecoin has ~60 connection like it always was.
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April 18, 2016, 12:52:24 PM
 #1283

Guys, do you have a problem with wallet connections? I got this since yesterday, only 5-6 connections. Before i had about 25-30. I got a few other wallets on my PC and it's ok.

25-30?

Even bitcoin doesn't need that.

Or are you asking a mining question?

Yeap. I'm a solo guy) Actually it's ok with even 5 connect but it was really much more, and i don't understand what happened. Primecoin has ~60 connection like it always was.

It solo mines okay with 5 connections. Gapcoin is much smaller then Primecoin, so don't expect very many connections.
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April 18, 2016, 02:46:33 PM
 #1284

A few days ago for a long time i got ~20 and more connections. Maybe somebody got the same issue?  Of course i know that 5 connection is ok (actually so so) or you think i'm newbie ?

Now i got 7 conn. So my guess is that some miners abandoned GAP who came when pump started.
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April 19, 2016, 08:20:27 AM
 #1285

how Gapcoin reward 1x7950 (280x,7970) on 24h ?

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April 19, 2016, 03:12:47 PM
Last edit: April 20, 2016, 07:35:58 AM by qqqq
 #1286

how Gapcoin reward 1x7950 (280x,7970) on 24h ?
Not too much relative CPU mine. This GPU's much better for ETH or even XPM.

By the way, does anyone know the formula of Gapcoin reward? Cause i never see any calc.
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April 22, 2016, 07:01:08 AM
 #1287

Is this OK?

[2016-04-22 08:58:30] pps: 7146858 / 6681342 tests/s 2383521 / 1229579
                      gaps/s 185 / 189  gaplist 5314  block [8.005 %]
[2016-04-22 08:58:43] pps: 6296339 / 6681977 tests/s 2338851 / 1247591
                      gaps/s 181 / 188  gaplist 6428  block [8.134 %]
[2016-04-22 08:58:55] pps: 6011644 / 6677734 tests/s 2521668 / 1266610
                      gaps/s 183 / 188  gaplist 7491  block [8.266 %]
[2016-04-22 08:59:08] pps: 6105337 / 6682112 tests/s 2491559 / 1285141
                      gaps/s 185 / 188  gaplist 8489  block [8.401 %]
[2016-04-22 08:59:20] pps: 7638706 / 6690665 tests/s 2542562 / 1304172
                      gaps/s 177 / 188  gaplist 9475  block [8.537 %]
[2016-04-22 08:59:32] pps: 6429267 / 6687915 tests/s 2814107 / 1323109
                      gaps/s 219 / 188  gaplist 10373  block [8.669 %]
[2016-04-22 08:59:44] pps: 6516690 / 6680416 tests/s 2787545 / 1344174
                      gaps/s 190 / 188  gaplist 11307  block [8.789 %]
[2016-04-22 08:59:47] Got new target: 21.7595590 @ 21.7595590
[2016-04-22 08:59:56] pps: 6270124 / 6673667 tests/s 2787411 / 1362386
                      gaps/s 190 / 188  gaplist 826  block [8.979 %]
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April 23, 2016, 03:45:57 PM
 #1288

Is this OK?

[2016-04-22 08:58:30] pps: 7146858 / 6681342 tests/s 2383521 / 1229579
                      gaps/s 185 / 189  gaplist 5314  block [8.005 %]
[2016-04-22 08:58:43] pps: 6296339 / 6681977 tests/s 2338851 / 1247591
                      gaps/s 181 / 188  gaplist 6428  block [8.134 %]
[2016-04-22 08:58:55] pps: 6011644 / 6677734 tests/s 2521668 / 1266610
                      gaps/s 183 / 188  gaplist 7491  block [8.266 %]
[2016-04-22 08:59:08] pps: 6105337 / 6682112 tests/s 2491559 / 1285141
                      gaps/s 185 / 188  gaplist 8489  block [8.401 %]
[2016-04-22 08:59:20] pps: 7638706 / 6690665 tests/s 2542562 / 1304172
                      gaps/s 177 / 188  gaplist 9475  block [8.537 %]
[2016-04-22 08:59:32] pps: 6429267 / 6687915 tests/s 2814107 / 1323109
                      gaps/s 219 / 188  gaplist 10373  block [8.669 %]
[2016-04-22 08:59:44] pps: 6516690 / 6680416 tests/s 2787545 / 1344174
                      gaps/s 190 / 188  gaplist 11307  block [8.789 %]
[2016-04-22 08:59:47] Got new target: 21.7595590 @ 21.7595590
[2016-04-22 08:59:56] pps: 6270124 / 6673667 tests/s 2787411 / 1362386
                      gaps/s 190 / 188  gaplist 826  block [8.979 %]


gpu,cpu ? one ? .. you .bat ?

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April 24, 2016, 03:22:59 PM
 #1289

Is this OK?

[2016-04-22 08:58:30] pps: 7146858 / 6681342 tests/s 2383521 / 1229579
                      gaps/s 185 / 189  gaplist 5314  block [8.005 %]
[2016-04-22 08:58:43] pps: 6296339 / 6681977 tests/s 2338851 / 1247591
                      gaps/s 181 / 188  gaplist 6428  block [8.134 %]
[2016-04-22 08:58:55] pps: 6011644 / 6677734 tests/s 2521668 / 1266610
                      gaps/s 183 / 188  gaplist 7491  block [8.266 %]
[2016-04-22 08:59:08] pps: 6105337 / 6682112 tests/s 2491559 / 1285141
                      gaps/s 185 / 188  gaplist 8489  block [8.401 %]
[2016-04-22 08:59:20] pps: 7638706 / 6690665 tests/s 2542562 / 1304172
                      gaps/s 177 / 188  gaplist 9475  block [8.537 %]
[2016-04-22 08:59:32] pps: 6429267 / 6687915 tests/s 2814107 / 1323109
                      gaps/s 219 / 188  gaplist 10373  block [8.669 %]
[2016-04-22 08:59:44] pps: 6516690 / 6680416 tests/s 2787545 / 1344174
                      gaps/s 190 / 188  gaplist 11307  block [8.789 %]
[2016-04-22 08:59:47] Got new target: 21.7595590 @ 21.7595590
[2016-04-22 08:59:56] pps: 6270124 / 6673667 tests/s 2787411 / 1362386
                      gaps/s 190 / 188  gaplist 826  block [8.979 %]


gpu,cpu ? one ? .. you .bat ?

cpu 12 threads 6 cores. --shift 504 --crt crt/crt-22m-512s.txt --threads 10 --fermat-threads 7 --sieve-primes 300000
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April 28, 2016, 06:18:20 AM
 #1290

how to setup solomining ?
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April 28, 2016, 11:20:15 AM
 #1291

how to setup solomining ?

What OS? How many computers? CPU or GPU?
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April 29, 2016, 03:21:22 PM
Last edit: April 30, 2016, 06:19:21 AM by bonosurgut
 #1292

how to setup solomining ?

What OS? How many computers? CPU or GPU?

i have 4 servers, will mine on CPU only, cores from 4 to 10. OS server 2003 x64 , Server 2008 x64.
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May 06, 2016, 03:56:32 PM
Last edit: May 06, 2016, 05:30:19 PM by ph4nt0m
 #1293

Here we go up again... and down.
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May 17, 2016, 06:45:45 PM
 #1294

Is this OK?

[2016-04-22 08:58:30] pps: 7146858 / 6681342 tests/s 2383521 / 1229579
                      gaps/s 185 / 189  gaplist 5314  block [8.005 %]
[2016-04-22 08:58:43] pps: 6296339 / 6681977 tests/s 2338851 / 1247591
                      gaps/s 181 / 188  gaplist 6428  block [8.134 %]
[2016-04-22 08:58:55] pps: 6011644 / 6677734 tests/s 2521668 / 1266610
                      gaps/s 183 / 188  gaplist 7491  block [8.266 %]
[2016-04-22 08:59:08] pps: 6105337 / 6682112 tests/s 2491559 / 1285141
                      gaps/s 185 / 188  gaplist 8489  block [8.401 %]
[2016-04-22 08:59:20] pps: 7638706 / 6690665 tests/s 2542562 / 1304172
                      gaps/s 177 / 188  gaplist 9475  block [8.537 %]
[2016-04-22 08:59:32] pps: 6429267 / 6687915 tests/s 2814107 / 1323109
                      gaps/s 219 / 188  gaplist 10373  block [8.669 %]
[2016-04-22 08:59:44] pps: 6516690 / 6680416 tests/s 2787545 / 1344174
                      gaps/s 190 / 188  gaplist 11307  block [8.789 %]
[2016-04-22 08:59:47] Got new target: 21.7595590 @ 21.7595590
[2016-04-22 08:59:56] pps: 6270124 / 6673667 tests/s 2787411 / 1362386
                      gaps/s 190 / 188  gaplist 826  block [8.979 %]


gpu,cpu ? one ? .. you .bat ?

cpu 12 threads 6 cores. --shift 504 --crt crt/crt-22m-512s.txt --threads 10 --fermat-threads 7 --sieve-primes 300000

I eventually got around to testing more optimizations for my own Gapcoin CPU mining set-up from this post:

- https://bitcointalk.org/index.php?topic=822498.msg11823571#msg11823571

Running with 8 threads is 'optimal' on my Sandy Bridge-E - Intel Core i7 3930K CPU @ 3.20 GHz. Also 6 Cores and 12 Threads. Its good advice to keep some cores free for networking and to not adversely effect GPU mining performance etc.,  

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

Much as per @pdazzl posted here:

- https://bitcointalk.org/index.php?topic=822498.msg11420226#msg11420226

Will report / push around 15,000,000 pps

--sieve-primes 10000 (or 20000) seems optimal.

--shift 896 --crt crt/crt-22m-896s.txt  is the highest shift I can set before seeing a reduction (variance) in total pps.

--shift 896 --crt crt/crt-22m-896s.txt reports less gaps/s than --shift 512 --crt crt/crt-22m-512s.txt - however, I'm fairly certain that using the higher shift does find more blocks, although that could also just be variance.

Recommended min. physical system RAM (for CPU CRT mining) is probably around 8 GB with at least 4 GB free. The PC I'm using has 16 GB RAM.

 

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May 18, 2016, 10:15:46 AM
 #1295

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?
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May 18, 2016, 02:52:51 PM
 #1296

Ignoring the coin part of Gapcoin and just looking at the gap records, the shift determines the size of the primes examined.  Shift 25 is finding gaps in the 5k-6k range, which Gapcoin has done a lot of work in.  Shift 512 in the 12k-17k range.  Shift 896 18k-24k.  Shift 1024 20k-28k.  Ranges very approximate.

The higher gap lengths have lower merits, making records easier to find, but take longer to calculate and find.  Other shift amounts, especially larger than 25, are more likely to find new records since the threshold is lower.  Presumably one doesn't want to do this at the expense of coin return however (there are tools that are much better than Gapcoin at finding records, but they don't have coins).
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May 18, 2016, 04:15:57 PM
 #1297

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.
 

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May 18, 2016, 04:25:18 PM
 #1298

Ignoring the coin part of Gapcoin and just looking at the gap records, the shift determines the size of the primes examined.  Shift 25 is finding gaps in the 5k-6k range, which Gapcoin has done a lot of work in.  Shift 512 in the 12k-17k range.  Shift 896 18k-24k.  Shift 1024 20k-28k.  Ranges very approximate.

The higher gap lengths have lower merits, making records easier to find, but take longer to calculate and find.  Other shift amounts, especially larger than 25, are more likely to find new records since the threshold is lower.  Presumably one doesn't want to do this at the expense of coin return however (there are tools that are much better than Gapcoin at finding records, but they don't have coins).

Indeed. The Shift 512 is less likey to find new records over the higher shifts.

In terms of mining return, considering the current network difficulty, the setting is perhaps only a happy medium.   Smiley


...

If we want Gapcoin to break the records we are going to need a couple of pools and a whole bunch of solo miners running at the Highest Shift ranges.

"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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May 18, 2016, 04:37:31 PM
 #1299

Ignoring the coin part of Gapcoin and just looking at the gap records, the shift determines the size of the primes examined.  Shift 25 is finding gaps in the 5k-6k range, which Gapcoin has done a lot of work in.  Shift 512 in the 12k-17k range.  Shift 896 18k-24k.  Shift 1024 20k-28k.  Ranges very approximate.

The higher gap lengths have lower merits, making records easier to find, but take longer to calculate and find.  Other shift amounts, especially larger than 25, are more likely to find new records since the threshold is lower.  Presumably one doesn't want to do this at the expense of coin return however (there are tools that are much better than Gapcoin at finding records, but they don't have coins).

Maybe these are dumb questions, but I'm sure other people are wondering too

1) Wouldn't higher gap lengths have higher merits? Or is there some feature of gaps that are more isolated that makes them lower merit? Are more isolated gaps more predictable to find?

2) If there are tools much better than the current algorithm, what would be the reason for not converting Gapcoin to use the more efficient algorithm?


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May 19, 2016, 05:49:55 AM
 #1300

1) Wouldn't higher gap lengths have higher merits? Or is there some feature of gaps that are more isolated that makes them lower merit? Are more isolated gaps more predictable to find?
If they were maximal gaps, yes.  But if one looks at current records, they drop in average merit as the gap size increases.

This is almost certainly an artifact of the time taken per test.  It takes much longer to find gaps at the larger sizes, hence we can run many more tests at small sizes given the same processing time, so it's more likely we find a large merit at the smaller sizes.

Gapcoin ran for a long time with shift 25 and increased the average merit quite a bit in the 5k-7k range.  So it finds fewer records in that area now because the threshold is higher.  On the other hand, that would still seem to be a good choice if looking for very large merits (34+).  It depends what your goal is.  My point was mostly that spreading out the shift values would result in more even coverage leading to more records.

Quote
2) If there are tools much better than the current algorithm, what would be the reason for not converting Gapcoin to use the more efficient algorithm?
Probably because very few people actually do the coding, and most have no incentive.  There are some arguable distribution benefits of the random selections rather than traditional ones, and it does simplify things for the project.  It wouldn't surprise me if the developers had other reasons.

The non-CRT algorithm is like throwing darts at a target while blindfolded and being spun around.  It's nice that you throw quickly, but most of your darts are hitting everything in the room but the wall with the target.

The CRT algorithm does a better job of throwing only when we think we're pointing toward the target wall.

The traditional method is not using a blindfold and aiming at the target.  Measured in speed of throws (primes per second) it is much slower, but each prime is far more likely to find a gap.  I'm basing this on seeing a single computer in the shift 512 range generating 10x more records/day than Gapcoin's overall results.  There are lots of programming differences as well, but I think the largest difference is the search process itself.

In theory, with Gapcoin's p = sha256(Blockheader) * 2^shift + adder (adder < 2^shift), one would select shift and adder such that they come out to the prime found using sieving around something like 1234567*193#/210.  I don't have any idea if that would be possible for a miner.  It might be possible but result in fewer reported blocks (even if the average merits are higher) so be worth less over time.
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