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Topic: [ANN][GAP] Gapcoin - Prime Gap Search - New Math Algo - CPU / GPU - Zero Premine - page 102. (Read 287695 times)

hero member
Activity: 938
Merit: 1000
Oh total network hash > 60mil PPS ?
Good luck selling GAP less than 100k, dumpers Wink
full member
Activity: 177
Merit: 154
doesn't proof of work verification necessary involve testing all numbers in the gap? Even using a sieve, wouldn't it become too slow?

Hey Gatra,

yes, proof of work verification involves testing all numbers in the gap.

It is a simple gmp call:

Code:
130   /* start has to be a prime */                                                 
131   if (!mpz_probab_prime_p(mpz_start, 25)) {                                     
132                                                                                 
133     mpz_clear(mpz_start);                                                       
134     return false;                                                               
135   }                                                                             
136                                                                                 
137   mpz_init(mpz_end);                                                           
138   mpz_nextprime(mpz_end, mpz_start);

The time for one verification is currently about 0.008 seconds (on a Intel i5-2500K)

If merit is about gap size/log(p), but max gap size is O(log^2(p)), then max merit is O(log(p)). So in order to get more merit, you'll eventually need larger primes, otherwise you'll have an upper bound for the merit! How do you handle this?

This is no problem, you can control the prime bit size with the shift field within the block header.
The largest prime can theoretically have a bit size of 256 + 2^16
Gapcoin also has a (compile time) opt-in restriction for the max allowed shift amount.
The main nodes currently only allows shifts up to 512.


Best regards, j0nn9
legendary
Activity: 1792
Merit: 1010
another gap block has arrived..

Credit: 22.xxxxxx GAP (matures in xxx more blocks)

thanks goes to you @dcct, dcct increased my block count Today

as I wrote this post another GAO block popped in!

How many instances do you use?

let's not tell but let's just say process it is wonderfully random, nature of primary number distribution is perfect.... a perfect organism (a primary number)
sr. member
Activity: 280
Merit: 250
another gap block has arrived..

Credit: 22.xxxxxx GAP (matures in xxx more blocks)

thanks goes to you @dcct, dcct increased my block count Today

as I wrote this post another GAO block popped in!

How many instances do you use?
legendary
Activity: 1792
Merit: 1010
another gap block has arrived..

Credit: 22.xxxxxx GAP (matures in xxx more blocks)

thanks goes to you @dcct, dcct increased my block count Today

as I wrote this post another GAP block popped in! (same merit, 22.nnn GAP)
sr. member
Activity: 280
Merit: 250
Hi!

A couple of questions: doesn't proof of work verification necessary involve testing all numbers in the gap? Even using a sieve, wouldn't it become too slow?
If merit is about gap size/log(p), but max gap size is O(log^2(p)), then max merit is O(log(p)). So in order to get more merit, you'll eventually need larger primes, otherwise you'll have an upper bound for the merit! How do you handle this?
I'm really interested in seeing how would this work.

Best regards,
Gatra


Verification is quite fast. Even a 7k gap is verified within seconds.
With O(log(p)) the max. merit is already above 256, with a larger shift difficulty can raise further. I don't see any limit here.

Quote
If expected average merit and max merit depend on the size of the primes, wouldn't I get an advantage by mining a pool using smaller primes? (restricting myself to smaller "shifts") Smaller primes mean faster computations, so more chances of getting a share, but at the expense of less changes of getting an actual block!

Its a bit of a tradeoff here. Larger shifts allow for larger, more efficient sieves, while lower ones speed up the fermat tests. I figured out the optimum is somewhere between 20 (the default value) and 26. Its only a minor improvement anyway.
hero member
Activity: 1050
Merit: 501

start working on GPU miner (Open CL) Routines here is what is needed and fast: to combine gapcoin POW and Open CL (best would be with NVIDIA routines)

If it goes so, I'd have to buy Nvidia gpu, but anyway it's a good idea!
member
Activity: 69
Merit: 10
whats up with the pool @Nonce ? i keep getting Stales

and this msg: curl_easy_perform()failed: time out was reached



Yes the pool is a bit overloaded for the rpc miner, we are working on a stratum server and hope to have it ready in a couple of  days.

We will be raising the pool difficulty shortly to reduce the server load.

Note: everyone's hashrate will show lower for now until we have a chance to fix the stats. (Not that they are that accurate anyway)

ok thanks... seems ok at the moment. even tho the volume of workers is even higher than earlier.
legendary
Activity: 1792
Merit: 1010
Another thing to consider:

If expected average merit and max merit depend on the size of the primes, wouldn't I get an advantage by mining a pool using smaller primes? (restricting myself to smaller "shifts") Smaller primes mean faster computations, so more chances of getting a share, but at the expense of less changes of getting an actual block!

If this is true, then pools would have to someway incentivize larger "shifts".

pool @Gatra simply could not handle RPC requests (changing now to stratum) also their hardware spec is not up to par, overall )and many said that) problem is so important we need more pools. I don't think artificial adjustments as to size of primes and shift in the reward calculation will be necessary if there is more than one pool, and even with one pool look at the price of GAP.. it is more than great and that given how purposefully or not people convert crypto to FIAT.. no idea why but it ain't me

ps. not convert to FIAT but convert to BTC.. because many hope that BTC to be dominant force. in years/decades to come. (I don't think it will, because it will focus too narrow but many do)

but here is where I stop

someone should elaborate on @Gatra (creator of Riecoin) more intricate questions, it is phenomenal he is looking at this development (in gap)
hero member
Activity: 583
Merit: 505
CTO @ Flixxo, Riecoin dev
Another thing to consider:

If expected average merit and max merit depend on the size of the primes, wouldn't I get an advantage by mining a pool using smaller primes? (restricting myself to smaller "shifts") Smaller primes mean faster computations, so more chances of getting a share, but at the expense of less changes of getting an actual block!

If this is true, then pools would have to someway incentivize larger "shifts".
hero member
Activity: 583
Merit: 505
CTO @ Flixxo, Riecoin dev
Hi!

A couple of questions: doesn't proof of work verification necessary involve testing all numbers in the gap? Even using a sieve, wouldn't it become too slow?
If merit is about gap size/log(p), but max gap size is O(log^2(p)), then max merit is O(log(p)). So in order to get more merit, you'll eventually need larger primes, otherwise you'll have an upper bound for the merit! How do you handle this?
I'm really interested in seeing how would this work.

Best regards,
Gatra
legendary
Activity: 1792
Merit: 1010
block arrived.. on approximately 3 x 117K PPS a block every 6 hours.. but I feel I am running out of time + expensive

you people have something very cool on your hands.. care for it

start working on GPU miner (Open CL) Routines here is what is needed and fast: to combine gapcoin POW and Open CL (best would be with NVIDIA routines)

Hehe. I found one block today, with core i7-3770k-4.2GHz -35000 PPS  Smiley
But it was first block after 3.5 days  Sad

feel you should rethink your approach, although let me tell you that a block at a given difficulty level will yield you n-blocks at the current level (price wise)

here why I think this is coin is of much higher value than either XPM (primecoin) or BTC (bitcoin) if the difficulty level goes beyond 30 value of mining will exceed financial reward

my worry is that a developer(s) will hoard GPU mining software for GAP but difficulty of the problem (prime gap finding) is so high that they will only get so far and there will be in English "stop gap" that is no matter what computing power it wont yield reward desired

as we speak another block has arrived.. not turning off AWS as yet...

22.xxxxxxxx GAP (matures in xxx more blocks)
full member
Activity: 134
Merit: 100
block arrived.. on approximately 3 x 117K PPS a block every 6 hours.. but I feel I am running out of time + expensive

you people have something very cool on your hands.. care for it

start working on GPU miner (Open CL) Routines here is what is needed and fast: to combine gapcoin POW and Open CL (best would be with NVIDIA routines)

Hehe. I found one block today, with core i7-3770k-4.2GHz -35000 PPS  Smiley
But it was first block after 3.5 days  Sad
legendary
Activity: 1792
Merit: 1010
block arrived.. on approximately 3 x 117K PPS a block every 6 hours.. but I feel I am running out of time + expensive

you people have something very cool on your hands.. care for it

start working on GPU miner (Open CL) Routines here is what is needed and fast: to combine gapcoin POW and Open CL (best would be with NVIDIA routines)
legendary
Activity: 3164
Merit: 1003
is that a gpu miner?

What makes  you think its a GPU miner ?? Stop the FUD.
Stop your fud on stopping the fud.
ps i know there are some gpu mining this and thats no fud.
you have to have a doctorate in computers and C++ and it can be done.

You need a doctorate, eh ? Get lost stupid.
Then why didn't you do it?  Grin
member
Activity: 68
Merit: 10
Records about to be broken, miners not dumping, competent dev... Bright future ahead for GAP.
sr. member
Activity: 464
Merit: 252
hero member
Activity: 938
Merit: 1000
New merit record!

http://coinia.net/gapcoin/blockexplorer.php?q=9ba300fb1ccee419d6c99c9a7b1f3434f5c09124a66dee9d2f1274c5115b2eb4

merit: 32.92211489
gap length: 6396
start prime: 2362114383441832500322011387943037977164194150997773091406607778787608479543714 567191
end prime: 2362114383441832500322011387943037977164194150997773091406607778787608479543714 573587

Very nice! High merits are coming faster than i thought!

Lets send some emails to major bitcoin/altcoin press sites that we are about to break some high records! Gapcoin helps spreading awareness of what the bitcoin protocol can do! Anyone have a email list?



Congrat dcct.
My 29.23 Merit can't compare with yours Wink
+1 agree with you, GreekBitcoin.
legendary
Activity: 1428
Merit: 1001
getmonero.org
New merit record!

http://coinia.net/gapcoin/blockexplorer.php?q=9ba300fb1ccee419d6c99c9a7b1f3434f5c09124a66dee9d2f1274c5115b2eb4

merit: 32.92211489
gap length: 6396
start prime: 2362114383441832500322011387943037977164194150997773091406607778787608479543714 567191
end prime: 2362114383441832500322011387943037977164194150997773091406607778787608479543714 573587

Very nice! High merits are coming faster than i thought!

Lets send some emails to major bitcoin/altcoin press sites that we are about to break some high records! Gapcoin helps spreading awareness of what the bitcoin protocol can do! Anyone have a email list?

legendary
Activity: 1792
Merit: 1010
New merit record!

http://coinia.net/gapcoin/blockexplorer.php?q=9ba300fb1ccee419d6c99c9a7b1f3434f5c09124a66dee9d2f1274c5115b2eb4

merit: 32.92211489
gap length: 6396
start prime: 2362114383441832500322011387943037977164194150997773091406607778787608479543714 567191
end prime: 2362114383441832500322011387943037977164194150997773091406607778787608479543714 573587

./gapcoind signmessage "GMhhQ2Evh5P6mjoQRHokkz17gakvLjAizC" "Yes thats my address - dcct"
H654Z+DUgc78Q3L/gcg7lHCxiARH3unyEC08tZ6/d868ZZvtHz1P3j/G0k8cijEUbHpa5sRL3pv3xIoL1XonhkM=


I think we will find a lot more high merits soon. 35.4245 is the largest known.

noticed that total network primes per second has reached close to 35 million

disconnected from the pool altogether

A) pool bumped own difficulty threshold up
B) they can not handle number of workers and shares can and will be lost

if in 24 hour cycle I don't detected any blocks on solo, I am out (AWS) till GPU miner

also noticed price increase per GAP, but this is just increase not the price, real price will happen if this continues in time
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