PrimeGrid
Please visit donation page to help the project cover running costs for this month

Toggle Menu

Join PrimeGrid

Returning Participants

Community

Leader Boards

Results

Other

drummers-lowrise

Advanced search

Message boards : Seventeen or Bust : Crunching k=10223 and k=67607

Author Message
Profile Michael GoetzProject donor
Volunteer moderator
Project administrator
Project scientist
Avatar
Send message
Joined: 21 Jan 10
Posts: 12185
ID: 53948
Credit: 168,288,807
RAC: 147,501
The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,063,182)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Ruby: Earned 2,000,000 credits (2,001,789)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,115,831)PPS LLR Ruby: Earned 2,000,000 credits (2,768,012)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Sapphire: Earned 20,000,000 credits (29,872,580)SR5 LLR Turquoise: Earned 5,000,000 credits (7,691,131)SGS LLR Ruby: Earned 2,000,000 credits (2,011,264)TRP LLR Ruby: Earned 2,000,000 credits (2,433,520)Woodall LLR Ruby: Earned 2,000,000 credits (2,176,414)321 Sieve Gold: Earned 500,000 credits (604,319)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (20,110,788)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Turquoise: Earned 5,000,000 credits (7,086,053)GFN Emerald: Earned 50,000,000 credits (60,366,801)PSA Jade: Earned 10,000,000 credits (10,038,118)
Message 82989 - Posted: 28 Jan 2015 | 16:33:26 UTC
Last modified: 29 Jan 2015 | 0:26:55 UTC

After some discussion with Louie Helm at Seventeen or Bust, we are going to change the way work is divided between SoB and PG. After a transition period, PrimeGrid will be crunching only k=10223 and k=67607, while SoB will crunch only the other 4 k's. Each project will be entirely responsible for its own k's.

Why? Well, if we never find another SoB prime, things will work fine the way are now. But if we take a more optimistic view and assume we WILL find a prime, there's a problem: We'll have wasted an immense amount of crunching. This change will correct that problem.

Currently, PrimeGrid is crunching in the n=27M range, and SoB is crunching in the 29M range. If PrimeGrid finds a prime in the 27M range, every test that SoB did in the 28M and 29M ranges in that k will have been wasted effort! Likewise, once we finish the 27M tests and move on to 31M tests, if SoB finds a prime, everything PrimeGrid will have tested at 31M in that k will have been wasted.

By dividing the work by k we avoid this problem.

One thing that doesn't change: if PrimeGrid finds a prime, both PG and SoB share the project credit for the discovery.

The current plan is for us to complete the current 27M and upcoming 31M tests in all the k's and then only crunch 10223 and 67607. At some point we will probably do some double checking of earlier SoB work that was not yet double checked. Details will become available later.

(For those that are curious and more attuned to the details, the residues that SoB uses are not the same as what PrimeGrid normally uses. This makes double checks more complicated. However, our LLR program can do the same test and produce the same residue as SoB's software if we use the correct command line arguments. However, SoB's older software has completely incompatible residues, so hopefully there aren't a lot of those that need double checking.)
____________
Please do not PM me with support questions. Ask on the forums instead. Thank you!

My lucky number is 75898524288+1

HonzaProject donor
Volunteer moderator
Volunteer tester
Project scientist
Send message
Joined: 15 Aug 05
Posts: 1767
ID: 352
Credit: 2,302,264,209
RAC: 1,246,673
Discovered 5 mega primesEliminated 3 conjecture "k"sFound 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2018 Tour de Primes Mountain Stage2019 Tour de Primes largest primeFound 4 primes in the 2019 Tour de PrimesFound 1 mega prime in the 2019 Tour de PrimesFound 1 prime in the 2019 Tour de Primes Mountain Stage321 LLR Emerald: Earned 50,000,000 credits (50,550,707)Cullen LLR Sapphire: Earned 20,000,000 credits (25,925,280)ESP LLR Sapphire: Earned 20,000,000 credits (22,668,198)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (28,861,417)PPS LLR Emerald: Earned 50,000,000 credits (80,425,039)PSP LLR Sapphire: Earned 20,000,000 credits (23,462,639)SoB LLR Emerald: Earned 50,000,000 credits (67,569,353)SR5 LLR Emerald: Earned 50,000,000 credits (50,308,578)SGS LLR Sapphire: Earned 20,000,000 credits (22,597,792)TPS LLR (retired) Bronze: Earned 10,000 credits (43,033)TRP LLR Emerald: Earned 50,000,000 credits (51,404,601)Woodall LLR Sapphire: Earned 20,000,000 credits (24,573,411)321 Sieve Ruby: Earned 2,000,000 credits (4,024,795)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,142,109)Generalized Cullen/Woodall Sieve Emerald: Earned 50,000,000 credits (50,504,945)PPS Sieve Double Gold: Earned 500,000,000 credits (504,377,255)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,288,222)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,149,354)AP 26/27 Double Bronze: Earned 100,000,000 credits (107,452,418)GFN Double Gold: Earned 500,000,000 credits (611,817,214)PSA Double Gold: Earned 500,000,000 credits (531,105,040)
Message 83007 - Posted: 29 Jan 2015 | 9:26:20 UTC

Agree, it seems to be a more effective way, also in term of no longer reserving ranges etc.

Is it expected (or desirable) that both PG and SoB maintaine about the same progress for each k?

(for sure, once a k is eliminated, we might need to reconsider splitting other k's).

Is sieving done up to 50M?
If there is need for more, I assume PG will do more sieving and provide remaining candidates to SoB.
____________
My stats
Badge score: 1*1 + 5*2 + 8*8 + 9*6 + 10*1 + 12*3 = 175

Profile Michael GoetzProject donor
Volunteer moderator
Project administrator
Project scientist
Avatar
Send message
Joined: 21 Jan 10
Posts: 12185
ID: 53948
Credit: 168,288,807
RAC: 147,501
The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,063,182)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Ruby: Earned 2,000,000 credits (2,001,789)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,115,831)PPS LLR Ruby: Earned 2,000,000 credits (2,768,012)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Sapphire: Earned 20,000,000 credits (29,872,580)SR5 LLR Turquoise: Earned 5,000,000 credits (7,691,131)SGS LLR Ruby: Earned 2,000,000 credits (2,011,264)TRP LLR Ruby: Earned 2,000,000 credits (2,433,520)Woodall LLR Ruby: Earned 2,000,000 credits (2,176,414)321 Sieve Gold: Earned 500,000 credits (604,319)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (20,110,788)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Turquoise: Earned 5,000,000 credits (7,086,053)GFN Emerald: Earned 50,000,000 credits (60,366,801)PSA Jade: Earned 10,000,000 credits (10,038,118)
Message 83010 - Posted: 29 Jan 2015 | 10:30:44 UTC - in response to Message 83007.

Is it expected (or desirable) that both PG and SoB maintaine about the same progress for each k?


Desirable? Not sure. We've punched certain k's higher for some reason in the past in conjectures. In the end, it doesn't matter much what order you search the k's because to solve the conjecture you need to do all those tests anyway. In a sense, you could treat each k as an individual project.

The only thing binding them together is sieving. We're done with sieving up to 50M, so that's not a factor anymore.

It's almost certain that PG and SoB will not advance at the same speed, so one of us will definitely be at a higher n,

(for sure, once a k is eliminated, we might need to reconsider splitting other k's).


That's the reason we have 2 k's instead of 1 k. When we find a prime in one of the 2 k's, we still have another k to crunch while we figure out which remaining k (if any) to transfer from SoB to PG.

Is sieving done up to 50M?


Yes. We're sieving ESP up to 50M too, but SoB and PSP are completely sieved to 50M.

____________
Please do not PM me with support questions. Ask on the forums instead. Thank you!

My lucky number is 75898524288+1

Profile Pooh Bear 27Project donor
Avatar
Send message
Joined: 10 May 09
Posts: 672
ID: 39821
Credit: 394,942,575
RAC: 114,824
Discovered 1 mega primeEliminated 1 conjecture "k"Discovered 1 twin prime321 LLR Turquoise: Earned 5,000,000 credits (5,014,405)Cullen LLR Turquoise: Earned 5,000,000 credits (5,734,854)ESP LLR Turquoise: Earned 5,000,000 credits (5,421,149)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,576,209)PPS LLR Turquoise: Earned 5,000,000 credits (9,825,243)PSP LLR Turquoise: Earned 5,000,000 credits (9,352,326)SoB LLR Turquoise: Earned 5,000,000 credits (8,986,628)SR5 LLR Turquoise: Earned 5,000,000 credits (5,248,659)SGS LLR Turquoise: Earned 5,000,000 credits (6,878,856)TRP LLR Turquoise: Earned 5,000,000 credits (5,416,106)Woodall LLR Turquoise: Earned 5,000,000 credits (6,400,237)321 Sieve Amethyst: Earned 1,000,000 credits (1,000,576)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,000,977)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (6,843,367)PPS Sieve Emerald: Earned 50,000,000 credits (78,673,438)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (6,473,750)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,243,608)AP 26/27 Jade: Earned 10,000,000 credits (11,613,622)GFN Double Bronze: Earned 100,000,000 credits (199,196,697)PSA Turquoise: Earned 5,000,000 credits (5,042,125)
Message 83052 - Posted: 30 Jan 2015 | 2:50:25 UTC

What does this mean in time and deadline?

Profile Michael GoetzProject donor
Volunteer moderator
Project administrator
Project scientist
Avatar
Send message
Joined: 21 Jan 10
Posts: 12185
ID: 53948
Credit: 168,288,807
RAC: 147,501
The "Shut up already!" badge:  This loud mouth has mansplained on the forums over 10 thousand times!  Sheesh!!!Discovered the World's First GFN-19 prime!!!Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,063,182)Cullen LLR Ruby: Earned 2,000,000 credits (2,005,249)ESP LLR Ruby: Earned 2,000,000 credits (2,001,789)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,115,831)PPS LLR Ruby: Earned 2,000,000 credits (2,768,012)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Sapphire: Earned 20,000,000 credits (29,872,580)SR5 LLR Turquoise: Earned 5,000,000 credits (7,691,131)SGS LLR Ruby: Earned 2,000,000 credits (2,011,264)TRP LLR Ruby: Earned 2,000,000 credits (2,433,520)Woodall LLR Ruby: Earned 2,000,000 credits (2,176,414)321 Sieve Gold: Earned 500,000 credits (604,319)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (5,059,304)PPS Sieve Sapphire: Earned 20,000,000 credits (20,110,788)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Turquoise: Earned 5,000,000 credits (7,086,053)GFN Emerald: Earned 50,000,000 credits (60,366,801)PSA Jade: Earned 10,000,000 credits (10,038,118)
Message 83062 - Posted: 30 Jan 2015 | 11:52:12 UTC - in response to Message 83052.

What does this mean in time and deadline?


Immediately, nothing. I expect some double check tasks will be a lot shorter and likely have much shorter deadlines, but details are not available yet.
____________
Please do not PM me with support questions. Ask on the forums instead. Thank you!

My lucky number is 75898524288+1

JimBProject donor
Volunteer moderator
Project administrator
Project developer
Send message
Joined: 4 Aug 11
Posts: 828
ID: 107307
Credit: 808,694,480
RAC: 10,641,524
321 LLR Ruby: Earned 2,000,000 credits (2,071,006)Cullen LLR Ruby: Earned 2,000,000 credits (2,552,217)ESP LLR Turquoise: Earned 5,000,000 credits (5,014,632)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,366,182)PPS LLR Ruby: Earned 2,000,000 credits (2,102,391)PSP LLR Turquoise: Earned 5,000,000 credits (5,013,650)SoB LLR Sapphire: Earned 20,000,000 credits (28,091,976)SR5 LLR Jade: Earned 10,000,000 credits (10,153,648)SGS LLR Ruby: Earned 2,000,000 credits (2,069,426)TRP LLR Ruby: Earned 2,000,000 credits (2,105,945)Woodall LLR Ruby: Earned 2,000,000 credits (2,482,910)321 Sieve Amethyst: Earned 1,000,000 credits (1,943,703)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,002,919)Generalized Cullen/Woodall Sieve Sapphire: Earned 20,000,000 credits (20,005,451)PPS Sieve Emerald: Earned 50,000,000 credits (50,809,179)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,341,676)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,804)AP 26/27 Jade: Earned 10,000,000 credits (10,592,660)GFN Sapphire: Earned 20,000,000 credits (30,591,215)PSA Double Gold: Earned 500,000,000 credits (622,313,500)
Message 86243 - Posted: 15 Jun 2015 | 19:42:44 UTC
Last modified: 15 Jun 2015 | 19:43:32 UTC

It looks like the Seventeen or Bust project stopped crunching k=10223 and k=67607 at a little over n=29,183,000. Candidates for those two k values from 29.183M<n<31M have now been added to the system and will start going out soon. All work goes out in n,k order so those will run before the 31M range. Thanks to KEP for pointing this out.

Message boards : Seventeen or Bust : Crunching k=10223 and k=67607

[Return to PrimeGrid main page]
DNS Powered by DNSEXIT.COM
Copyright © 2005 - 2019 Rytis Slatkevičius (contact) and PrimeGrid community. Server load 1.48, 1.79, 1.88
Generated 20 Mar 2019 | 20:08:51 UTC