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Message boards : Generalized Fermat Prime Search : GFN-14/13/... MEGA Prime Search on GFN Server

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stream
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Joined: 1 Mar 14
Posts: 920
ID: 301928
Credit: 513,298,826
RAC: 4,577
Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 146067 - Posted: 3 Dec 2020 | 19:14:13 UTC
Last modified: 3 Aug 2021 | 8:52:12 UTC

Project description

The goal of GFN-MEGA project series is to find a MEGA prime for each GFN exponent, until software limits allows. MEGA Primes for GFN-17 and above were found or being searched on PrimeGrid. MEGA Primes for GFN-16 and GFN-15 were already found in these series. Now it's a time for GFN-14 MEGA, GFN-13 MEGA and so on. Last project in the series (when we hit software and math limits) is not determined yet, it can be either GFN-12 MEGA either GFN-11 MEGA.

These projects are exactly the same as previous GFN-15 project, so for detailed description and instructions please read top post in GFN-15 MEGA thread: https://www.primegrid.com/forum_thread.php?id=9198 . Everything is the same except:

GFN-14 MEGA:


  • This is a GFN-14, so we're looking for MEGA Prime in form b16384+1
  • Search will be started from bmin = 10841645805132531666786792405311319418846637043199917731144080
  • Project name (for app_config.xml) is gfn14_mega


GFN-13 MEGA:


  • Prime have form b8192+1
  • Search will be started from bmin = 117541283763947820803514936063599937165870515987063348437723855381224452611844232886228245901292532817349347812678728888242
  • Project name (for app_config.xml) is gfn13_mega


GFN-12 MEGA:


  • Prime have form b4096+1
  • Search will be started from bmin = 138159533888....097738460 (very long, 245 digits)
  • Project name (for app_config.xml) is gfn12_mega


Duration of all projects will follow same rules as GFN-15 MEGA - one month after prime will be found. Minimal duration will be 3 months (even if prime will be found faster).

For new users, please note once again that this is not a PrimeGrid project. It's running on separate server. Instructions to join are in the post mentioned above.

Current project status

GFN-14 MEGA: (completed)
2020-12-05: Project started
2020-12-17: First GFN14-MEGA Prime found
2021-03-05: Work loading stopped, cleanup started.
2021-04-13: Last task returned, project completed at bmin+600000, 2 primes found.

GFN-13 MEGA: (completed)
2021-03-27: Project started
2021-04-03: First GFN13-MEGA Prime found
2021-06-27: No new work will be loaded after this date
2021-07-30: Last task returned, project completed at bmin+600000, 5 primes found.

GFN-12 MEGA: (running)
2021-07-26: Project started
2021-08-03: First GFN12-MEGA Prime found
2021-10-26: No new work will be loaded after this date

Good luck and happy crunching!

FrankProject donor
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Joined: 30 Dec 17
Posts: 25
ID: 964965
Credit: 267,139,543
RAC: 1,214,858
Discovered 2 mega primesFound 2 primes in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,018,828)Cullen LLR Ruby: Earned 2,000,000 credits (2,029,968)ESP LLR Ruby: Earned 2,000,000 credits (2,417,527)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,052,541)PPS LLR Turquoise: Earned 5,000,000 credits (7,670,229)PSP LLR Ruby: Earned 2,000,000 credits (4,882,320)SoB LLR Ruby: Earned 2,000,000 credits (2,082,753)SR5 LLR Ruby: Earned 2,000,000 credits (2,148,677)SGS LLR Ruby: Earned 2,000,000 credits (2,072,511)TRP LLR Ruby: Earned 2,000,000 credits (4,449,764)Woodall LLR Ruby: Earned 2,000,000 credits (2,016,314)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (4,125,872)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,260,299)PPS Sieve Emerald: Earned 50,000,000 credits (69,405,519)AP 26/27 Turquoise: Earned 5,000,000 credits (8,158,774)GFN Sapphire: Earned 20,000,000 credits (41,387,816)WW Sapphire: Earned 20,000,000 credits (43,040,000)PSA Emerald: Earned 50,000,000 credits (62,919,830)
Message 146126 - Posted: 4 Dec 2020 | 21:00:23 UTC

Looking forward to it! Thanks Stream for all your amazing effort :D

Profile robishProject donor
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Joined: 7 Jan 12
Posts: 1995
ID: 126266
Credit: 5,876,747,675
RAC: 2,628,884
Discovered the World's First AP27!!!Discovered 9 mega primesDiscovered 1 AP272018 Tour de Primes largest primeFound 4 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (9,681,253)Cullen LLR Sapphire: Earned 20,000,000 credits (46,679,120)ESP LLR Turquoise: Earned 5,000,000 credits (8,577,288)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (9,950,938)PPS LLR Emerald: Earned 50,000,000 credits (81,462,474)PSP LLR Turquoise: Earned 5,000,000 credits (9,600,575)SoB LLR Sapphire: Earned 20,000,000 credits (36,846,875)SR5 LLR Turquoise: Earned 5,000,000 credits (9,986,029)SGS LLR Turquoise: Earned 5,000,000 credits (5,658,541)TRP LLR Sapphire: Earned 20,000,000 credits (28,889,840)Woodall LLR Turquoise: Earned 5,000,000 credits (5,062,771)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,141,753)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,892,369)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,515,338)PPS Sieve Double Gold: Earned 500,000,000 credits (842,736,516)TRP Sieve (suspended) Silver: Earned 100,000 credits (121,416)AP 26/27 Emerald: Earned 50,000,000 credits (93,931,019)GFN Double Ruby: Earned 2,000,000,000 credits (4,570,479,198)WW Emerald: Earned 50,000,000 credits (96,532,000)
Message 146131 - Posted: 4 Dec 2020 | 22:57:58 UTC - in response to Message 146126.

Looking forward to it! Thanks Stream for all your amazing effort :D


+1 :)
____________
My lucky numbers 10590941048576+1 and 224584605939537911+81292139*23#*n for n=0..26

stream
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Joined: 1 Mar 14
Posts: 920
ID: 301928
Credit: 513,298,826
RAC: 4,577
Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 146164 - Posted: 5 Dec 2020 | 17:04:24 UTC

A misconfiguration of LLR2 parameters (they were tweaked in special way for more efficient processing of GFN tests) caused invalid tasks to be sent until (estimated) 15:00 UTC. These tasks cannot complete, they will fail during final "checkpoint compression" phase with error message "proof.xxx is missing or corrupt".

In most cases affected tasks should be aborted automatically when one of tasks completes and your computer connects to the server. If you don't wish to wait and you still have tasks sent before 2020-12-05 15:00 UTC (check "Sent" field in your list of tasks on the server), it's recommended to abort these tasks manually because they just will consume CPU time and fail.

Hans Sveen
Send message
Joined: 18 Aug 05
Posts: 36
ID: 423
Credit: 1,221,083,878
RAC: 1,187,261
Discovered 1 mega prime321 LLR Jade: Earned 10,000,000 credits (10,077,686)Cullen LLR Jade: Earned 10,000,000 credits (15,244,218)ESP LLR Jade: Earned 10,000,000 credits (11,796,601)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,868,013)PPS LLR Sapphire: Earned 20,000,000 credits (20,000,859)PSP LLR Jade: Earned 10,000,000 credits (13,298,024)SoB LLR Jade: Earned 10,000,000 credits (13,216,520)SR5 LLR Jade: Earned 10,000,000 credits (10,019,930)SGS LLR Amethyst: Earned 1,000,000 credits (1,587,974)TRP LLR Jade: Earned 10,000,000 credits (10,035,385)Woodall LLR Jade: Earned 10,000,000 credits (10,041,696)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,526)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,323,773)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,012,758)PPS Sieve Emerald: Earned 50,000,000 credits (77,871,919)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,081,558)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,180,919)AP 26/27 Emerald: Earned 50,000,000 credits (50,995,675)GFN Double Gold: Earned 500,000,000 credits (898,340,101)WW Emerald: Earned 50,000,000 credits (50,084,000)
Message 146165 - Posted: 5 Dec 2020 | 17:07:22 UTC
Last modified: 5 Dec 2020 | 17:14:03 UTC

Hello!
So far running this new GFN_14 Mega units has resulted in 9 finished wu's on 4 different pc's has given me bad results/uploads.

All have errors like this:

Stderr output
<core_client_version>7.16.11</core_client_version>
<![CDATA[
<stderr_txt>
BOINC PrimeGrid wrapper 2.02 (Nov 23 2020 23:35:38)
running ../../projects/boincvm.proxyma.ru_30080_test4vm/llr2_win64_201114.exe -v
LLR2 Program - Version 1.1.0, using Gwnum Library Version 29.8
running ../../projects/boincvm.proxyma.ru_30080_test4vm/llr2_win64_201114.exe -oGerbicz=1 -oProofName=proof -oProofCount=64 -oProductName=prod -oPietrzak=1 -oCachePoints=1 -pSavePoints -q10841645805132531666786792405311319418846637043199917731151338^16384+1 -oPointsPerL2=8 -oGerbiczL=16 -oGerbiczL2=2048 -oSlidingWindow=7 -d -t4 -oDiskWriteTime=4
Gerbicz check is requested, switching to PRP.
Starting probable prime test of 10841645805132531666786792405311319418846637043199917731151338^16384+1
Using generic reduction AVX FFT length 336K, Pass1=448, Pass2=768, clm=2, 4 threads, a = 3, L2 = 16*128, M = 255
proof.8 is missing or corrupt.
14:45:02 (7212): called boinc_finish(0)

</stderr_txt>
<message>
upload failure: <file_xfer_error>
<file_name>llr2_843909_qkuzkj_336660752_r1036350543_4</file_name>
<error_code>-240 (stat() failed)</error_code>
</file_xfer_error>
<file_xfer_error>
<file_name>llr2_843909_qkuzkj_336660752_r1036350543_5</file_name>
<error_code>-240 (stat() failed)</error_code>
</file_xfer_error>
<file_xfer_error>
<file_name>llr2_843909_qkuzkj_336660752_r1036350543_6</file_name>
<error_code>-240 (stat() failed)</error_code>
</file_xfer_error>
<file_xfer_error>
<file_name>llr2_843909_qkuzkj_336660752_r1036350543_7</file_name>
<error_code>-240 (stat() failed)</error_code>
</file_xfer_error>
<file_xfer_error>
<file_name>llr2_843909_qkuzkj_336660752_r1036350543_8</file_name>
<error_code>-240 (stat() failed)</error_code>
</file_xfer_error>
<file_xfer_error>
<file_name>llr2_843909_qkuzkj_336660752_r1036350543_9</file_name>
<error_code>-240 (stat() failed)</error_code>
</file_xfer_error>
<file_xfer_error>
<file_name>llr2_843909_qkuzkj_336660752_r1036350543_10</file_name>
<error_code>-240 (stat() failed)</error_code>
</file_xfer_error>
<file_xfer_error>
<file_name>llr2_843909_qkuzkj_336660752_r1036350543_11</file_name>
<error_code>-240 (stat() failed)</error_code>
</file_xfer_error>
</message>
]]>

I've put my computers to no new work until problem is solved馃槒

With regards,
Hans Sveen
Oslo


PSS
My writing was too slow, problem is already explained !!
Sorry !!!
____________
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stream
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Joined: 1 Mar 14
Posts: 920
ID: 301928
Credit: 513,298,826
RAC: 4,577
Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 146166 - Posted: 5 Dec 2020 | 17:17:20 UTC

Update: you can just press "Update" button in Boinc client to force connection to server, and all affected tasks will be aborted.

Yves Gallot
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Joined: 19 Aug 12
Posts: 672
ID: 164101
Credit: 305,042,960
RAC: 0
GFN Double Silver: Earned 200,000,000 credits (305,042,960)
Message 146254 - Posted: 7 Dec 2020 | 12:32:42 UTC

Here is a bit of probabilities.
The expected number of GF primes in [bmin; bmin + d] (where bmin >> d) is Cnd / (2n log bmin).
The mean gap between two primes is (#primes = 1) 螖b = log bmin 路 2n / Cn.
With mega-numbers log bmin 路 2n = log 10999999 = 2302582.79.
For GFN-14, we have C14 = 8.009684535 then 螖b = 287475.

The range was sieved to pmax = 36路1018. The sieve removed 80% candidates.
If 螖cand is the number of candidates for one prime, we have 螖cand = (螖b / 2) 路 20% = 28747.

Note that we could have used the estimate 螖cand = e-纬 log N / log pmax = 0.5614594836 x 2302582.79 / 45.03 = 28710.

The likelihood of success is L = 1 - e-位 where 位 = #cand / 螖cand.
L = 25%, #cand = 8264,
L = 50%, #cand = 19912,
L = 75%, #cand = 39824,
L = 97%, #cand = 100733.

Profile robishProject donor
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Joined: 7 Jan 12
Posts: 1995
ID: 126266
Credit: 5,876,747,675
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Discovered the World's First AP27!!!Discovered 9 mega primesDiscovered 1 AP272018 Tour de Primes largest primeFound 4 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (9,681,253)Cullen LLR Sapphire: Earned 20,000,000 credits (46,679,120)ESP LLR Turquoise: Earned 5,000,000 credits (8,577,288)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (9,950,938)PPS LLR Emerald: Earned 50,000,000 credits (81,462,474)PSP LLR Turquoise: Earned 5,000,000 credits (9,600,575)SoB LLR Sapphire: Earned 20,000,000 credits (36,846,875)SR5 LLR Turquoise: Earned 5,000,000 credits (9,986,029)SGS LLR Turquoise: Earned 5,000,000 credits (5,658,541)TRP LLR Sapphire: Earned 20,000,000 credits (28,889,840)Woodall LLR Turquoise: Earned 5,000,000 credits (5,062,771)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,141,753)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,892,369)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,515,338)PPS Sieve Double Gold: Earned 500,000,000 credits (842,736,516)TRP Sieve (suspended) Silver: Earned 100,000 credits (121,416)AP 26/27 Emerald: Earned 50,000,000 credits (93,931,019)GFN Double Ruby: Earned 2,000,000,000 credits (4,570,479,198)WW Emerald: Earned 50,000,000 credits (96,532,000)
Message 146459 - Posted: 9 Dec 2020 | 22:47:35 UTC - in response to Message 146254.

Here is a bit of probabilities.
The expected number of GF primes in [bmin; bmin + d] (where bmin >> d) is Cnd / (2n log bmin).
The mean gap between two primes is (#primes = 1) 螖b = log bmin 路 2n / Cn.
With mega-numbers log bmin 路 2n = log 10999999 = 2302582.79.
For GFN-14, we have C14 = 8.009684535 then 螖b = 287475.

The range was sieved to pmax = 36路1018. The sieve removed 80% candidates.
If 螖cand is the number of candidates for one prime, we have 螖cand = (螖b / 2) 路 20% = 28747.

Note that we could have used the estimate 螖cand = e-纬 log N / log pmax = 0.5614594836 x 2302582.79 / 45.03 = 28710.

The likelihood of success is L = 1 - e-位 where 位 = #cand / 螖cand.
L = 25%, #cand = 8264,
L = 50%, #cand = 19912,
L = 75%, #cand = 39824,
L = 97%, #cand = 100733.



Thanks Yves

Nice to know :)

Cheers

Rob.
____________
My lucky numbers 10590941048576+1 and 224584605939537911+81292139*23#*n for n=0..26

Yves Gallot
Volunteer developer
Project scientist
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Joined: 19 Aug 12
Posts: 672
ID: 164101
Credit: 305,042,960
RAC: 0
GFN Double Silver: Earned 200,000,000 credits (305,042,960)
Message 146478 - Posted: 10 Dec 2020 | 11:13:18 UTC
Last modified: 10 Dec 2020 | 11:13:44 UTC

1000 tasks/day, 4000 validated
Likelihood of success before Great Conjunction Challenge is
1 - exp(-(4000 + 11000) / 28747) = 40% !!!

Profile dannyridel
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Joined: 3 Feb 19
Posts: 919
ID: 1097922
Credit: 20,097,369
RAC: 20,484
Discovered 1 mega prime321 LLR Gold: Earned 500,000 credits (506,806)Cullen LLR Silver: Earned 100,000 credits (112,212)ESP LLR Silver: Earned 100,000 credits (255,803)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (509,419)PPS LLR Ruby: Earned 2,000,000 credits (2,001,172)PSP LLR Gold: Earned 500,000 credits (616,940)SoB LLR Gold: Earned 500,000 credits (533,625)SR5 LLR Silver: Earned 100,000 credits (108,281)SGS LLR Gold: Earned 500,000 credits (501,474)TRP LLR Silver: Earned 100,000 credits (146,999)Woodall LLR Silver: Earned 100,000 credits (117,864)321 Sieve (suspended) Gold: Earned 500,000 credits (506,814)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Ruby: Earned 2,000,000 credits (2,808,043)AP 26/27 Amethyst: Earned 1,000,000 credits (1,273,545)GFN Ruby: Earned 2,000,000 credits (3,547,304)WW Turquoise: Earned 5,000,000 credits (6,148,000)PSA Silver: Earned 100,000 credits (373,034)
Message 146485 - Posted: 10 Dec 2020 | 14:39:05 UTC

It's really interesting to see how both 'normal' and 'mega' GFN14 are being tested at the same time...
____________
SHSIDElectronicsGroup@outlook.com

waiting for a TdP prime...
Proth "SoB": 44243*2^440969+1


stream
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Credit: 513,298,826
RAC: 4,577
Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 146777 - Posted: 18 Dec 2020 | 8:14:55 UTC

A quick success!

On 17 Dec 2020, 12:38:09 UTC, PDW found a prime 10841645805132531666786792405311319418846637043199917731150000^16384+1 (at bmin+5920). Congratulations!

As you can see, bmin is very small. If workunit wasn't timed out and aborted twice before PDW grabbed it, the prime could be found on the first day of the search.

Main goal of project is reached, first GFN-14 MEGA Prime found. Project will be active and new work will be loaded for 3 months since day of the start, until 05 March 2021.

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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (529,293)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Jade: Earned 10,000,000 credits (13,183,424)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (2,059,478)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 146778 - Posted: 18 Dec 2020 | 9:00:24 UTC - in response to Message 146777.

Congratulations! Nice one.

Not sure if I find it relevant to continue until March when the prime has already been found.

/JeppeSN

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Credit: 1,730,343,278
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321 LLR Amethyst: Earned 1,000,000 credits (1,004,410)Cullen LLR Amethyst: Earned 1,000,000 credits (1,004,515)ESP LLR Amethyst: Earned 1,000,000 credits (1,001,003)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (100,191)PPS LLR Bronze: Earned 10,000 credits (10,036)PSP LLR Jade: Earned 10,000,000 credits (10,019,714)SoB LLR Turquoise: Earned 5,000,000 credits (5,406,580)SR5 LLR Silver: Earned 100,000 credits (100,048)SGS LLR Amethyst: Earned 1,000,000 credits (1,000,074)TRP LLR Amethyst: Earned 1,000,000 credits (1,005,903)Woodall LLR Turquoise: Earned 5,000,000 credits (5,492,312)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,002,724)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,001,059)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,387,338,421)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (10,212)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,004,748)AP 26/27 Double Bronze: Earned 100,000,000 credits (100,678,786)GFN Double Bronze: Earned 100,000,000 credits (100,056,275)WW Double Bronze: Earned 100,000,000 credits (100,000,000)PSA Ruby: Earned 2,000,000 credits (4,106,269)
Message 146779 - Posted: 18 Dec 2020 | 9:04:05 UTC - in response to Message 146777.

A quick success!

On 17 Dec 2020, 12:38:09 UTC, PDW found a prime 10841645805132531666786792405311319418846637043199917731150000^16384+1 (at bmin+5920). Congratulations!

As you can see, bmin is very small. If workunit wasn't timed out and aborted twice before PDW grabbed it, the prime could be found on the first day of the search.

Main goal of project is reached, first GFN-14 MEGA Prime found. Project will be active and new work will be loaded for 3 months since day of the start, until 05 March 2021.

Thank you :)

3rd time lucky, 1st and 2nd would be kicking themselves if they knew who they were.

That's also my 2021 goals met a year early :D

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Discovered the World's First AP27!!!Discovered 9 mega primesDiscovered 1 AP272018 Tour de Primes largest primeFound 4 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (9,681,253)Cullen LLR Sapphire: Earned 20,000,000 credits (46,679,120)ESP LLR Turquoise: Earned 5,000,000 credits (8,577,288)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (9,950,938)PPS LLR Emerald: Earned 50,000,000 credits (81,462,474)PSP LLR Turquoise: Earned 5,000,000 credits (9,600,575)SoB LLR Sapphire: Earned 20,000,000 credits (36,846,875)SR5 LLR Turquoise: Earned 5,000,000 credits (9,986,029)SGS LLR Turquoise: Earned 5,000,000 credits (5,658,541)TRP LLR Sapphire: Earned 20,000,000 credits (28,889,840)Woodall LLR Turquoise: Earned 5,000,000 credits (5,062,771)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,141,753)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,892,369)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,515,338)PPS Sieve Double Gold: Earned 500,000,000 credits (842,736,516)TRP Sieve (suspended) Silver: Earned 100,000 credits (121,416)AP 26/27 Emerald: Earned 50,000,000 credits (93,931,019)GFN Double Ruby: Earned 2,000,000,000 credits (4,570,479,198)WW Emerald: Earned 50,000,000 credits (96,532,000)
Message 146790 - Posted: 18 Dec 2020 | 11:08:14 UTC

Congrats PDW! Well done :)
____________
My lucky numbers 10590941048576+1 and 224584605939537911+81292139*23#*n for n=0..26

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ID: 373199
Credit: 1,730,343,278
RAC: 574
321 LLR Amethyst: Earned 1,000,000 credits (1,004,410)Cullen LLR Amethyst: Earned 1,000,000 credits (1,004,515)ESP LLR Amethyst: Earned 1,000,000 credits (1,001,003)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (100,191)PPS LLR Bronze: Earned 10,000 credits (10,036)PSP LLR Jade: Earned 10,000,000 credits (10,019,714)SoB LLR Turquoise: Earned 5,000,000 credits (5,406,580)SR5 LLR Silver: Earned 100,000 credits (100,048)SGS LLR Amethyst: Earned 1,000,000 credits (1,000,074)TRP LLR Amethyst: Earned 1,000,000 credits (1,005,903)Woodall LLR Turquoise: Earned 5,000,000 credits (5,492,312)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,002,724)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,001,059)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,387,338,421)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (10,212)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,004,748)AP 26/27 Double Bronze: Earned 100,000,000 credits (100,678,786)GFN Double Bronze: Earned 100,000,000 credits (100,056,275)WW Double Bronze: Earned 100,000,000 credits (100,000,000)PSA Ruby: Earned 2,000,000 credits (4,106,269)
Message 146793 - Posted: 18 Dec 2020 | 11:44:03 UTC - in response to Message 146790.

Thank you, there's still that obligatory second one left to find, just waiting for stream to post that it is unlikely to happen first !

stream
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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 146795 - Posted: 18 Dec 2020 | 12:37:04 UTC - in response to Message 146778.

Not sure if I find it relevant to continue until March when the prime has already been found.

It's for WUProp hours. Although finding an exotic prime (even not a first one) can be a good goal itself too.

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Credit: 267,139,543
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Discovered 2 mega primesFound 2 primes in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,018,828)Cullen LLR Ruby: Earned 2,000,000 credits (2,029,968)ESP LLR Ruby: Earned 2,000,000 credits (2,417,527)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,052,541)PPS LLR Turquoise: Earned 5,000,000 credits (7,670,229)PSP LLR Ruby: Earned 2,000,000 credits (4,882,320)SoB LLR Ruby: Earned 2,000,000 credits (2,082,753)SR5 LLR Ruby: Earned 2,000,000 credits (2,148,677)SGS LLR Ruby: Earned 2,000,000 credits (2,072,511)TRP LLR Ruby: Earned 2,000,000 credits (4,449,764)Woodall LLR Ruby: Earned 2,000,000 credits (2,016,314)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (4,125,872)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,260,299)PPS Sieve Emerald: Earned 50,000,000 credits (69,405,519)AP 26/27 Turquoise: Earned 5,000,000 credits (8,158,774)GFN Sapphire: Earned 20,000,000 credits (41,387,816)WW Sapphire: Earned 20,000,000 credits (43,040,000)PSA Emerald: Earned 50,000,000 credits (62,919,830)
Message 146833 - Posted: 19 Dec 2020 | 13:03:26 UTC

Congratulations PDW!

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Discovered 3 mega primesFound 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2018 Tour de Primes Mountain StageFound 4 primes in the 2019 Tour de PrimesFound 2 primes in the 2019 Tour de Primes Mountain Stage2020 Tour de Primes most Mountain Stage primesFound 3 primes in the 2020 Tour de PrimesFound 2 primes in the 2020 Tour de Primes Mountain StageFound 1 prime in the 2021 Tour de PrimesFound 1 mega prime in the 2021 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,173,611)Cullen LLR Ruby: Earned 2,000,000 credits (2,542,805)ESP LLR Jade: Earned 10,000,000 credits (12,054,435)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,696,208)PPS LLR Emerald: Earned 50,000,000 credits (74,720,046)PSP LLR Sapphire: Earned 20,000,000 credits (23,095,493)SoB LLR Jade: Earned 10,000,000 credits (16,948,839)SR5 LLR Sapphire: Earned 20,000,000 credits (28,654,266)SGS LLR Jade: Earned 10,000,000 credits (15,862,943)TRP LLR Jade: Earned 10,000,000 credits (10,238,249)Woodall LLR Ruby: Earned 2,000,000 credits (2,369,390)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,421,223)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,165,870)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,012,635)PPS Sieve Double Gold: Earned 500,000,000 credits (509,855,089)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (727,064)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,187,678)AP 26/27 Double Bronze: Earned 100,000,000 credits (100,614,098)GFN Double Silver: Earned 200,000,000 credits (292,160,205)WW Double Silver: Earned 200,000,000 credits (247,544,000)PSA Emerald: Earned 50,000,000 credits (52,917,724)
Message 146845 - Posted: 19 Dec 2020 | 18:11:57 UTC - in response to Message 146779.

A quick success!

On 17 Dec 2020, 12:38:09 UTC, PDW found a prime 10841645805132531666786792405311319418846637043199917731150000^16384+1 (at bmin+5920). Congratulations!

As you can see, bmin is very small. If workunit wasn't timed out and aborted twice before PDW grabbed it, the prime could be found on the first day of the search.

Main goal of project is reached, first GFN-14 MEGA Prime found. Project will be active and new work will be loaded for 3 months since day of the start, until 05 March 2021.

Thank you :)

3rd time lucky, 1st and 2nd would be kicking themselves if they knew who they were.

That's also my 2021 goals met a year early :D


I tried to go back and check, but I don't think it was me. I only see one WU in Error state for me, from Dec 5. It was finally completed by Robish, and it was very close to this prime:
10841645805132531666786792405311319418846637043199917731151866^16384+1
____________

Proud member of Team Aggie the Pew

"Wir m眉ssen wissen. Wir werden wissen."
"We must know, we shall know."
- David Hilbert, 1930

stream
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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 146956 - Posted: 22 Dec 2020 | 20:48:14 UTC - in response to Message 146793.

Thank you, there's still that obligatory second one left to find, just waiting for stream to post that it is unlikely to happen first !

Today, all candidates below bmin+5920 were returned as composites, so a prime found by PDW is an official first/lowest GFN-14 Mega Prime!

stream
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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 146977 - Posted: 23 Dec 2020 | 9:49:16 UTC

New prime at bmin+167796!

https://primes.utm.edu/primes/page.php?id=131496

Congratulations Pavel!

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 149141 - Posted: 3 Mar 2021 | 8:40:35 UTC

The GFN-14 MEGA prime search is close to planned finish, which will happen on March 05. After this day, no new work will be loaded and project will be shut down after cleanup of all currently loaded and pending tests. The goal of project has been successfully reached, finding 2 mega primes, and few last weeks project was run mostly for peoples who have own goals or need WuProp hours.

GFN-14 MEGA search will be replaced by next project in sequence, GFN-13 MEGA search. It's bmin will be much bigger, but still manageable and, I hope, we will be able to factor resulting b to prove that number is prime (otherwise, we can get mathematically proof only for PRP).

To avoid conflict with PrimeGrid activities (upcoming SoB challenge on March 14 and attempt to finish DIV project before SoB challenge), start of GFN-13 project will be delayed. Estimated start date of new project will be Saturday, March 27. It's possible that GFN-14 MEGA will be completely cleaned up before this point and no any GFN-MEGA tasks will be available for few days. In this case, feel free to join "LLR2 testing" subproject which is currently double-checking suspicious (single-residue) PrimeGrid PPS-MEGA tests and already found one missing PPS-MEGA prime.

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 149674 - Posted: 26 Mar 2021 | 10:30:41 UTC
Last modified: 26 Mar 2021 | 10:31:45 UTC

GFN-13 MEGA will be started March 27, 2021 at 09:00 UTC

There are not much differences between GFN-14 MEGA and GFN-13 MEGA, so I combined all GFN-MEGA projects into single forum thread and wrote common top post.

GFN-13 MEGA task duration and granted credit will be very close to GFN-14 MEGA. The only difference is an application name for app_config.xml - it'll be gfn13_mega

Like in previous projects in series, mutlithreading (via app_config.xml) is highly recommended for most CPUs, but its efficiency is limited to 4 cores (i.e. using more then 4 cores will not give you noticeable boost, and extra cores will mostly stay idle).

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Discovered 1 mega prime321 LLR Gold: Earned 500,000 credits (506,806)Cullen LLR Silver: Earned 100,000 credits (112,212)ESP LLR Silver: Earned 100,000 credits (255,803)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (509,419)PPS LLR Ruby: Earned 2,000,000 credits (2,001,172)PSP LLR Gold: Earned 500,000 credits (616,940)SoB LLR Gold: Earned 500,000 credits (533,625)SR5 LLR Silver: Earned 100,000 credits (108,281)SGS LLR Gold: Earned 500,000 credits (501,474)TRP LLR Silver: Earned 100,000 credits (146,999)Woodall LLR Silver: Earned 100,000 credits (117,864)321 Sieve (suspended) Gold: Earned 500,000 credits (506,814)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (30,033)PPS Sieve Ruby: Earned 2,000,000 credits (2,808,043)AP 26/27 Amethyst: Earned 1,000,000 credits (1,273,545)GFN Ruby: Earned 2,000,000 credits (3,547,304)WW Turquoise: Earned 5,000,000 credits (6,148,000)PSA Silver: Earned 100,000 credits (373,034)
Message 149683 - Posted: 26 Mar 2021 | 15:23:55 UTC - in response to Message 149674.
Last modified: 26 Mar 2021 | 15:24:16 UTC

GFN-13 MEGA will be started March 27, 2021 at 09:00 UTC

There are not much differences between GFN-14 MEGA and GFN-13 MEGA, so I combined all GFN-MEGA projects into single forum thread and wrote common top post.

GFN-13 MEGA task duration and granted credit will be very close to GFN-14 MEGA. The only difference is an application name for app_config.xml - it'll be gfn13_mega

Like in previous projects in series, mutlithreading (via app_config.xml) is highly recommended for most CPUs, but its efficiency is limited to 4 cores (i.e. using more then 4 cores will not give you noticeable boost, and extra cores will mostly stay idle).

Thank you stream and all other sievers and background people for making these MEGA searches possible!! Its been 3 searches now already!! Hope this one will be as fruitful as any!
____________
SHSIDElectronicsGroup@outlook.com

waiting for a TdP prime...
Proth "SoB": 44243*2^440969+1


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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (529,293)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Jade: Earned 10,000,000 credits (13,183,424)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (2,059,478)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 149698 - Posted: 27 Mar 2021 | 8:47:45 UTC - in response to Message 149674.

GFN-13 MEGA will be started March 27, 2021 at 09:00 UTC


When I asked, "Would anyone find it interesting to locate the first megaprime for GFN16?", I had not expected this!

The numbers are becoming silly to even write. Should we change notations? For example, the first GFN-14 mega is:
10841645805132531666786792405311319418846637043199917731150000^16384 + 1

This can in fact be written shorter if we allow:
(floor(10^(999999/16384)) + 5922)^16384 + 1

For GFN-13, such a notation becomes even more economical.

What do you think? The Prime Pages do have a few entries where the function floor is used. Maybe we should ask Caldwell?

/JeppeSN

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321 LLR Silver: Earned 100,000 credits (117,162)Cullen LLR Silver: Earned 100,000 credits (199,800)ESP LLR Bronze: Earned 10,000 credits (99,691)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (100,048)PPS LLR Bronze: Earned 10,000 credits (29,800)PSP LLR Silver: Earned 100,000 credits (296,161)SoB LLR Amethyst: Earned 1,000,000 credits (1,376,215)SR5 LLR Bronze: Earned 10,000 credits (39,698)SGS LLR Bronze: Earned 10,000 credits (18,533)TRP LLR Bronze: Earned 10,000 credits (62,235)Woodall LLR Silver: Earned 100,000 credits (240,222)321 Sieve (suspended) Bronze: Earned 10,000 credits (30,838)PPS Sieve Ruby: Earned 2,000,000 credits (2,509,768)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (16,965)TRP Sieve (suspended) Bronze: Earned 10,000 credits (14,492)AP 26/27 Ruby: Earned 2,000,000 credits (4,432,423)GFN Sapphire: Earned 20,000,000 credits (36,621,124)WW Silver: Earned 100,000 credits (484,000)
Message 149703 - Posted: 27 Mar 2021 | 10:31:30 UTC - in response to Message 149674.
Last modified: 27 Mar 2021 | 10:33:29 UTC

GFN-13 MEGA will be started March 27, 2021 at 09:00 UTC

There are not much differences between GFN-14 MEGA and GFN-13 MEGA, so I combined all GFN-MEGA projects into single forum thread and wrote common top post.

GFN-13 MEGA task duration and granted credit will be very close to GFN-14 MEGA. The only difference is an application name for app_config.xml - it'll be gfn13_mega

Like in previous projects in series, mutlithreading (via app_config.xml) is highly recommended for most CPUs, but its efficiency is limited to 4 cores (i.e. using more then 4 cores will not give you noticeable boost, and extra cores will mostly stay idle).

Is this correct to make them use 4 cores? I'd been running single core on the 14s, I didn't know you could multithread them (shouldn't it default to 4 if that's best, like the main primegrid ones do?):

<app_version> <app_name>gfn13_mega</app_name> <plan_class>mt</plan_class> <avg_ncpus>4</avg_ncpus> </app_version>

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Discovered the World's First AP27!!!Discovered 9 mega primesDiscovered 1 AP272018 Tour de Primes largest primeFound 4 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (9,681,253)Cullen LLR Sapphire: Earned 20,000,000 credits (46,679,120)ESP LLR Turquoise: Earned 5,000,000 credits (8,577,288)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (9,950,938)PPS LLR Emerald: Earned 50,000,000 credits (81,462,474)PSP LLR Turquoise: Earned 5,000,000 credits (9,600,575)SoB LLR Sapphire: Earned 20,000,000 credits (36,846,875)SR5 LLR Turquoise: Earned 5,000,000 credits (9,986,029)SGS LLR Turquoise: Earned 5,000,000 credits (5,658,541)TRP LLR Sapphire: Earned 20,000,000 credits (28,889,840)Woodall LLR Turquoise: Earned 5,000,000 credits (5,062,771)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,141,753)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,892,369)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,515,338)PPS Sieve Double Gold: Earned 500,000,000 credits (842,736,516)TRP Sieve (suspended) Silver: Earned 100,000 credits (121,416)AP 26/27 Emerald: Earned 50,000,000 credits (93,931,019)GFN Double Ruby: Earned 2,000,000,000 credits (4,570,479,198)WW Emerald: Earned 50,000,000 credits (96,532,000)
Message 149704 - Posted: 27 Mar 2021 | 10:38:39 UTC - in response to Message 149703.

GFN-13 MEGA will be started March 27, 2021 at 09:00 UTC

There are not much differences between GFN-14 MEGA and GFN-13 MEGA, so I combined all GFN-MEGA projects into single forum thread and wrote common top post.

GFN-13 MEGA task duration and granted credit will be very close to GFN-14 MEGA. The only difference is an application name for app_config.xml - it'll be gfn13_mega

Like in previous projects in series, mutlithreading (via app_config.xml) is highly recommended for most CPUs, but its efficiency is limited to 4 cores (i.e. using more then 4 cores will not give you noticeable boost, and extra cores will mostly stay idle).

Is this correct to make them use 4 cores? I'd been running single core on the 14s, I didn't know you could multithread them (shouldn't it default to 4 if that's best, like the main primegrid ones do?):

<app_version> <app_name>gfn13_mega</app_name> <plan_class>mt</plan_class> <avg_ncpus>4</avg_ncpus> </app_version>



<app_config> <app_version> <app_name>gfn13_mega</app_name> <cmdline>-t 4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> </app_config>


Yes 4 at most, try this 馃憤
____________
My lucky numbers 10590941048576+1 and 224584605939537911+81292139*23#*n for n=0..26

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321 LLR Silver: Earned 100,000 credits (117,162)Cullen LLR Silver: Earned 100,000 credits (199,800)ESP LLR Bronze: Earned 10,000 credits (99,691)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (100,048)PPS LLR Bronze: Earned 10,000 credits (29,800)PSP LLR Silver: Earned 100,000 credits (296,161)SoB LLR Amethyst: Earned 1,000,000 credits (1,376,215)SR5 LLR Bronze: Earned 10,000 credits (39,698)SGS LLR Bronze: Earned 10,000 credits (18,533)TRP LLR Bronze: Earned 10,000 credits (62,235)Woodall LLR Silver: Earned 100,000 credits (240,222)321 Sieve (suspended) Bronze: Earned 10,000 credits (30,838)PPS Sieve Ruby: Earned 2,000,000 credits (2,509,768)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (16,965)TRP Sieve (suspended) Bronze: Earned 10,000 credits (14,492)AP 26/27 Ruby: Earned 2,000,000 credits (4,432,423)GFN Sapphire: Earned 20,000,000 credits (36,621,124)WW Silver: Earned 100,000 credits (484,000)
Message 149705 - Posted: 27 Mar 2021 | 11:23:57 UTC - in response to Message 149704.

<app_config> <app_version> <app_name>gfn13_mega</app_name> <cmdline>-t 4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version> </app_config>


Yes 4 at most, try this 馃憤

Thanks! That works. I accidentally downloaded loads of LLR2 tests, I had to change my prefs on the server as it seems the server prefers I do those.

My Ryzen 3900XT uses an average of a little over 3 cores when asked to use 4, and my Xeon X5650 uses 2.

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 149743 - Posted: 29 Mar 2021 | 20:24:54 UTC

New LLR2 application (LLR2 version 1.1.1 2021-02-04, Boinc version 116) is installed (Linux only, Windows will be updated soon)

This version includes major update of gwnum (version 30.4) so it may contain unpredictable bugs (although certification will catch any possible calculation errors). Please report here if you'll notice something unusual.

New version of gwnum has improved multithreading support - is about 10% faster on GFN-MEGA tests in multithreaded setup. Speed of single-code tests is unchanged. Time per iteration on my home PC (4 cores):

Old version: 930 ms/bit
New version: 825 ms/bit

CPU usage also increased from 3.1 to 3.5 (on 4 cores).

Speed of Proth testing, most probably, was not changed, but I didn't tested much.

Also this version should read checkpoint files for tests with b <> 2 significantly faster. This improves speed of checkpoint compression at the end of test, but only in cases when LLR was restarted and checkpoint data had to be read again from disk. (It'll not affect cases when test was run continuously from beginning to end without interruption, because in this case checkpoint data is kept cached in memory and no need to read anything). A function which reads checkpoint data was completely rewritten by gwnum author, it may contain any new bugs, so please report everything unexpected.

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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (529,293)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Jade: Earned 10,000,000 credits (13,183,424)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (2,059,478)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 149839 - Posted: 4 Apr 2021 | 8:51:25 UTC

Congratulations to mmonnin (@PrimeGrid) with the GFN-13 Mega. I hope you answer Stream's messages soon so we can add you and the prime on The PrimePages. /JeppeSN

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 149840 - Posted: 4 Apr 2021 | 12:34:14 UTC
Last modified: 4 Apr 2021 | 12:35:52 UTC

Yes, we have a prime! And it's proven. The base was successfully factorized in about a hour using yafu, and prime was proven by pfgw.

It seems to be a first T5K prime for mmonnin. Congratulations! mmonnin, please follow instructions I sent you in GFN Server PM. In short, the best way is just to edit your prime reporting preferences here on PrimeGrid.

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 149891 - Posted: 7 Apr 2021 | 7:16:47 UTC

The GFN-13 MEGA Prime is on T5K.

https://primes.utm.edu/primes/page.php?id=132212

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GFN Double Silver: Earned 200,000,000 credits (305,042,960)
Message 149892 - Posted: 7 Apr 2021 | 8:09:52 UTC - in response to Message 149891.

The GFN-13 MEGA Prime is on T5K.

https://primes.utm.edu/primes/page.php?id=132212

Therefore this is 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000094467612695698498...
:-)
Congratulations to Marc Monnin and robish who sieved the range.

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 150140 - Posted: 19 Apr 2021 | 10:07:19 UTC

And we have second GFN-13 MEGA prime! Congratulations PDW!

Since T5K site is currently under maintenance and reporting is broken, prime was not reported yet. All what I can say now is that base was factorized without any problems in a fraction of a second using YAFU, it had few small and one very big factor (109 digits).

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Discovered the World's First AP27!!!Discovered 9 mega primesDiscovered 1 AP272018 Tour de Primes largest primeFound 4 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (9,681,253)Cullen LLR Sapphire: Earned 20,000,000 credits (46,679,120)ESP LLR Turquoise: Earned 5,000,000 credits (8,577,288)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (9,950,938)PPS LLR Emerald: Earned 50,000,000 credits (81,462,474)PSP LLR Turquoise: Earned 5,000,000 credits (9,600,575)SoB LLR Sapphire: Earned 20,000,000 credits (36,846,875)SR5 LLR Turquoise: Earned 5,000,000 credits (9,986,029)SGS LLR Turquoise: Earned 5,000,000 credits (5,658,541)TRP LLR Sapphire: Earned 20,000,000 credits (28,889,840)Woodall LLR Turquoise: Earned 5,000,000 credits (5,062,771)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,141,753)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,892,369)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,515,338)PPS Sieve Double Gold: Earned 500,000,000 credits (842,736,516)TRP Sieve (suspended) Silver: Earned 100,000 credits (121,416)AP 26/27 Emerald: Earned 50,000,000 credits (93,931,019)GFN Double Ruby: Earned 2,000,000,000 credits (4,570,479,198)WW Emerald: Earned 50,000,000 credits (96,532,000)
Message 150141 - Posted: 19 Apr 2021 | 11:19:26 UTC

Congrats PDW! ...and could be the 1000th Mega recorded on T5K too? ;)
____________
My lucky numbers 10590941048576+1 and 224584605939537911+81292139*23#*n for n=0..26

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Posts: 21
ID: 373199
Credit: 1,730,343,278
RAC: 574
321 LLR Amethyst: Earned 1,000,000 credits (1,004,410)Cullen LLR Amethyst: Earned 1,000,000 credits (1,004,515)ESP LLR Amethyst: Earned 1,000,000 credits (1,001,003)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (100,191)PPS LLR Bronze: Earned 10,000 credits (10,036)PSP LLR Jade: Earned 10,000,000 credits (10,019,714)SoB LLR Turquoise: Earned 5,000,000 credits (5,406,580)SR5 LLR Silver: Earned 100,000 credits (100,048)SGS LLR Amethyst: Earned 1,000,000 credits (1,000,074)TRP LLR Amethyst: Earned 1,000,000 credits (1,005,903)Woodall LLR Turquoise: Earned 5,000,000 credits (5,492,312)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,002,724)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,001,059)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,387,338,421)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (10,212)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,004,748)AP 26/27 Double Bronze: Earned 100,000,000 credits (100,678,786)GFN Double Bronze: Earned 100,000,000 credits (100,056,275)WW Double Bronze: Earned 100,000,000 credits (100,000,000)PSA Ruby: Earned 2,000,000 credits (4,106,269)
Message 150142 - Posted: 19 Apr 2021 | 12:26:59 UTC - in response to Message 150141.

Thanks.

Could depend on how long T5K stays down and not accepting finds.
I could be wrong but I think the time/date of reporting on T5K dictates the order rather than the time/date actually found ?
If that's the case it might be reported as the 1000th when it wasn't ;)

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 150145 - Posted: 20 Apr 2021 | 8:57:44 UTC

Wow! Third GFN-13 MEGA prime, very close to previous one! Congratulations [SG-FC] dingdong! Very lucky find - according to stats, this user currently did only 64 tasks!

Again, base was factorized without problems. It had only two factors, first very small and second everything else.

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Credit: 267,139,543
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Discovered 2 mega primesFound 2 primes in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,018,828)Cullen LLR Ruby: Earned 2,000,000 credits (2,029,968)ESP LLR Ruby: Earned 2,000,000 credits (2,417,527)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,052,541)PPS LLR Turquoise: Earned 5,000,000 credits (7,670,229)PSP LLR Ruby: Earned 2,000,000 credits (4,882,320)SoB LLR Ruby: Earned 2,000,000 credits (2,082,753)SR5 LLR Ruby: Earned 2,000,000 credits (2,148,677)SGS LLR Ruby: Earned 2,000,000 credits (2,072,511)TRP LLR Ruby: Earned 2,000,000 credits (4,449,764)Woodall LLR Ruby: Earned 2,000,000 credits (2,016,314)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (4,125,872)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,260,299)PPS Sieve Emerald: Earned 50,000,000 credits (69,405,519)AP 26/27 Turquoise: Earned 5,000,000 credits (8,158,774)GFN Sapphire: Earned 20,000,000 credits (41,387,816)WW Sapphire: Earned 20,000,000 credits (43,040,000)PSA Emerald: Earned 50,000,000 credits (62,919,830)
Message 150146 - Posted: 20 Apr 2021 | 13:03:44 UTC

Nice! Congratulations all!

Peter Hucker
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Joined: 23 Sep 06
Posts: 115
ID: 3541
Credit: 46,730,776
RAC: 6
321 LLR Silver: Earned 100,000 credits (117,162)Cullen LLR Silver: Earned 100,000 credits (199,800)ESP LLR Bronze: Earned 10,000 credits (99,691)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (100,048)PPS LLR Bronze: Earned 10,000 credits (29,800)PSP LLR Silver: Earned 100,000 credits (296,161)SoB LLR Amethyst: Earned 1,000,000 credits (1,376,215)SR5 LLR Bronze: Earned 10,000 credits (39,698)SGS LLR Bronze: Earned 10,000 credits (18,533)TRP LLR Bronze: Earned 10,000 credits (62,235)Woodall LLR Silver: Earned 100,000 credits (240,222)321 Sieve (suspended) Bronze: Earned 10,000 credits (30,838)PPS Sieve Ruby: Earned 2,000,000 credits (2,509,768)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (16,965)TRP Sieve (suspended) Bronze: Earned 10,000 credits (14,492)AP 26/27 Ruby: Earned 2,000,000 credits (4,432,423)GFN Sapphire: Earned 20,000,000 credits (36,621,124)WW Silver: Earned 100,000 credits (484,000)
Message 150225 - Posted: 28 Apr 2021 | 11:15:49 UTC - in response to Message 149704.

Does the "LLR2 testing" subproject do multithreading aswell?

stream
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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 150227 - Posted: 28 Apr 2021 | 13:42:47 UTC - in response to Message 150225.

Does the "LLR2 testing" subproject do multithreading aswell?

Yes, and it's currently recommended (at least until we drop down below n=2M). Application name for app_config.xml is llr2

Peter Hucker
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Joined: 23 Sep 06
Posts: 115
ID: 3541
Credit: 46,730,776
RAC: 6
321 LLR Silver: Earned 100,000 credits (117,162)Cullen LLR Silver: Earned 100,000 credits (199,800)ESP LLR Bronze: Earned 10,000 credits (99,691)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (100,048)PPS LLR Bronze: Earned 10,000 credits (29,800)PSP LLR Silver: Earned 100,000 credits (296,161)SoB LLR Amethyst: Earned 1,000,000 credits (1,376,215)SR5 LLR Bronze: Earned 10,000 credits (39,698)SGS LLR Bronze: Earned 10,000 credits (18,533)TRP LLR Bronze: Earned 10,000 credits (62,235)Woodall LLR Silver: Earned 100,000 credits (240,222)321 Sieve (suspended) Bronze: Earned 10,000 credits (30,838)PPS Sieve Ruby: Earned 2,000,000 credits (2,509,768)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (16,965)TRP Sieve (suspended) Bronze: Earned 10,000 credits (14,492)AP 26/27 Ruby: Earned 2,000,000 credits (4,432,423)GFN Sapphire: Earned 20,000,000 credits (36,621,124)WW Silver: Earned 100,000 credits (484,000)
Message 150232 - Posted: 28 Apr 2021 | 18:17:02 UTC - in response to Message 150227.
Last modified: 28 Apr 2021 | 18:17:16 UTC

Does the "LLR2 testing" subproject do multithreading aswell?

Yes, and it's currently recommended (at least until we drop down below n=2M). Application name for app_config.xml is llr2

Thanks, shall I use 3 threads as per the MEGA?

And is this right?


<app_config> <app_version> <app_name>llr2</app_name> <cmdline>-t 3</cmdline> <avg_ncpus>3</avg_ncpus> </app_version> </app_config>

stream
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Joined: 1 Mar 14
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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 150235 - Posted: 28 Apr 2021 | 20:23:17 UTC - in response to Message 150232.

Thanks, shall I use 3 threads as per the MEGA?

It depends on CPU. This is a Proth test and it scales well, so Intel is OK with 4 cores. I think that there is no need to go higher - when we finish k=7, tasks will be shorter and multithreading will be less efficient. On Ryzen, number of cores must match chip structure to keep task within single CPU block.

And is this right?

Yes, it's fine. Everything is same for all apps, just change application name.

Peter Hucker
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Joined: 23 Sep 06
Posts: 115
ID: 3541
Credit: 46,730,776
RAC: 6
321 LLR Silver: Earned 100,000 credits (117,162)Cullen LLR Silver: Earned 100,000 credits (199,800)ESP LLR Bronze: Earned 10,000 credits (99,691)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (100,048)PPS LLR Bronze: Earned 10,000 credits (29,800)PSP LLR Silver: Earned 100,000 credits (296,161)SoB LLR Amethyst: Earned 1,000,000 credits (1,376,215)SR5 LLR Bronze: Earned 10,000 credits (39,698)SGS LLR Bronze: Earned 10,000 credits (18,533)TRP LLR Bronze: Earned 10,000 credits (62,235)Woodall LLR Silver: Earned 100,000 credits (240,222)321 Sieve (suspended) Bronze: Earned 10,000 credits (30,838)PPS Sieve Ruby: Earned 2,000,000 credits (2,509,768)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (16,965)TRP Sieve (suspended) Bronze: Earned 10,000 credits (14,492)AP 26/27 Ruby: Earned 2,000,000 credits (4,432,423)GFN Sapphire: Earned 20,000,000 credits (36,621,124)WW Silver: Earned 100,000 credits (484,000)
Message 150237 - Posted: 29 Apr 2021 | 0:18:38 UTC - in response to Message 150235.

Thanks, shall I use 3 threads as per the MEGA?

It depends on CPU. This is a Proth test and it scales well, so Intel is OK with 4 cores. I think that there is no need to go higher - when we finish k=7, tasks will be shorter and multithreading will be less efficient. On Ryzen, number of cores must match chip structure to keep task within single CPU block.

And is this right?

Yes, it's fine. Everything is same for all apps, just change application name.

I can't find Ryzen chip structure anywhere, I've seen it before somewhere. Google is not working! Any mention of "block" gives me water cooling blocks. And structure just gives me general specs and gaming benchmarks. It's a Ryzen 3900XT if anyone knows how they look inside. All my other machines are Intel, from an i5 8600K to an ancient DDR2 thing.

Kellen
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Joined: 10 Jan 18
Posts: 477
ID: 967938
Credit: 1,434,438,304
RAC: 187,057
Discovered 2 mega primes321 LLR Amethyst: Earned 1,000,000 credits (1,078,649)Cullen LLR Turquoise: Earned 5,000,000 credits (8,000,764)ESP LLR Sapphire: Earned 20,000,000 credits (20,001,144)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (6,988,220)PPS LLR Sapphire: Earned 20,000,000 credits (20,000,023)PSP LLR Turquoise: Earned 5,000,000 credits (8,031,857)SoB LLR Sapphire: Earned 20,000,000 credits (20,035,621)SR5 LLR Turquoise: Earned 5,000,000 credits (7,928,261)SGS LLR Sapphire: Earned 20,000,000 credits (20,000,002)TRP LLR Sapphire: Earned 20,000,000 credits (20,000,236)Woodall LLR Sapphire: Earned 20,000,000 credits (20,017,137)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,000,569)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,006,424)PPS Sieve Sapphire: Earned 20,000,000 credits (42,292,566)AP 26/27 Sapphire: Earned 20,000,000 credits (40,001,442)GFN Double Bronze: Earned 100,000,000 credits (120,031,390)WW Sapphire: Earned 20,000,000 credits (40,024,000)PSA Double Amethyst: Earned 1,000,000,000 credits (1,000,000,000)
Message 150238 - Posted: 29 Apr 2021 | 1:16:05 UTC - in response to Message 150237.

Thanks, shall I use 3 threads as per the MEGA?

It depends on CPU. This is a Proth test and it scales well, so Intel is OK with 4 cores. I think that there is no need to go higher - when we finish k=7, tasks will be shorter and multithreading will be less efficient. On Ryzen, number of cores must match chip structure to keep task within single CPU block.

And is this right?

Yes, it's fine. Everything is same for all apps, just change application name.

I can't find Ryzen chip structure anywhere, I've seen it before somewhere. Google is not working! Any mention of "block" gives me water cooling blocks. And structure just gives me general specs and gaming benchmarks. It's a Ryzen 3900XT if anyone knows how they look inside. All my other machines are Intel, from an i5 8600K to an ancient DDR2 thing.


For the 3900XT, your best throughput right now will still be single-threaded. The second best would probably be 3 threads per task; but only if you are using some software like Affinity Watcher or Process Lasso to keep the tasks on adjacent cores in the CPU. The 3900XT can be thought of as 4 separate CPUs with 3 cores each. They can communicate with each other, but relatively slowly, so if you keep the tasks in each mini-CPU (CCX is the proper term in this case), you will see the best performance for multi-threading LLR tasks, as long as you stay under the 16MB cache limit.

Ultimately, for the 3900XT, for the remainder of the 100,000,000+ tasks on LLR2 Testing on Stream's server; single-threaded is your best bet.

Peter Hucker
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Joined: 23 Sep 06
Posts: 115
ID: 3541
Credit: 46,730,776
RAC: 6
321 LLR Silver: Earned 100,000 credits (117,162)Cullen LLR Silver: Earned 100,000 credits (199,800)ESP LLR Bronze: Earned 10,000 credits (99,691)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (100,048)PPS LLR Bronze: Earned 10,000 credits (29,800)PSP LLR Silver: Earned 100,000 credits (296,161)SoB LLR Amethyst: Earned 1,000,000 credits (1,376,215)SR5 LLR Bronze: Earned 10,000 credits (39,698)SGS LLR Bronze: Earned 10,000 credits (18,533)TRP LLR Bronze: Earned 10,000 credits (62,235)Woodall LLR Silver: Earned 100,000 credits (240,222)321 Sieve (suspended) Bronze: Earned 10,000 credits (30,838)PPS Sieve Ruby: Earned 2,000,000 credits (2,509,768)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (16,965)TRP Sieve (suspended) Bronze: Earned 10,000 credits (14,492)AP 26/27 Ruby: Earned 2,000,000 credits (4,432,423)GFN Sapphire: Earned 20,000,000 credits (36,621,124)WW Silver: Earned 100,000 credits (484,000)
Message 150243 - Posted: 29 Apr 2021 | 11:03:26 UTC - in response to Message 150238.
Last modified: 29 Apr 2021 | 11:04:48 UTC

Thanks, shall I use 3 threads as per the MEGA?

It depends on CPU. This is a Proth test and it scales well, so Intel is OK with 4 cores. I think that there is no need to go higher - when we finish k=7, tasks will be shorter and multithreading will be less efficient. On Ryzen, number of cores must match chip structure to keep task within single CPU block.

And is this right?

Yes, it's fine. Everything is same for all apps, just change application name.

I can't find Ryzen chip structure anywhere, I've seen it before somewhere. Google is not working! Any mention of "block" gives me water cooling blocks. And structure just gives me general specs and gaming benchmarks. It's a Ryzen 3900XT if anyone knows how they look inside. All my other machines are Intel, from an i5 8600K to an ancient DDR2 thing.


For the 3900XT, your best throughput right now will still be single-threaded. The second best would probably be 3 threads per task; but only if you are using some software like Affinity Watcher or Process Lasso to keep the tasks on adjacent cores in the CPU. The 3900XT can be thought of as 4 separate CPUs with 3 cores each. They can communicate with each other, but relatively slowly, so if you keep the tasks in each mini-CPU (CCX is the proper term in this case), you will see the best performance for multi-threading LLR tasks, as long as you stay under the 16MB cache limit.

Ultimately, for the 3900XT, for the remainder of the 100,000,000+ tasks on LLR2 Testing on Stream's server; single-threaded is your best bet.

Thanks. Sorry to ask, but can you give me an estimation of what's best for my other machines? They're all Intels. i5 8600K (6 core), Xeon X5650 (6 core + HT) x 2 CPUs per machine, and 3 older ones: N3700 (4 core), Q8400 (4 core), i3 350M (2 core + HT).

Also I'm assuming it's best to turn the HT off?

Do these estimates apply to the MEGA project?

Kellen
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Joined: 10 Jan 18
Posts: 477
ID: 967938
Credit: 1,434,438,304
RAC: 187,057
Discovered 2 mega primes321 LLR Amethyst: Earned 1,000,000 credits (1,078,649)Cullen LLR Turquoise: Earned 5,000,000 credits (8,000,764)ESP LLR Sapphire: Earned 20,000,000 credits (20,001,144)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (6,988,220)PPS LLR Sapphire: Earned 20,000,000 credits (20,000,023)PSP LLR Turquoise: Earned 5,000,000 credits (8,031,857)SoB LLR Sapphire: Earned 20,000,000 credits (20,035,621)SR5 LLR Turquoise: Earned 5,000,000 credits (7,928,261)SGS LLR Sapphire: Earned 20,000,000 credits (20,000,002)TRP LLR Sapphire: Earned 20,000,000 credits (20,000,236)Woodall LLR Sapphire: Earned 20,000,000 credits (20,017,137)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,000,569)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,006,424)PPS Sieve Sapphire: Earned 20,000,000 credits (42,292,566)AP 26/27 Sapphire: Earned 20,000,000 credits (40,001,442)GFN Double Bronze: Earned 100,000,000 credits (120,031,390)WW Sapphire: Earned 20,000,000 credits (40,024,000)PSA Double Amethyst: Earned 1,000,000,000 credits (1,000,000,000)
Message 150244 - Posted: 29 Apr 2021 | 11:55:03 UTC - in response to Message 150243.

Thanks. Sorry to ask, but can you give me an estimation of what's best for my other machines? They're all Intels. i5 8600K (6 core), Xeon X5650 (6 core + HT) x 2 CPUs per machine, and 3 older ones: N3700 (4 core), Q8400 (4 core), i3 350M (2 core + HT).

Also I'm assuming it's best to turn the HT off?

Do these estimates apply to the MEGA project?


I would guess that the i5-8600k and Xeon X5650 would do best running 3 tasks with 2 cores each, and that the N3700, Q8400 and i3-350M would do best running a single task with all cores, due to their smaller cache sizes.

You can turn hyperthreading off in the BIOS if you want, or you can tell BOINC to only use 50% of the CPUs if you leave hyperthreading on. For the dual Xeon system, it will also be important to use a program like Affinity Watcher or Process Lasso to make sure that the tasks are staying on the same CPU.

These estimates might apply to the MEGA project, but LLR2 Testing is well above that point right now in terms of test size, so they might be a bit off, but they'd probably be close.

Enjoy :)

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321 LLR Silver: Earned 100,000 credits (117,162)Cullen LLR Silver: Earned 100,000 credits (199,800)ESP LLR Bronze: Earned 10,000 credits (99,691)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (100,048)PPS LLR Bronze: Earned 10,000 credits (29,800)PSP LLR Silver: Earned 100,000 credits (296,161)SoB LLR Amethyst: Earned 1,000,000 credits (1,376,215)SR5 LLR Bronze: Earned 10,000 credits (39,698)SGS LLR Bronze: Earned 10,000 credits (18,533)TRP LLR Bronze: Earned 10,000 credits (62,235)Woodall LLR Silver: Earned 100,000 credits (240,222)321 Sieve (suspended) Bronze: Earned 10,000 credits (30,838)PPS Sieve Ruby: Earned 2,000,000 credits (2,509,768)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (16,965)TRP Sieve (suspended) Bronze: Earned 10,000 credits (14,492)AP 26/27 Ruby: Earned 2,000,000 credits (4,432,423)GFN Sapphire: Earned 20,000,000 credits (36,621,124)WW Silver: Earned 100,000 credits (484,000)
Message 150246 - Posted: 29 Apr 2021 | 12:05:49 UTC - in response to Message 150244.
Last modified: 29 Apr 2021 | 12:06:54 UTC

I would guess that the i5-8600k and Xeon X5650 would do best running 3 tasks with 2 cores each, and that the N3700, Q8400 and i3-350M would do best running a single task with all cores, due to their smaller cache sizes.

You can turn hyperthreading off in the BIOS if you want, or you can tell BOINC to only use 50% of the CPUs if you leave hyperthreading on. For the dual Xeon system, it will also be important to use a program like Affinity Watcher or Process Lasso to make sure that the tasks are staying on the same CPU.

These estimates might apply to the MEGA project, but LLR2 Testing is well above that point right now in terms of test size, so they might be a bit off, but they'd probably be close.

Enjoy :)

Thanks very much. I run other projects, but I've started concentrating on one at a time (well one for CPU and another for GPU sometimes). Some projects don't care if HT is on, most go faster with HT, but Prime goes slower. So I'll set Boinc to 100% or 50% accordingly when I change project.

I'll take your word for it on the number of cores per task for each computer, as I don't feel like running a load of tests all day!

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Discovered 2 mega primesFound 2 primes in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,012,542)Cullen LLR Turquoise: Earned 5,000,000 credits (5,046,380)ESP LLR Turquoise: Earned 5,000,000 credits (5,188,331)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,106,904)PPS LLR Sapphire: Earned 20,000,000 credits (37,723,941)PSP LLR Turquoise: Earned 5,000,000 credits (5,441,269)SoB LLR Turquoise: Earned 5,000,000 credits (6,532,388)SR5 LLR Jade: Earned 10,000,000 credits (11,099,073)SGS LLR Turquoise: Earned 5,000,000 credits (5,145,376)TRP LLR Turquoise: Earned 5,000,000 credits (7,528,074)Woodall LLR Turquoise: Earned 5,000,000 credits (5,064,748)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,001,504)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,203,942)PPS Sieve Emerald: Earned 50,000,000 credits (55,843,986)AP 26/27 Sapphire: Earned 20,000,000 credits (22,907,638)GFN Sapphire: Earned 20,000,000 credits (33,946,060)WW Double Bronze: Earned 100,000,000 credits (105,712,000)PSA Emerald: Earned 50,000,000 credits (62,438,463)
Message 150258 - Posted: 1 May 2021 | 16:25:36 UTC - in response to Message 150140.


Since T5K site is currently under maintenance and reporting is broken, prime was not reported yet.

Everything seems to be working again.

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 150265 - Posted: 2 May 2021 | 9:42:34 UTC

Two pending primes reported, status page updated - it'll now show links to T5K pages.

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 150353 - Posted: 10 May 2021 | 7:03:49 UTC

Another prime found! What a productive N, 4 primes in just a 350K range! (all previous searches were stopped with just two primes)

Congratulations LCB001!

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Discovered 2 mega primesFound 2 primes in the 2020 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,018,828)Cullen LLR Ruby: Earned 2,000,000 credits (2,029,968)ESP LLR Ruby: Earned 2,000,000 credits (2,417,527)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,052,541)PPS LLR Turquoise: Earned 5,000,000 credits (7,670,229)PSP LLR Ruby: Earned 2,000,000 credits (4,882,320)SoB LLR Ruby: Earned 2,000,000 credits (2,082,753)SR5 LLR Ruby: Earned 2,000,000 credits (2,148,677)SGS LLR Ruby: Earned 2,000,000 credits (2,072,511)TRP LLR Ruby: Earned 2,000,000 credits (4,449,764)Woodall LLR Ruby: Earned 2,000,000 credits (2,016,314)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (4,125,872)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,260,299)PPS Sieve Emerald: Earned 50,000,000 credits (69,405,519)AP 26/27 Turquoise: Earned 5,000,000 credits (8,158,774)GFN Sapphire: Earned 20,000,000 credits (41,387,816)WW Sapphire: Earned 20,000,000 credits (43,040,000)PSA Emerald: Earned 50,000,000 credits (62,919,830)
Message 150361 - Posted: 10 May 2021 | 16:57:18 UTC

Nice one!

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 150645 - Posted: 15 Jun 2021 | 17:55:24 UTC

And we have a fifth prime! Unbelievable! Congratulations PDW, it's a his second prime in GFN-13-MEGA project!

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 150704 - Posted: 27 Jun 2021 | 7:23:31 UTC

Three months passed, no new work will be loaded, cleanup of remaining work started. Currently work is loaded up to bmin+600000, and about 7000 tasks left. Participation is varying, with current rates cleanup may take from 3 to 6 weeks.

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 150806 - Posted: 13 Jul 2021 | 13:25:01 UTC

GFN-13 MEGA is coming to the end. About 4 days of new work left at current rate. After that, only occasional resent tasks will be available.

Next project, GFN-12 MEGA, will be started shortly after the end of PrimeGrid challenge. Exact date will be announced later.

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 150942 - Posted: 24 Jul 2021 | 16:03:15 UTC

We're ready to continue!

GFN-12 MEGA will be started on Monday, July 26, at 09:00 UTC.

It should be not much difference on client side. All GFN-MEGA tasks have same FFT size and same runtime. Multithreading is recommended.

It's not decided yet, but this project can be last in the series. To prove found number as a prime, we must factorize 'b'. In GFN-12 MEGA, 'b' is 245 digits long. Factorizing such number will be quite a challenge. 'b' for GFN-11 MEGA will be two times longer.

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Discovered 8 mega primesFound 12 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 6 primes in the 2019 Tour de PrimesFound 7 primes in the 2020 Tour de PrimesFound 2 mega primes in the 2020 Tour de PrimesFound 1 prime in the 2020 Tour de Primes Mountain StageFound 16 primes in the 2021 Tour de PrimesFound 2 mega primes in the 2021 Tour de PrimesFound 2 primes in the 2021 Tour de Primes Mountain Stage321 LLR Sapphire: Earned 20,000,000 credits (36,740,570)Cullen LLR Emerald: Earned 50,000,000 credits (53,564,865)ESP LLR Sapphire: Earned 20,000,000 credits (41,654,113)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (30,835,287)PPS LLR Double Silver: Earned 200,000,000 credits (211,244,369)PSP LLR Double Bronze: Earned 100,000,000 credits (139,883,108)SoB LLR Emerald: Earned 50,000,000 credits (79,824,750)SR5 LLR Emerald: Earned 50,000,000 credits (63,842,551)SGS LLR Double Bronze: Earned 100,000,000 credits (103,545,862)TPS LLR (retired) Bronze: Earned 10,000 credits (76,266)TRP LLR Emerald: Earned 50,000,000 credits (71,577,312)Woodall LLR Emerald: Earned 50,000,000 credits (51,747,294)321 Sieve (suspended) Double Silver: Earned 200,000,000 credits (205,512,337)Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (35,459,921)Generalized Cullen/Woodall Sieve (suspended) Double Bronze: Earned 100,000,000 credits (103,015,099)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (3,518,458,841)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (11,101,054)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (25,930,215)AP 26/27 Double Silver: Earned 200,000,000 credits (270,755,818)GFN Double Gold: Earned 500,000,000 credits (609,219,168)WW Double Gold: Earned 500,000,000 credits (570,100,000)PSA Double Bronze: Earned 100,000,000 credits (102,293,265)
Message 150945 - Posted: 25 Jul 2021 | 7:38:01 UTC

Looking forward to this next search. Thanks for the announcement stream.
____________

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 151005 - Posted: 3 Aug 2021 | 8:55:45 UTC

Well, it didn't take long...

First GFN-12 MEGA prime found by PDW!

(Not surprised at all, considering that he is #1 in charts :-)

Congratulations!

Additional information will be posted later, when I'll finish factorization of the base and verification of the prime.

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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (529,293)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Jade: Earned 10,000,000 credits (13,183,424)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (2,059,478)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 151016 - Posted: 4 Aug 2021 | 17:14:24 UTC - in response to Message 151005.
Last modified: 4 Aug 2021 | 17:20:48 UTC

It sounds like you believe the factorization of b will finish. /JeppeSN

Edit: I see it is submitted as https://primes.utm.edu/primes/page.php?id=132584.

Edit 2: Also see the b is submitted as http://factordb.com/index.php?id=1100000002638706977.

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 151017 - Posted: 4 Aug 2021 | 19:52:59 UTC - in response to Message 151016.

It sounds like you believe the factorization of b will finish.

May be I was very lucky, but it took only few minutes before two last factors (including huge one) popped out during one of ECM passes of YAFU, and factorization was complete. I didn't believed it first, but tested big number and it was prime. Well, so be it.

I had more problems with few GFN-13-MEGA b's, where nothing was found during ECM and trivial stages, so YAFU used quadratic sieve, which took few hours.

Edit 2: Also see the b is submitted as http://factordb.com/index.php?id=1100000002638706977.

Hmm... Not me.

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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (529,293)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Jade: Earned 10,000,000 credits (13,183,424)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (2,059,478)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 151019 - Posted: 4 Aug 2021 | 20:11:28 UTC - in response to Message 151017.

If we are unlucky and hit a base with two prime factors over 100 decimal digits, then it will be extremely hard to factor. I think it was lucky that second-largest prime factor had no more than 29 digits. /JeppeSN

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Message 151020 - Posted: 4 Aug 2021 | 21:15:39 UTC - in response to Message 151019.

If we are unlucky and hit a base with two prime factors over 100 decimal digits, then it will be extremely hard to factor. I think it was lucky that second-largest prime factor had no more than 29 digits. /JeppeSN

The probabilities can be computed with the Dickman function.
For the largest prime factor we have alpha = log(1617...0401)/log(b) ~ 0.861. The probability that alpha >= 0.861 is about 15%.
For the second largest prime factor we have alpha = log(39002209166721466412601474313)/log(b) ~ 0.136. The probability that alpha <= 0.136 is about 28.4%.

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 151160 - Posted: 15 Aug 2021 | 21:08:36 UTC

And second prime, at bmin+136684, was found by robish. Congratulations with this well-deserved discovery! (Robish is #2 in project stats).

No problem with factorization again - less then two seconds of ECM testing. Are we still extremely lucky?

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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (529,293)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Jade: Earned 10,000,000 credits (13,183,424)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (2,059,478)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 151162 - Posted: 15 Aug 2021 | 22:17:21 UTC - in response to Message 151160.

This time the second-largest prime factor has only 11 digits. /JeppeSN

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321 LLR Ruby: Earned 2,000,000 credits (2,092,823)Cullen LLR Ruby: Earned 2,000,000 credits (2,107,109)ESP LLR Amethyst: Earned 1,000,000 credits (1,445,099)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,180,764)PPS LLR Amethyst: Earned 1,000,000 credits (1,225,852)PSP LLR Ruby: Earned 2,000,000 credits (2,064,832)SoB LLR Amethyst: Earned 1,000,000 credits (1,669,219)SR5 LLR Ruby: Earned 2,000,000 credits (2,065,004)SGS LLR Amethyst: Earned 1,000,000 credits (1,210,259)TRP LLR Ruby: Earned 2,000,000 credits (2,089,856)Woodall LLR Ruby: Earned 2,000,000 credits (2,112,258)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,107,153)PPS Sieve Turquoise: Earned 5,000,000 credits (5,096,952)AP 26/27 Turquoise: Earned 5,000,000 credits (5,061,836)GFN Turquoise: Earned 5,000,000 credits (7,489,336)WW Double Silver: Earned 200,000,000 credits (239,400,000)PSA Amethyst: Earned 1,000,000 credits (1,022,470)
Message 151184 - Posted: 17 Aug 2021 | 15:54:29 UTC - in response to Message 151162.
Last modified: 17 Aug 2021 | 15:55:43 UTC

How long would the primality test take if the base isn't factored?

With numbers that size it isn't unlikely that you're left with a 190 or more digit co-factor that isn't acessible by ECM. And NFS would take more than a year on a single computer.

On the other hand, I think highly composite bases are more likely to produce a prime within a given range. On yet another hand, they could have a lot of small, 10 digit factors and still have a 210 digit co-factor that's very hard to factor.
____________
1281979 * 2^485014 + 1 is prime ... no further hits up to: n = 4,800,000

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 151286 - Posted: 26 Aug 2021 | 4:28:12 UTC

The third prime is found! Congratulations PDW (again :)

Factorization and verification is still in progress. The prime will be visible when done (or considered to be impossible)

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Discovered 15 mega primesEliminated 1 conjecture "k"Found 3 primes in the 2020 Tour de PrimesFound 1 mega prime in the 2020 Tour de PrimesFound 3 primes in the 2021 Tour de PrimesFound 3 mega primes in the 2021 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (21,082,370)Cullen LLR Sapphire: Earned 20,000,000 credits (21,502,868)ESP LLR Sapphire: Earned 20,000,000 credits (24,132,201)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (21,755,048)PPS LLR Double Bronze: Earned 100,000,000 credits (101,482,186)PSP LLR Sapphire: Earned 20,000,000 credits (34,973,901)SoB LLR Sapphire: Earned 20,000,000 credits (21,884,358)SR5 LLR Emerald: Earned 50,000,000 credits (51,392,559)SGS LLR Sapphire: Earned 20,000,000 credits (20,157,727)TRP LLR Sapphire: Earned 20,000,000 credits (22,289,188)Woodall LLR Sapphire: Earned 20,000,000 credits (20,560,414)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (50,559,131)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,297,856)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,711,622)PPS Sieve Double Gold: Earned 500,000,000 credits (652,697,901)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (11,707,274)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,316,578)AP 26/27 Double Silver: Earned 200,000,000 credits (213,374,973)GFN Double Gold: Earned 500,000,000 credits (521,168,383)WW Double Gold: Earned 500,000,000 credits (501,784,000)PSA Emerald: Earned 50,000,000 credits (52,054,411)
Message 151338 - Posted: 1 Sep 2021 | 3:43:41 UTC - in response to Message 151005.
Last modified: 1 Sep 2021 | 3:49:35 UTC

NM. I see my answer is in the OP. D'oh!
____________
Reno, NV

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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (529,293)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Jade: Earned 10,000,000 credits (13,183,424)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (2,059,478)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 151366 - Posted: 3 Sep 2021 | 19:47:58 UTC - in response to Message 151286.

The third prime is found! Congratulations PDW (again :)

Factorization and verification is still in progress. The prime will be visible when done (or considered to be impossible)

Over eight days have passed? Maybe we really found a prime whose base is "impossible" to factor sufficiently? /JeppeSN

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Discovered the World's First AP27!!!Discovered 9 mega primesDiscovered 1 AP272018 Tour de Primes largest primeFound 4 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (9,681,253)Cullen LLR Sapphire: Earned 20,000,000 credits (46,679,120)ESP LLR Turquoise: Earned 5,000,000 credits (8,577,288)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (9,950,938)PPS LLR Emerald: Earned 50,000,000 credits (81,462,474)PSP LLR Turquoise: Earned 5,000,000 credits (9,600,575)SoB LLR Sapphire: Earned 20,000,000 credits (36,846,875)SR5 LLR Turquoise: Earned 5,000,000 credits (9,986,029)SGS LLR Turquoise: Earned 5,000,000 credits (5,658,541)TRP LLR Sapphire: Earned 20,000,000 credits (28,889,840)Woodall LLR Turquoise: Earned 5,000,000 credits (5,062,771)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,141,753)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (7,892,369)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,515,338)PPS Sieve Double Gold: Earned 500,000,000 credits (842,736,516)TRP Sieve (suspended) Silver: Earned 100,000 credits (121,416)AP 26/27 Emerald: Earned 50,000,000 credits (93,931,019)GFN Double Ruby: Earned 2,000,000,000 credits (4,570,479,198)WW Emerald: Earned 50,000,000 credits (96,532,000)
Message 151368 - Posted: 3 Sep 2021 | 20:32:07 UTC - in response to Message 151366.

The third prime is found! Congratulations PDW (again :)

Factorization and verification is still in progress. The prime will be visible when done (or considered to be impossible)

Over eight days have passed? Maybe we really found a prime whose base is "impossible" to factor sufficiently? /JeppeSN


I was wondering the same thing 馃
____________
My lucky numbers 10590941048576+1 and 224584605939537911+81292139*23#*n for n=0..26

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 151373 - Posted: 4 Sep 2021 | 9:33:57 UTC - in response to Message 151366.

Over eight days have passed? Maybe we really found a prime whose base is "impossible" to factor sufficiently?


Yes, this beast is hard.

After preliminary factorization and some quick ECM, it ended up with 225-digits composite.

Pavel attacked it with his new ECM factorization program, but no luck yet.

I'm also running it in background using YAFU ECM, it's slow because YAFU is running ECM single-threaded, and I didn't understand is it possible to make it multithreaded or not. Anyway, YAFU (if I understood its output correctly) should reach optimal point for 50-digits factor within next week.
08/25/21 21:35:25 v1.34.5 @ ubuntu18, current ECM pretesting depth: 40.63 08/25/21 21:35:25 v1.34.5 @ ubuntu18, scheduled 4480 curves at B1=11000000 toward target pretesting depth of 69.23 08/28/21 05:40:57 v1.34.5 @ ubuntu18, Finished 4480 curves using Lenstra ECM method on C225 input, B1=11M, B2=gmp-ecm default 08/28/21 05:40:57 v1.34.5 @ ubuntu18, current ECM pretesting depth: 45.73 08/28/21 05:40:57 v1.34.5 @ ubuntu18, scheduled 7553 curves at B1=43000000 toward target pretesting depth of 69.23

As far I understand, on each step it advanced "pretesting depth" by 5 digits and schedules optimal set of curves (choosing new B1 and number of curves) for this point. It seems that even next step of 55 digits will require many weeks on single thread, and target depth of 69 digits is far out of reach.

I don't know how deep Pavel get (and is it applicable to his method or not).

I tried to learn NFS, and have cado-nfs server up and running. Everything is on default settings, using 230-digits profile supplied with cado. Look like I can build a polynomial in reasonable time even with my office computers, but have no idea yet how long sieving phase will take.


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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (529,293)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Jade: Earned 10,000,000 credits (13,183,424)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (2,059,478)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 151375 - Posted: 4 Sep 2021 | 10:50:43 UTC

Exciting.

I think we need to factor at least 33%, so a composite cofactor can have at most ~163 digits (given that the full b is 245 digits). If the current cofactor is 225 digits, we need to shave off about 62 digits.

I guess someone somewhere would know of a way to attack the factorization of a single number with a distributed approach (maybe even BOINC). There have been famous numbers, including those from the RSA challenge, which people have wanted to factor.

/JeppeSN

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Discovered 8 mega primesFound 5 primes in the 2020 Tour de PrimesFound 2 mega primes in the 2020 Tour de PrimesFound 4 primes in the 2021 Tour de PrimesFound 2 mega primes in the 2021 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (20,020,701)Cullen LLR Sapphire: Earned 20,000,000 credits (20,174,451)ESP LLR Sapphire: Earned 20,000,000 credits (23,496,803)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,197,125)PPS LLR Emerald: Earned 50,000,000 credits (61,332,778)PSP LLR Emerald: Earned 50,000,000 credits (51,069,305)SoB LLR Sapphire: Earned 20,000,000 credits (36,150,654)SR5 LLR Sapphire: Earned 20,000,000 credits (20,183,763)SGS LLR Sapphire: Earned 20,000,000 credits (20,482,069)TRP LLR Sapphire: Earned 20,000,000 credits (20,307,419)Woodall LLR Sapphire: Earned 20,000,000 credits (22,371,625)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,380,527)Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (744,531)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,007,004)PPS Sieve Double Gold: Earned 500,000,000 credits (575,271,481)TRP Sieve (suspended) Bronze: Earned 10,000 credits (21,181)AP 26/27 Sapphire: Earned 20,000,000 credits (20,845,708)GFN Double Silver: Earned 200,000,000 credits (482,041,720)WW Double Amethyst: Earned 1,000,000,000 credits (1,329,384,000)
Message 151376 - Posted: 4 Sep 2021 | 11:16:13 UTC - in response to Message 151375.

Exciting.

I think we need to factor at least 33%, so a composite cofactor can have at most ~163 digits (given that the full b is 245 digits). If the current cofactor is 225 digits, we need to shave off about 62 digits.

I guess someone somewhere would know of a way to attack the factorization of a single number with a distributed approach (maybe even BOINC). There have been famous numbers, including those from the RSA challenge, which people have wanted to factor.

/JeppeSN

Isn't this why RSA cryptography works?
Only with sheer brute force you can factorise?

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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (529,293)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Jade: Earned 10,000,000 credits (13,183,424)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (2,059,478)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 151377 - Posted: 4 Sep 2021 | 11:44:20 UTC - in response to Message 151376.


Isn't this why RSA cryptography works?
Only with sheer brute force you can factorise?

Yes, RSA is secure because the semiprimes (public keys) are so huge that nobody knows how to factor them.

For the 225-digit number we ran into here, we do not know if it is a semiprime (has exactly two prime factors) or not. And if it is a semiprime, we do not know if one factor is much much smaller than the other. Therefore, we do not know how hard it will be to break down. For RSA, I guess, once you know how large the key is, you know more or less how hard it will be to factor (assuming you know what factorization tools you possess).

/JeppeSN

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Discovered 8 mega primesFound 5 primes in the 2020 Tour de PrimesFound 2 mega primes in the 2020 Tour de PrimesFound 4 primes in the 2021 Tour de PrimesFound 2 mega primes in the 2021 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (20,020,701)Cullen LLR Sapphire: Earned 20,000,000 credits (20,174,451)ESP LLR Sapphire: Earned 20,000,000 credits (23,496,803)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,197,125)PPS LLR Emerald: Earned 50,000,000 credits (61,332,778)PSP LLR Emerald: Earned 50,000,000 credits (51,069,305)SoB LLR Sapphire: Earned 20,000,000 credits (36,150,654)SR5 LLR Sapphire: Earned 20,000,000 credits (20,183,763)SGS LLR Sapphire: Earned 20,000,000 credits (20,482,069)TRP LLR Sapphire: Earned 20,000,000 credits (20,307,419)Woodall LLR Sapphire: Earned 20,000,000 credits (22,371,625)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,380,527)Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (744,531)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,007,004)PPS Sieve Double Gold: Earned 500,000,000 credits (575,271,481)TRP Sieve (suspended) Bronze: Earned 10,000 credits (21,181)AP 26/27 Sapphire: Earned 20,000,000 credits (20,845,708)GFN Double Silver: Earned 200,000,000 credits (482,041,720)WW Double Amethyst: Earned 1,000,000,000 credits (1,329,384,000)
Message 151379 - Posted: 4 Sep 2021 | 12:13:23 UTC - in response to Message 151377.

And if it is a semiprime, we do not know if one factor is much much smaller than the other. Therefore, we do not know how hard it will be to break down.

/JeppeSN

It must make a difference that semiprimes be nearly the same size for better cryptography purposes?
(Thankyou for your defn of semiprimes - only 2 primes - do the primes need to be only used once? I mean as an example 2 x 3 vs 2 x 2 x 3)

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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (529,293)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Jade: Earned 10,000,000 credits (13,183,424)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (2,059,478)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 151380 - Posted: 4 Sep 2021 | 12:52:20 UTC - in response to Message 151379.

(Thankyou for your defn of semiprimes - only 2 primes - do the primes need to be only used once? I mean as an example 2 x 3 vs 2 x 2 x 3)

The definition says two primes when counted with multiplicity. So 2脳3 and 2脳2 and 3脳3 would all be semiprimes, but 2脳2脳3 and 2脳3脳3 are not since for this purpose they have three prime factors (2, 2, 3; respectively 2, 3, 3).

The semiprimes used in RSA must have distinct prime factors. The two primes should not be extremely close to each other (then people could guess them, starting from the square root of the semiprime).

/JeppeSN

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Discovered 8 mega primesFound 5 primes in the 2020 Tour de PrimesFound 2 mega primes in the 2020 Tour de PrimesFound 4 primes in the 2021 Tour de PrimesFound 2 mega primes in the 2021 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (20,020,701)Cullen LLR Sapphire: Earned 20,000,000 credits (20,174,451)ESP LLR Sapphire: Earned 20,000,000 credits (23,496,803)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,197,125)PPS LLR Emerald: Earned 50,000,000 credits (61,332,778)PSP LLR Emerald: Earned 50,000,000 credits (51,069,305)SoB LLR Sapphire: Earned 20,000,000 credits (36,150,654)SR5 LLR Sapphire: Earned 20,000,000 credits (20,183,763)SGS LLR Sapphire: Earned 20,000,000 credits (20,482,069)TRP LLR Sapphire: Earned 20,000,000 credits (20,307,419)Woodall LLR Sapphire: Earned 20,000,000 credits (22,371,625)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,380,527)Cullen/Woodall Sieve (suspended) Gold: Earned 500,000 credits (744,531)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,007,004)PPS Sieve Double Gold: Earned 500,000,000 credits (575,271,481)TRP Sieve (suspended) Bronze: Earned 10,000 credits (21,181)AP 26/27 Sapphire: Earned 20,000,000 credits (20,845,708)GFN Double Silver: Earned 200,000,000 credits (482,041,720)WW Double Amethyst: Earned 1,000,000,000 credits (1,329,384,000)
Message 151384 - Posted: 4 Sep 2021 | 15:06:05 UTC - in response to Message 151380.

(Thankyou for your defn of semiprimes - only 2 primes - do the primes need to be only used once? I mean as an example 2 x 3 vs 2 x 2 x 3)

The definition says two primes when counted with multiplicity. So 2脳3 and 2脳2 and 3脳3 would all be semiprimes, but 2脳2脳3 and 2脳3脳3 are not since for this purpose they have three prime factors (2, 2, 3; respectively 2, 3, 3).

The semiprimes used in RSA must have distinct prime factors. The two primes should not be extremely close to each other (then people could guess them, starting from the square root of the semiprime).

/JeppeSN

Yes I think I may understand why you wouldn't choose 2 primes close together for RSA.
I need more confirmation as what a semi-prime is.
Right now, I think it would be only 2 primes multiplied together and they can be the same prime? Sorry this probably is dogged stupidity.

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Discovered 2 mega primesFound 2 primes in the 2018 Tour de PrimesFound 4 primes in the 2019 Tour de PrimesFound 3 primes in the 2020 Tour de PrimesFound 1 mega prime in the 2020 Tour de PrimesFound 4 primes in the 2021 Tour de Primes321 LLR Sapphire: Earned 20,000,000 credits (20,764,440)Cullen LLR Sapphire: Earned 20,000,000 credits (20,754,874)ESP LLR Sapphire: Earned 20,000,000 credits (20,453,074)Generalized Cullen/Woodall LLR Sapphire: Earned 20,000,000 credits (20,310,104)PPS LLR Emerald: Earned 50,000,000 credits (51,079,843)PSP LLR Sapphire: Earned 20,000,000 credits (20,571,669)SoB LLR Sapphire: Earned 20,000,000 credits (29,986,876)SR5 LLR Sapphire: Earned 20,000,000 credits (21,257,664)SGS LLR Sapphire: Earned 20,000,000 credits (21,429,807)TRP LLR Sapphire: Earned 20,000,000 credits (20,191,201)Woodall LLR Sapphire: Earned 20,000,000 credits (20,376,385)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (55,630,889)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,178,073)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (56,046,594)PPS Sieve Double Gold: Earned 500,000,000 credits (521,014,891)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Turquoise: Earned 5,000,000 credits (9,468,384)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,076,645)AP 26/27 Double Gold: Earned 500,000,000 credits (500,106,006)GFN Double Silver: Earned 200,000,000 credits (256,908,571)WW Double Silver: Earned 200,000,000 credits (299,940,000)PSA Double Bronze: Earned 100,000,000 credits (126,200,096)
Message 151387 - Posted: 4 Sep 2021 | 17:32:08 UTC - in response to Message 151384.

(Thankyou for your defn of semiprimes - only 2 primes - do the primes need to be only used once? I mean as an example 2 x 3 vs 2 x 2 x 3)

The definition says two primes when counted with multiplicity. So 2脳3 and 2脳2 and 3脳3 would all be semiprimes, but 2脳2脳3 and 2脳3脳3 are not since for this purpose they have three prime factors (2, 2, 3; respectively 2, 3, 3).

The semiprimes used in RSA must have distinct prime factors. The two primes should not be extremely close to each other (then people could guess them, starting from the square root of the semiprime).

/JeppeSN

Yes I think I may understand why you wouldn't choose 2 primes close together for RSA.
I need more confirmation as what a semi-prime is.
Right now, I think it would be only 2 primes multiplied together and they can be the same prime? Sorry this probably is dogged stupidity.


You are correct. Take any two prime numbers, multiply them, and poof! Semiprime.
____________
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Discovered 3 mega primesFound 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2018 Tour de Primes Mountain StageFound 4 primes in the 2019 Tour de PrimesFound 2 primes in the 2019 Tour de Primes Mountain Stage2020 Tour de Primes most Mountain Stage primesFound 3 primes in the 2020 Tour de PrimesFound 2 primes in the 2020 Tour de Primes Mountain StageFound 1 prime in the 2021 Tour de PrimesFound 1 mega prime in the 2021 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,173,611)Cullen LLR Ruby: Earned 2,000,000 credits (2,542,805)ESP LLR Jade: Earned 10,000,000 credits (12,054,435)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,696,208)PPS LLR Emerald: Earned 50,000,000 credits (74,720,046)PSP LLR Sapphire: Earned 20,000,000 credits (23,095,493)SoB LLR Jade: Earned 10,000,000 credits (16,948,839)SR5 LLR Sapphire: Earned 20,000,000 credits (28,654,266)SGS LLR Jade: Earned 10,000,000 credits (15,862,943)TRP LLR Jade: Earned 10,000,000 credits (10,238,249)Woodall LLR Ruby: Earned 2,000,000 credits (2,369,390)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,421,223)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,165,870)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,012,635)PPS Sieve Double Gold: Earned 500,000,000 credits (509,855,089)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (727,064)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,187,678)AP 26/27 Double Bronze: Earned 100,000,000 credits (100,614,098)GFN Double Silver: Earned 200,000,000 credits (292,160,205)WW Double Silver: Earned 200,000,000 credits (247,544,000)PSA Emerald: Earned 50,000,000 credits (52,917,724)
Message 151394 - Posted: 5 Sep 2021 | 14:40:28 UTC

I have several GFN-12 MEGA Prime task results that won't upload. A batch from 20 August has been stuck for almost a week. I tried crunching a new batch yesterday to "flush them through," but now those results are stuck too:

15756 PRIVATE GFN SERVER 9/5/2021 4:32:06 PM Started upload of llr2_1717963_qyn8br_765778086_r1399372121_7 15757 PRIVATE GFN SERVER 9/5/2021 4:32:06 PM Started upload of llr2_1717963_qyn8br_765778086_r1399372121_8 15758 PRIVATE GFN SERVER 9/5/2021 4:32:07 PM Project communication failed: attempting access to reference site 15759 PRIVATE GFN SERVER 9/5/2021 4:32:07 PM Temporarily failed upload of llr2_1717963_qyn8br_765778086_r1399372121_7: transient HTTP error 15760 PRIVATE GFN SERVER 9/5/2021 4:32:07 PM Backing off 05:00:33 on upload of llr2_1717963_qyn8br_765778086_r1399372121_7


Any clue as to why I can connect to download WUs, but not connect to upload results?
____________

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"We must know, we shall know."
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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 151400 - Posted: 5 Sep 2021 | 21:26:12 UTC - in response to Message 151394.
Last modified: 5 Sep 2021 | 21:27:19 UTC

I have several GFN-12 MEGA Prime task results that won't upload. A batch from 20 August has been stuck for almost a week. I tried crunching a new batch yesterday to "flush them through," but now those results are stuck too:

15756 PRIVATE GFN SERVER 9/5/2021 4:32:06 PM Started upload of llr2_1717963_qyn8br_765778086_r1399372121_7 15757 PRIVATE GFN SERVER 9/5/2021 4:32:06 PM Started upload of llr2_1717963_qyn8br_765778086_r1399372121_8 15758 PRIVATE GFN SERVER 9/5/2021 4:32:07 PM Project communication failed: attempting access to reference site 15759 PRIVATE GFN SERVER 9/5/2021 4:32:07 PM Temporarily failed upload of llr2_1717963_qyn8br_765778086_r1399372121_7: transient HTTP error 15760 PRIVATE GFN SERVER 9/5/2021 4:32:07 PM Backing off 05:00:33 on upload of llr2_1717963_qyn8br_765778086_r1399372121_7



[Sun Sep 05 08:08:57.054231 2021] [fcgid:warn] [pid 29890:tid 139938397898496] (104)Connection reset by peer: [client 79.140.###.###:18873] mod_fcgid: can't get data from http client


It seems to be a problem in Internet link between you and me only - there are only about 10 similar error messages in Apache logs per 24 hours. There were few talks about similar problems in previous threads (starting from GFN16-MEGA search). Their reasons were very complicated errors in ISP equipment configuration or even glitches in interconnections between different countries. Unless something was changed in your home or office router recently, not much can be done on user side. A common confirmed reason was too small MTU somewhere on the path between client and my server, and blocking of ICMP packets (they're required for automatic MTU selection, but some ISP/routers/antivirus could block them for absurd "security").

After that discussion, I reduced MSS (maximum TCP packet size on my server) to 1400 to let data pass through shortened MTU, it fixed all problems at that time. Now I reduced MSS to 1300, lets see if it fixes the problem. If yes, something in really broken on the way.

Any clue as to why I can connect to download WUs, but not connect to upload results?


These types of configuration errors are often missed by ISP / office sysadmins because most users are only downloading pages. During web browsing, they're rarely sending something large then a kilobyte. The problem exposes when user is uploading more then 1.5 Kbytes of data in one piece. Such packet will never reach the server, and server gives up with timeout or other error.

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Discovered 3 mega primesFound 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2018 Tour de Primes Mountain StageFound 4 primes in the 2019 Tour de PrimesFound 2 primes in the 2019 Tour de Primes Mountain Stage2020 Tour de Primes most Mountain Stage primesFound 3 primes in the 2020 Tour de PrimesFound 2 primes in the 2020 Tour de Primes Mountain StageFound 1 prime in the 2021 Tour de PrimesFound 1 mega prime in the 2021 Tour de Primes321 LLR Turquoise: Earned 5,000,000 credits (5,173,611)Cullen LLR Ruby: Earned 2,000,000 credits (2,542,805)ESP LLR Jade: Earned 10,000,000 credits (12,054,435)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,696,208)PPS LLR Emerald: Earned 50,000,000 credits (74,720,046)PSP LLR Sapphire: Earned 20,000,000 credits (23,095,493)SoB LLR Jade: Earned 10,000,000 credits (16,948,839)SR5 LLR Sapphire: Earned 20,000,000 credits (28,654,266)SGS LLR Jade: Earned 10,000,000 credits (15,862,943)TRP LLR Jade: Earned 10,000,000 credits (10,238,249)Woodall LLR Ruby: Earned 2,000,000 credits (2,369,390)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,421,223)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,165,870)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,012,635)PPS Sieve Double Gold: Earned 500,000,000 credits (509,855,089)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (727,064)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,187,678)AP 26/27 Double Bronze: Earned 100,000,000 credits (100,614,098)GFN Double Silver: Earned 200,000,000 credits (292,160,205)WW Double Silver: Earned 200,000,000 credits (247,544,000)PSA Emerald: Earned 50,000,000 credits (52,917,724)
Message 151408 - Posted: 6 Sep 2021 | 11:48:23 UTC - in response to Message 151400.

I have several GFN-12 MEGA Prime task results that won't upload. A batch from 20 August has been stuck for almost a week. I tried crunching a new batch yesterday to "flush them through," but now those results are stuck too:

15756 PRIVATE GFN SERVER 9/5/2021 4:32:06 PM Started upload of llr2_1717963_qyn8br_765778086_r1399372121_7 15757 PRIVATE GFN SERVER 9/5/2021 4:32:06 PM Started upload of llr2_1717963_qyn8br_765778086_r1399372121_8 15758 PRIVATE GFN SERVER 9/5/2021 4:32:07 PM Project communication failed: attempting access to reference site 15759 PRIVATE GFN SERVER 9/5/2021 4:32:07 PM Temporarily failed upload of llr2_1717963_qyn8br_765778086_r1399372121_7: transient HTTP error 15760 PRIVATE GFN SERVER 9/5/2021 4:32:07 PM Backing off 05:00:33 on upload of llr2_1717963_qyn8br_765778086_r1399372121_7



[Sun Sep 05 08:08:57.054231 2021] [fcgid:warn] [pid 29890:tid 139938397898496] (104)Connection reset by peer: [client 79.140.###.###:18873] mod_fcgid: can't get data from http client


It seems to be a problem in Internet link between you and me only - there are only about 10 similar error messages in Apache logs per 24 hours. There were few talks about similar problems in previous threads (starting from GFN16-MEGA search). Their reasons were very complicated errors in ISP equipment configuration or even glitches in interconnections between different countries. Unless something was changed in your home or office router recently, not much can be done on user side. A common confirmed reason was too small MTU somewhere on the path between client and my server, and blocking of ICMP packets (they're required for automatic MTU selection, but some ISP/routers/antivirus could block them for absurd "security").

After that discussion, I reduced MSS (maximum TCP packet size on my server) to 1400 to let data pass through shortened MTU, it fixed all problems at that time. Now I reduced MSS to 1300, lets see if it fixes the problem. If yes, something in really broken on the way.

Any clue as to why I can connect to download WUs, but not connect to upload results?


These types of configuration errors are often missed by ISP / office sysadmins because most users are only downloading pages. During web browsing, they're rarely sending something large then a kilobyte. The problem exposes when user is uploading more then 1.5 Kbytes of data in one piece. Such packet will never reach the server, and server gives up with timeout or other error.


I am sorry, it turns out I was the problem.

I manage this host through BoincTasks, but I decided to remote into the actual host so that I could try rebooting it. There I saw that Symantec Network Threat Protection was actually blocking the traffic every time BOINC tried to upload the results to the server...

I disabled Symantec, and the WUs all uploaded OK.

____________

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"Wir m眉ssen wissen. Wir werden wissen."
"We must know, we shall know."
- David Hilbert, 1930

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 151457 - Posted: 10 Sep 2021 | 20:59:10 UTC

Fourth prime found by Dr Who Fan! Congratulations! Incredible luck, considering that he did only 93 tasks at the moment I'm writing this post.

The base resisted quick factorization, but I'll do more ECM testing at least for a week.

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321 LLR Silver: Earned 100,000 credits (186,168)Cullen LLR Silver: Earned 100,000 credits (161,492)ESP LLR Silver: Earned 100,000 credits (102,526)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (115,730)PPS LLR Amethyst: Earned 1,000,000 credits (1,421,565)PSP LLR Silver: Earned 100,000 credits (132,546)SoB LLR Silver: Earned 100,000 credits (433,700)SR5 LLR Silver: Earned 100,000 credits (114,016)SGS LLR Silver: Earned 100,000 credits (162,863)TRP LLR Silver: Earned 100,000 credits (100,020)Woodall LLR Silver: Earned 100,000 credits (103,446)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,006,012)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,740,001)PPS Sieve Turquoise: Earned 5,000,000 credits (5,066,749)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (119,708)TRP Sieve (suspended) Gold: Earned 500,000 credits (527,925)AP 26/27 Gold: Earned 500,000 credits (849,112)GFN Amethyst: Earned 1,000,000 credits (1,529,592)WW Gold: Earned 500,000 credits (984,000)
Message 151460 - Posted: 11 Sep 2021 | 1:43:34 UTC - in response to Message 151457.

Fourth prime found by Dr Who Fan! Congratulations! Incredible luck, considering that he did only 93 tasks at the moment I'm writing this post.

The base resisted quick factorization, but I'll do more ECM testing at least for a week.

Thanks! Must be my lucky day today :)
____________

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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (529,293)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Jade: Earned 10,000,000 credits (13,183,424)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (2,059,478)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 151461 - Posted: 11 Sep 2021 | 6:02:23 UTC - in response to Message 151457.

Nice. Not sure what I like more: bases that can be factored, or bases that cannot be factored. /JeppeSN

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321 LLR Ruby: Earned 2,000,000 credits (2,092,823)Cullen LLR Ruby: Earned 2,000,000 credits (2,107,109)ESP LLR Amethyst: Earned 1,000,000 credits (1,445,099)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,180,764)PPS LLR Amethyst: Earned 1,000,000 credits (1,225,852)PSP LLR Ruby: Earned 2,000,000 credits (2,064,832)SoB LLR Amethyst: Earned 1,000,000 credits (1,669,219)SR5 LLR Ruby: Earned 2,000,000 credits (2,065,004)SGS LLR Amethyst: Earned 1,000,000 credits (1,210,259)TRP LLR Ruby: Earned 2,000,000 credits (2,089,856)Woodall LLR Ruby: Earned 2,000,000 credits (2,112,258)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,107,153)PPS Sieve Turquoise: Earned 5,000,000 credits (5,096,952)AP 26/27 Turquoise: Earned 5,000,000 credits (5,061,836)GFN Turquoise: Earned 5,000,000 credits (7,489,336)WW Double Silver: Earned 200,000,000 credits (239,400,000)PSA Amethyst: Earned 1,000,000 credits (1,022,470)
Message 151468 - Posted: 12 Sep 2021 | 6:21:13 UTC - in response to Message 151373.
Last modified: 12 Sep 2021 | 6:27:31 UTC

I'm also running it in background using YAFU ECM, it's slow because YAFU is running ECM single-threaded, and I didn't understand is it possible to make it multithreaded or not. Anyway, YAFU (if I understood its output correctly) should reach optimal point for 50-digits factor within next week.
The -threads n argument does that, where n is number of threads. You can also add that in yafu.ini.

I tried to learn NFS, and have cado-nfs server up and running. Everything is on default settings, using 230-digits profile supplied with cado. Look like I can build a polynomial in reasonable time even with my office computers, but have no idea yet how long sieving phase will take.
It's impossible on a single computer. My i9-10900 10 cores takes about 14 days for sieving for a 167 digits number. And sieving time doubles approximately every 5 digits. RSA-250 was only recently factored by a team with access to university level computing power.

230 digits is really a lot for amateurs, even with distributed NFS as NFS@home offers. I don't know if they ever did something that big. The problem is also in the linear algebra part which cannot efficiently be distributed and requires a lot of memory. It alone might take weeks even on specialized equipment.

You could post the problem at the mersenneforum Factoring subforum, there are a lot of knowledgable users there with the ressources to help factoring it. I am pretty sure they's be excited to help with these numbers. You will need someone who is able to set the right parameters for that search as well.
____________
1281979 * 2^485014 + 1 is prime ... no further hits up to: n = 4,800,000

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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (529,293)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Jade: Earned 10,000,000 credits (13,183,424)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (2,059,478)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 151490 - Posted: 12 Sep 2021 | 15:41:35 UTC - in response to Message 151468.

230 digits is really a lot for amateurs,

In the worst case where the second-largest prime factor is huge (can be up to 115 digits), it is hard! But of course the bases b we run into here, might be quite easy; we do not know in advance (unlike the situation where you try to break an RSA key). /JeppeSN

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321 LLR Ruby: Earned 2,000,000 credits (2,092,823)Cullen LLR Ruby: Earned 2,000,000 credits (2,107,109)ESP LLR Amethyst: Earned 1,000,000 credits (1,445,099)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,180,764)PPS LLR Amethyst: Earned 1,000,000 credits (1,225,852)PSP LLR Ruby: Earned 2,000,000 credits (2,064,832)SoB LLR Amethyst: Earned 1,000,000 credits (1,669,219)SR5 LLR Ruby: Earned 2,000,000 credits (2,065,004)SGS LLR Amethyst: Earned 1,000,000 credits (1,210,259)TRP LLR Ruby: Earned 2,000,000 credits (2,089,856)Woodall LLR Ruby: Earned 2,000,000 credits (2,112,258)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,107,153)PPS Sieve Turquoise: Earned 5,000,000 credits (5,096,952)AP 26/27 Turquoise: Earned 5,000,000 credits (5,061,836)GFN Turquoise: Earned 5,000,000 credits (7,489,336)WW Double Silver: Earned 200,000,000 credits (239,400,000)PSA Amethyst: Earned 1,000,000 credits (1,022,470)
Message 151501 - Posted: 13 Sep 2021 | 9:08:56 UTC - in response to Message 151490.

Yes, I meant when ECM was finished without success and NFS is required. You can't do that on your own. There is btw also a distributed project for ECM (yoyo@home).

I'd really go ahead and post those numbers at mersenneforum, they'd surely like to give that a try. Though I'm not sure if some of those numbers are too large anyway.


____________
1281979 * 2^485014 + 1 is prime ... no further hits up to: n = 4,800,000

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Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 151506 - Posted: 13 Sep 2021 | 14:06:34 UTC - in response to Message 151501.

Yes, I meant when ECM was finished without success and NFS is required. You can't do that on your own. There is btw also a distributed project for ECM (yoyo@home).

Yes I see. I read a bit about how difficult RSA-768 factoring was (in particular, an incredible amount of memory required on server for linear algebra part). Our numbers are less then 768 bits but not much, one is C225 and second is C233.

I'd really go ahead and post those numbers at mersenneforum, they'd surely like to give that a try. Though I'm not sure if some of those numbers are too large anyway.

Me and Pavel will try to push ECM up to "optimal point" for 55 digits - either testing 21000 GMP-ECM curves at B1=110M (numbers chosen according to GMP-ECM predictions), either using Pavel's software up to similar testing depth. If nothing will be found, primes will be published and the problem will be open for everybody. First candidate (C225) is already tested up to 50 digits "optimal point" with YAFU, where it gave up and suggested to switch to NFS.
09/11/21 21:22:07 v1.34.5 @ ubuntu18, Finished 7553 curves using Lenstra ECM method on C225 input, B1=43M, B2=gmp-ecm default 09/11/21 21:22:07 v1.34.5 @ ubuntu18, final ECM pretested depth: 50.86

Second candidate (C233) received only minor YAFU ECM (up to 45 digits). I'm playing with Pavel's software on it.

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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (529,293)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (35,236)PPS LLR Jade: Earned 10,000,000 credits (13,183,424)PSP LLR Silver: Earned 100,000 credits (428,457)SoB LLR Silver: Earned 100,000 credits (466,812)SR5 LLR Silver: Earned 100,000 credits (145,419)SGS LLR Silver: Earned 100,000 credits (112,277)TRP LLR Silver: Earned 100,000 credits (342,501)Woodall LLR Silver: Earned 100,000 credits (109,455)321 Sieve (suspended) Silver: Earned 100,000 credits (175,037)PPS Sieve Bronze: Earned 10,000 credits (10,113)AP 26/27 Bronze: Earned 10,000 credits (12,129)GFN Ruby: Earned 2,000,000 credits (2,059,478)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 151509 - Posted: 13 Sep 2021 | 16:41:52 UTC - in response to Message 151506.
Last modified: 13 Sep 2021 | 16:43:32 UTC

Yes, I meant when ECM was finished without success and NFS is required. You can't do that on your own. There is btw also a distributed project for ECM (yoyo@home).

Yes I see. I read a bit about how difficult RSA-768 factoring was (in particular, an incredible amount of memory required on server for linear algebra part). Our numbers are less then 768 bits but not much, one is C225 and second is C233.

I'd really go ahead and post those numbers at mersenneforum, they'd surely like to give that a try. Though I'm not sure if some of those numbers are too large anyway.

Me and Pavel will try to push ECM up to "optimal point" for 55 digits - either testing 21000 GMP-ECM curves at B1=110M (numbers chosen according to GMP-ECM predictions), either using Pavel's software up to similar testing depth. If nothing will be found, primes will be published and the problem will be open for everybody. First candidate (C225) is already tested up to 50 digits "optimal point" with YAFU, where it gave up and suggested to switch to NFS.

Sorry if I am repeating myself, but there is a difference between RSA factoring and factoring of our number, because with RSA one knows in advance that the number consist of exactly two very large primes, whereas with our numbers one knows less.

Can anyone say if that makes a difference for the strategy you would use? Clearly, for an RSA number with 232 digits, you are not really searching for a 45-digit or 50-digits factor.

Also, we do not necessarily need a full factorization of our C225. If it happened to be C225 = P65*P75*P85, say, then it would be sufficient, for our purpose, to find the small factor, i.e. be able to write C225 = P65*C160, and we would have factored over 33% of the original 245-digit b.

However, a 50-digit or 55-digit factor (the ECM limits you mentioned) alone would not suffice, in case the cofactor is still composite :-(

/JeppeSN

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Message 151516 - Posted: 14 Sep 2021 | 7:27:01 UTC - in response to Message 151509.

Sorry if I am repeating myself, but there is a difference between RSA factoring and factoring of our number, because with RSA one knows in advance that the number consist of exactly two very large primes, whereas with our numbers one knows less.

Can anyone say if that makes a difference for the strategy you would use?

I think there is no difference for NFS. It's "all or nothing" method - it'll reveal all factors at once in given time. But resourced required for numbers of our size are too high.

Also, we do not necessarily need a full factorization of our C225. If it happened to be C225 = P65*P75*P85, say, then it would be sufficient, for our purpose, to find the small factor, i.e. be able to write C225 = P65*C160, and we would have factored over 33% of the original 245-digit b.

Correct, but we must be very very lucky to find a P65 with current ECM settings and required computing power also grows exponentially when you're adjusting ECM setting for higher expected number of digits.

However, a 50-digit or 55-digit factor (the ECM limits you mentioned) alone would not suffice, in case the cofactor is still composite :-(

Really, this IS a current strategy - if a factor between 50-55 digits will be found, remaining C170 is a manageable target for NFS.

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321 LLR Amethyst: Earned 1,000,000 credits (1,004,410)Cullen LLR Amethyst: Earned 1,000,000 credits (1,004,515)ESP LLR Amethyst: Earned 1,000,000 credits (1,001,003)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (100,191)PPS LLR Bronze: Earned 10,000 credits (10,036)PSP LLR Jade: Earned 10,000,000 credits (10,019,714)SoB LLR Turquoise: Earned 5,000,000 credits (5,406,580)SR5 LLR Silver: Earned 100,000 credits (100,048)SGS LLR Amethyst: Earned 1,000,000 credits (1,000,074)TRP LLR Amethyst: Earned 1,000,000 credits (1,005,903)Woodall LLR Turquoise: Earned 5,000,000 credits (5,492,312)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,002,724)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,001,059)PPS Sieve Double Amethyst: Earned 1,000,000,000 credits (1,387,338,421)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (10,212)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,004,748)AP 26/27 Double Bronze: Earned 100,000,000 credits (100,678,786)GFN Double Bronze: Earned 100,000,000 credits (100,056,275)WW Double Bronze: Earned 100,000,000 credits (100,000,000)PSA Ruby: Earned 2,000,000 credits (4,106,269)
Message 151588 - Posted: 21 Sep 2021 | 11:20:08 UTC

The server has been unreachable for a couple of hours, any idea when it will be back please ?

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321 LLR Silver: Earned 100,000 credits (186,168)Cullen LLR Silver: Earned 100,000 credits (161,492)ESP LLR Silver: Earned 100,000 credits (102,526)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (115,730)PPS LLR Amethyst: Earned 1,000,000 credits (1,421,565)PSP LLR Silver: Earned 100,000 credits (132,546)SoB LLR Silver: Earned 100,000 credits (433,700)SR5 LLR Silver: Earned 100,000 credits (114,016)SGS LLR Silver: Earned 100,000 credits (162,863)TRP LLR Silver: Earned 100,000 credits (100,020)Woodall LLR Silver: Earned 100,000 credits (103,446)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,006,012)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,740,001)PPS Sieve Turquoise: Earned 5,000,000 credits (5,066,749)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (119,708)TRP Sieve (suspended) Gold: Earned 500,000 credits (527,925)AP 26/27 Gold: Earned 500,000 credits (849,112)GFN Amethyst: Earned 1,000,000 credits (1,529,592)WW Gold: Earned 500,000 credits (984,000)
Message 151589 - Posted: 21 Sep 2021 | 12:25:13 UTC - in response to Message 151588.

Project web site is reachable but just about everything on server status page is RED.
Server status
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stream
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Joined: 1 Mar 14
Posts: 920
ID: 301928
Credit: 513,298,826
RAC: 4,577
Discovered 1 mega primeFound 1 prime in the 2018 Tour de PrimesFound 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesFound 1 prime in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,011,570)Cullen LLR Jade: Earned 10,000,000 credits (10,009,374)ESP LLR Jade: Earned 10,000,000 credits (10,009,221)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (10,012,217)PPS LLR Jade: Earned 10,000,000 credits (16,277,180)PSP LLR Jade: Earned 10,000,000 credits (10,044,081)SoB LLR Jade: Earned 10,000,000 credits (10,064,750)SR5 LLR Jade: Earned 10,000,000 credits (10,002,051)SGS LLR Jade: Earned 10,000,000 credits (10,001,295)TRP LLR Jade: Earned 10,000,000 credits (10,002,411)Woodall LLR Jade: Earned 10,000,000 credits (10,013,921)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,004,228)Generalized Cullen/Woodall Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,047,667)PPS Sieve Sapphire: Earned 20,000,000 credits (20,866,490)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,043,271)TRP Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,015,177)AP 26/27 Sapphire: Earned 20,000,000 credits (20,045,194)GFN Emerald: Earned 50,000,000 credits (55,355,287)WW Sapphire: Earned 20,000,000 credits (20,172,000)PSA Double Silver: Earned 200,000,000 credits (200,301,443)
Message 151592 - Posted: 21 Sep 2021 | 14:16:44 UTC - in response to Message 151589.

The server has been unreachable for a couple of hours, any idea when it will be back please ?

No power in the building for few hours (planned maintenance of city electricity network)

Project web site is reachable but just about everything on server status page is RED.

Boinc was "turned off" before shutdown, it was some delay before I turned it back on (it must be done manually).

Dr Who Fan
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Joined: 26 Sep 06
Posts: 121
ID: 3556
Credit: 16,871,564
RAC: 229
321 LLR Silver: Earned 100,000 credits (186,168)Cullen LLR Silver: Earned 100,000 credits (161,492)ESP LLR Silver: Earned 100,000 credits (102,526)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (115,730)PPS LLR Amethyst: Earned 1,000,000 credits (1,421,565)PSP LLR Silver: Earned 100,000 credits (132,546)SoB LLR Silver: Earned 100,000 credits (433,700)SR5 LLR Silver: Earned 100,000 credits (114,016)SGS LLR Silver: Earned 100,000 credits (162,863)TRP LLR Silver: Earned 100,000 credits (100,020)Woodall LLR Silver: Earned 100,000 credits (103,446)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,006,012)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,740,001)PPS Sieve Turquoise: Earned 5,000,000 credits (5,066,749)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (119,708)TRP Sieve (suspended) Gold: Earned 500,000 credits (527,925)AP 26/27 Gold: Earned 500,000 credits (849,112)GFN Amethyst: Earned 1,000,000 credits (1,529,592)WW Gold: Earned 500,000 credits (984,000)
Message 151593 - Posted: 21 Sep 2021 | 15:46:26 UTC - in response to Message 151592.

stream, Thank for the update. All appears to be alive & well again.

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Message boards : Generalized Fermat Prime Search : GFN-14/13/... MEGA Prime Search on GFN Server

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