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Message boards : Number crunching : Geek Pride Day Challenge

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Profile Michael GutierrezProject donor
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Found 1 prime in the 2019 Tour de PrimesFound 1 prime in the 2020 Tour de PrimesESP LLR Silver: Earned 100,000 credits (398,507)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (604,364)PPS LLR Sapphire: Earned 20,000,000 credits (24,262,178)PSP LLR Amethyst: Earned 1,000,000 credits (1,042,842)SoB LLR Ruby: Earned 2,000,000 credits (2,363,005)SR5 LLR Amethyst: Earned 1,000,000 credits (1,246,270)SGS LLR Gold: Earned 500,000 credits (668,871)TRP LLR Ruby: Earned 2,000,000 credits (2,193,907)Woodall LLR Amethyst: Earned 1,000,000 credits (1,191,237)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,322,841)Generalized Cullen/Woodall Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,085,904)PPS Sieve Silver: Earned 100,000 credits (360,697)AP 26/27 Silver: Earned 100,000 credits (101,075)GFN Ruby: Earned 2,000,000 credits (3,676,038)WW Turquoise: Earned 5,000,000 credits (5,292,000)PSA Silver: Earned 100,000 credits (108,393)
Message 155479 - Posted: 18 May 2022 | 22:27:04 UTC
Last modified: 19 May 2022 | 16:02:38 UTC

Welcome to the Geek Pride Day Challenge

The third challenge of the 2022 Series will be a 5-day challenge celebrating geeks, freaks, nerds, dorks, dweebs, and "weird" people of all kinds! The challenge will be offered on the GFN-19 subproject, beginning 25 May 18:00 UTC and ending 30 May 18:00 UTC.

May 25: ¡Feliz día del orgullo friki!
Geek Pride Day originated in 2006, when Spanish internet personality Señor Buebo created the Del Día Del Orgullo Friki website. It was originally a celebration of enthusiasts of traditionally-geeky franchises like Star Wars, Marvel Comics and so on. Today, though, when terms like "nerd" and "freak" are still sometimes used as insults, it's important to have a day to remember who we really are: people who are passionate about something! Whatever you love to geek out about, whether it's Minecraft, black holes, or prime numbers, you are part of one of the coolest, biggest, and weirdest communities in the universe!



To participate in the Challenge, please select only the GFN-19 subproject in your PrimeGrid preferences section.

Note: The deadline for some of these WUs is longer than five days, so make sure your computer is able to return the WUs within the challenge time-frame. Only tasks issued AFTER the start time and returned BEFORE the finish time will be counted.


Application Builds

    IMPORTANT: Overclocking -- including factory overclocking -- on Nvidia GPUs is very strongly discouraged. Even if your GPU can run other tasks without difficulty, it may be unable to run GFN tasks when overclocked.

    Supported platforms:
  • Windows: Nvidia GPU (OpenCL): 32 bit, AMD/ATI GPU (OpenCL): 32 bit, CPU: 64 bit, 32 bit
  • Linux: Nvidia GPU (OpenCL): 32 bit, 64 bit, AMD/ATI GPU (OpenCL): 32 bit, 64 bit, CPU: 64 bit, 32 bit
  • Mac: Nvidia GPU (OpenCL): 64 bit, AMD/ATI GPU (OpenCL): 64 bit, CPU: 64 bit, 32 bit




A Cautionary Reminder

    ATTENTION: The primality programs Genefer (for CPUs) and GeneferOCL (for GPUs) are computationally intensive; so, it is vital to have a stable system with good cooling. It does not tolerate "even the slightest of errors." Please see this post for more details on how you can "stress test" your CPU, and please see this post for tips on running GFN on your GPU successfully.

    As with all number crunching, excessive heat can potentially cause permanent hardware failure. Please ensure your cooling system is sufficient.

    GFN-19 WU's are currently averaging 40 hours on CPU (on one core) and 2 hours on GPU.
    For a general idea of how your GPU stacks up, you can have a look at the fastest GPUs list.

    If your CPU is highly overclocked, please consider "stress testing" it. Overclocking your GPU is not recommended at all for GeneferOCL. Sieving is an excellent alternative for computers that are not able to run Genefer. :)

    Please, please, please make sure your machines are up to the task.



Time zone converter:


    The World Clock - Time Zone Converter

    NOTE: The countdown clock on the front page uses the host computer time. Therefore, if your computer time is off, so will the countdown clock. For precise timing, use the UTC Time in the data section to the left of the countdown clock.



Scoring information


    Scores will be kept for individuals and teams. Only work units issued AFTER May 25th 18:00 UTC and received BEFORE May 30th 18:00 UTC will be considered for credit.



At the Conclusion of the Challenge


    We kindly ask users "moving on" to ABORT their WU's instead of DETACHING, RESETTING, or PAUSING.

    ABORTING WU's alows them to be recycled immediately; thus a much faster "clean up" to the end of a challenge. DETACHING, RESETTING, and PAUSING WU's causes them to remain in limbo until they EXPIRE. Therefore, we must wait until WU's expire to send them out to be completed.

    Please consider either completing what's in the queue or ABORTING them. Thank you. :)



More information on Generalized Fermat Numbers and the Genefer program



Best of Luck to everyone!
____________

Time flies like an arrow. Fruit flies like a banana.

Profile JeppeSNProject donor
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Joined: 5 Apr 14
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Credit: 40,344,046
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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (593,283)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (112,799)PPS LLR Jade: Earned 10,000,000 credits (15,614,370)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 (4,181,260)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 155482 - Posted: 19 May 2022 | 6:11:30 UTC

Any new GFN-19 would come in on Top 60 of largest known primes.

Currently known and verified GFN-19 can be seen on
https://primes.utm.edu/primes/search.php?Description=%25%5E524288%2B1%24&Style=HTML
and
https://primes.utm.edu/top20/page.php?id=12.

Unusually many of them were found in 2018-2019. It will be two years since the last find, during the challenge.

/JeppeSN

Yves Gallot
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GFN Double Silver: Earned 200,000,000 credits (305,166,630)
Message 155484 - Posted: 19 May 2022 | 10:49:42 UTC

Here is some information on multi-threading.
The allocated data size is 10 MB.
On processors with two memory channels, the throughput is generally optimal if the data size of all tasks is lower than the L3 cache size. For example, i7-11700K: L3 = 16 MB => 1 task; i7-12700K: L3 = 25 MB => 1 or 2 tasks; Ryzen 5950X: L3 = 2 x 32 MB => 6 tasks or less.
If the L3 cache size is below 10 MB, hyper-threading may increase the speed of genefer because two threads per core hide the memory latency.
Processors with four memory channels can be more efficient if the data size is greater than the L3 cache size.
On Ryzen processors with two CCX, it is recommanded that the affinity of genefer threads is set (see http://www.primegrid.com/forum_thread.php?id=9905).

Profile JeppeSNProject donor
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Joined: 5 Apr 14
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ID: 306875
Credit: 40,344,046
RAC: 9,856
Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (593,283)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (112,799)PPS LLR Jade: Earned 10,000,000 credits (15,614,370)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 (4,181,260)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 155504 - Posted: 20 May 2022 | 14:59:31 UTC

An early GFN-19: 4896418^524288 + 1. /JeppeSN

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Discovered 10 mega primesFound 16 primes in the 2018 Tour de PrimesFound 1 prime in the 2018 Tour de Primes Mountain StageFound 15 primes in the 2019 Tour de PrimesFound 1 mega prime in the 2019 Tour de PrimesFound 22 primes in the 2020 Tour de PrimesFound 1 mega prime in the 2020 Tour de PrimesFound 17 primes in the 2022 Tour de PrimesFound 4 mega primes in the 2022 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (12,351,374)Cullen LLR Ruby: Earned 2,000,000 credits (3,663,353)ESP LLR Turquoise: Earned 5,000,000 credits (7,488,518)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (7,196,629)PPS LLR Emerald: Earned 50,000,000 credits (74,389,804)PSP LLR Jade: Earned 10,000,000 credits (12,245,601)SoB LLR Jade: Earned 10,000,000 credits (17,010,038)SR5 LLR Ruby: Earned 2,000,000 credits (2,914,257)SGS LLR Ruby: Earned 2,000,000 credits (3,190,607)TRP LLR Turquoise: Earned 5,000,000 credits (8,091,782)Woodall LLR Ruby: Earned 2,000,000 credits (3,833,516)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,172,809)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (13,345,448)PPS Sieve Double Silver: Earned 200,000,000 credits (269,562,015)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (164,235)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,142,550)AP 26/27 Emerald: Earned 50,000,000 credits (67,291,692)GFN Double Gold: Earned 500,000,000 credits (527,667,875)WW Jade: Earned 10,000,000 credits (14,796,000)PSA Amethyst: Earned 1,000,000 credits (1,142,791)
Message 155526 - Posted: 21 May 2022 | 22:51:27 UTC - in response to Message 155504.

An early GFN-19: 4896418^524288 + 1. /JeppeSN

NICE!

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Joined: 5 Apr 14
Posts: 1677
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Credit: 40,344,046
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Found 1 prime in the 2020 Tour de Primes321 LLR Gold: Earned 500,000 credits (593,283)Cullen LLR Gold: Earned 500,000 credits (611,298)ESP LLR Silver: Earned 100,000 credits (174,818)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (112,799)PPS LLR Jade: Earned 10,000,000 credits (15,614,370)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 (4,181,260)WW Turquoise: Earned 5,000,000 credits (9,640,000)PSA Turquoise: Earned 5,000,000 credits (7,614,290)
Message 155546 - Posted: 22 May 2022 | 12:43:13 UTC - in response to Message 155526.

So we did not quite reach the two-years mark before another one was found. /JeppeSN

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Discovered 62 mega primesEliminated 3 conjecture "k"sFound 4 primes in the 2018 Tour de PrimesFound 1 mega prime in the 2018 Tour de PrimesFound 4 primes in the 2019 Tour de PrimesFound 2 mega primes in the 2019 Tour de PrimesFound 1 prime in the 2019 Tour de Primes Mountain StageFound 2 primes in the 2020 Tour de PrimesFound 1 mega prime in the 2020 Tour de PrimesFound 4 primes in the 2021 Tour de PrimesFound 2 mega primes in the 2021 Tour de PrimesFound 2 primes in the 2022 Tour de PrimesFound 2 mega primes in the 2022 Tour de Primes321 LLR Double Bronze: Earned 100,000,000 credits (100,400,495)Cullen LLR Emerald: Earned 50,000,000 credits (67,814,375)ESP LLR Emerald: Earned 50,000,000 credits (73,880,409)Generalized Cullen/Woodall LLR Emerald: Earned 50,000,000 credits (66,597,607)PPS LLR Double Silver: Earned 200,000,000 credits (455,944,962)PSP LLR Double Bronze: Earned 100,000,000 credits (100,970,333)SoB LLR Double Bronze: Earned 100,000,000 credits (102,624,508)SR5 LLR Double Bronze: Earned 100,000,000 credits (102,395,858)SGS LLR Emerald: Earned 50,000,000 credits (54,295,707)TPS LLR (retired) Bronze: Earned 10,000 credits (61,785)TRP LLR Double Bronze: Earned 100,000,000 credits (102,088,428)Woodall LLR Emerald: Earned 50,000,000 credits (50,544,668)321 Sieve (suspended) Emerald: Earned 50,000,000 credits (63,039,849)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,685,309)Generalized Cullen/Woodall Sieve (suspended) Emerald: Earned 50,000,000 credits (53,324,439)PPS Sieve Double Ruby: Earned 2,000,000,000 credits (4,043,643,065)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Sapphire: Earned 20,000,000 credits (20,057,785)TRP Sieve (suspended) Emerald: Earned 50,000,000 credits (50,146,560)AP 26/27 Double Gold: Earned 500,000,000 credits (504,799,060)GFN Double Ruby: Earned 2,000,000,000 credits (2,866,849,517)WW Double Ruby: Earned 2,000,000,000 credits (2,546,700,000)PSA Double Silver: Earned 200,000,000 credits (226,683,337)
Message 155559 - Posted: 22 May 2022 | 16:45:01 UTC - in response to Message 155546.

The last one I found: 2020-05-29 07:52:25 UTC

Quite close to two years.
____________
DeleteNull

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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 Primes321 LLR Ruby: Earned 2,000,000 credits (2,007,333)Cullen LLR Ruby: Earned 2,000,000 credits (2,022,035)ESP LLR Ruby: Earned 2,000,000 credits (2,043,823)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,004,688)PPS LLR Jade: Earned 10,000,000 credits (19,244,311)PSP LLR Ruby: Earned 2,000,000 credits (3,887,628)SoB LLR Jade: Earned 10,000,000 credits (10,080,983)SR5 LLR Amethyst: Earned 1,000,000 credits (1,038,745)SGS LLR Amethyst: Earned 1,000,000 credits (1,185,792)TRP LLR Ruby: Earned 2,000,000 credits (2,179,545)Woodall LLR Ruby: Earned 2,000,000 credits (2,000,471)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,035,186)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,002,647)PPS Sieve Sapphire: Earned 20,000,000 credits (46,223,152)TRP Sieve (suspended) Silver: Earned 100,000 credits (156,305)AP 26/27 Turquoise: Earned 5,000,000 credits (5,866,393)GFN Double Bronze: Earned 100,000,000 credits (144,769,514)WW Emerald: Earned 50,000,000 credits (81,880,000)
Message 155560 - Posted: 22 May 2022 | 18:33:34 UTC - in response to Message 155484.

Here is some information on multi-threading.

Is this about multi-threading or just about the number of tasks?
____________
Greetings, Jens

1461*2^3373383+1

Yves Gallot
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Joined: 19 Aug 12
Posts: 700
ID: 164101
Credit: 305,166,630
RAC: 523
GFN Double Silver: Earned 200,000,000 credits (305,166,630)
Message 155562 - Posted: 22 May 2022 | 22:00:49 UTC - in response to Message 155560.

Here is some information on multi-threading.

Is this about multi-threading or just about the number of tasks?

??? Both: number of tasks x number of threads = number of cores.

Profile gemini8Project donor
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Joined: 2 Jan 16
Posts: 106
ID: 434794
Credit: 333,628,705
RAC: 338,472
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 Primes321 LLR Ruby: Earned 2,000,000 credits (2,007,333)Cullen LLR Ruby: Earned 2,000,000 credits (2,022,035)ESP LLR Ruby: Earned 2,000,000 credits (2,043,823)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,004,688)PPS LLR Jade: Earned 10,000,000 credits (19,244,311)PSP LLR Ruby: Earned 2,000,000 credits (3,887,628)SoB LLR Jade: Earned 10,000,000 credits (10,080,983)SR5 LLR Amethyst: Earned 1,000,000 credits (1,038,745)SGS LLR Amethyst: Earned 1,000,000 credits (1,185,792)TRP LLR Ruby: Earned 2,000,000 credits (2,179,545)Woodall LLR Ruby: Earned 2,000,000 credits (2,000,471)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,035,186)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,002,647)PPS Sieve Sapphire: Earned 20,000,000 credits (46,223,152)TRP Sieve (suspended) Silver: Earned 100,000 credits (156,305)AP 26/27 Turquoise: Earned 5,000,000 credits (5,866,393)GFN Double Bronze: Earned 100,000,000 credits (144,769,514)WW Emerald: Earned 50,000,000 credits (81,880,000)
Message 155568 - Posted: 23 May 2022 | 5:35:44 UTC - in response to Message 155562.

Here is some information on multi-threading.

Is this about multi-threading or just about the number of tasks?

??? Both: number of tasks x number of threads = number of cores.

I thought only GFN-21 could be multi-threaded.
____________
Greetings, Jens

1461*2^3373383+1

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Message boards : Number crunching : Geek Pride Day Challenge

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