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Message boards : Number crunching : Martin Gardner's Birthday Challenge

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Profile Michael GutierrezProject donor
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Joined: 21 Mar 17
Posts: 195
ID: 764476
Credit: 43,163,942
RAC: 13,097
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 (1,085,552)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 (256,196)AP 26/27 Silver: Earned 100,000 credits (101,075)GFN Ruby: Earned 2,000,000 credits (3,676,038)WW Ruby: Earned 2,000,000 credits (2,748,000)PSA Silver: Earned 100,000 credits (108,393)
Message 151803 - Posted: 15 Oct 2021 | 22:34:01 UTC
Last modified: 16 Oct 2021 | 18:22:02 UTC

Welcome to Martin Gardner's Birthday Challenge

The seventh challenge of the 2021 Series will be a 7-day challenge in celebration of the 107th (prime number!) birthday of beloved American science communicator, Martin Gardner. The challenge will be offered on the GCW-LLR application, beginning 21 October 00:00 UTC and ending 28 October 00:00 UTC.

October 21 is the anniversary of Martin Gardner's birth. Gardner (1914-2010) is a legend in recreational (and professional) mathematics circles. Although he had little mathematical training, his 1956-1981 Scientific American column "Mathematical Games" has had a huge impact on the way people view math. In a Science Talk podcast shortly after Gardner's death, Douglas Hofstadter, author of the popular math book "Gödel, Escher, Bach", said that for himself and many others, "Scientific American was just the wrapping for Martin Gardner's column." (link)

"No branch of number theory is more saturated with mystery and elegance than the study of prime numbers: those exasperating, unruly integers that refuse to be divided evenly by any integers except themselves and 1." -Martin Gardner, Patterns and Primes

To participate in the Challenge, please select only the Generalized Cullen/Woodall Prime Search LLR (GCW) project in your PrimeGrid preferences section.

Note on LLR2 tasks: LLR2 has eliminated the need for a full doublecheck task on each workunit, but has replaced it with a short verification task. Expect to receive a few tasks about 1% of normal length.

Application builds are available for Linux 32 and 64 bit, Windows 32 and 64 bit and MacIntel. Intel and recent AMD CPUs with FMA3 capabilities (Haswell or better for Intel, Zen-2 or better for AMD) will have a very large advantage, and Intel CPUs with dual AVX-512 (certain recent Intel Skylake-X and Xeon CPUs) will be the fastest.

Note that LLR is running the latest AVX-512 version of LLR which takes full advantage of the features of these newer CPUs. It's faster than the previous LLR app and draws more power and produces more heat, especially if they're highly overclocked. If you have certain recent Intel Skylake-X and Xeon CPUs, especially if it's overclocked or has overclocked memory, and haven't run the new AVX-512 LLR before, we strongly suggest running it before the challenge while you are monitoring the temperatures.

This app uses a lot of memory. It requires about 1.5 GB of swap space / virtual memory, and 750 MB of physical memory.
If you are using Digital Ocean or TheScience.cloud 3-core/1GB droplets, you can only run one task at a time.

Multi-threading is supported and IS recommended. (GCW tasks on one CPU core will take 6-7 days on fast/newer computers and 2 weeks+ on slower/older computers.)

Those looking to maximize their computer's performance during this challenge, or when running LLR in general, may find this information useful.


  • Your mileage may vary. Before the challenge starts, take some time and experiment and see what works best on your computer.
  • If you have a CPU with hyperthreading or SMT, either turn off this feature in the BIOS, or set BOINC to use 50% of the processors.

    • If you're using a GPU for other tasks, it may be beneficial to leave hyperthreading on in the BIOS and instead tell BOINC to use 50% of the CPU's. This will allow one of the hyperthreads to service the GPU.


  • The new multi-threading system is now live. Click here to set the maximum number of threads. This will allow you to select multi-threading from the project preferences web page. No more app_config.xml. It works like this:

    • In the preferences selection, there are selections for "max jobs" and "max cpus", similar to the settings in app_config.
    • Unlike app_config, these two settings apply to ALL apps. You can't chose 1 thread for SGS and 4 for SoB. When you change apps, you need to change your multithreading settings if you want to run a different number of threads.
    • There will be individual settings for each venue (location).
    • This will eliminate the problem of BOINC downloading 1 task for every core.
    • The hyperthreading control isn't possible at this time.
    • The "max cpus" control will only apply to LLR apps. The "max jobs" control applies to all apps.


  • If you want to continue to use app_config.xml for LLR tasks, you need to change it if you want it to work. Please see this message for more information.
  • Some people have observed that when using multithreaded LLR, hyperthreading is actually beneficial. We encourage you to experiment and see what works best for you.



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 at the very top, above the countdown clock.

Scoring Information

Scores will be kept for individuals and teams. Only tasks issued AFTER 21st October 2021 00:00 UTC and received BEFORE 28th October 2021 00:00 UTC will be considered for credit. We will be using the same scoring method as we currently use for BOINC credits. A quorum of 2 is NOT needed to award Challenge score - i.e. no double checker. Therefore, each returned result will earn a Challenge score. Please note that if the result is eventually declared invalid, the score will be removed.

At the Conclusion of the Challenge

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

    ABORTING tasks allows them to be recycled immediately; thus a much faster "clean up" to the end of an LLR Challenge. DETACHING, RESETTING, and PAUSING tasks causes them to remain in limbo until they EXPIRE. Therefore, we must wait until tasks expire to send them out to be completed.

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


About the Generalized Cullen/Woodall Prime Search

A Cullen number (first studied by Reverend James Cullen in 1905) is a number of the form n * 2^n + 1. A Woodall number (first studied by Allan Cunningham and H.J. Woodall in 1917) is a number of the form n * 2^n - 1.

Generalized Cullen and Woodall numbers are of the form n * b^n + 1 and n * b^n - 1, respectively, where n + 2 > b.

A couple of years ago PrimeGrid moved its search for Generalized Cullen and Generalized Woodall primes from PRPNet to BOINC. A double-check of all ranges searched by PRPNet has been completed by PrimeGrid, and is continuing on with new work running multiple bases (b values) concurrently and incrementing through n values.

PrimeGrid is sieving to a much larger n than has been previously done. The largest candidates will be in excess of 15,000,000 digits, and will be the same size as the largest candidates in the Seventeen or Bust project.

Once PrimeGrid finds a Generalized Cullen or Woodall on a base, it stops looking for Generalized Cullen or Woodall primes on that base, depending on the type found. For all the current bases, PrimeGrid will initially be searching only for Generalized Cullen Primes. For detail about the bases PrimeGrid will be searching (and has searched), you can go here: http://www.primegrid.com/forum_thread.php?id=3008&nowrap=true#30718.

In addition to having found the largest known Cullen prime http://primes.utm.edu/primes/page.php?id=89536 and largest known Woodall prime http://primes.utm.edu/primes/page.php?id=124539, PrimeGrid has found the largest known Generalized Cullen prime, http://primes.utm.edu/primes/page.php?id=124515 and the 4th largest known Generalized Woodall prime http://primes.utm.edu/primes/page.php?id=98862.

For more information on Generalized Cullen and Woodall Numbers, you can go here: http://primes.utm.edu/top20/page.php?id=42 and here: http://primes.utm.edu/top20/page.php?id=45.

What is LLR?

The Lucas-Lehmer-Riesel (LLR) test is a primality test for numbers of the form N = k*2^n − 1, with 2^n > k. Also, LLR is a program developed by Jean Penne that can run the LLR-tests. It includes the Proth test to perform +1 tests and PRP to test non base 2 numbers. See also:



What is LLR2?

LLR2 is an improvement to the LLR application developed by our very own Pavel Atnashev and stream. It utilizes Gerbicz checks to enable the Fast DoubleCheck feature, which will nearly double the speed of PrimeGrid's progress on the projects it's applied to. For more information, see this forum post.
____________

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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 (56,276)PPS LLR Jade: Earned 10,000,000 credits (13,422,871)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 151809 - Posted: 16 Oct 2021 | 17:21:28 UTC - in response to Message 151803.

The new multi-threading system is now live. Click here to set the maximum number of threads.

The link under "here" contains a timestamp and a token, tnow=1595298865&ttok=78887263307c0cc2e93f633c9a9953d4. It also only edits the prefs for the venue "home", venue=home, but many users have their computers on the blank/"Primary (default)" venue/location, not on "home". So if unexperienced users follow the link, is there not a risk they will change a setting that is irrelevant to them?

In my opinion, we should just have a link to https://www.primegrid.com/prefs.php?subset=project, and then explain that they should pick the relevant venue and scroll to Multi-threading.

/JeppeSN

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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 (21,886,545)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 (22,820,651)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 (35,969,351)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 (338,664,000)PSA Double Bronze: Earned 100,000,000 credits (126,200,096)
Message 151810 - Posted: 16 Oct 2021 | 21:35:23 UTC

What is the current FFT range for tasks?
____________
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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 (24,516,571)PPS LLR Emerald: Earned 50,000,000 credits (61,332,778)PSP LLR Emerald: Earned 50,000,000 credits (51,069,305)SoB LLR Emerald: Earned 50,000,000 credits (51,885,310)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 (484,895,381)WW Double Amethyst: Earned 1,000,000,000 credits (1,587,720,000)
Message 151811 - Posted: 17 Oct 2021 | 0:08:33 UTC - in response to Message 151810.
Last modified: 17 Oct 2021 | 0:11:06 UTC

What is the current FFT range for tasks?

I have been running the tasks for about a day now.
And the PCs are AVX512 but should be indicative.
1920K - 2248K

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Discovered 1 mega primeFound 2 primes in the 2018 Tour de PrimesFound 3 primes in the 2019 Tour de PrimesFound 2 primes in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,485,657)Cullen LLR Jade: Earned 10,000,000 credits (10,012,652)ESP LLR Jade: Earned 10,000,000 credits (10,724,918)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (13,378,768)PPS LLR Sapphire: Earned 20,000,000 credits (20,387,952)PSP LLR Sapphire: Earned 20,000,000 credits (20,092,383)SoB LLR Jade: Earned 10,000,000 credits (12,091,656)SR5 LLR Jade: Earned 10,000,000 credits (10,029,687)SGS LLR Jade: Earned 10,000,000 credits (10,087,271)TRP LLR Jade: Earned 10,000,000 credits (10,077,940)Woodall LLR Jade: Earned 10,000,000 credits (10,011,525)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,120,432)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,004,494)PPS Sieve Double Bronze: Earned 100,000,000 credits (137,833,448)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,002,980)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,010,755)AP 26/27 Double Bronze: Earned 100,000,000 credits (121,807,504)GFN Double Bronze: Earned 100,000,000 credits (141,684,586)WW Double Silver: Earned 200,000,000 credits (200,168,000)PSA Silver: Earned 100,000 credits (443,652)
Message 151813 - Posted: 17 Oct 2021 | 5:29:02 UTC - in response to Message 151810.

What is the current FFT range for tasks?


I've been running them for a few days now and it seems to be 1792K - 2240K
But like with Nick's post, there may be some slight variations.
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Badge Score: 2*1 + 4*2 + 6*1 + 7*10 + 8*2 + 10*3 + 11*1 = 143

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Joined: 2 Nov 09
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Credit: 2,155,026,237
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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 (21,886,545)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 (22,820,651)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 (35,969,351)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 (338,664,000)PSA Double Bronze: Earned 100,000,000 credits (126,200,096)
Message 151827 - Posted: 17 Oct 2021 | 17:49:50 UTC

Thanks to you both. Trying to get a picture of where to set multithreading since I haven't GCW'd in awhile. Can be a challenge (heh) with the multiple bases and +/-1. The two tasks I completed came in 1792k and 2304k. It's so easy to just set MT to all the cores when core counts are low. But it looks like my mid-core CPUs will use them all with some cache to spare and my high(er)-core will do better with two tasks at a time.

For anyone who wants to know, 2304k would need about 18MB of cache to fit inside the CPU. Just a wee bit awkward for Ryzens.
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321 LLR Ruby: Earned 2,000,000 credits (3,923,182)Cullen LLR Gold: Earned 500,000 credits (558,789)ESP LLR Ruby: Earned 2,000,000 credits (2,090,896)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,653,908)PPS LLR Jade: Earned 10,000,000 credits (12,343,960)PSP LLR Turquoise: Earned 5,000,000 credits (5,199,623)SoB LLR Ruby: Earned 2,000,000 credits (2,959,742)SR5 LLR Ruby: Earned 2,000,000 credits (3,227,665)SGS LLR Amethyst: Earned 1,000,000 credits (1,434,518)TRP LLR Amethyst: Earned 1,000,000 credits (1,670,091)Woodall LLR Amethyst: Earned 1,000,000 credits (1,097,642)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,940,256)Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (72,639)Generalized Cullen/Woodall Sieve (suspended) Bronze: Earned 10,000 credits (40,416)PPS Sieve Emerald: Earned 50,000,000 credits (61,762,871)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Bronze: Earned 10,000 credits (19,337)TRP Sieve (suspended) Bronze: Earned 10,000 credits (34,240)AP 26/27 Silver: Earned 100,000 credits (299,182)GFN Emerald: Earned 50,000,000 credits (50,540,567)WW Ruby: Earned 2,000,000 credits (3,372,000)
Message 151834 - Posted: 18 Oct 2021 | 5:05:39 UTC

The time of the game is a little short. I have several old machines. It's estimated that I can't finish it.
____________

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Discovered 1 mega prime2012 Tour de Primes highest prime scoreFound 2 primes in the 2018 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 (14,136,498)Cullen LLR Ruby: Earned 2,000,000 credits (2,665,899)ESP LLR Ruby: Earned 2,000,000 credits (3,683,178)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,076,225)PPS LLR Jade: Earned 10,000,000 credits (13,444,750)PSP LLR Ruby: Earned 2,000,000 credits (2,789,338)SoB LLR Ruby: Earned 2,000,000 credits (4,391,412)SR5 LLR Ruby: Earned 2,000,000 credits (2,716,765)SGS LLR Ruby: Earned 2,000,000 credits (2,396,774)TRP LLR Ruby: Earned 2,000,000 credits (4,112,658)Woodall LLR Amethyst: Earned 1,000,000 credits (1,664,441)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,106,124)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,449,019)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,388,253)PPS Sieve Double Silver: Earned 200,000,000 credits (427,428,369)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,072,601)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,441,257)AP 26/27 Sapphire: Earned 20,000,000 credits (21,294,481)GFN Emerald: Earned 50,000,000 credits (56,936,368)WW Sapphire: Earned 20,000,000 credits (33,760,000)PSA Emerald: Earned 50,000,000 credits (79,952,619)
Message 151862 - Posted: 20 Oct 2021 | 0:22:40 UTC

If you are using Digital Ocean or TheScience.cloud 3-core/1GB droplets, you can only run one task at a time.


I don't think these droplets are available any more (not on TSC anyway). Would the 1-cpu droplets from TSC be able to complete 1 task?
____________
676754^262144+1 is prime

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Discovered 5 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 Primes321 LLR Turquoise: Earned 5,000,000 credits (8,211,535)Cullen LLR Ruby: Earned 2,000,000 credits (3,663,353)ESP LLR Turquoise: Earned 5,000,000 credits (7,438,830)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (5,645,460)PPS LLR Emerald: Earned 50,000,000 credits (56,695,118)PSP LLR Jade: Earned 10,000,000 credits (12,105,734)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 (227,586,323)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 (56,593,914)GFN Double Silver: Earned 200,000,000 credits (373,710,795)PSA Amethyst: Earned 1,000,000 credits (1,142,791)
Message 151881 - Posted: 21 Oct 2021 | 1:10:43 UTC
Last modified: 21 Oct 2021 | 1:14:54 UTC

Tasks are already coming in?
https://www.primegrid.com/challenge/2021_7/top_users.html

This one is Super Fast. http://www.primegrid.com/result.php?resultid=1266000660
Created 21 Oct 2021 | 0:06:19 UTC
Sent 21 Oct 2021 | 0:07:26 UTC
Received 21 Oct 2021 | 0:56:17 UTC

Ravi Fernando
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Posts: 183
ID: 1108183
Credit: 10,383,061
RAC: 6,274
321 LLR Gold: Earned 500,000 credits (640,213)Cullen LLR Bronze: Earned 10,000 credits (82,217)ESP LLR Bronze: Earned 10,000 credits (16,570)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (39,285)PPS LLR Ruby: Earned 2,000,000 credits (3,199,281)PSP LLR Silver: Earned 100,000 credits (106,263)SoB LLR Silver: Earned 100,000 credits (258,849)SR5 LLR Bronze: Earned 10,000 credits (59,499)SGS LLR Silver: Earned 100,000 credits (148,878)TRP LLR Silver: Earned 100,000 credits (195,905)Woodall LLR Bronze: Earned 10,000 credits (40,424)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,001,667)AP 26/27 Bronze: Earned 10,000 credits (72,774)GFN Gold: Earned 500,000 credits (502,872)WW Bronze: Earned 10,000 credits (12,000)
Message 151882 - Posted: 21 Oct 2021 | 1:51:27 UTC - in response to Message 151881.

Those look like proof tasks--the credit is way too low to be a full LLR task.

arakelov
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Posts: 10
ID: 1375045
Credit: 23,481,057
RAC: 175,851
Cullen LLR Bronze: Earned 10,000 credits (25,951)ESP LLR Silver: Earned 100,000 credits (217,264)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (186,017)PPS LLR Bronze: Earned 10,000 credits (48,860)PSP LLR Gold: Earned 500,000 credits (919,454)SoB LLR Ruby: Earned 2,000,000 credits (4,700,218)SR5 LLR Bronze: Earned 10,000 credits (12,677)TRP LLR Silver: Earned 100,000 credits (243,386)Woodall LLR Bronze: Earned 10,000 credits (44,502)PPS Sieve Gold: Earned 500,000 credits (515,763)AP 26/27 Silver: Earned 100,000 credits (161,720)GFN Jade: Earned 10,000,000 credits (15,947,389)WW Silver: Earned 100,000 credits (456,000)
Message 151883 - Posted: 21 Oct 2021 | 5:09:46 UTC

Hi! I already returned a task around 3:30 UTC (llrGCW_385473577_1) and it's checked, but I don't appear in the list:

https://www.primegrid.com/challenge/2021_7/top_users.html

(now updated at 5:00 UTC). Is there anything wrong?

Ravi Fernando
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Joined: 21 Mar 19
Posts: 183
ID: 1108183
Credit: 10,383,061
RAC: 6,274
321 LLR Gold: Earned 500,000 credits (640,213)Cullen LLR Bronze: Earned 10,000 credits (82,217)ESP LLR Bronze: Earned 10,000 credits (16,570)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (39,285)PPS LLR Ruby: Earned 2,000,000 credits (3,199,281)PSP LLR Silver: Earned 100,000 credits (106,263)SoB LLR Silver: Earned 100,000 credits (258,849)SR5 LLR Bronze: Earned 10,000 credits (59,499)SGS LLR Silver: Earned 100,000 credits (148,878)TRP LLR Silver: Earned 100,000 credits (195,905)Woodall LLR Bronze: Earned 10,000 credits (40,424)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,001,667)AP 26/27 Bronze: Earned 10,000 credits (72,774)GFN Gold: Earned 500,000 credits (502,872)WW Bronze: Earned 10,000 credits (12,000)
Message 151884 - Posted: 21 Oct 2021 | 5:48:23 UTC - in response to Message 151883.

Hi! I already returned a task around 3:30 UTC (llrGCW_385473577_1) and it's checked, but I don't appear in the list:

https://www.primegrid.com/challenge/2021_7/top_users.html

(now updated at 5:00 UTC). Is there anything wrong?

Only tasks that are both downloaded and returned during the challenge count towards your score. (Otherwise people could start all their tasks early and just return them during the challenge.) The task you're referring to was downloaded from the server at 20:01 UTC on October 20, about four hours early, so it won't count.

I see you downloaded three other GCW tasks at the same time. Those won't be eligible for the challenge for the same reason. If you'd like, you can abort them and download new ones which will count. (Aborting tasks is not a problem; they'll be sent out to other users soon.)

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Posts: 212
ID: 1014486
Credit: 416,319,336
RAC: 382,731
Found 1 prime in the 2019 Tour de PrimesFound 5 primes in the 2020 Tour de PrimesFound 4 primes in the 2021 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,216,329)Cullen LLR Ruby: Earned 2,000,000 credits (2,826,433)ESP LLR Ruby: Earned 2,000,000 credits (3,928,263)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,822,922)PPS LLR Sapphire: Earned 20,000,000 credits (28,383,159)PSP LLR Turquoise: Earned 5,000,000 credits (7,765,873)SoB LLR Turquoise: Earned 5,000,000 credits (5,915,028)SR5 LLR Ruby: Earned 2,000,000 credits (2,095,507)SGS LLR Ruby: Earned 2,000,000 credits (2,037,347)TRP LLR Ruby: Earned 2,000,000 credits (4,118,961)Woodall LLR Ruby: Earned 2,000,000 credits (2,247,622)321 Sieve (suspended) Ruby: Earned 2,000,000 credits (2,279,140)Generalized Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (6,057,633)PPS Sieve Double Silver: Earned 200,000,000 credits (253,856,526)AP 26/27 Ruby: Earned 2,000,000 credits (2,919,046)GFN Sapphire: Earned 20,000,000 credits (34,893,546)WW Emerald: Earned 50,000,000 credits (51,956,000)
Message 151886 - Posted: 21 Oct 2021 | 7:18:10 UTC

Making a late start due to work commitments.
Better late than never I guess. :)
____________

arakelov
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Joined: 3 Jun 21
Posts: 10
ID: 1375045
Credit: 23,481,057
RAC: 175,851
Cullen LLR Bronze: Earned 10,000 credits (25,951)ESP LLR Silver: Earned 100,000 credits (217,264)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (186,017)PPS LLR Bronze: Earned 10,000 credits (48,860)PSP LLR Gold: Earned 500,000 credits (919,454)SoB LLR Ruby: Earned 2,000,000 credits (4,700,218)SR5 LLR Bronze: Earned 10,000 credits (12,677)TRP LLR Silver: Earned 100,000 credits (243,386)Woodall LLR Bronze: Earned 10,000 credits (44,502)PPS Sieve Gold: Earned 500,000 credits (515,763)AP 26/27 Silver: Earned 100,000 credits (161,720)GFN Jade: Earned 10,000,000 credits (15,947,389)WW Silver: Earned 100,000 credits (456,000)
Message 151894 - Posted: 21 Oct 2021 | 11:35:13 UTC - in response to Message 151884.

Thanks Ravi! I was not aware about the download time, I thought that only the upload time was being taken into account.
I won't abort any task, the important thing is finding primes, whether they fall into the challenge or not!

Best wishes.

Profile DaveProject donor
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Posts: 2932
ID: 130544
Credit: 1,638,391,009
RAC: 2,728,150
Found 2 primes in the 2018 Tour de PrimesFound 1 prime in the 2020 Tour de Primes321 LLR Jade: Earned 10,000,000 credits (10,000,095)Cullen LLR Jade: Earned 10,000,000 credits (10,008,839)ESP LLR Jade: Earned 10,000,000 credits (10,006,418)Generalized Cullen/Woodall LLR Turquoise: Earned 5,000,000 credits (8,605,923)PPS LLR Turquoise: Earned 5,000,000 credits (8,000,278)PSP LLR Turquoise: Earned 5,000,000 credits (8,888,926)SoB LLR Turquoise: Earned 5,000,000 credits (9,306,239)SR5 LLR Turquoise: Earned 5,000,000 credits (8,003,173)SGS LLR Turquoise: Earned 5,000,000 credits (7,981,578)TRP LLR Turquoise: Earned 5,000,000 credits (6,819,659)Woodall LLR Turquoise: Earned 5,000,000 credits (6,007,879)321 Sieve (suspended) Jade: Earned 10,000,000 credits (10,003,334)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (268,250)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,502)PPS Sieve Double Silver: Earned 200,000,000 credits (307,000,341)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,133)TRP Sieve (suspended) Jade: Earned 10,000,000 credits (10,000,970)AP 26/27 Double Silver: Earned 200,000,000 credits (200,128,500)GFN Double Bronze: Earned 100,000,000 credits (170,400,013)WW Double Gold: Earned 500,000,000 credits (626,960,000)PSA Double Silver: Earned 200,000,000 credits (200,000,001)
Message 151895 - Posted: 21 Oct 2021 | 11:42:18 UTC - in response to Message 151883.

The rules are quite clear at the start of this thread.

arakelov
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Joined: 3 Jun 21
Posts: 10
ID: 1375045
Credit: 23,481,057
RAC: 175,851
Cullen LLR Bronze: Earned 10,000 credits (25,951)ESP LLR Silver: Earned 100,000 credits (217,264)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (186,017)PPS LLR Bronze: Earned 10,000 credits (48,860)PSP LLR Gold: Earned 500,000 credits (919,454)SoB LLR Ruby: Earned 2,000,000 credits (4,700,218)SR5 LLR Bronze: Earned 10,000 credits (12,677)TRP LLR Silver: Earned 100,000 credits (243,386)Woodall LLR Bronze: Earned 10,000 credits (44,502)PPS Sieve Gold: Earned 500,000 credits (515,763)AP 26/27 Silver: Earned 100,000 credits (161,720)GFN Jade: Earned 10,000,000 credits (15,947,389)WW Silver: Earned 100,000 credits (456,000)
Message 151899 - Posted: 21 Oct 2021 | 14:53:53 UTC - in response to Message 151895.

Yes, my fault for not reading till the end of the post.

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Posts: 1548
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Credit: 35,910,524
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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 (56,276)PPS LLR Jade: Earned 10,000,000 credits (13,422,871)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 151900 - Posted: 21 Oct 2021 | 15:08:35 UTC - in response to Message 151895.

The rules are quite clear at the start of this thread.

Yes. It is to be understood that "Only tasks issued AFTER 21st October 2021 00:00 UTC and[...]" relates to the field Sent you see when you look at your tasks here on www.primegrid.com. /JeppeSN

xii5ku
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Joined: 17 Dec 16
Posts: 74
ID: 476505
Credit: 770,880,689
RAC: 238,554
321 LLR Jade: Earned 10,000,000 credits (16,776,661)Cullen LLR Turquoise: Earned 5,000,000 credits (5,352,689)ESP LLR Jade: Earned 10,000,000 credits (19,375,769)Generalized Cullen/Woodall LLR Jade: Earned 10,000,000 credits (11,503,405)PPS LLR Jade: Earned 10,000,000 credits (15,401,000)PSP LLR Emerald: Earned 50,000,000 credits (50,675,637)SoB LLR Sapphire: Earned 20,000,000 credits (47,831,464)SR5 LLR Turquoise: Earned 5,000,000 credits (7,426,546)SGS LLR Turquoise: Earned 5,000,000 credits (5,029,187)TRP LLR Jade: Earned 10,000,000 credits (18,341,209)Woodall LLR Turquoise: Earned 5,000,000 credits (7,760,017)321 Sieve (suspended) Sapphire: Earned 20,000,000 credits (26,331,175)Generalized Cullen/Woodall Sieve (suspended) Jade: Earned 10,000,000 credits (11,205,264)PPS Sieve Double Silver: Earned 200,000,000 credits (415,421,814)AP 26/27 Sapphire: Earned 20,000,000 credits (25,212,148)GFN Emerald: Earned 50,000,000 credits (66,948,366)WW Sapphire: Earned 20,000,000 credits (20,316,000)
Message 151906 - Posted: 21 Oct 2021 | 21:00:16 UTC - in response to Message 151810.

On Oct 16 Grebuloner wrote:
What is the current FFT range for tasks?

I looked up the sizes as chosen on Haswell for all "b" and "min n in progress"/ "max n in progress"/ "max n loaded" on October 12:

13 ___ 4234840/ 4330158/ 4343034 __ 1920K
29 ___ 3259942/ 3298500/ 3308112 __ 2016K
47 ___ 2850640/ 2884836/ 2893336 __ 2M/ 2304K/ 2304K
49 ___ 2817958/ 2853898/ 2862348 __ 1792K
55 ___ 2707792/ 2771662/ 2779828 __ 2M/ 2304K/ 2304K
69 ___ 2581852/ 2623208/ 2630906 __ 2304K
101 __ 2379576/ 2406490/ 2413702 __ 2304K
109 __ 2323728/ 2367570/ 2374138 __ 2304K
121 __ 2290840/ 2316018/ 2322678 __ 1920K

The same, again on Haswell, but with the b and n range from right now:

13 ___ 4281736/ 4576236/ 4601952 __ 1920K/ 2016K/ 2016K
29 ___ 3270760/ 3485662/ 3505386 __ 2016K/ 2304K/ 2304K
47 ___ 2850640/ 3048694/ 3065802 __ 2M/ 2304K/ 2304K
49 ___ 2830108/ 3015928/ 3032950 __ 1792K/ 1920K/ 1920K
55 ___ 2750254/ 2929120/ 2945490 __ 2304K
69 ___ 2593972/ 2772220/ 2787712 __ 2304K
101 __ 2386636/ 2543368/ 2557572 __ 2304K/ 2400K/ 2400K
109 __ 2352808/ 2501962/ 2516052 __ 2304K/ 2400K/ 2400K
121 __ 2293086/ 2447536/ 2461276 __ 1920K/ 2016K/ 2016K

Profile Michael GutierrezProject donor
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Joined: 21 Mar 17
Posts: 195
ID: 764476
Credit: 43,163,942
RAC: 13,097
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 (1,085,552)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 (256,196)AP 26/27 Silver: Earned 100,000 credits (101,075)GFN Ruby: Earned 2,000,000 credits (3,676,038)WW Ruby: Earned 2,000,000 credits (2,748,000)PSA Silver: Earned 100,000 credits (108,393)
Message 151908 - Posted: 22 Oct 2021 | 0:36:30 UTC

One day down! Here are the task stats:
Challenge: Martin Gardner's Birthday
App: 30 (GCW-LLR)
Fast DC tasks are NOT included.
(As of 2021-10-22 00:35:18 UTC)

14533 tasks have been sent out. [CPU/GPU/anonymous_platform: 14533 (100%) / 0 (0%) / 0 (0%)]

Of those tasks that have been sent out:

1836 (13%) were aborted. [1836 (13%) / 0 (0%) / 0 (0%)]
68 (0%) came back with some kind of an error. [68 (0%) / 0 (0%) / 0 (0%)]
951 (7%) have returned a successful result. [951 (7%) / 0 (0%) / 0 (0%)]
11678 (80%) are still in progress. [11678 (80%) / 0 (0%) / 0 (0%)]

Of the tasks that have been returned successfully:

676 (71%) are pending validation. [676 (71%) / 0 (0%) / 0 (0%)]
275 (29%) have been successfully validated. [275 (29%) / 0 (0%) / 0 (0%)]
0 (0%) were invalid. [0 (0%) / 0 (0%) / 0 (0%)]
0 (0%) are inconclusive. [0 (0%) / 0 (0%) / 0 (0%)]

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is n=6031560. The leading edge was at n=5844056 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 3.21% as much as it had prior to the challenge!
____________

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

Profile Michael GutierrezProject donor
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Joined: 21 Mar 17
Posts: 195
ID: 764476
Credit: 43,163,942
RAC: 13,097
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 (1,085,552)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 (256,196)AP 26/27 Silver: Earned 100,000 credits (101,075)GFN Ruby: Earned 2,000,000 credits (3,676,038)WW Ruby: Earned 2,000,000 credits (2,748,000)PSA Silver: Earned 100,000 credits (108,393)
Message 151923 - Posted: 22 Oct 2021 | 23:05:23 UTC

Day 2 stats:
Challenge: Martin Gardner's Birthday
App: 30 (GCW-LLR)
Fast DC tasks are NOT included.
(As of 2021-10-22 23:04:59 UTC)

22264 tasks have been sent out. [CPU/GPU/anonymous_platform: 22264 (100%) / 0 (0%) / 0 (0%)]

Of those tasks that have been sent out:

2456 (11%) were aborted. [2456 (11%) / 0 (0%) / 0 (0%)]
87 (0%) came back with some kind of an error. [87 (0%) / 0 (0%) / 0 (0%)]
2715 (12%) have returned a successful result. [2715 (12%) / 0 (0%) / 0 (0%)]
17006 (76%) are still in progress. [17006 (76%) / 0 (0%) / 0 (0%)]

Of the tasks that have been returned successfully:

2015 (74%) are pending validation. [2015 (74%) / 0 (0%) / 0 (0%)]
700 (26%) have been successfully validated. [700 (26%) / 0 (0%) / 0 (0%)]
0 (0%) were invalid. [0 (0%) / 0 (0%) / 0 (0%)]
0 (0%) are inconclusive. [0 (0%) / 0 (0%) / 0 (0%)]

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is n=6147116. The leading edge was at n=5844056 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 5.19% as much as it had prior to the challenge!
____________

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

Michael Millerick
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Joined: 4 Feb 09
Posts: 802
ID: 35074
Credit: 331,365,462
RAC: 314,926
Discovered 1 mega primeFound 3 primes in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,023,600)Cullen LLR Ruby: Earned 2,000,000 credits (2,016,794)ESP LLR Sapphire: Earned 20,000,000 credits (20,186,009)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (4,778,760)PPS LLR Sapphire: Earned 20,000,000 credits (20,020,201)PSP LLR Ruby: Earned 2,000,000 credits (3,043,852)SoB LLR Ruby: Earned 2,000,000 credits (2,031,453)SR5 LLR Ruby: Earned 2,000,000 credits (2,085,475)SGS LLR Ruby: Earned 2,000,000 credits (2,035,177)TRP LLR Ruby: Earned 2,000,000 credits (2,740,707)Woodall LLR Ruby: Earned 2,000,000 credits (2,046,592)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,440,175)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,911,344)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,077,092)PPS Sieve Emerald: Earned 50,000,000 credits (50,200,870)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,034,014)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,774)AP 26/27 Sapphire: Earned 20,000,000 credits (20,227,947)GFN Emerald: Earned 50,000,000 credits (79,429,696)WW Emerald: Earned 50,000,000 credits (50,104,000)PSA Emerald: Earned 50,000,000 credits (52,866,806)
Message 151927 - Posted: 23 Oct 2021 | 8:49:22 UTC - in response to Message 151923.

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is n=6147116. The leading edge was at n=5844056 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 5.19% as much as it had prior to the challenge!

How is n=6147116 being determined as the leading edge? I don't see numbers similar to that one anywhere on https://www.primegrid.com/stats_gcw_llr.php
____________

Ravi Fernando
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Joined: 21 Mar 19
Posts: 183
ID: 1108183
Credit: 10,383,061
RAC: 6,274
321 LLR Gold: Earned 500,000 credits (640,213)Cullen LLR Bronze: Earned 10,000 credits (82,217)ESP LLR Bronze: Earned 10,000 credits (16,570)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (39,285)PPS LLR Ruby: Earned 2,000,000 credits (3,199,281)PSP LLR Silver: Earned 100,000 credits (106,263)SoB LLR Silver: Earned 100,000 credits (258,849)SR5 LLR Bronze: Earned 10,000 credits (59,499)SGS LLR Silver: Earned 100,000 credits (148,878)TRP LLR Silver: Earned 100,000 credits (195,905)Woodall LLR Bronze: Earned 10,000 credits (40,424)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,001,667)AP 26/27 Bronze: Earned 10,000 credits (72,774)GFN Gold: Earned 500,000 credits (502,872)WW Bronze: Earned 10,000 credits (12,000)
Message 151930 - Posted: 23 Oct 2021 | 16:47:51 UTC - in response to Message 151927.

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is n=6147116. The leading edge was at n=5844056 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 5.19% as much as it had prior to the challenge!

How is n=6147116 being determined as the leading edge? I don't see numbers similar to that one anywhere on https://www.primegrid.com/stats_gcw_llr.php

That n=6147116 probably refers to the candidate 3073558 * 49^3073558 + 1, which is rewritten as 3073558 * 7^6147116 + 1 before being crunched. (We do the same thing for GCW b=121, and we did for b=25 until that search ended with tng's prime.) Doubling these exponents makes them the largest ones currently used in GCW.

It's a bit misleading to state GCW leading edges in terms of n, as GCW doesn't search in n order--it searches in size order. But all of the different leading edges (one for each b) are proportional to each other, so at least the percentages are meaningful.

Michael Millerick
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Credit: 331,365,462
RAC: 314,926
Discovered 1 mega primeFound 3 primes in the 2020 Tour de PrimesFound 2 primes in the 2021 Tour de Primes321 LLR Ruby: Earned 2,000,000 credits (2,023,600)Cullen LLR Ruby: Earned 2,000,000 credits (2,016,794)ESP LLR Sapphire: Earned 20,000,000 credits (20,186,009)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (4,778,760)PPS LLR Sapphire: Earned 20,000,000 credits (20,020,201)PSP LLR Ruby: Earned 2,000,000 credits (3,043,852)SoB LLR Ruby: Earned 2,000,000 credits (2,031,453)SR5 LLR Ruby: Earned 2,000,000 credits (2,085,475)SGS LLR Ruby: Earned 2,000,000 credits (2,035,177)TRP LLR Ruby: Earned 2,000,000 credits (2,740,707)Woodall LLR Ruby: Earned 2,000,000 credits (2,046,592)321 Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,440,175)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,911,344)Generalized Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (2,077,092)PPS Sieve Emerald: Earned 50,000,000 credits (50,200,870)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,034,014)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,774)AP 26/27 Sapphire: Earned 20,000,000 credits (20,227,947)GFN Emerald: Earned 50,000,000 credits (79,429,696)WW Emerald: Earned 50,000,000 credits (50,104,000)PSA Emerald: Earned 50,000,000 credits (52,866,806)
Message 151931 - Posted: 23 Oct 2021 | 16:50:32 UTC - in response to Message 151930.

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is n=6147116. The leading edge was at n=5844056 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 5.19% as much as it had prior to the challenge!

How is n=6147116 being determined as the leading edge? I don't see numbers similar to that one anywhere on https://www.primegrid.com/stats_gcw_llr.php

That n=6147116 probably refers to the candidate 3073558 * 49^3073558 + 1, which is rewritten as 3073558 * 7^6147116 + 1 before being crunched. (We do the same thing for GCW b=121, and we did for b=25 until that search ended with tng's prime.) Doubling these exponents makes them the largest ones currently used in GCW.

It's a bit misleading to state GCW leading edges in terms of n, as GCW doesn't search in n order--it searches in size order. But all of the different leading edges (one for each b) are proportional to each other, so at least the percentages are meaningful.

Agreed, I was assuming progress would be stated in terms of the number of digits. Thanks for figuring out the discrepancy.
____________

Profile Michael GutierrezProject donor
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Joined: 21 Mar 17
Posts: 195
ID: 764476
Credit: 43,163,942
RAC: 13,097
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 (1,085,552)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 (256,196)AP 26/27 Silver: Earned 100,000 credits (101,075)GFN Ruby: Earned 2,000,000 credits (3,676,038)WW Ruby: Earned 2,000,000 credits (2,748,000)PSA Silver: Earned 100,000 credits (108,393)
Message 151937 - Posted: 24 Oct 2021 | 0:59:44 UTC

Day 3:
Challenge: Martin Gardner's Birthday
App: 30 (GCW-LLR)
Fast DC tasks are NOT included.
(As of 2021-10-24 00:58:38 UTC)

27293 tasks have been sent out. [CPU/GPU/anonymous_platform: 27293 (100%) / 0 (0%) / 0 (0%)]

Of those tasks that have been sent out:

3034 (11%) were aborted. [3034 (11%) / 0 (0%) / 0 (0%)]
331 (1%) came back with some kind of an error. [331 (1%) / 0 (0%) / 0 (0%)]
5193 (19%) have returned a successful result. [5193 (19%) / 0 (0%) / 0 (0%)]
18735 (69%) are still in progress. [18735 (69%) / 0 (0%) / 0 (0%)]

Of the tasks that have been returned successfully:

2058 (40%) are pending validation. [2058 (40%) / 0 (0%) / 0 (0%)]
3135 (60%) have been successfully validated. [3135 (60%) / 0 (0%) / 0 (0%)]
0 (0%) were invalid. [0 (0%) / 0 (0%) / 0 (0%)]
0 (0%) are inconclusive. [0 (0%) / 0 (0%) / 0 (0%)]

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is n=6216372. The leading edge was at n=5844056 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 6.37% as much as it had prior to the challenge!
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Credit: 35,910,524
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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 (56,276)PPS LLR Jade: Earned 10,000,000 credits (13,422,871)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 151939 - Posted: 24 Oct 2021 | 8:14:21 UTC - in response to Message 151930.

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is n=6147116. The leading edge was at n=5844056 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 5.19% as much as it had prior to the challenge!

How is n=6147116 being determined as the leading edge? I don't see numbers similar to that one anywhere on https://www.primegrid.com/stats_gcw_llr.php

That n=6147116 probably refers to the candidate 3073558 * 49^3073558 + 1, which is rewritten as 3073558 * 7^6147116 + 1 before being crunched. (We do the same thing for GCW b=121, and we did for b=25 until that search ended with tng's prime.) Doubling these exponents makes them the largest ones currently used in GCW.

It's a bit misleading to state GCW leading edges in terms of n, as GCW doesn't search in n order--it searches in size order. But all of the different leading edges (one for each b) are proportional to each other, so at least the percentages are meaningful.


Well spotted, Michael Millerick.

Yes, that is somewhat confusing. It would be more natural to use the "n" before the rewriting, i.e. the n which is used to see that the candidate is really of generalized Cullen form. This also seems to be what /stats_gcw_llr.php does.

Once b=49 and b=121 are both eliminated, the leading edge as determined by the challenge status logic will fall back.

But it is simply a factor two (no b of type cube, fourth power etc. on our list), so easy to convert between the two types of leading n, once you understand. However, as Ravi says, search is in size order, not in pre-rewrite n order, which is also evident from the stats link.

So based on the order we do this, measuring leading edge by the number of digits may be the best option.

/JeppeSN

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