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Message boards : Number crunching : Diwali/Deepavali Challenge

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321 LLR Amethyst: Earned 1,000,000 credits (1,130,571)Cullen LLR Amethyst: Earned 1,000,000 credits (1,040,598)ESP LLR Amethyst: Earned 1,000,000 credits (1,019,489)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,088,286)PPS LLR Amethyst: Earned 1,000,000 credits (1,002,303)PSP LLR Ruby: Earned 2,000,000 credits (2,420,512)SoB LLR Amethyst: Earned 1,000,000 credits (1,071,208)SR5 LLR Ruby: Earned 2,000,000 credits (2,035,801)SGS LLR Amethyst: Earned 1,000,000 credits (1,595,570)TRP LLR Amethyst: Earned 1,000,000 credits (1,378,700)Woodall LLR Amethyst: Earned 1,000,000 credits (1,059,108)Cullen/Woodall Sieve (suspended) Silver: Earned 100,000 credits (207,387)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,025,618)PPS Sieve Emerald: Earned 50,000,000 credits (50,460,532)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (3,227,972)TRP Sieve (suspended) Turquoise: Earned 5,000,000 credits (5,021,659)AP 26/27 Jade: Earned 10,000,000 credits (11,914,721)GFN Emerald: Earned 50,000,000 credits (52,654,905)PSA Sapphire: Earned 20,000,000 credits (43,298,465)
Message 110693 - Posted: 8 Oct 2017 | 6:44:21 UTC
Last modified: 8 Oct 2017 | 13:53:39 UTC

Welcome to the Diwali/Deepavali Challenge

The sixth Challenge of the 2017 Challenge series is a 5 day challenge to celebrate Diwali/Deepavali. The challenge is being offered on the The Riesel Problem (LLR) application.

Diwali or Deepavali is the Hindu festival of lights celebrated every year in autumn in the northern hemisphere. One of the most popular festivals of Hinduism, it spiritually signifies the victory of light over darkness, good over evil, knowledge over ignorance, and hope over despair. Its celebration includes millions of lights shining on housetops, outside doors and windows, around temples and other buildings in the communities and countries where it is observed. The festival preparations and rituals typically extend over a five-day period, but the main festival night of Diwali coincides with the darkest, new moon night of the Hindu Lunisolar month Kartika in Bikram Sambat calendar. In the Gregorian calendar, Diwali night falls between mid-October and mid-November.

Before Diwali night, people clean, renovate, and decorate their homes and offices. On Diwali night, people dress up in new clothes or their best outfit, light up diyas (lamps and candles) inside and outside their home, participate in family puja (prayers) typically to Lakshmi – the goddess of fertility and prosperity. After puja, fireworks follow, then a family feast including mithai (sweets), and an exchange of gifts between family members and close friends. Deepavali also marks a major shopping period in nations where it is celebrated.

On the same night that Hindus celebrate Diwali, Jains celebrate a festival also called Diwali to mark the attainment of moksha by Mahavira, Sikhs celebrate Bandi Chhor Divas to mark the release of Guru Hargobind from a Mughal Empire prison, and Newar Buddhists, unlike the majority of Buddhists, celebrate Diwali by worshipping Lakshmi.

To participate in the Challenge, please select only the The Riesel Problem (LLR) project in your PrimeGrid preferences section. The challenge will begin 18th October 2017 00:00 UTC and end 23rd October 2017 00:00 UTC. Note the non-standard start time.

Any prime we find in this challenge would be the first TRP k we will have eliminated in over 3 years!

Application builds are available for Linux 32 and 64 bit, Windows 32 and 64 bit and MacIntel. Intel CPUs with AVX capabilities (Sandy Bridge, Ivy Bridge, Haswell, Broadwell, Skylake, Kaby Lake, Coffee Lake) will have a very large advantage, and Intel CPUs with FMA3 (Haswell, Broadwell, Skylake, Kaby Lake, Coffee Lake) will be the fastest.

ATTENTION: The primality program LLR is CPU 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 computer. Tasks will take ~16 hours on fast/newer computers and 48+ hours on slower/older computers. If your computer is highly overclocked, please consider "stress testing" it. Sieving is an excellent alternative for computers that are not able to LLR. :)

Highly overclocked Haswell, Broadwell, Skylake, Kaby Lake or Coffee Lake (i.e., Intel Core i7, i5, and i3 -4xxx or better) computers running the application will see fastest times. Note that TRP is running the latest FMA3 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. If you have a Haswell, Broadwell, Skylake, Kaby Lake or Coffee Lake CPU, especially if it's overclocked or has overclocked memory, and haven't run the new FMA3 LLR before, we strongly suggest running it before the challenge while you are monitoring the temperatures.

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


Multi-threading is also now available, and can speed up tasks, giving you a greater chance of being the Prime finder.

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 tasks issued AFTER 18 October 2017 00:00 UTC and received BEFORE 23rd October 2017 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 Riesel Problem

Hans Ivar Riesel (May 28, 1929 in Stockholm - December 21, 2014) was a Swedish mathematician. In 1956, he showed that there are an infinite number of positive odd integer k's such that k*2^n-1 is composite (not prime) for every integer n>=1. These numbers are now called Riesel numbers. He further showed that k=509203 was such one.

It is conjectured that 509203 is the smallest Riesel number. The Riesel problem consists of determining that 509203 is the smallest Riesel number. To show that it is the smallest, a prime of the form k*2^n-1 must be found for each of the positive integer k's less than 509203. As of October 8th, 2017, there remain 50 k's for which no primes have been found. They are as follows:

2293, 9221, 23669, 31859, 38473, 46663, 67117, 74699, 81041, 93839, 97139, 107347, 121889, 129007, 143047, 146561, 161669, 192971, 206039, 206231, 215443, 226153, 234343, 245561, 250027, 273809, 315929, 319511, 324011, 325123, 327671, 336839, 342847, 344759, 362609, 363343, 364903, 365159, 368411, 371893, 384539, 386801, 397027, 409753, 444637, 470173, 474491, 477583, 485557, 494743

For a more detailed history and status of the Riesel problem, please visit Wilfrid Keller's The Riesel Problem: Definition and Status.

Last Primes found at PrimeGrid
402539*2^7173024-1 by Walter Darimont on 2 October 2014. Official Announcement.
502573*2^7181987-1 by Denis Iakovlev on 4 October 2014. Official Announcement.

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:


(Edouard Lucas: 1842-1891, Derrick H. Lehmer: 1905-1991, Hans Riesel: 1929-2014).
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Posts: 9460
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Credit: 104,065,889
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321 LLR Amethyst: Earned 1,000,000 credits (1,169,719)Cullen LLR Amethyst: Earned 1,000,000 credits (1,157,331)ESP LLR Amethyst: Earned 1,000,000 credits (1,179,211)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,330,821)PPS LLR Amethyst: Earned 1,000,000 credits (1,254,873)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Ruby: Earned 2,000,000 credits (2,067,903)SR5 LLR Turquoise: Earned 5,000,000 credits (6,048,315)SGS LLR Amethyst: Earned 1,000,000 credits (1,680,461)TRP LLR Amethyst: Earned 1,000,000 credits (1,051,744)Woodall LLR Amethyst: Earned 1,000,000 credits (1,145,077)321 Sieve (suspended) Silver: Earned 100,000 credits (200,576)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,085,723)PPS Sieve Jade: Earned 10,000,000 credits (18,162,350)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Turquoise: Earned 5,000,000 credits (5,877,196)GFN Sapphire: Earned 20,000,000 credits (40,338,631)PSA Turquoise: Earned 5,000,000 credits (9,426,791)
Message 110702 - Posted: 8 Oct 2017 | 18:16:13 UTC

If you want to use multi-threading, this is what app_config.xml looks like TRP:

<app> <name>llrTRP</name> <max_concurrent>1</max_concurrent> <fraction_done_exact/> </app> <app_version> <app_name>llrTRP</app_name> <cmdline>-t 4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version>


That's for using all four cores on a 4 core CPU. Adjust as needed for your specific hardware and preferences.
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Please do not PM me with support questions. They will usually go unanswered. Ask on the forums instead. Thank you!

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321 LLR Gold: Earned 500,000 credits (859,914)Cullen LLR Amethyst: Earned 1,000,000 credits (1,493,692)ESP LLR Ruby: Earned 2,000,000 credits (2,733,449)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (712,977)PPS LLR Ruby: Earned 2,000,000 credits (4,936,398)PSP LLR Ruby: Earned 2,000,000 credits (4,675,187)SoB LLR Gold: Earned 500,000 credits (656,280)SR5 LLR Amethyst: Earned 1,000,000 credits (1,330,408)SGS LLR Ruby: Earned 2,000,000 credits (3,189,809)TRP LLR Ruby: Earned 2,000,000 credits (2,040,816)Woodall LLR Silver: Earned 100,000 credits (128,177)Generalized Cullen/Woodall Sieve Jade: Earned 10,000,000 credits (10,905,079)PPS Sieve Double Bronze: Earned 100,000,000 credits (105,188,684)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 Jade: Earned 10,000,000 credits (13,762,372)GFN Sapphire: Earned 20,000,000 credits (29,957,360)PSA Amethyst: Earned 1,000,000 credits (1,142,791)
Message 110771 - Posted: 13 Oct 2017 | 17:30:11 UTC - in response to Message 110702.

If you want to use multi-threading, this is what app_config.xml looks like TRP:

<app> <name>llrTRP</name> <max_concurrent>1</max_concurrent> <fraction_done_exact/> </app> <app_version> <app_name>llrTRP</app_name> <cmdline>-t 4</cmdline> <avg_ncpus>4</avg_ncpus> </app_version>


That's for using all four cores on a 4 core CPU. Adjust as needed for your specific hardware and preferences.


Nice, thank you very much for Posting this.
I see that <max_ncpus>4</max_ncpus> is not used anymore?
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Joined: 21 Jan 10
Posts: 9460
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Credit: 104,065,889
RAC: 88,742
321 LLR Amethyst: Earned 1,000,000 credits (1,169,719)Cullen LLR Amethyst: Earned 1,000,000 credits (1,157,331)ESP LLR Amethyst: Earned 1,000,000 credits (1,179,211)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,330,821)PPS LLR Amethyst: Earned 1,000,000 credits (1,254,873)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Ruby: Earned 2,000,000 credits (2,067,903)SR5 LLR Turquoise: Earned 5,000,000 credits (6,048,315)SGS LLR Amethyst: Earned 1,000,000 credits (1,680,461)TRP LLR Amethyst: Earned 1,000,000 credits (1,051,744)Woodall LLR Amethyst: Earned 1,000,000 credits (1,145,077)321 Sieve (suspended) Silver: Earned 100,000 credits (200,576)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,085,723)PPS Sieve Jade: Earned 10,000,000 credits (18,162,350)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Turquoise: Earned 5,000,000 credits (5,877,196)GFN Sapphire: Earned 20,000,000 credits (40,338,631)PSA Turquoise: Earned 5,000,000 credits (9,426,791)
Message 110772 - Posted: 13 Oct 2017 | 18:57:03 UTC - in response to Message 110771.
Last modified: 13 Oct 2017 | 18:59:01 UTC

Nice, thank you very much for Posting this.
I see that <max_ncpus>4</max_ncpus> is not used anymore?


It never was used, despite a lot of people including it in their examples.

At least not in app_config.xml.

It is used in app_info.xml, but is not used in app_config.xml. In app_config.xml it's ignored, and doesn't hurt anything. People reasonably assumed that if both were used in app_info.xml (which came first), then both should also be used in app_config.xml. But that's not true: app_config.xml only uses the <avg_ncpus> tag.
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My lucky number is 75898^524288+1
Please do not PM me with support questions. They will usually go unanswered. Ask on the forums instead. Thank you!

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321 LLR Gold: Earned 500,000 credits (519,706)Cullen LLR Gold: Earned 500,000 credits (516,787)ESP LLR Silver: Earned 100,000 credits (242,785)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (149,781)PPS LLR Ruby: Earned 2,000,000 credits (4,596,519)PSP LLR Amethyst: Earned 1,000,000 credits (1,088,102)SoB LLR Silver: Earned 100,000 credits (146,035)SR5 LLR Gold: Earned 500,000 credits (573,605)SGS LLR Gold: Earned 500,000 credits (998,185)TPS LLR (retired) Bronze: Earned 10,000 credits (19,376)TRP LLR Gold: Earned 500,000 credits (565,203)Woodall LLR Silver: Earned 100,000 credits (268,142)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,000,032)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,584,236)Generalized Cullen/Woodall Sieve Gold: Earned 500,000 credits (990,682)PPS Sieve Emerald: Earned 50,000,000 credits (51,639,009)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Silver: Earned 100,000 credits (352,129)TRP Sieve (suspended) Gold: Earned 500,000 credits (776,202)AP 26/27 Ruby: Earned 2,000,000 credits (2,014,242)GFN Jade: Earned 10,000,000 credits (10,358,603)PSA Ruby: Earned 2,000,000 credits (4,154,617)
Message 110816 - Posted: 17 Oct 2017 | 2:51:44 UTC - in response to Message 110772.

I haven't found a need for the <app> section either. <app_version> alone seems sufficient.
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321 LLR Gold: Earned 500,000 credits (531,287)SGS LLR Silver: Earned 100,000 credits (227,108)TRP LLR Gold: Earned 500,000 credits (697,023)Generalized Cullen/Woodall Sieve Turquoise: Earned 5,000,000 credits (8,571,822)PPS Sieve Double Bronze: Earned 100,000,000 credits (111,563,245)
Message 110818 - Posted: 17 Oct 2017 | 7:34:09 UTC

Another fun challenge, thanks. Just started a few months ago and am trying to find a project I can really get into. 321 was cool, but I'm seeing mega primes being found with the PPS LLR, PSP, SR5, and GFN applications. The plan was to run all the projects to Gold, then figure out which my computers and I liked. Will run all my Haswells during this competition leaving a spare core idle to keep my temps down.

Michael GoetzProject donor
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321 LLR Amethyst: Earned 1,000,000 credits (1,169,719)Cullen LLR Amethyst: Earned 1,000,000 credits (1,157,331)ESP LLR Amethyst: Earned 1,000,000 credits (1,179,211)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,330,821)PPS LLR Amethyst: Earned 1,000,000 credits (1,254,873)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Ruby: Earned 2,000,000 credits (2,067,903)SR5 LLR Turquoise: Earned 5,000,000 credits (6,048,315)SGS LLR Amethyst: Earned 1,000,000 credits (1,680,461)TRP LLR Amethyst: Earned 1,000,000 credits (1,051,744)Woodall LLR Amethyst: Earned 1,000,000 credits (1,145,077)321 Sieve (suspended) Silver: Earned 100,000 credits (200,576)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,085,723)PPS Sieve Jade: Earned 10,000,000 credits (18,162,350)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Turquoise: Earned 5,000,000 credits (5,877,196)GFN Sapphire: Earned 20,000,000 credits (40,338,631)PSA Turquoise: Earned 5,000,000 credits (9,426,791)
Message 110843 - Posted: 17 Oct 2017 | 16:58:36 UTC
Last modified: 17 Oct 2017 | 16:59:04 UTC

Reminder: This challenge starts at 00:00, not 18:00. That means it starts about 7 hours from now rather than 25 hours from now. Don't be late!

Jordan Romaidis
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Credit: 6,726,223
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Cullen LLR Bronze: Earned 10,000 credits (14,857)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (15,245)PSP LLR Bronze: Earned 10,000 credits (23,710)SoB LLR Bronze: Earned 10,000 credits (16,919)TRP LLR Bronze: Earned 10,000 credits (52,967)Woodall LLR Bronze: Earned 10,000 credits (14,731)Generalized Cullen/Woodall Sieve Silver: Earned 100,000 credits (193,303)PPS Sieve Ruby: Earned 2,000,000 credits (2,474,314)AP 26/27 Amethyst: Earned 1,000,000 credits (1,055,223)GFN Ruby: Earned 2,000,000 credits (2,855,882)
Message 110885 - Posted: 18 Oct 2017 | 19:32:20 UTC - in response to Message 110843.

How do I configure multi CPU? I can't find any app_config.xml. Using latest Boinc and only have one instance of TRP LLR 8.0 running and not using much CPU.

I have it as the only selected option in my Prime Grid prefs.

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321 LLR Ruby: Earned 2,000,000 credits (4,015,911)Cullen LLR Ruby: Earned 2,000,000 credits (2,133,150)ESP LLR Ruby: Earned 2,000,000 credits (2,156,584)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,112,686)PPS LLR Ruby: Earned 2,000,000 credits (2,039,006)PSP LLR Ruby: Earned 2,000,000 credits (2,111,273)SoB LLR Ruby: Earned 2,000,000 credits (2,035,645)SR5 LLR Ruby: Earned 2,000,000 credits (2,083,914)SGS LLR Ruby: Earned 2,000,000 credits (2,897,962)TRP LLR Ruby: Earned 2,000,000 credits (2,114,031)Woodall LLR Ruby: Earned 2,000,000 credits (2,012,235)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (3,177,556)PPS Sieve Turquoise: Earned 5,000,000 credits (5,201,453)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,053)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,030,160)AP 26/27 Ruby: Earned 2,000,000 credits (2,433,886)GFN Sapphire: Earned 20,000,000 credits (21,211,034)PSA Emerald: Earned 50,000,000 credits (97,337,913)
Message 110887 - Posted: 18 Oct 2017 | 21:22:14 UTC - in response to Message 110885.

How do I configure multi CPU? I can't find any app_config.xml. Using latest Boinc and only have one instance of TRP LLR 8.0 running and not using much CPU.

I have it as the only selected option in my Prime Grid prefs.

You have to create that file. On a default BOINC installation, open notepad and save as app_config.xml onto C:\ProgramData\BOINC\projects\www.primegrid.com

There, you have to manually put the tags. I'll give mine as an example, it's what I use on my i5. It's set to use 3 cores so that I have 1 free for my GPU, but you can change the -t 3 and avg_ncpus parameters to accomodate your needs.

<app_config>
<app>
<name>llrTRP</name>
<fraction_done_exact/>
</app>
<app_version>
<app_name>llrTRP</app_name>
<cmdline>-t 3</cmdline>
<avg_ncpus>3</avg_ncpus>
</app_version>
</app_config>

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Credit: 1,388,828
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321 LLR Silver: Earned 100,000 credits (117,805)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (73,076)PPS LLR Silver: Earned 100,000 credits (205,317)PSP LLR Bronze: Earned 10,000 credits (23,693)SoB LLR Silver: Earned 100,000 credits (366,513)SR5 LLR Bronze: Earned 10,000 credits (17,330)SGS LLR Silver: Earned 100,000 credits (105,052)TRP LLR Bronze: Earned 10,000 credits (37,768)Woodall LLR Bronze: Earned 10,000 credits (57,943)Generalized Cullen/Woodall Sieve Bronze: Earned 10,000 credits (40,954)AP 26/27 Silver: Earned 100,000 credits (323,440)GFN Bronze: Earned 10,000 credits (19,935)
Message 110888 - Posted: 18 Oct 2017 | 21:34:00 UTC - in response to Message 110887.

open notepad

I couldn't get notepad to save it as an xml file. I downloaded notepad++ for free and used that and it worked.

You need to refresh the settings after you have updated the xml file. You can find out how to do that elsewhere on the forums so I won't repeat it here.

Jordan Romaidis
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Credit: 6,726,223
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Cullen LLR Bronze: Earned 10,000 credits (14,857)Generalized Cullen/Woodall LLR Bronze: Earned 10,000 credits (15,245)PSP LLR Bronze: Earned 10,000 credits (23,710)SoB LLR Bronze: Earned 10,000 credits (16,919)TRP LLR Bronze: Earned 10,000 credits (52,967)Woodall LLR Bronze: Earned 10,000 credits (14,731)Generalized Cullen/Woodall Sieve Silver: Earned 100,000 credits (193,303)PPS Sieve Ruby: Earned 2,000,000 credits (2,474,314)AP 26/27 Amethyst: Earned 1,000,000 credits (1,055,223)GFN Ruby: Earned 2,000,000 credits (2,855,882)
Message 110889 - Posted: 18 Oct 2017 | 21:50:57 UTC - in response to Message 110887.

Thank you got it running. My last questions are - If I have 4 core but 8 for hyperthreading do I sill use 4 or 8 in the .xml file? Also no GPU support?

How do I configure multi CPU? I can't find any app_config.xml. Using latest Boinc and only have one instance of TRP LLR 8.0 running and not using much CPU.

I have it as the only selected option in my Prime Grid prefs.

You have to create that file. On a default BOINC installation, open notepad and save as app_config.xml onto C:\ProgramData\BOINC\projects\www.primegrid.com

There, you have to manually put the tags. I'll give mine as an example, it's what I use on my i5. It's set to use 3 cores so that I have 1 free for my GPU, but you can change the -t 3 and avg_ncpus parameters to accomodate your needs.

<app_config>
<app>
<name>llrTRP</name>
<fraction_done_exact/>
</app>
<app_version>
<app_name>llrTRP</app_name>
<cmdline>-t 3</cmdline>
<avg_ncpus>3</avg_ncpus>
</app_version>
</app_config>

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321 LLR Amethyst: Earned 1,000,000 credits (1,017,072)Cullen LLR Amethyst: Earned 1,000,000 credits (1,261,473)ESP LLR Gold: Earned 500,000 credits (535,630)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (727,076)PPS LLR Gold: Earned 500,000 credits (575,694)PSP LLR Amethyst: Earned 1,000,000 credits (1,709,760)SoB LLR Amethyst: Earned 1,000,000 credits (1,516,446)SR5 LLR Amethyst: Earned 1,000,000 credits (1,056,683)SGS LLR Gold: Earned 500,000 credits (632,629)TRP LLR Ruby: Earned 2,000,000 credits (4,790,415)Generalized Cullen/Woodall Sieve Amethyst: Earned 1,000,000 credits (1,626,395)PPS Sieve Double Bronze: Earned 100,000,000 credits (130,370,054)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (555,042)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,089,296)AP 26/27 Ruby: Earned 2,000,000 credits (2,134,704)GFN Double Silver: Earned 200,000,000 credits (201,672,050)
Message 110890 - Posted: 18 Oct 2017 | 21:58:38 UTC - in response to Message 110888.


I couldn't get notepad to save it as an xml file. I downloaded notepad++ for free and used that and it worked.


You can use Windows Notepad to save as *.xml in the Save As dialog box by clicking on 'Save as type' drop down menu to save as 'All Files' and then type in filename 'app_config.xml'. Or you can save as the default *.txt file and rename it, as it is a simple ASCII text file.

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321 LLR Amethyst: Earned 1,000,000 credits (1,017,072)Cullen LLR Amethyst: Earned 1,000,000 credits (1,261,473)ESP LLR Gold: Earned 500,000 credits (535,630)Generalized Cullen/Woodall LLR Gold: Earned 500,000 credits (727,076)PPS LLR Gold: Earned 500,000 credits (575,694)PSP LLR Amethyst: Earned 1,000,000 credits (1,709,760)SoB LLR Amethyst: Earned 1,000,000 credits (1,516,446)SR5 LLR Amethyst: Earned 1,000,000 credits (1,056,683)SGS LLR Gold: Earned 500,000 credits (632,629)TRP LLR Ruby: Earned 2,000,000 credits (4,790,415)Generalized Cullen/Woodall Sieve Amethyst: Earned 1,000,000 credits (1,626,395)PPS Sieve Double Bronze: Earned 100,000,000 credits (130,370,054)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Gold: Earned 500,000 credits (555,042)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,089,296)AP 26/27 Ruby: Earned 2,000,000 credits (2,134,704)GFN Double Silver: Earned 200,000,000 credits (201,672,050)
Message 110891 - Posted: 18 Oct 2017 | 22:04:18 UTC - in response to Message 110889.

Thank you got it running. My last questions are - If I have 4 core but 8 for hyperthreading do I sill use 4 or 8 in the .xml file? Also no GPU support?


On a quad core CPU, disable hyperthreading in BIOS generally works best. You can also go into BOINC manager Options > Computing preferences to specify 'Use at most 50% of the CPUs' to use 4 of available 8 threads when hyperthreading is enabled on a quad core CPU. I prefer the first method.

No GPU app for TRP (LLR) - CPU, only.

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321 LLR Ruby: Earned 2,000,000 credits (4,015,911)Cullen LLR Ruby: Earned 2,000,000 credits (2,133,150)ESP LLR Ruby: Earned 2,000,000 credits (2,156,584)Generalized Cullen/Woodall LLR Ruby: Earned 2,000,000 credits (2,112,686)PPS LLR Ruby: Earned 2,000,000 credits (2,039,006)PSP LLR Ruby: Earned 2,000,000 credits (2,111,273)SoB LLR Ruby: Earned 2,000,000 credits (2,035,645)SR5 LLR Ruby: Earned 2,000,000 credits (2,083,914)SGS LLR Ruby: Earned 2,000,000 credits (2,897,962)TRP LLR Ruby: Earned 2,000,000 credits (2,114,031)Woodall LLR Ruby: Earned 2,000,000 credits (2,012,235)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (3,177,556)PPS Sieve Turquoise: Earned 5,000,000 credits (5,201,453)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,000,053)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,030,160)AP 26/27 Ruby: Earned 2,000,000 credits (2,433,886)GFN Sapphire: Earned 20,000,000 credits (21,211,034)PSA Emerald: Earned 50,000,000 credits (97,337,913)
Message 110892 - Posted: 18 Oct 2017 | 22:19:38 UTC - in response to Message 110889.

Thank you got it running. My last questions are - If I have 4 core but 8 for hyperthreading do I sill use 4 or 8 in the .xml file?

If you can disable HT, that's preferred option. If you can, go into Boinc settings and make it so that you only use 50% of the CPUs. Regardless, I suggest using t4, unless you want to leave a core free for something (say, a GPU)

Also no GPU support?

No, LLR doesn't support GPUs.

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Message 110893 - Posted: 19 Oct 2017 | 0:05:37 UTC

Stats after day 1:

Challenge: Diwali/Deepavali
App: 15 (TRP-LLR)
(As of 2017-10-19 00:00:10 UTC)

23008 tasks have been sent out. [CPU/GPU/anonymous_platform: 22966 (100%) / 0 (0%) / 42 (0%)]

Of those tasks that have been sent out:

1340 (6%) came back with some kind of an error. [1340 (6%) / 0 (0%) / 0 (0%)]
5079 (22%) have returned a successful result. [5044 (22%) / 0 (0%) / 35 (0%)]
16589 (72%) are still in progress. [16582 (72%) / 0 (0%) / 7 (0%)]

Of the tasks that have been returned successfully:

3601 (71%) are pending validation. [3576 (70%) / 0 (0%) / 25 (0%)]
1467 (29%) have been successfully validated. [1457 (29%) / 0 (0%) / 10 (0%)]
2 (0%) were invalid. [2 (0%) / 0 (0%) / 0 (0%)]
9 (0%) are inconclusive. [9 (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=8696159. The leading edge was at n=8611827 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 0.98% as much as it had prior to the challenge!


On a normal day, we do about 1000 TRP tasks, so depending on which number you use we're doing somewhere between 5x and 20x the normal daily processing.

Last time we found a TRP prime, we found 2 primes in 3 days. Can we find one during this challenge?
____________
My lucky number is 75898^524288+1
Please do not PM me with support questions. They will usually go unanswered. Ask on the forums instead. Thank you!

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Message 110901 - Posted: 19 Oct 2017 | 22:41:51 UTC

We are past the astronomical new moon of the Diwali which (wrt. the center of the Earth) occurred at 19:12 universal time (that is 00:42 Indian Standard Time). /JeppeSN

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Message 110902 - Posted: 20 Oct 2017 | 1:40:38 UTC

After 2 days:


Challenge: Diwali/Deepavali
App: 15 (TRP-LLR)
(As of 2017-10-20 01:39:41 UTC)

32979 tasks have been sent out. [CPU/GPU/anonymous_platform: 32898 (100%) / 0 (0%) / 81 (0%)]

Of those tasks that have been sent out:

2362 (7%) came back with some kind of an error. [2362 (7%) / 0 (0%) / 0 (0%)]
13396 (41%) have returned a successful result. [13323 (40%) / 0 (0%) / 73 (0%)]
17221 (52%) are still in progress. [17213 (52%) / 0 (0%) / 8 (0%)]

Of the tasks that have been returned successfully:

6685 (50%) are pending validation. [6643 (50%) / 0 (0%) / 42 (0%)]
6660 (50%) have been successfully validated. [6629 (49%) / 0 (0%) / 31 (0%)]
13 (0%) were invalid. [13 (0%) / 0 (0%) / 0 (0%)]
38 (0%) are inconclusive. [38 (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=8730467. The leading edge was at n=8611827 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 1.38% as much as it had prior to the challenge!

____________
My lucky number is 75898^524288+1
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321 LLR Silver: Earned 100,000 credits (334,368)Cullen LLR Silver: Earned 100,000 credits (162,040)ESP LLR Silver: Earned 100,000 credits (199,382)Generalized Cullen/Woodall LLR Silver: Earned 100,000 credits (240,770)PPS LLR Silver: Earned 100,000 credits (271,348)PSP LLR Gold: Earned 500,000 credits (852,494)SoB LLR Amethyst: Earned 1,000,000 credits (1,053,175)SR5 LLR Silver: Earned 100,000 credits (102,363)SGS LLR Silver: Earned 100,000 credits (198,889)TRP LLR Silver: Earned 100,000 credits (252,210)Woodall LLR Silver: Earned 100,000 credits (348,958)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (3,407,481)PPS Sieve Jade: Earned 10,000,000 credits (17,020,179)TRP Sieve (suspended) Silver: Earned 100,000 credits (156,305)AP 26/27 Silver: Earned 100,000 credits (384,085)GFN Jade: Earned 10,000,000 credits (16,114,929)
Message 110905 - Posted: 20 Oct 2017 | 6:29:16 UTC

Hi.
In the beginning I had some tasks which ran quite long, and now the tasks finish after significantly less time.
Is there a reason for this on the project side?
Thanks.
____________
Greetings, Jens

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321 LLR Amethyst: Earned 1,000,000 credits (1,169,719)Cullen LLR Amethyst: Earned 1,000,000 credits (1,157,331)ESP LLR Amethyst: Earned 1,000,000 credits (1,179,211)Generalized Cullen/Woodall LLR Amethyst: Earned 1,000,000 credits (1,330,821)PPS LLR Amethyst: Earned 1,000,000 credits (1,254,873)PSP LLR Ruby: Earned 2,000,000 credits (2,632,269)SoB LLR Ruby: Earned 2,000,000 credits (2,067,903)SR5 LLR Turquoise: Earned 5,000,000 credits (6,048,315)SGS LLR Amethyst: Earned 1,000,000 credits (1,680,461)TRP LLR Amethyst: Earned 1,000,000 credits (1,051,744)Woodall LLR Amethyst: Earned 1,000,000 credits (1,145,077)321 Sieve (suspended) Silver: Earned 100,000 credits (200,576)Cullen/Woodall Sieve (suspended) Ruby: Earned 2,000,000 credits (4,170,256)Generalized Cullen/Woodall Sieve Ruby: Earned 2,000,000 credits (2,085,723)PPS Sieve Jade: Earned 10,000,000 credits (18,162,350)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,035,522)TRP Sieve (suspended) Ruby: Earned 2,000,000 credits (2,051,121)AP 26/27 Turquoise: Earned 5,000,000 credits (5,877,196)GFN Sapphire: Earned 20,000,000 credits (40,338,631)PSA Turquoise: Earned 5,000,000 credits (9,426,791)
Message 110906 - Posted: 20 Oct 2017 | 7:55:30 UTC - in response to Message 110905.

Hi.
In the beginning I had some tasks which ran quite long, and now the tasks finish after significantly less time.
Is there a reason for this on the project side?
Thanks.


I don't have a definite explanation for the difference. It's not something one would expect to see.

The only thing that comes to mind is that perhaps the computer is significantly overheating and the CPU is slowing down to lower the temperature and protect the CPU?

Another possibility is that the earlier tasks ran while hyperthreading was turned off (or only 4 threads were active), and later tasks were run with hyperthreading turned on and all 8 threads running LLR.

Both scenarios would effectively cause the CPU to slow down. It looks as if the CPU is indeed running slower on the later tasks, but I can't tell from here what the cause might be.
____________
My lucky number is 75898^524288+1
Please do not PM me with support questions. They will usually go unanswered. Ask on the forums instead. Thank you!

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