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Number crunching :
World Cup Challenge
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Welcome to the World Cup Challenge
The fourth Challenge of the 2018 Challenge series is a 5 day challenge to celebrate the 2018 International Football World Cup. The challenge is being offered on the Sierpinski/Riesel Base 5 (LLR) application.
The 2018 FIFA World Cup™ in Russia is the 21st edition of the single biggest tournament for the single biggest sport on the planet, and the first to be held in Eastern Europe.
Of the 32 teams, 20 will be making back-to-back appearances following the last tournament in 2014, including defending champions Germany, while Iceland and Panama will both be making their first appearances at a FIFA World Cup™. A total of 64 matches will be played in 12 venues located in 11 cities.
It all begins on June 14 and culminates with the final in Moscow on July 15.
To participate in the Challenge, please select only the Sierpinski / Riesel Base 5 LLR (SR5) project in your PrimeGrid preferences section. The challenge will begin 14th June 2018 00:00 UTC and end 19th June 2018 00:00 UTC.
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 on one CPU core will take ~6 hours on fast/newer computers and 1+ day 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 SR5 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 optimisation instructions
Those looking to maximise 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 an Intel CPU with hyperthreading, either turn off the hyperthreading 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.
- Use LLR's multithreaded mode. It requires a little bit of setup, but it's worth the effort. Follow these steps:
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 14th June 2018 00:00 UTC and received BEFORE 19th June 2018 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 SR5 Project
Sierpinski Base 5 - The smallest even Sierpinski base 5 number is suggested to be k=159986. To prove this, it is sufficient to show that k*5^n+1 is prime for each even k < 159986. This has currently been achieved for all even k, with the exception of the following 33 values (as of 15 March 2016):
k = 6436, 7528, 10918, 26798, 29914, 31712, 36412, 41738, 44348, 44738, 45748, 51208, 58642, 60394, 62698, 64258, 67612, 67748, 71492, 74632, 76724, 81556, 83936, 84284, 90056, 92906, 93484, 105464, 118568, 126134, 138514, 139196, 152588 Riesel Base 5 -
The smallest even Riesel base 5 number is suggested to be k=346802. To prove this, it is sufficient to show that k*5^n-1 is prime for each even k < 346802. This has currently been achieved for all even k, with the exception of the following 72 values (as of 17 September 2017):
k = 3622, 4906, 23906, 26222, 35248, 35816, 52922, 63838, 64598, 66916, 68132, 71146, 76354, 81134, 88444, 92936, 102818, 102952, 109238, 109838, 109862, 127174, 131848, 134266, 136804, 143632, 145462, 145484, 146264, 146756, 147844, 151042, 152428, 154844, 159388, 164852, 170386, 170908, 177742, 182398, 187916, 189766, 190334, 194368, 195872, 201778, 204394, 206894, 207494, 213988, 231674, 238694, 239062, 239342, 246238, 248546, 259072, 265702, 267298, 271162, 273662, 285598, 285728, 298442, 304004, 313126, 318278, 322498, 325922, 327926, 335414, 338866 History
Robert Smith originally presented the idea of a Sierpinski/Riesel base 5 search on 17 September 2004, in the primeform yahoo group. Using {3,7,13,31,601} as the covering set, he proposed that k=346802 is the smallest Riesel base 5 number. Shortly afterwards, Guido Smetrijns proposed that k=159986 is the smallest Sierpinski base 5 number.
After doing most of the initial work himself, Robert posted in the mersenneforum.org on 28 September 2004, and thus, the distributed effort began. Other principle players in the development, management, and growth of the project are Lars Dausch, Geoff Reynolds, Anand S Nair, and Thomas Masser.[/list]
Primes found by PrimeGrid
301562*5^2408646-1 found by Håkan Lind on 17 September 2017 | Official Announcement
171362*5^2400996-1 found by Frank Schwegler on 25 August 2017 | Official Announcement
180062*5^2249192-1 found by Stefan Larsson on 20 August 2016 | Official Announcement
53546*5^2216664-1 found by Tom Greer on 30 May 2016 | Official Announcement
296024*5^2185270-1 found by Steven Wong on 25 March 2016 | Official Announcement
92158*5^2145024+1 found by Karl Burridge on 15 March 2016 | Official Announcement
77072*5^2139921+1 found by flex on 6 March 2016 | Official Announcement
306398*5^2112410-1 found by NocFlame on 11 January 2016 | Official Announcement
154222*5^2091432+1 found by Scott Brown on 10 November 2015 | Official Announcement
100186*5^2079747-1 found by Toshitaka Kumagai on 21 October 2015 | Official Announcement
144052*5^2018290+1 found by Artist on 23 May 2015 | Official Announcement
109208*5^1816285+1 found by Scott Brown on 18 October 2014 | Official Announcement
325918*5^1803339-1 found by Jörg Meili on 21 September 2014 | Official Announcement
133778*5^1785689+1 found by Guo Hua Miao on 17 August 2014 | Official Announcement
24032*5^1768249+1 found by Hiroyuki Okazaki on 23 July 2014 | Official Announcement
138172*5^1714207-1 found by Walter Darimont on 27 June 2014 | Official Announcement
22478*5^1675150-1 found by Guo Hua Miao on 19 June 2014 | Official Announcement
326834*5^1634978-1 found by Scott Brown on 25 April 2014 | Official Announcement
207394*5^1612573-1 found by Honza Cholt on 9 April 2014 | Official Announcement
104944*5^1610735-1 found by Brian Smith on 9 April 2014 | Official Announcement
330286*5^1584399-1 found by Scott Brown on 21 March 2014 | Official Announcement
22934*5^1536762-1 found by Keishi Toda on 6 February 2014 | Official Announcement
178658*5^1525224-1 found by Keishi Toda on 31 January 2014 | Official Announcement
59912*5^1500861+1 found by Raymond Ottusch on 17 January 2014 | Official Announcement
37292*5^1487989+1 found by Stephen R Cilliers on 29 December 2013 | Official Announcement
173198*5^1457792-1 found by Motohiro Ohno on 4 December 2013 | Official Announcement
245114*5^1424104-1 found by David Yost on 1 November 2013
175124*5^1422646-1 found by David Yost on 31 October 2013
256612*5^1335485-1 found by Wolfgang Schwieger on 4 August 2013
268514*5^1292240-1 found by Raymond Schouten on 16 July 2013
243944*5^1258576-1 found by Tod Slakans on 5 July 2013
97366*5^1259955-1 found by Jörg Meili on 4 July 2013
84466*5^1215373-1 found by Raymond Schouten on 29 June 2013
150344*5^1205508-1 found by Randy Ready on 28 June 2013
1396*5^1146713-1 found by Randy Ready on 23 June 2013
17152*5^1131205-1 found by Bob Benson on 22 June 2013
92182*5^1135262+1 found by Randy Ready on 21 June 2013
329584*5^1122935-1 found by Stephen R Cilliers on 21 June 2013
305716*5^1093095-1 found by Randy Ready on 18 June 2013
130484*5^1080012-1 found by Randy Ready on 17 June 2013
97768*5^987383-1 found by Ulrich Hartel on 17 June 2013
55154*5^1063213+1 found by Senji Yamashita on 16 June 2013
243686*5^1036954-1 found by Katsumi Hirai on 16 June 2013
70082*5^936972-1 found by Scott Brown on 30 May 2013
102976*5^929801-1 found by David Yost on 9 May 2013
110488*5^917100+1 found by Ronny Willig on 25 March 2013
162434*5^856004-1 found by Predrag Kurtovic on 10 January 2013
174344*5^855138-1 found by Ronny Willig on 9 January 2013
57406*5^844253-1 found by David Yost on 7 November 2012
48764*5^831946-1 found by David Yost on 12 October 2012
162668*5^785748-1 found by Lennart Vogel on 3 July 2012
289184*5^770116-1 found by David Yost on 7 June 2012
11812*5^769343-1 found by Göran Schmidt on 2 June 2012
316594*5^766005-1 found by Michael Becker on 30 May 2012
340168*5^753789-1 found by Kimmo Myllyvirta on 18 May 2012
338948*5^743996-1 found by Ricky L Hubbard on 7 May 2012
18656*5^735326-1 found by Lennart Vogel on 3 May 2012
5374*5^723697-1 found by Kelvin Lewis on 13 April 2012
72532*5^708453-1 found by Göran Schmidt on 7 February 2012
2488*5^679769-1 found by Sascha Beat Dinkel on 24 November 2011
331882*5^674961-1 found by Ronny Willig on 11 November 2011
27994*5^645221-1 found by Philipp Bliedung on 18 July 2011
262172*5^643342-1 found by Kimmo Myllyvirta on 13 July 2011
49568*5^640900-1 found by Sascha Beat Dinkel on 1 July 2011
270748*5^614625-1 found by Puzzle Peter on 14 February 2011
266206*5^608649-1 found by Puzzle Peter on 10 February 2011
210092*5^618136-1 found by Puzzle Peter on 31 January 2011
301016*5^586858-1 found by Puzzle Peter on 24 January 2011
Primes found by SR5 since collaboration
109988*5^544269+1 found by ltd on 23 April 2011
68492*5^542553+1 found by ltd on 24 April 2011
Primes found by others
114986*5^1052966-1 found by Sergey Batalov on 3 June 2013
119878*5^1019645-1 found by Sergey Batalov on 3 June 2013
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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On an HP DL380 server with 2 Xeon QuadCore (2 Threads/Core) CPU's the following app_config.xml is in use:
<app_config>
<app>
<name>llrSR5</name>
<fraction_done_exact/>
<max_concurrent>1</max_concurrent>
</app>
<app_version>
<app_name>llrSR5</app_name>
<cmdline>-t 16</cmdline>
<avg_ncpus>16</avg_ncpus>
</app_version>
</app_config>
However when using top (Linux) the average %CPU is only between 850-900 instead of the theoretical max. of 1600%.
So with the upcoming challenge in mind what changes (if any) are advisable to this app_config.xml ?
Thanks, Walter
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mackerel Volunteer tester
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However when using top (Linux) the average %CPU is only between 850-900 instead of the theoretical max. of 1600%.
So with the upcoming challenge in mind what changes (if any) are advisable to this app_config.xml ?
Multi-socket isn't something I looked at too closely, but I've seen problems scaling beyond around 8 threads, and worse if crossing sockets. If your OS is smart enough, try one task per socket. | |
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I know nothing at all about multi-socket or Linux either, but I suspect this line might be the culprit:
<max_concurrent>1</max_concurrent>
This will only allow 1 task to run at a time as far as I know, at least on single CPU systems. If you change it to:
<max_concurrent>2</max_concurrent>
what happens?
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I often ask for help with configs myself, so I am no expert.
Max concurrent means how many tasks will you allow the machine to run at one time?
I personally would try changing both '16's to '8's and max concurrent to two. This will allow you to run 2 tasks at a time, each using 8 threads. Probably... :D
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Michael GoetzVolunteer moderator
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You really shouldn't be using max_concurrent to (try to) control the number of tasks that are running. In fact, you should remove the <app> block entirely.
It's <cmdline>-t 16</cmdline> and <avg_ncpus>16</avg_ncpus> that are important here.
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Michael GoetzVolunteer moderator
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REMINDER!
The challenge starts at 00:00:00 instead of the normal 18:00:00. Don't be 18 hours late to the party!
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My lucky number is 75898524288+1 | |
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I often ask for help with configs myself, so I am no expert.
Max concurrent means how many tasks will you allow the machine to run at one time?
I personally would try changing both '16's to '8's and max concurrent to two. This will allow you to run 2 tasks at a time, each using 8 threads. Probably... :D
Done exactly that and the result is 2 SR5 tasks running using on average of 650 to 700% CPU each,
so in total about 1400% CPU instead of the theor. max of 1600%. An improvement certainly, and probably better than running 4 SR5 tasks (4 threads each).. but we will see.
Greetz, Walter | |
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Michael GoetzVolunteer moderator
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You should get rid of the entire <app> section. <Max_concurrent> is not what you want to use here.
It's the <cmd_line> and <avg_ncpus> tags inside the <app_version> section that control how many cores each task uses. The number of available cores divided by the number of cores per tasks yields the number of tasks that will run simultaneously.
Since you have a hyperthreaded CPU you should either disable hyperthreading in the BIOS or, alternatively, set BOINC to use "50% of the CPUs".
For your dual Xenon system, I'd recommend one of the following:
1 single task running on all 8 physical cores on both CPUs:
<app_config>
<app_version>
<app_name>llrSR5</app_name>
<cmdline>-t 8</cmdline>
<avg_ncpus>8</avg_ncpus>
</app_version>
</app_config>
2 tasks, each running on 4 physical cores. Hopefully the OS is smart enough to run each task entirely on a single CPU:
<app_config>
<app_version>
<app_name>llrSR5</app_name>
<cmdline>-t 4</cmdline>
<avg_ncpus>4</avg_ncpus>
</app_version>
</app_config>
In both cases, BOINC should be configured to only use "50% of the CPUs", effectively disabling hyperthreading. Most OSes are smart enough to first use the physical cores before using the hyperthreads.
I haven't used a dual CPU system myself, so I don't know which of those two options will produce better results. I suspect the second option may be better, but that's just a guess. You'll need to try both to see which works better.
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My lucky number is 75898524288+1 | |
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Dad
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HooRah
A challenge that starts at a decent time for us southerners!!
Dad
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Tonight's lucky numbers are
555*2^3563328+1 (PPS-MEGA)
and
58523466^131072+1 (GFN-17 MEGA) | |
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Dave
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Whatever. But I'm ready to roll on. I have a PSP that might finish under an hour before. Another PSP I'm not taking chances with as I obviously don't know the FFT size I'll get. | |
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We encourage you to experiment and see what works best for you.
Note, if you run tests with different configs, you must not rely on the run times which will be reported here on the primegrid web site in your task list. In my most recent experience, these times are always wrong (too high).
This is a long-known problem if the client downloaded more than one task in the same request. But for me this happens also if the client downloaded just one task.
You need to take the run times from the local log of the client instead. (Or time the execution of sllr.exe outside of boinc-client.)
In extension, if you don't test yourself but rely on performance reports of others, then disregard such reports if you are not sure if the reporter tracked run time correctly. | |
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Dad
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I switched all my PC's to SGS yesterday (a bit early but I have some SLOW PC's) and I'm glad I did 'cause I got my first prime in the SGS subproject and I might have enough time to get SGS Gold before the challenge starts (82,000ish away at the moment)
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Tonight's lucky numbers are
555*2^3563328+1 (PPS-MEGA)
and
58523466^131072+1 (GFN-17 MEGA) | |
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You should get rid of the entire <app> section. <Max_concurrent> is not what you want to use here.
It's the <cmd_line> and <avg_ncpus> tags inside the <app_version> section that control how many cores each task uses. The number of available cores divided by the number of cores per tasks yields the number of tasks that will run simultaneously.
Since you have a hyperthreaded CPU you should either disable hyperthreading in the BIOS or, alternatively, set BOINC to use "50% of the CPUs".
For your dual Xenon system, I'd recommend one of the following:
1 single task running on all 8 physical cores on both CPUs:
<app_config>
<app_version>
<app_name>llrSR5</app_name>
<cmdline>-t 8</cmdline>
<avg_ncpus>8</avg_ncpus>
</app_version>
</app_config>
2 tasks, each running on 4 physical cores. Hopefully the OS is smart enough to run each task entirely on a single CPU:
<app_config>
<app_version>
<app_name>llrSR5</app_name>
<cmdline>-t 4</cmdline>
<avg_ncpus>4</avg_ncpus>
</app_version>
</app_config>
In both cases, BOINC should be configured to only use "50% of the CPUs", effectively disabling hyperthreading. Most OSes are smart enough to first use the physical cores before using the hyperthreads.
I haven't used a dual CPU system myself, so I don't know which of those two options will produce better results. I suspect the second option may be better, but that's just a guess. You'll need to try both to see which works better.
Disabled Hyperthreading in the Bios and running 2 tasks, each running on 4 physical cores.
It seems Linux is smart enough to run each task entirely on a single CPU using following
app_config.xml in /var/lib/boinc-client/projects/www.primegrid.com (Linux Mint V17.1):
<app_config>
<app_version>
<app_name>llrSR5</app_name>
<cmdline>-t 4</cmdline>
<avg_ncpus>4</avg_ncpus>
</app_version>
</app_config>
Top (Linux) shows a total %CPU of 750% (out of 800% Theor. max, since Hyperthreading was disabled)
So i will use these settings during the challenge
Thanks.
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I switched all my PC's to SGS yesterday (a bit early but I have some SLOW PC's)
A) The challenge is for SR5
2) Only tasks downloaded after the start time (and returned before the end) will count | |
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MonkeydeeVolunteer tester
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I switched all my PC's to SGS yesterday (a bit early but I have some SLOW PC's)
A) The challenge is for SR5
2) Only tasks downloaded after the start time (and returned before the end) will count
One strategy is to switch to quick tasks, like SGS, before a challenge so that you have the minimum "lost time" when you switch to the challenge project at very beginning of the challenge.
Nothing worse than having an SoB start one hour before the start and then having to choose whether to abort it or let it finish.
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My Primes
Badge Score: 4*2 + 6*2 + 7*4 + 8*9 + 11*3 + 12*1 = 165
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One strategy is to switch to quick tasks, like SGS, before a challenge so that you have the minimum "lost time" when you switch to the challenge project at very beginning of the challenge.
Nothing worse than having an SoB start one hour before the start and then having to choose whether to abort it or let it finish.
Well I feel dumb now. lol
Time for bed, brain must have checked out a few hours ago. | |
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Dad
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You got it in 1 Keith
____________
Tonight's lucky numbers are
555*2^3563328+1 (PPS-MEGA)
and
58523466^131072+1 (GFN-17 MEGA) | |
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Dad
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Good luck to all in the challenge, may your (World Cup) team play well and fairly, while they are beaten by Australia ;)
____________
Tonight's lucky numbers are
555*2^3563328+1 (PPS-MEGA)
and
58523466^131072+1 (GFN-17 MEGA) | |
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Dad
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What ever it takes Walter, esp. as the Kiwi's aren't in it
____________
Tonight's lucky numbers are
555*2^3563328+1 (PPS-MEGA)
and
58523466^131072+1 (GFN-17 MEGA) | |
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MonkeydeeVolunteer tester
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After a 12 hour internet outage I am finally back online!
Time to make up some lost ground...
____________
My Primes
Badge Score: 4*2 + 6*2 + 7*4 + 8*9 + 11*3 + 12*1 = 165
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Question about SR5:
Why are we looking specifically at EVEN base 5 Sierpinski/Riesel numbers? Is it so LLR and Proth tests work? Are we using the 5^[huge number] as the k and testing 2^[small number]? | |
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Michael GoetzVolunteer moderator
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Why are we looking specifically at EVEN base 5 Sierpinski/Riesel numbers?
I assume you mean "Why does the problem only consider EVEN values of k?"
k * 5^n ±1 <-- This is the form of an SR5 (Sierpinski base 5 or Riesel base 5)
5 (or 5^1) is odd
25 (or 5^2) is odd
125 (or 5^3) is odd
625 (or 5^4) is odd
...
No matter what n may be, 5^n is going to be odd.
An even number multiplied by an odd number will always be even.
An odd number multiplied by an odd number will always be odd.
If k were to be odd, then k*5^n would have to be odd too, and therefore k*5n±1 would have to be even. There's no reason to test an even number (>2) for primality since we know it's composite. This is the reason we only test even values of k; we know any odd k can only yield composite (specifically, even) numbers.
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Are any special badges awarded? | |
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Michael GoetzVolunteer moderator
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Are any special badges awarded?
For the challenge itself, no. For finding a prime, yes. Two of them, actually. One for finding a mega prime, and another for eliminating a k from a conjecture.
____________
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Michael GoetzVolunteer moderator
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The first day of the challenge is behind us:
Challenge: World Cup
App: 19 (SR5-LLR)
(As of 2018-06-15 01:47:39 UTC)
34898 tasks have been sent out. [CPU/GPU/anonymous_platform: 34872 (100%) / 0 (0%) / 26 (0%)]
Of those tasks that have been sent out:
2415 (7%) came back with some kind of an error. [2415 (7%) / 0 (0%) / 0 (0%)]
12938 (37%) have returned a successful result. [12913 (37%) / 0 (0%) / 25 (0%)]
19546 (56%) are still in progress. [19545 (56%) / 0 (0%) / 1 (0%)]
Of the tasks that have been returned successfully:
7713 (60%) are pending validation. [7697 (59%) / 0 (0%) / 16 (0%)]
5177 (40%) have been successfully validated. [5168 (40%) / 0 (0%) / 9 (0%)]
12 (0%) were invalid. [12 (0%) / 0 (0%) / 0 (0%)]
36 (0%) are inconclusive. [36 (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=2552752. The leading edge was at n=2531498 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 0.84% as much as it had prior to the challenge!
Normally we process about 700 SR5 tasks per day, so the challenge is doing over 15 times the normal rate. Will we find a prime?
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My lucky number is 75898524288+1 | |
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Russia 5 Saudi Arabia 0
What a good start to the Tournament. Russia played well, and Saudis outclassed. Makes you wonder how the Aussies will fair against France & Denmark. But everyone likes goals. :-)
Gah! I can't even come to a MATH website w/o spoilers??? I knew I had to avoid ESPN, but PrimeGrid?
j/k (mostly) | |
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You don't want any spoilers?
I don't want to read anything about soccer.
I'm just not interested in it.
I am interested in Primes though. ^^
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Greetings, Jens
147433824^131072+1 | |
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Long time cruncher, first time poster.... Can somebody explain how the "score" is tabulated? Is it simply a cumulative from each awarded WU?
Thanks! | |
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Michael GoetzVolunteer moderator
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Long time cruncher, first time poster.... Can somebody explain how the "score" is tabulated? Is it simply a cumulative from each awarded WU?
Thanks!
From the main post for the challenge:
Scoring Information
Scores will be kept for individuals and teams. Only tasks issued AFTER 14th June 2018 00:00 UTC and received BEFORE 19th June 2018 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.
The credit for each task you successfully and correctly return is added up. That's your score.
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Michael GoetzVolunteer moderator
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After two days:
Challenge: World Cup
App: 19 (SR5-LLR)
(As of 2018-06-16 01:16:46 UTC)
54104 tasks have been sent out. [CPU/GPU/anonymous_platform: 54052 (100%) / 0 (0%) / 52 (0%)]
Of those tasks that have been sent out:
3057 (6%) came back with some kind of an error. [3057 (6%) / 0 (0%) / 0 (0%)]
27945 (52%) have returned a successful result. [27894 (52%) / 0 (0%) / 51 (0%)]
23102 (43%) are still in progress. [23101 (43%) / 0 (0%) / 1 (0%)]
Of the tasks that have been returned successfully:
12695 (45%) are pending validation. [12671 (45%) / 0 (0%) / 24 (0%)]
15132 (54%) have been successfully validated. [15105 (54%) / 0 (0%) / 27 (0%)]
54 (0%) were invalid. [54 (0%) / 0 (0%) / 0 (0%)]
64 (0%) are inconclusive. [64 (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=2564849. The leading edge was at n=2531498 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 1.32% as much as it had prior to the challenge!
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You don't want any spoilers?
I don't want to read anything about soccer.
I'm just not interested in it.
I am interested in Primes though. ^^
World Cup (soccer) was moved to a separate thread
Do any soccer posts there, please!
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Sysadm@Nbg
my current lucky number: 113856050^65536 + 1
PSA-PRPNet-Stats-URL: http://u-g-f.de/PRPNet/
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Three days done, two to go:
Challenge: World Cup
App: 19 (SR5-LLR)
(As of 2018-06-17 00:06:31 UTC)
72978 tasks have been sent out. [CPU/GPU/anonymous_platform: 72902 (100%) / 0 (0%) / 76 (0%)]
Of those tasks that have been sent out:
3839 (5%) came back with some kind of an error. [3839 (5%) / 0 (0%) / 0 (0%)]
44261 (61%) have returned a successful result. [44186 (61%) / 0 (0%) / 75 (0%)]
24878 (34%) are still in progress. [24877 (34%) / 0 (0%) / 1 (0%)]
Of the tasks that have been returned successfully:
15793 (36%) are pending validation. [15766 (36%) / 0 (0%) / 27 (0%)]
28259 (64%) have been successfully validated. [28211 (64%) / 0 (0%) / 48 (0%)]
109 (0%) were invalid. [109 (0%) / 0 (0%) / 0 (0%)]
100 (0%) are inconclusive. [100 (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=2576646. The leading edge was at n=2531498 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 1.78% as much as it had prior to the challenge!
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Looking at log(n) of the last 71 gaps between prime finds:
- min in progress to last prime find now the 9th largest gap
- max in progress to last prime find now the 4th largest gap
Finding primes is a Gaussian process, so doesn't care how big the gap is, but we're quite far up the curb.
If we get to n=2,600,000 by the end of the Challenge the gap to last prime find would be the 2nd largest out of 71 gaps.
You need to get to n=2,677,000 for the gap to be larger than all the last 71 gaps.
Whether your using log base 10 or natural log, you get the same results.
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The good news is that so far, we've found 2 mega primes during this challenge.
The bad news is neither of them are an SR5. The first was a GFN-17-MEGA and the second is a GFN-18.
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The good news is that so far, we've found 2 mega primes during this challenge.
The bad news is neither of them are an SR5. The first was a GFN-17-MEGA and the second is a GFN-18.
more than 24 hours left there is a chance to find at most one SR5 prime during challenge - hope dies last ;-)
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my current lucky number: 113856050^65536 + 1
PSA-PRPNet-Stats-URL: http://u-g-f.de/PRPNet/
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One day to go!
Challenge: World Cup
App: 19 (SR5-LLR)
(As of 2018-06-18 00:20:18 UTC)
92230 tasks have been sent out. [CPU/GPU/anonymous_platform: 92121 (100%) / 0 (0%) / 109 (0%)]
Of those tasks that have been sent out:
4648 (5%) came back with some kind of an error. [4648 (5%) / 0 (0%) / 0 (0%)]
62627 (68%) have returned a successful result. [62520 (68%) / 0 (0%) / 107 (0%)]
24955 (27%) are still in progress. [24953 (27%) / 0 (0%) / 2 (0%)]
Of the tasks that have been returned successfully:
17475 (28%) are pending validation. [17439 (28%) / 0 (0%) / 36 (0%)]
44832 (72%) have been successfully validated. [44761 (71%) / 0 (0%) / 71 (0%)]
174 (0%) were invalid. [174 (0%) / 0 (0%) / 0 (0%)]
146 (0%) are inconclusive. [146 (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=2588806. The leading edge was at n=2531498 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 2.26% as much as it had prior to the challenge!
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With about half a day remaining in the challenge, it's time to remind everyone...
At the Conclusion of the Challenge
We would prefer users "moving on" to finish those tasks they have downloaded, if not then please ABORT the WU's (and then UPDATE the PrimeGrid project) instead of DETACHING, RESETTING, or PAUSING.
ABORTING WU's allows 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. Thank you!
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And we're done!
Final statistics:
Challenge: World Cup
App: 19 (SR5-LLR)
(As of 2018-06-19 00:43:14 UTC)
108153 tasks have been sent out. [CPU/GPU/anonymous_platform: 107999 (100%) / 0 (0%) / 154 (0%)]
Of those tasks that have been sent out:
7534 (7%) came back with some kind of an error. [7534 (7%) / 0 (0%) / 0 (0%)]
81966 (76%) have returned a successful result. [81814 (76%) / 0 (0%) / 152 (0%)]
16706 (15%) are still in progress. [16706 (15%) / 0 (0%) / 0 (0%)]
Of the tasks that have been returned successfully:
15107 (18%) are pending validation. [15074 (18%) / 0 (0%) / 33 (0%)]
66426 (81%) have been successfully validated. [66308 (81%) / 0 (0%) / 118 (0%)]
280 (0%) were invalid. [280 (0%) / 0 (0%) / 0 (0%)]
153 (0%) are inconclusive. [152 (0%) / 0 (0%) / 1 (0%)]
The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is n=2597590. The leading edge was at n=2531498 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 2.61% as much as it had prior to the challenge!
Great challenge everyone! In a 5 day period, normally we would have done about 3500 SR5 tasks. We did over 20 times that.
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Now the cleanup starts..
World Cup:
June 18: World Cup: 15264 tasks outstanding; 14430 affecting individual (297) scoring positions; 8584 affecting team (78) scoring positions.
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My lucky number is 75898524288+1 | |
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Thanks again for a fun challenge!
I'm looking forward to the next one. :-)
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Greetings, Jens
147433824^131072+1 | |
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Btw.: When will we see the final standings for 2017?
The Challenge Series leader boards are up only until 2016.
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Greetings, Jens
147433824^131072+1 | |
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Yes ty for challenge. I thought it was a load of balls...;)! Taking SR5 to 3M. Back on AP27. | |
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gemini8 wrote: Btw.: When will we see the final standings for 2017?
The Challenge Series leader boards are up only until 2016.
The 2016 standings were abandoned before they were complete. 2016 Winter Solstice Challenge wasn't added anymore.
2017 standings were done, however. They are only linked from the 2017 season page.
See thread Number crunching: Consolidated challenge results?. | |
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I see.
Thanks. :-)
*edit*
Ah, I remember I saw that.
Didn't find anything through this years link when looking earlier although it was possible to see everything until 2016.
Any chance this issue could be fixed?
*end edit*
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Greetings, Jens
147433824^131072+1 | |
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Michael GoetzVolunteer moderator
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Now the cleanup starts..
World Cup:
June 18: World Cup: 15264 tasks outstanding; 14430 affecting individual (297) scoring positions; 8584 affecting team (78) scoring positions.
June 19: World Cup: 12307 tasks outstanding; 10858 affecting individual (295) scoring positions; 6493 affecting team (72) scoring positions.
____________
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RogerVolunteer developer
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Gooooal! Gooooal! An SR5 prime has just been reported, in extra time. Umpire is checking the goal-line technology (GLT). Estimate 5 hours for the result to be confirmed.
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WOW ! | |
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The good news is that so far, we've found 2 mega primes during this challenge.
The bad news is neither of them are an SR5. The first was a GFN-17-MEGA and the second is a GFN-18.
more than 24 hours left there is a chance to find at most one SR5 prime during challenge - hope dies last ;-)
can I call myself prophet? ;-)
great news!
____________
Sysadm@Nbg
my current lucky number: 113856050^65536 + 1
PSA-PRPNet-Stats-URL: http://u-g-f.de/PRPNet/
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RogerVolunteer developer
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Prime is confirmed!
327926*5^2542838-1
http://primes.utm.edu/primes/page.php?id=125390
Congratulations to stsuji of Team 2ch.
The workunit is http://www.primegrid.com/workunit.php?wuid=571702173
That eliminates the Riesel k=327926 from the conjecture. | |
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Congratulations to stsuji !
Roger wrote: ...
The workunit is http://www.primegrid.com/workunit.php?wuid=571702173
...
That's impressive.
It took stsuji a bit more than 39 hours.
The other guy, HA-SOFT, s.r.o., received the same task 10 minutes before stsuji, but aborted it.
Had he not, he would have finished it first.
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Congratulations to stsuji !
Roger wrote: ...
The workunit is http://www.primegrid.com/workunit.php?wuid=571702173
...
That's impressive.
It took stsuji a bit more than 39 hours.
The other guy, HA-SOFT, s.r.o., received the same task 10 minutes before stsuji, but aborted it.
Had he not, he would have finished it first.
Noooooooooooooo! ultimate PGers nightmare!
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My lucky numbers 10590941048576+1 and 224584605939537911+81292139*23#*n for n=0..26 | |
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Congratulations to stsuji !
Roger wrote: ...
The workunit is http://www.primegrid.com/workunit.php?wuid=571702173
...
That's impressive.
It took stsuji a bit more than 39 hours.
The other guy, HA-SOFT, s.r.o., received the same task 10 minutes before stsuji, but aborted it.
Had he not, he would have finished it first.
Noooooooooooooo! ultimate PGers nightmare!
Congrats stsuji!
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My lucky numbers 10590941048576+1 and 224584605939537911+81292139*23#*n for n=0..26 | |
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Congrats from me as well! :-)
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Greetings, Jens
147433824^131072+1 | |
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It took stsuji a bit more than 39 hours.
The other guy, HA-SOFT, s.r.o., received the same task 10 minutes before stsuji, but aborted it.
Had he not, he would have finished it first.
Noooooooooooooo! ultimate PGers nightmare!
It wasn't.
The work-unit was aborted after stsuji finished it.
I think both of them got a bunch of work-units at the beginning of the challenge which should (and did) last to the end, so that they could optimize their average run-times by crunching smaller work-units all the time.
Don't know if stsuji would have aborted the rest of his work as well.
I personally don't like to have my machines sucking themselves full because chances should be higher to be a prime-finder if I'm getting fresh work all the time as any wing-man could have finished earlier than me.
Both crunchers had the chance to finish this work-unit within the first few hours of the challenge, so I think stsuji was very, very lucky to actually be the finder. :-)
____________
Greetings, Jens
147433824^131072+1 | |
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Michael GoetzVolunteer moderator
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World Cup:
June 18: World Cup: 15264 tasks outstanding; 14430 affecting individual (297) scoring positions; 8584 affecting team (78) scoring positions.
June 19: World Cup: 12307 tasks outstanding; 10858 affecting individual (295) scoring positions; 6493 affecting team (72) scoring positions.
June 20: World Cup: 8653 tasks outstanding; 7549 affecting individual (291) scoring positions; 2892 affecting team (60) scoring positions.
____________
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Michael GoetzVolunteer moderator
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"Was it the same cat?"
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My lucky number is 75898524288+1 | |
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"Was it the same cat?"
Hmmm... Déjà vu quote from the Matrix.
Did we find another? | |
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RogerVolunteer developer
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Goooal! Goooal! Gooal!
Team Sierpinski strikes back deep in extra time to level the scores 1-1.
Umpires conferring with the GLT system once again.
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This is unreal! The crowds are now doing the wave! | |
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It's been verified as prime.
We're in the process of contacting the finder so we can't report it yet. | |
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Michael Goetz wrote: "Was it the same cat?"
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Goooal! Goooal! Gooal!
Team Sierpinski strikes back deep in extra time to level the scores 1-1.
Umpires conferring with the GLT system once again.
Nice. The match is more exciting than ever. I hope the referee forgets to blow for full-time. /JeppeSN | |
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Amazing! | |
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Michael GoetzVolunteer moderator
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World Cup:
June 18: World Cup: 15264 tasks outstanding; 14430 affecting individual (297) scoring positions; 8584 affecting team (78) scoring positions.
June 19: World Cup: 12307 tasks outstanding; 10858 affecting individual (295) scoring positions; 6493 affecting team (72) scoring positions.
June 20: World Cup: 8653 tasks outstanding; 7549 affecting individual (291) scoring positions; 2892 affecting team (60) scoring positions.
June 21: World Cup: 6557 tasks outstanding; 5623 affecting individual (285) scoring positions; 2167 affecting team (50) scoring positions.
____________
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Prime finder gave us his real name and permission to report the prime.
Congrats to user boceli of Czech National Team.
Second prime reported to TK5:
http://primes.utm.edu/primes/page.php?id=125396 | |
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Congrats as well!
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Greetings, Jens
147433824^131072+1 | |
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Here's the lucky workunit:
http://www.primegrid.com/workunit.php?wuid=571580393
k=81556 now eliminated from the Sierpinski conjecture. | |
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Cleanup status:
June 18: World Cup: 15264 tasks outstanding; 14430 affecting individual (297) scoring positions; 8584 affecting team (78) scoring positions.
June 19: World Cup: 12307 tasks outstanding; 10858 affecting individual (295) scoring positions; 6493 affecting team (72) scoring positions.
June 20: World Cup: 8653 tasks outstanding; 7549 affecting individual (291) scoring positions; 2892 affecting team (60) scoring positions.
June 21: World Cup: 6557 tasks outstanding; 5623 affecting individual (285) scoring positions; 2167 affecting team (50) scoring positions.
June 22: World Cup: 5384 tasks outstanding; 4505 affecting individual (275) scoring positions; 1596 affecting team (43) scoring positions.
June 23: World Cup: 4411 tasks outstanding; 3531 affecting individual (260) scoring positions; 1156 affecting team (38) scoring positions.
June 24: World Cup: 3502 tasks outstanding; 2448 affecting individual (239) scoring positions; 902 affecting team (36) scoring positions
June 25: World Cup: 2627 tasks outstanding; 1558 affecting individual (212) scoring positions; 627 affecting team (28) scoring positions.
June 26: World Cup: 2029 tasks outstanding; 1105 affecting individual (186) scoring positions; 450 affecting team (24) scoring positions.
June 27: World Cup: 1301 tasks outstanding; 645 affecting individual (156) scoring positions; 93 affecting team (14) scoring positions.
June 28: World Cup: 561 tasks outstanding; 185 affecting individual (74) scoring positions; 33 affecting team (8) scoring positions.
June 29: World Cup: 326 tasks outstanding; 96 affecting individual (49) scoring positions; 20 affecting team (5) scoring positions.
June 30: World Cup: 142 tasks outstanding; 38 affecting individual (28) scoring positions; 9 affecting team (3) scoring positions.
July 1: World Cup: 90 tasks outstanding; 26 affecting individual (19) scoring positions; 2 affecting team (1) scoring positions.
July 2: World Cup: 56 tasks outstanding; 11 affecting individual (11) scoring positions; 2 affecting team (1) scoring positions.
July 3: World Cup: 39 tasks outstanding; 8 affecting individual (8) scoring positions; 2 affecting team (1) scoring positions.
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Michael GoetzVolunteer moderator
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Of the 10 tasks remaining to finish the cleanup, 6 of them look like they probably won't get completed by the computers they're currently assigned to. I'm running those six myself. The other 4 look like they'll probably be returned. I expect those to be done by Friday, so we'll likely conclude the cleanup this week.
I usually do this at the end of all the challenge cleanups. Nobody really wants to wait a month for that one last task, right?
Jim, by the way, frequently clicks on the "oldest task" links, looking for really old tasks that aren't going to be completed and will eventually get sent out to yet another computer. You can thank him for SoB tasks not taking even longer to validate. He often manually runs the worst outstanding tasks himself.
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In fact, I did see some months old tasks being resent to a new CPU, even if the previous one did not timeout yet and was wondering how that was done. Now I know.
Thanks for your dedication.
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Joined: 21 Jan 10
Posts: 14010
ID: 53948
Credit: 428,738,406
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Cleanup status:
June 18: World Cup: 15264 tasks outstanding; 14430 affecting individual (297) scoring positions; 8584 affecting team (78) scoring positions.
June 19: World Cup: 12307 tasks outstanding; 10858 affecting individual (295) scoring positions; 6493 affecting team (72) scoring positions.
June 20: World Cup: 8653 tasks outstanding; 7549 affecting individual (291) scoring positions; 2892 affecting team (60) scoring positions.
June 21: World Cup: 6557 tasks outstanding; 5623 affecting individual (285) scoring positions; 2167 affecting team (50) scoring positions.
June 22: World Cup: 5384 tasks outstanding; 4505 affecting individual (275) scoring positions; 1596 affecting team (43) scoring positions.
June 23: World Cup: 4411 tasks outstanding; 3531 affecting individual (260) scoring positions; 1156 affecting team (38) scoring positions.
June 24: World Cup: 3502 tasks outstanding; 2448 affecting individual (239) scoring positions; 902 affecting team (36) scoring positions
June 25: World Cup: 2627 tasks outstanding; 1558 affecting individual (212) scoring positions; 627 affecting team (28) scoring positions.
June 26: World Cup: 2029 tasks outstanding; 1105 affecting individual (186) scoring positions; 450 affecting team (24) scoring positions.
June 27: World Cup: 1301 tasks outstanding; 645 affecting individual (156) scoring positions; 93 affecting team (14) scoring positions.
June 28: World Cup: 561 tasks outstanding; 185 affecting individual (74) scoring positions; 33 affecting team (8) scoring positions.
June 29: World Cup: 326 tasks outstanding; 96 affecting individual (49) scoring positions; 20 affecting team (5) scoring positions.
June 30: World Cup: 142 tasks outstanding; 38 affecting individual (28) scoring positions; 9 affecting team (3) scoring positions.
July 1: World Cup: 90 tasks outstanding; 26 affecting individual (19) scoring positions; 2 affecting team (1) scoring positions.
July 2: World Cup: 56 tasks outstanding; 11 affecting individual (11) scoring positions; 2 affecting team (1) scoring positions.
July 3: World Cup: 39 tasks outstanding; 8 affecting individual (8) scoring positions; 2 affecting team (1) scoring positions.
July 4: World Cup: 21 tasks outstanding; 1 affecting individual (1) scoring positions; 0 affecting team (0) scoring positions.
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My lucky number is 75898524288+1 | |
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RogerVolunteer developer
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Joined: 27 Nov 11
Posts: 1138
ID: 120786
Credit: 268,668,824
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The results are final!
Special congratulations to stsuji for finding the prime 327926*5^2542838-1 and so elimiating one of the Riesel Base 5 k's!
Special congratulations as well to boceli for finding the prime 81556*5^2539960+1 and so elimiating one of the Sierpinski Base 5 k's!
Top 3 individuals:
1: xii5ku
2: Scott Brown
3: DeleteNull
Top 3 teams:
1: Czech National Team
2: SETI.Germany
3: TeAm AnandTech
Congratulations to the winners, and well done to everyone who participated.
See you at the Solar Eclipse Challenge!
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RogerVolunteer developer
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Joined: 27 Nov 11
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I've compiled the 2018 Current Overall Challenge Standings, covers the first four challenges:
https://docs.google.com/spreadsheets/d/1URcgFLrCy-23kxXyTlgr8Vw61DjRkX1t/
Users are referenced by User ID, in case they change teams between Challenges.
Position is ranked first by Points and then by Scores.
There are no identical Scores in any Challenge so far that would lead to award of equal Points. | |
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LumiukkoVolunteer tester
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Joined: 7 Jul 08
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Something wrong with users "Team" column.
Mine is showing "The Knights Who Say Ni!", should be "PrimeSearchTeam".
And I noticed errors in "Team" for other users too.
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Lumiukko | |
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axnVolunteer developer
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Something wrong with users "Team" column.
Mine is showing "The Knights Who Say Ni!", should be "PrimeSearchTeam".
And I noticed errors in "Team" for other users too.
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Lumiukko
Yep. The pattern of error is a simple off-by-one error, based on the very first challenge. The n-th user in challenge 1 is associated with (n+1)-th user's team. | |
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RogerVolunteer developer
Volunteer tester
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Joined: 27 Nov 11
Posts: 1138
ID: 120786
Credit: 268,668,824
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Something wrong with users "Team" column.
Mine is showing "The Knights Who Say Ni!", should be "PrimeSearchTeam".
And I noticed errors in "Team" for other users too.
--
Lumiukko
Yep. The pattern of error is a simple off-by-one error, based on the very first challenge. The n-th user in challenge 1 is associated with (n+1)-th user's team.
I checked my entry before posting the link, but the User below me in the first Challenge is from same team, so didn't pick this up.
Anyway, easy fix to the formula copying the teams from the first Challenge sheet into the Total sheet and all good.
New version uploaded on the same link above. | |
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