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 Michael Goetz Volunteer moderator
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Tour de Primes 2021
Welcome to the 13th annual Tour de Primes. 2 is the first prime number...and the only even one. This makes it unique among prime numbers. Therefore, February is declared Prime month...being the 2nd month of the year. :) And there's no better way to pay homage to a prime number than to go out and find one. :) More precisely, a Top 5000 prime.
For the month of February, an informal competition is offered. There are no challenge points to be gained... just a simple rare jersey at the end of the month to add to your badge list. No pressure or stress other than what you put on yourself. :)
For 2021, we're bringing back the badges introduced in 2018:
 Red Jersey -- discoverer of largest prime
 Yellow Jersey -- prime count leader (tiebreaker will be prime score)
 Green Jersey -- points (prime score) leader
 Polk-a-dot Jersey -- on the 19th of February we'll have a "Mountain Stage" and award the Polk-a-dot Jersey to the one who finds the most primes on that day (tiebreaker will be prime score for that day).
 Prime badge -- awarded to everyone who finds an eligible prime during the month of February. This is a counter badge, so if you find more than one prime it will show how many you've found, up to 99.
 Mega prime badge -- awarded to everyone who finds a mega prime during February. This is a counter badge.
 Mountain Stage prime badge -- awarded to everyone who finds an eligible prime during the Mountain Stage. This is a counter badge.
 Mountain Stage mega prime badge -- awarded to everyone who finds a mega prime during the Mountain Stage. This is a counter badge.
Results will be available at http://www.primegrid.com/challenge/tdp_2021.php.
As we've done for the last couple of years, there will also be a "just for giggles" Double Checker scoreboard at http://www.primegrid.com/challenge/tdp_2021_dc.php.
As with the last few years, for all primes (BOINC and PRPNet) we're using the new reporting system whereby the prime's date of discovery determines whether it's eligible for the Tour de Primes. Prior to 2014, the date of verification for BOINC primes was used while the discovery date was used for PRPNet primes. The current system is more intuitive and fairer.
Note that SGS-LLR and GFN-15 are too small to be reported to the Top 5000 primes list and are therefore not eligible for the 2021 Tour de Primes.
Currently, the fastest opportunities to find Top 5000 primes is with the PPSE (LLR), and GFN-16 (65536) projects. Of course, should someone find a prime in the mega-prime searches, this would certainly give them a good shot at the green or red jerseys. Not a guarantee, however, as in 2020 there were 44 mega primes found in the Tour de Primes. Overall, in 2020 we averaged over three mega primes per week for the entire year, so you might need more than "merely" a mega prime to take home green.
All ports in PRPNet are available for the competition.
To participate in BOINC PPSE (LLR), GFN-16, or any other eligible LLR or Genefer project, all you have to do is select it in your PrimeGrid preferences. AP27 sequences are not reportable at T5K, so are not eligible for Tour de Primes. WW primes are also not reportable to T5K.
Sieve projects don't find primes, so PPS-Sieve can't find anything in TdP.
Good Luck, have fun, and enjoy! :D
Previous Winners
 - tng*
 - RFGuy_KCCO
 - Scott Brown
 - mattozan
 - Honza
 - Scott Brown
 - 288larsson
 - [AF>EDLS]GuL
 - Robish
 - [AF>Amis des Lapins] dthonon
 - [AF>Amis des Lapins] dthonon
 - tng*
 - wdethomas
 - tng*
 - wdethomas
 - tng*
 - boss
 - Scott Brown
 - boss
 - Orange_1050
 - Scott Brown
 - Randall J. Scalise
 - vmc
 - [DPC]x-RaY99_the_one_man_team
 - [DPC]x-RaY99_the_one_man_team
 - Lonnie Christensen
 - [DPC]x-RaY99_the_one_man_team
 - [DPC]x-RaY99_the_one_man_team
 - PBT_marian_boss
 - Scott Brown
 - Usucapio Libertatis
 - Scott Brown
 - shanky123
 - [BOINCstats] LostBoy
 - Snf*
 - lennart
 - lennart
 - [SG]marodeur6
 - lennart
 - s-yama
 - lennart
Full rankings can be seen here: 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020
Totals by Year
2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
Total Primes found 212 309 766 646 238 254 254 346 246 256 277 377
Total Score 457.30 2663.27 21803.72 20727.04 15614.83 20982.77 30268.46 43656.50 40201.94 55393.50 63588.96 130171.15
Tips and Strategies:
Tip #1: He (or she) who finds the prime FIRST is the discover of the prime. It's a competition between you and your wingman. While having a fast computer helps, your computer is only useful when it's running a task. If you have a cache of tasks sitting on your computer waiting to run, chances are your wingman will return the task before you've even started it. Setting both BOINC cache settings to "0 days" is strongly recommended. People with slow computers find primes all the time because their wingman downloaded the task yesterday but won't start running it until tomorrow. Set your cache to 0 days!
If you're going to ignore tip #1, don't even bother reading the rest. Seriously.
Tips for LLR:
- Your mileage may vary. What works for me may not work for you. Before TdP 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. (But see below for exceptions.)
- 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:
- Use multi-threading on larger tasks. What constitutes "larger" varies according to how fast your CPU is and your personal tastes.
- It's no longer necessary to use app_config.xml to set up multi-threading. On the PrimeGrid preferences page, set "Multi-threading: Max # of threads for each task" to "No limit" to use the maximum number of threads for each task, or select a specific thread count if you prefer.
Tips for GFN:
- Only run GFN on a GPU. Use your CPU for LLR tasks where it will be much more efficient.
- Unless you have a really slow GPU and a really fast CPU, leave a CPU core free to service the GPU. You'll want the more powerful GPU running at full speed, even if it slows down the CPU somewhat. A hyperthread should be sufficient if your CPU supports hyperthreading. For example, on a 4 core CPU (without hyperthreading), you could set BOINC to "use 75% of the CPUs" to reserve one core for the GPU.
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My lucky number is 75898524288+1
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Ken_g6Volunteer developer
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Tip #1: He (or she) who finds the prime FIRST is the discover of the prime. It's a competition between you and your wingman. While having a fast computer helps, your computer is only useful when it's running a task. If you have a cache of tasks sitting on your computer waiting to run, chances are your wingman will return the task before you've even started it. Setting both BOINC cache settings to "0 days" is strongly recommended. People with slow computers find primes all the time because their wingman downloaded the task yesterday but won't start running it until tomorrow. Set your cache to 0 days!
If you're going to ignore tip #1, don't even bother reading the rest. Seriously.
I think I'm going to ignore tip #1 and run projects that don't have wingmen, like PPS or PPS Mega. As a result, I didn't read the rest, so I don't know if anything else is out-of-date. ;)
But, seriously, this leads to several interesting questions. Like, can I finish more PPS tasks in a given time than I could get firsts in PPSE? Does that actually result in a better chance of finding a prime? (I.e. how much rarer are PPS primes than PPSE?) If I have a fast CPU but a slow GPU, do I get so few firsts in GFN (which does still have wingmen) that the slowdown it causes for CPU tasks means I'd be better off not using the GPU at all?
Fast double-checks mean it's a whole new world! |
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I do enjoy this challenge but it will be more difficult this year being up against the NVIDIA 3000 series cards for those that have them.
I guess there goes the power bill for the month of Feb! Not great for summer here in Aus :)
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As we've done for the last couple of years, there will also be a "just for giggles" Double Checker scoreboard at http://www.primegrid.com/challenge/tdp_2021_dc.php.
This is also affected by the fast double checks introduced by LLR2. I suppose LLR2 primes have no official DC users, and this may make the tdp_2021_dc stats hard to compare to the "real" stats. /JeppeSN |
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Michael GoetzVolunteer moderator
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As we've done for the last couple of years, there will also be a "just for giggles" Double Checker scoreboard at http://www.primegrid.com/challenge/tdp_2021_dc.php.
This is also affected by the fast double checks introduced by LLR2. I suppose LLR2 primes have no official DC users, and this may make the tdp_2021_dc stats hard to compare to the "real" stats. /JeppeSN
This is correct. All LLR projects eligible for TdP, except for PPSE, do not have double checkers, so the 2nd place page will only have PPSE and GFN primes.
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Dave
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So...
...I've given it a lot of thought...
...& I've decided...
...I'm going to do AP + sieving.
Actually no I might do some low-GFN CPU - want to carry on w/ WW on GPU. ESP is next in line for me to 6M so that would strike gold if anything exciting should happen during Feb. |
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Does anyone have any advise on how to stop GFN-16 tasks from downloading whilst 1 task is crunching?
While 1 task was crunching, I actually had 2 tasks download and wait. This will hurt my 1st rate.
I have my resource share set to 0 which is the strange part.
TIA.
Edit - If I set Max # of simultaneous PrimeGrid tasks to 1... this stops others from downloading.
So with a 3950X, when i run PPSE, perhaps I just set that number to 17 (16 CPU tasks & 1 GPU task) That might fix it :)
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Chooka, the usual way is to use BOINC version 7.14 or older, set "Resource share" to zero/empty on PrimeGrid prefs, and of course have "Maintain enough work for an additional ... days" set to zero/empty on Computing prefs.
Usually, BOINC will take the next task 3 minutes in advance. But up to version 7.14, if the "Resource share" for the PrimeGrid project was empty, it would refrain from that (even if there were no other projects with a higher "Resource share"), and only when you run completely out of work would it acquire tasks from projects with 0 share.
/JeppeSN |
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Does anyone have any advise on how to stop GFN-16 tasks from downloading whilst 1 task is crunching?
While 1 task was crunching, I actually had 2 tasks download and wait. This will hurt my 1st rate.
I have my resource share set to 0 which is the strange part.
TIA.
Edit - If I set Max # of simultaneous PrimeGrid tasks to 1... this stops others from downloading.
So with a 3950X, when i run PPSE, perhaps I just set that number to 17 (16 CPU tasks & 1 GPU task) That might fix it :)
maybe it will get one fgfn16 task in advance and abandon a core on ppse, thats what happened to me with my 3800xt, I noticed that I was doing less and less ppse and then I found that 5 gfn16 were queued.... leaving 3 cores crunching *facepalm*
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My lucky number is 6219*2^3374198+1
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But, seriously, this leads to several interesting questions. Like, can I finish more PPS tasks in a given time than I could get firsts in PPSE? Does that actually result in a better chance of finding a prime? [...] Fast double-checks mean it's a whole new world!
I think this is very interesting. Does anyone have an idea about this?
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"MiauiKatze" is german and means as much as "mewing cat"!
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I do enjoy this challenge but it will be more difficult this year being up against the NVIDIA 3000 series cards for those that have them.
Yep there is some serious horse power out there but each and every year I've seen folks with very limited resources score a prime. If all else fails then the "server is broken" usually works. Best of luck!
Cheers Rick |
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But, seriously, this leads to several interesting questions. Like, can I finish more PPS tasks in a given time than I could get firsts in PPSE? Does that actually result in a better chance of finding a prime? [...] Fast double-checks mean it's a whole new world!
I think this is very interesting. Does anyone have an idea about this?
In the extreme where your computer is very slow, the answer should be yes because you can get very few firsts in PPSE with an extremely slow computer. In the opposite extreme where your computer is fast, the answer should be no because PPSE is always faster than PPS, and you should get mostly firsts because the computer is fast.
That's a theoretical answer. I do not know how slow your computer must be to get a yes answer.
/JeppeSN |
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I lucked out and managed to find 3 last year. I'm hoping to get at least one again this year. My hardware hasn't changed, but the leading edges have moved upwards a bit, so I expect it will be a little bit harder for me this year.
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Hi JeppeSN,
Thanks for the response. I didn't know that people were using 7.14 or older. I usually just update for the security reasons I guess although I am running some older versions for a different reason. (7.15)
@Danny - That does ring a bell actually. Thanks for the reminder.
I'm not particularly interested in reverting back to an older version of BOINC so.... I guess my 1st's will just have to suffer.
Thx guys.
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Most if not all of my hardware is low to maybe mid-range. Below what percentage of firsts does it make sense to just switch from PPSE to PPS? If you were in my shoes of course... |
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But, seriously, this leads to several interesting questions. Like, can I finish more PPS tasks in a given time than I could get firsts in PPSE? Does that actually result in a better chance of finding a prime? [...] Fast double-checks mean it's a whole new world!
I think this is very interesting. Does anyone have an idea about this?
In the extreme where your computer is very slow, the answer should be yes because you can get very few firsts in PPSE with an extremely slow computer. In the opposite extreme where your computer is fast, the answer should be no because PPSE is always faster than PPS, and you should get mostly firsts because the computer is fast.
That's a theoretical answer. I do not know how slow your computer must be to get a yes answer.
/JeppeSN
My CPU is disproportionally faster than my GPU, should I just abandon GFN16's and just run PPSE on my CPU? Or should I run 8cores+1gpu? Or leave a core for the GPU?
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My lucky number is 6219*2^3374198+1
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Also I have another question, primes reported within the timeframe will all count, right? Not just primes whose tasks were sent after 2.1 00:00UTC?
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Michael GoetzVolunteer moderator
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Also I have another question, primes reported within the timeframe will all count, right? Not just primes whose tasks were sent after 2.1 00:00UTC?
Neither.
It's when you discover the prime that counts, i.e., when your computer returns the task to the server. When it's reported to T5K does not matter. It does not matter when the task was sent to you.
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Most if not all of my hardware is low to maybe mid-range. Below what percentage of firsts does it make sense to just switch from PPSE to PPS? If you were in my shoes of course...
I'm not sure what the math is exactly on it, but there are two different aspects that you need to factor in.
- The difference in task duration
- The difference in likelihood that each candidate will be a prime.
The first consideration is taken into account naturally if you consider number of firsts per unit of time instead of the raw first percentage.
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maybe it will get one fgfn16 task in advance and abandon a core on ppse, thats what happened to me with my 3800xt, I noticed that I was doing less and less ppse and then I found that 5 gfn16 were queued.... leaving 3 cores crunching *facepalm*
Correct. This is what's happening. it's dropping a PPSE task to run the GFN-16 but still downloading another GFN-16 which is just sitting there.
I guess I thought there might be a config file that can stop this?
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Yeah it might a tough run on the same computer Chooka03.
Only running 1 gpu this year and that pc isn't doing any CPU wlrkunits.
Testing some setups on three other Pc's to see what will work for me.
Goodluck all and see you at the starting line.[/i] |
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I posted this in another thread, but I did some quick test runs with my 8700K for which project would be best for searching primes larger than mega primes, and this might interest some folks here.
So if you're looking for a large prime larger than a mega with a CPU, here are your choices (quick test gives a ballpark estimate of "efficiency", with lowest and highest k):
DIV:
Starting Proth prime test of 5*2^8500001+1
Using all-complex FMA3 FFT length 480K, Pass1=384, Pass2=1280, 6 threads, a = 3
5*2^8500001+1, bit: 60000 / 8500003 [0.70%]. Time per bit: 0.306 ms.
(Total time 43 min)
Starting Proth prime test of 49*2^8500000+1
Using all-complex FMA3 FFT length 512K, Pass1=512, Pass2=1K, 6 threads, a = 3
49*2^8500000+1, bit: 60000 / 8500005 [0.70%]. Time per bit: 0.324 ms.
(Total time 46 min)
321:
Starting Proth prime test of 3*2^16900001+1
Using all-complex FMA3 FFT length 960K, Pass1=384, Pass2=2560, 6 threads, a = 5
3*2^16900001+1, bit: 40000 / 16900002 [0.23%]. Time per bit: 0.579 ms.
(Total time 2 h 43 min)
SR5:
Starting N-1 prime test of 3622*5^3300000+1
Using all-complex FMA3 FFT length 640K, Pass1=512, Pass2=1280, 6 threads, a = 3
3622*5^3300000+1, bit: 130000 / 7662373 [1.69%]. Time per bit: 0.425 ms.
(Total time 54 min)
Starting N-1 prime test of 152588*5^3300001+1
Using all-complex FMA3 FFT length 800K, Pass1=640, Pass2=1280, 6 threads, a = 3
152588*5^3300001+1, bit: 40000 / 7662380 [0.52%]. Time per bit: 0.541 ms.
(Total time 1 h 9 min)
TRP:
Starting Lucas Lehmer Riesel prime test of 2293*2^11500001-1
Using FMA3 FFT length 864K, Pass1=384, Pass2=2304, 6 threads
V1 = 4 ; Computing U0...done.
2293*2^11500001-1, iteration : 30000 / 11500001 [0.26%]. Time per iteration : 0.711 ms.
(Total time 1 h 53 min)
Starting Lucas Lehmer Riesel prime test of 494743*2^11500001-1
Using zero-padded FMA3 FFT length 1200K, Pass1=320, Pass2=3840, 6 threads
V1 = 4 ; Computing U0...done.
494743*2^11500001-1, iteration : 80000 / 11500001 [0.69%]. Time per iteration : 0.779 ms.
(Total time 2 h 29 min)
For comparison, here is results with PPS-Mega and PPS-Mega with DIV-size n:
Starting Proth prime test of 1201*2^3350000+1
Using all-complex FMA3 FFT length 256K, Pass1=128, Pass2=2K, 6 threads, a = 3
1201*2^3350000+1, bit: 70000 / 3350010 [2.08%]. Time per bit: 0.172 ms.
(Total time ~9 min)
Starting Proth prime test of 9999*2^3350001+1
Using all-complex FMA3 FFT length 256K, Pass1=128, Pass2=2K, 6 threads, a = 13
9999*2^3350001+1, bit: 70000 / 3350014 [2.08%]. Time per bit: 0.170 ms.
(Total time ~9 min)
Starting Proth prime test of 1201*2^8500000+1
Using all-complex FMA3 FFT length 640K, Pass1=512, Pass2=1280, 6 threads, a = 3
1201*2^8500000+1, bit: 50000 / 8500010 [0.58%]. Time per bit: 0.408 ms.
(Total time 58 min)
Starting Proth prime test of 9999*2^8500001+1
Using all-complex FMA3 FFT length 768K, Pass1=384, Pass2=2K, 6 threads, a = 7
9999*2^8500001+1, bit: 110000 / 8500014 [1.29%]. Time per bit: 0.460 ms.
(Total time 1 h 5 min)
So, DIV is a good choice if you're aiming for anything over Mega (SR5 can be also good, it has lower digits = higher chance of prime per task). |
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Well my tests have been conducted on my crunchers, found 1 PC that is fast, but hot, so need to clean the paste and add extra fans.
Others are running in safe temp areas.
Thats some interesting info in the post above me, thanks Myrskylyhty
Cheers all, see you at the starting line.
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Ok, so for setting up my dell server (24-core, HT enabled) for LLRI should either turn off HT in the BIOS or tell PG to only use 24 cores? I ask since in preferences it is suggested to enable HT which it already was, and set my core count to 48. As such the system is only running about 45% loaded. While the answer would seem self-evident, I've been working on this project for all of a couple days and am not sure how to optimize my CPU crunching. |
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RafaelVolunteer tester
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Ok, so for setting up my dell server (24-core, HT enabled) for LLRI should either turn off HT in the BIOS or tell PG to only use 24 cores? I ask since in preferences it is suggested to enable HT which it already was, and set my core count to 48. As such the system is only running about 45% loaded. While the answer would seem self-evident, I've been working on this project for all of a couple days and am not sure how to optimize my CPU crunching.
If the system is solely dedicated to running PG and doing nothing else (say, being used as a daily driver), then turning HT in BIOS is generally better for LLR performance. And if so, set usage to 100%. Alternatively, if you cannot disable HT for whatever reason, then set usage to 50% to mitigate the effects of leaving it on.
Outside of that, the usual applies: try to keep all your work inside L3 cache to boost performance, and assuming you're talking about that E5-2697 v2, remember that it doesn't have AVX2 and thus will be way lesse efficient than more modern machines. |
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If the system is solely dedicated to running PG and doing nothing else (say, being used as a daily driver), then turning HT in BIOS is generally better for LLR performance. And if so, set usage to 100%. Alternatively, if you cannot disable HT for whatever reason, then set usage to 50% to mitigate the effects of leaving it on.
Outside of that, the usual applies: try to keep all your work inside L3 cache to boost performance, and assuming you're talking about that E5-2697 v2, remember that it doesn't have AVX2 and thus will be way lesse efficient than more modern machines.
Hey, thanks a bunch. Also, thank you for saying kindly that my old Dell is, well old haha. I'll make said changes once my cache dries up. |
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Is there going to be no mountain stage this year? Cuz this page still shows feb.29th as the mountain stage ;)
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Michael GoetzVolunteer moderator
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Is there going to be no mountain stage this year? Cuz this page still shows feb.29th as the mountain stage ;)
Yes, and it will be on the 19th. Thanks for pointing that out.
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Is there going to be no mountain stage this year? Cuz this page still shows feb.29th as the mountain stage ;)
Yes, and it will be on the 19th. Thanks for pointing that out.
Just curious, why is mountain stage on the 19th?
(not to change anything, but) Why not the 11th?
Which is the 5th prime,
And 5 is the 3rd prime,
And 3 is the 2nd prime,
and 2 is the 1st prime!
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VatoVolunteer tester
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i can't remember if there was a reason originally, though it could just be tradition by now, it's approximately the right proportion through the TdP to match when the "Queen stage" is in the Tour de France - which is usually the hardest day and often plays a big part in deciding who wins
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(not to change anything, but) Why not the 11th?
Which is the 5th prime,
And 5 is the 3rd prime,
And 3 is the 2nd prime,
and 2 is the 1st prime!
A007097. /JeppeSN |
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Does anyone have any advise on how to stop GFN-16 tasks from downloading whilst 1 task is crunching?
While 1 task was crunching, I actually had 2 tasks download and wait. This will hurt my 1st rate.
I have my resource share set to 0 which is the strange part.
TIA.
Edit - If I set Max # of simultaneous PrimeGrid tasks to 1... this stops others from downloading.
So with a 3950X, when i run PPSE, perhaps I just set that number to 17 (16 CPU tasks & 1 GPU task) That might fix it :)
I always run 2 BOINC clients on PCs that have a GPU. 1 client just runs CPU tasks, the other only GPU tasks. It allows for separate queues and better control. For projects that use the exact same app, like E@H, for CPU & GPU, the ETA ends up averaging and worthless. It makes bunkering and competitions easier to manage as well. |
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I always run 2 BOINC clients on PCs that have a GPU. 1 client just runs CPU tasks, the other only GPU tasks. It allows for separate queues and better control. For projects that use the exact same app, like E@H, for CPU & GPU, the ETA ends up averaging and worthless. It makes bunkering and competitions easier to manage as well.
This is an interesting idea! I think I must look in to this.
I'll have to do some googling to find out how, though...
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5912891284485*2^1290000-1
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I always run 2 BOINC clients on PCs that have a GPU. 1 client just runs CPU tasks, the other only GPU tasks. It allows for separate queues and better control. For projects that use the exact same app, like E@H, for CPU & GPU, the ETA ends up averaging and worthless. It makes bunkering and competitions easier to manage as well.
This is an interesting idea! I think I must look in to this.
I'll have to do some googling to find out how, though...
I made a guide awhile back on Overclock.net BOINC->Guide sub forums. Windows and Linux plus WUProb/BoincTask setup. |
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I always run 2 BOINC clients on PCs that have a GPU. 1 client just runs CPU tasks, the other only GPU tasks. It allows for separate queues and better control. For projects that use the exact same app, like E@H, for CPU & GPU, the ETA ends up averaging and worthless. It makes bunkering and competitions easier to manage as well.
This is an interesting idea! I think I must look in to this.
I'll have to do some googling to find out how, though...
I made a guide awhile back on Overclock.net BOINC->Guide sub forums. Windows and Linux plus WUProb/BoincTask setup.
I just came here to say that I googled running more than one instance, and I found a guide by a certain mmonnin...
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Also I have another question, primes reported within the timeframe will all count, right? Not just primes whose tasks were sent after 2.1 00:00UTC?
Neither.
It's when you discover the prime that counts, i.e., when your computer returns the task to the server. When it's reported to T5K does not matter. It does not matter when the task was sent to you.
To be clear, because it was not obvious to me even after reading this, it means that you CAN bunker LLR2 tasks before the start of the challenge.
This is different from all the other challenges. So everyone who didn't connect the dots like me is already behind.
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Also I have another question, primes reported within the timeframe will all count, right? Not just primes whose tasks were sent after 2.1 00:00UTC?
Neither.
It's when you discover the prime that counts, i.e., when your computer returns the task to the server. When it's reported to T5K does not matter. It does not matter when the task was sent to you.
To be clear, because it was not obvious to me even after reading this, it means that you CAN bunker LLR2 tasks before the start of the challenge.
With TdP and running CPU and GPU tasks together the control to split types of tasks, needed to give bunkers to give an advantage.
This is different from all the other challenges. So everyone who didn't connect the dots like me is already behind.
Bunkering will work for LLR2 reporting, but PPSE and GFN tasks will suffer as they are still DC tasks? The prime find might be lost to the wingman.
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Bunkering will work for LLR2 reporting, but PPSE and GFN tasks will suffer as they are still DC tasks? The prime find might be lost to the wingman.
Accurately. Bunkering for LLR2 may make sense to the extent that you can find primes already in January, and delay the return of them until February, and then these primes will count towards the Tour de Primes statistics. Do not attempt that for non-LLR2 tasks (unless you want to win the anti-competition Double Checkers' Tour de Primes). /JeppeSN |
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Ok n00b question, I searched around and while I've seen a few references to it, I've not seen what is bunkering. I take it since I don't even know I'm already behind according to previous posts but hey, better to be behind than not in the race at all =) |
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Don't stress. I'm not bothering with bunkering either.
Bunkering is when people download work units which are crunched but then they withhold uploading the results until a challenge begins. This can be done by blocking the ip address for example until the comp starts.
Once the comp has begun, the user reestablishes the connection to upload the completed work units and it gives them a head start against those that haven't bunkered.
These challenges aren't like a sport where everyone lines up equally at the start line waiting for the gun to go off.
Bunkering doesn't always apply though. For example, some challenges only accept work which was downloaded AFTER the challenge starts and counts towards a users total score.
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Слава Україні! |
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Thanks a bunch. Don't think I'll worry about it either. Sure I wanna find primes and compete. I guess I'm just not as competitive as some. All good tough, each to their own :) |
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Well I suppose its a bit late for bunkering
Not really into anyways especially for the TDP.
Well will just plod along and see what comes out the otherside of the event.
Cheers and Good Luck with the Prime Finding.
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+ 1
and very good Luck to all
Greetz SEARCHER
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Member of Charity Team
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Grüße an die Pfalz and very good Luck to all
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I managed to find a GFN16 just before February started...hopefully the luck continues and I get another prime in the next 28 days to qualify for the badge again.
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Hello!
This time around may be I'll catch a badge? ,
13 is my lucky number, so why not! 🤞🏻☺
Good luck everybody!
With regards,
Hans Sveen
Oslo
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MyStats
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I managed to find a GFN16 just before February started...hopefully the luck continues and I get another prime in the next 28 days to qualify for the badge again.
GFN16 qualifies?
Edit: Oh yeah, I guess it does. |
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I managed to find a GFN16 just before February started...hopefully the luck continues and I get another prime in the next 28 days to qualify for the badge again.
GFN16 qualifies?
Edit: Oh yeah, I guess it does.
The luck continued. Found another just after the Tour began.
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Congrats to AlbertCZ & Walleye24, the first 2 prime finders for TDP 2021
Albeit Walleye24 is the only one on the Leaderboard???
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Congrats to Michael Millerick as our 2nd prime finder for the TDP 2021
Cheerio
PS. Apologies, I cannot read correctly. sorry AlbertCZ, yours was a GFN15, so not good for TDP 2021
Outta here. |
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Boo to double checking... Booooo!! Lol
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Слава Україні! |
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BurVolunteer tester
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I'm not particularly interested in reverting back to an older version of BOINC so.... I guess my 1st's will just have to suffer.
I don't know if someone else already posted it, but you don't need old BONC 7.14 to prevent pre-fetching.
Just set Max # of simultaneous PrimeGrid tasks in Primegrid preferences to the appropriate value. I do this on three different computers with 7.16.11 and didn't have a problem since.
Keep in mind though to include your GPU task if neccessary.
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1281979 * 2^485014 + 1 is prime ... no further hits up to: n = 5,700,000 |
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I'm not particularly interested in reverting back to an older version of BOINC so.... I guess my 1st's will just have to suffer.
I don't know if someone else already posted it, but you don't need old BONC 7.14 to prevent pre-fetching.
Just set Max # of simultaneous PrimeGrid tasks in Primegrid preferences to the appropriate value. I do this on three different computers with 7.16.11 and didn't have a problem since.
Keep in mind though to include your GPU task if neccessary.
This method may not be fool-proof and will probably be realised by GPU tasks not being downloaded. |
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With the mentioned method of setting the maximum number of tasks, I found it to work only part of the time when GPU and CPU tasks are being run by the same client... sometimes I end up with multiple GPU tasks waiting to run, and not enough CPU tasks running, or the other way around.
What works better is to run 2 BOINC clients on each PC; one for GPU and the other for CPU. The GPU client can be set to allow 1 task at a time, and the CPU client can run free if you are doing anything other than PPSE. |
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I'm not particularly interested in reverting back to an older version of BOINC so.... I guess my 1st's will just have to suffer.
I don't know if someone else already posted it, but you don't need old BONC 7.14 to prevent pre-fetching.
Just set Max # of simultaneous PrimeGrid tasks in Primegrid preferences to the appropriate value. I do this on three different computers with 7.16.11 and didn't have a problem since.
Keep in mind though to include your GPU task if neccessary.
This method may not be fool-proof and will probably be realised by GPU tasks not being downloaded.
I tried that and it downloads GPU tasks first so I had 4 waiting gpu tasks and 4 empty cores. |
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Observation: the 2021 TdP badge does not follow the same sort order as previous years.
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Observation: the 2021 TdP badge does not follow the same sort order as previous years.
Now it seems most recent first ?
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"Accidit in puncto, quod non contingit in anno."
Something that does not occur in a year may, perchance, happen in a moment. |
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I'm not particularly interested in reverting back to an older version of BOINC so.... I guess my 1st's will just have to suffer.
I don't know if someone else already posted it, but you don't need old BONC 7.14 to prevent pre-fetching.
Just set Max # of simultaneous PrimeGrid tasks in Primegrid preferences to the appropriate value. I do this on three different computers with 7.16.11 and didn't have a problem since.
Keep in mind though to include your GPU task if neccessary.
Thanks Bur. I did test that and as mentioned, it doesn't work combined with GPU tasks.
I actually just changed over to the older version for this challenge. Seems to work a bit better now, particularly with the GFN-16 tasks. I actually tried installing another BOINC client on a different HDD but it removed my original client (oops) hence why I just went with the older install.
Thx for the reply though.
Goodluck.
In regards to my double checker comment, I noticed it was from the 31st Jan....phew!! lol.
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Слава Україні! |
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Michael GoetzVolunteer moderator
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Michael Millerick wrote: Observation: the 2021 TdP badge does not follow the same sort order as previous years.
It's fixed now. Thanks for pointing out the error.
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My lucky number is 75898524288+1 |
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Speaking of the results page - would it be possible (well easily) to add the team beside the user and if so would you please add it? If it will cause any issues no worries.
Cheers Rick |
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What would be the point of adding the team name Rick? |
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Michael GoetzVolunteer moderator
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Speaking of the results page - would it be possible (well easily) to add the team beside the user and if so would you please add it? If it will cause any issues no worries.
Cheers Rick
It's not possible. There's no team data stored with primes.
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My lucky number is 75898524288+1 |
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Slow start or great start?
Does the PPS-27 will be counted in January or February?
No MP for now...
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Badge Score: 1*2 + 1*5 + 8*6 + 6*7 + 3*8 + 1*9 = 135 |
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Michael GoetzVolunteer moderator
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Does the PPS-27 will be counted in January or February?
February.
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My lucky number is 75898524288+1 |
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It's not possible. There's no team data stored with primes.
Thanks for checking and letting me know.
Cheers |
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Speaking of the results page - would it be possible (well easily) to add the team beside the user and if so would you please add it? If it will cause any issues no worries.
Cheers Rick
It's not possible. There's no team data stored with primes.
But it can show teams on https://www.primegrid.com/primes/primes.php?project=ALL&sortby=date? /JeppeSN |
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Does the PPS-27 will be counted in January or February?
February.
It is going to give a nice lead for Nortech when it has come through. See Caldwell 27*2^8342438 - 1 and PRPNet port 12006 User Primes.
It is technically not a "PPS". It is not a Proth prime because it is c = -1.
/JeppeSN |
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Speaking of the results page - would it be possible (well easily) to add the team beside the user and if so would you please add it? If it will cause any issues no worries.
Cheers Rick
It's not possible. There's no team data stored with primes.
Couldn't you pull the team from the username instead? |
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Speaking of the results page - would it be possible (well easily) to add the team beside the user and if so would you please add it? If it will cause any issues no worries.
Cheers Rick
It's not possible. There's no team data stored with primes.
Couldn't you pull the team from the username instead?
But the user can change teams. For example, from my account, you see that I am on the team Antarctic Crunchers, but if you look at my prime 5133*2^1563452+1, you see that its Team field is empty. That is because at the time when I found that prime, I was on no team. /JeppeSN |
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Speaking of the results page - would it be possible (well easily) to add the team beside the user and if so would you please add it? If it will cause any issues no worries.
Cheers Rick
It's not possible. There's no team data stored with primes.
Couldn't you pull the team from the username instead?
But the user can change teams. For example, from my account, you see that I am on the team Antarctic Crunchers, but if you look at my prime 5133*2^1563452+1, you see that its Team field is empty. That is because at the time when I found that prime, I was on no team. /JeppeSN
Users can also change user name.
I've seen it happen many times when processing the challenge series overall stats.
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"Accidit in puncto, quod non contingit in anno."
Something that does not occur in a year may, perchance, happen in a moment. |
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PRPNet-27.... Sexy. |
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Yeah that’s a Big un!!
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Слава Україні! |
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Michael GoetzVolunteer moderator
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Speaking of the results page - would it be possible (well easily) to add the team beside the user and if so would you please add it? If it will cause any issues no worries.
Cheers Rick
It's not possible. There's no team data stored with primes.
But it can show teams on https://www.primegrid.com/primes/primes.php?project=ALL&sortby=date? /JeppeSN
You're right. That's what I get for going by memory and not actually checking. The team information is there.
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My lucky number is 75898524288+1 |
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Michael GoetzVolunteer moderator
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Speaking of the results page - would it be possible (well easily) to add the team beside the user and if so would you please add it? If it will cause any issues no worries.
Cheers Rick
It's not possible. There's no team data stored with primes.
But it can show teams on https://www.primegrid.com/primes/primes.php?project=ALL&sortby=date? /JeppeSN
You're right. That's what I get for going by memory and not actually checking. The team information is there.
Yuck. The TdP page (which *I* wrote, by the way), doesn't use the correct database table (for reasons that made sense at the time), and the table it's using doesn't have team information.
However, I'd prefer that it use the correct table (for... reasons), so I'll probably rewrite the page anyway, and hopefully I can add teams. This will only be for the first of the three leaderboards on the page, because teams don't make sense for the other two when people change teams.
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My lucky number is 75898524288+1 |
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Michael GoetzVolunteer moderator
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Speaking of the results page - would it be possible (well easily) to add the team beside the user and if so would you please add it? If it will cause any issues no worries.
Cheers Rick
It's not possible. There's no team data stored with primes.
But it can show teams on https://www.primegrid.com/primes/primes.php?project=ALL&sortby=date? /JeppeSN
You're right. That's what I get for going by memory and not actually checking. The team information is there.
Yuck. The TdP page (which *I* wrote, by the way), doesn't use the correct database table (for reasons that made sense at the time), and the table it's using doesn't have team information.
However, I'd prefer that it use the correct table (for... reasons), so I'll probably rewrite the page anyway, and hopefully I can add teams. This will only be for the first of the three leaderboards on the page, because teams don't make sense for the other two when people change teams.
Done. Enjoy!
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My lucky number is 75898524288+1 |
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Speaking of the results page - would it be possible (well easily) to add the team beside the user and if so would you please add it? If it will cause any issues no worries.
Cheers Rick
It's not possible. There's no team data stored with primes.
But it can show teams on https://www.primegrid.com/primes/primes.php?project=ALL&sortby=date? /JeppeSN
You're right. That's what I get for going by memory and not actually checking. The team information is there.
I was just looking at the results page and just noticed your new addition - thank you ! |
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Yay... got a run on the board for 2021!
Might be the first for a Radeon card amongst the sea of team green lol.
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Слава Україні! |
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https://www.primegrid.com/workunit.php?wuid=701752714
OH MY GOD. 1 SECOND.
Congrats Buckeye anyways ;)
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My lucky number is 6219*2^3374198+1
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HonzaVolunteer moderator
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https://www.primegrid.com/workunit.php?wuid=701752714
OH MY GOD. 1 SECOND.
2021 TdP - Hard Luck Edition, immediate winner :-)
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My stats |
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https://www.primegrid.com/workunit.php?wuid=701752714
OH MY GOD. 1 SECOND.
In case of a tie, does the system keep fractions of a second? (I had to ask) |
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Michael GoetzVolunteer moderator
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https://www.primegrid.com/workunit.php?wuid=701752714
OH MY GOD. 1 SECOND.
In case of a tie, does the system keep fractions of a second? (I had to ask)
No, but we can look in the logs if we have to.
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My lucky number is 75898524288+1 |
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Can someone please ELI5 how to setup and run PRPNet-27 like user Nortech had done?
I feel like I'm missing an opportunity here... |
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https://www.primegrid.com/workunit.php?wuid=701752714
OH MY GOD. 1 SECOND.
In case of a tie, does the system keep fractions of a second? (I had to ask)
No, but we can look in the logs if we have to.
So what determines the winner?
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My lucky number is 6219*2^3374198+1
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Ken_g6Volunteer developer
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Can someone please ELI5 how to setup and run PRPNet-27 like user Nortech had done?
I feel like I'm missing an opportunity here...
Full instructions: https://www.primegrid.com/forum_thread.php?id=1215
To focus on 27, use this setting:
server=27:100:1:prpnet.primegrid.com:12006
121 would be good as a backup, I think.
server=121:0:1:prpnet.primegrid.com:12001 |
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Michael GoetzVolunteer moderator
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https://www.primegrid.com/workunit.php?wuid=701752714
OH MY GOD. 1 SECOND.
In case of a tie, does the system keep fractions of a second? (I had to ask)
No, but we can look in the logs if we have to.
So what determines the winner?
Whichever one is first, of course.
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My lucky number is 75898524288+1 |
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Can someone please ELI5 how to setup and run PRPNet-27 like user Nortech had done?
I feel like I'm missing an opportunity here...
Full instructions: https://www.primegrid.com/forum_thread.php?id=1215
To focus on 27, use this setting:
server=27:100:1:prpnet.primegrid.com:12006
121 would be good as a backup, I think.
server=121:0:1:prpnet.primegrid.com:12001
Thank you! |
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oh wait sorry I understood what you meant by logs (I thought you meant logarithms)
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My lucky number is 6219*2^3374198+1
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Dave
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Barking up the wrong tree. |
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Yay! On the board!
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Eating more cheese on Thursdays. |
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Another 27 prime 27 · 2^12184319 + 1 is found but it's externally found instead of using BOINC primegrid |
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Another 27 prime 27 · 2^12184319 + 1 is found but it's externally found instead of using BOINC primegrid
Yes, it was found by Ryan Propper in a range that is much larger than where PrimeGrid (both the 27 project on PRPNet and the PPS-DIV project on BOINC) currently searches. (Right now, I do not know who will check Propper's new prime for ((x)G)F divisibilities.) /JeppeSN |
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@DeleteNull - Congrats on the GFN-18 mate!
Finally a hit after thousands of wu's crunched.... and it was the little 1650S that did it! lol.
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Слава Україні! |
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Thank you Chooka!
During Great Conjunction Challenge i had also a GFN-18 prime, and also with a 1650S.
It seems these cards are specialists for GFN-18.
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I had a crack for a while with my Radeon VII's which do ok but looking at all the wu's you've done, I reckon I'd have to be VERY lucky. Not just to find one but then to be 1st!
Great find.
I see there were 2 GFN-18's found last year in the TdP. You might get another yet :D
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Michael GoetzVolunteer moderator
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https://www.primegrid.com/workunit.php?wuid=701752714
OH MY GOD. 1 SECOND.
In case of a tie, does the system keep fractions of a second? (I had to ask)
No, but we can look in the logs if we have to.
And, on cue, here's an example:
http://www.primegrid.com/workunit.php?wuid=705149814
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My lucky number is 75898524288+1 |
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I thought the red jersey had a winner with the 27 find. But now a Riesel! How long had it been since the last one? Will we get a larger prime until the end of TDP? I’m tempted to start crunching DYFL. What a year!
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676754^262144+1 is prime |
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I thought the red jersey had a winner with the 27 find. But now a Riesel! How long had it been since the last one? Will we get a larger prime until the end of TDP? I’m tempted to start crunching DYFL. What a year!
The last one was found by Pavel Atnashev on November 2020 and the previous one in 2017.
We've found a TRP (#153 this year, #558 overall)
On 16 November 2020 23:17:01 UTC, the 3,395,865 digit prime 146561*2^11280802-1 was found by Pavel Atnashev.
The last TRP was found 1070 days ago, that means 2 years, 11 months and 4 days
But with LLR2 and less and less TRP to find, maybe we will find them more often :)
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Badge Score: 1*2 + 1*5 + 8*6 + 6*7 + 3*8 + 1*9 = 135 |
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I thought the red jersey had a winner with the 27 find. But now a Riesel! How long had it been since the last one? Will we get a larger prime until the end of TDP? I’m tempted to start crunching DYFL. What a year!
A GFN 19 could take the lead; that might be easier than DYFL... |
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How long had it been since the last one?
Answered already, but also see https://www.primegrid.com/primes/primes.php?project=TRP&sortby=date. /JeppeSN |
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tngSend message
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I thought the red jersey had a winner with the 27 find. But now a Riesel! How long had it been since the last one? Will we get a larger prime until the end of TDP? I’m tempted to start crunching DYFL. What a year!
A GFN 19 could take the lead; that might be easier than DYFL...
But a GFN-20 would beat that. Better go with DYFL to make sure.
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Michael GoetzVolunteer moderator
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We have already exceeded the total prime score from last year's TdP. Half of that comes from just the three largest primes found this year, a TRP, a 27 from PRPnet, and a GFN-18. There's also a second GFN-18 in the pipeline.
As of right now (February 12th), our total prime score for TdP in 2021 is 144342.96. Our total for all of 2020's TdP was 130171.15, and there were 29 days in February last year.
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My lucky number is 75898524288+1 |
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We have already exceeded the total prime score from last year's TdP. Half of that comes from just the three largest primes found this year, a TRP, a 27 from PRPnet, and a GFN-18. There's also a second GFN-18 in the pipeline.
As of right now (February 12th), our total prime score for TdP in 2021 is 144342.96. Our total for all of 2020's TdP was 130171.15, and there were 29 days in February last year.
Only the TRP of those three is LLR2, right? With LLR2, the chance of finding something larger should be greatly increased.
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But a GFN-20 would beat that. Better go with DYFL to make sure.
But a DYFL prime could be beaten by ... a subsequent DYFL. Therefore no strategy exists. /JeppeSN |
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Michael GoetzVolunteer moderator
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We have already exceeded the total prime score from last year's TdP. Half of that comes from just the three largest primes found this year, a TRP, a 27 from PRPnet, and a GFN-18. There's also a second GFN-18 in the pipeline.
As of right now (February 12th), our total prime score for TdP in 2021 is 144342.96. Our total for all of 2020's TdP was 130171.15, and there were 29 days in February last year.
Only the TRP of those three is LLR2, right? With LLR2, the chance of finding something larger should be greatly increased.
PRPNet, even though it runs LLR, isn't doing double checking, so it runs at "double speed", same as LLR2.
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mikey
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PRPNet, even though it runs LLR, isn't doing double checking, so it runs at "double speed", same as LLR2.
So at some point will we double check the PRPNet primes? Or is it unnecessary? |
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We have already exceeded the total prime score from last year's TdP. Half of that comes from just the three largest primes found this year, a TRP, a 27 from PRPnet, and a GFN-18. There's also a second GFN-18 in the pipeline.
As of right now (February 12th), our total prime score for TdP in 2021 is 144342.96. Our total for all of 2020's TdP was 130171.15, and there were 29 days in February last year.
Only the TRP of those three is LLR2, right? With LLR2, the chance of finding something larger should be greatly increased.
PRPNet, even though it runs LLR, isn't doing double checking, so it runs at "double speed", same as LLR2.
Yes. Therefore, if you have a slow computer, you can run PRPNet and be sure to become "1st" (as long as you do not miss the deadline). /JeppeSN |
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PRPNet, even though it runs LLR, isn't doing double checking, so it runs at "double speed", same as LLR2.
So at some point will we double check the PRPNet primes? Or is it unnecessary?
I think we should and will, at some point.
For one quarter of the 27 project, namely n odd and c=+1, I think some of it was DC'ed by PPS-DIV. As of today, this quarter has been taken out of 27 on PRPNet (but not sure what will happen with this "quarter" when n exceeds 9M on PRPNet).
/JeppeSN |
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My Faforite
GPU Generalized Fermat Prime Search (n=16) 1384 / 258K
GPU Generalized Fermat Prime Search (n=17 low) 1988 / 37K
GPU Generalized Fermat Prime Search (n=17 mega) 978 / 49K
GPU Generalized Fermat Prime Search (n=18) 1000 / 82K
GPU Generalized Fermat Prime Search (n=19) 1000 / 18K
GPU Generalized Fermat Prime Search (n=20) 1000 / 13K
GPU Generalized Fermat Prime Search (n=21) 400 / 7562
GPU Generalized Fermat Prime Search (n=22) 202 / 1766
GP
U Do You Feel Lucky?
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Server issues?
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mikey
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PRPNet, even though it runs LLR, isn't doing double checking, so it runs at "double speed", same as LLR2.
So at some point will we double check the PRPNet primes? Or is it unnecessary?
I think we should and will, at some point.
For one quarter of the 27 project, namely n odd and c=+1, I think some of it was DC'ed by PPS-DIV. As of today, this quarter has been taken out of 27 on PRPNet (but not sure what will happen with this "quarter" when n exceeds 9M on PRPNet).
/JeppeSN
Sounds good thanks |
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Ummmmm, a bit quiet with the Primes?? 🤔 |
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Ummmmm, a bit quiet with the Primes?? 🤔
Probably many folks have moved on to larger primes after having secured their TdP badge. |
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HonzaVolunteer moderator
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Probably many folks have moved on to larger primes after having secured their TdP badge.
Yes, before moving back to smaller ones for a "Mountain Stage" on the 19th of February 😃
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UTC is always confusing for me. When does the Mountain stage start and end exactly for West Coast USA Pacific time? |
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Michael GoetzVolunteer moderator
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UTC is always confusing for me. When does the Mountain stage start and end exactly for West Coast USA Pacific time?
4 PM Friday. I think. :)
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Scott BrownVolunteer moderator
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UTC is always confusing for me. When does the Mountain stage start and end exactly for West Coast USA Pacific time?
4 PM Friday. I think. :)
That's correct (3 hours behind USA Eastern time zone, which starts at 7pm).
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Sysadm@NbgVolunteer moderator
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UTC is always confusing for me. When does the Mountain stage start and end exactly for West Coast USA Pacific time?
4 PM Friday. I think. :)
Universal Time Coordinated is 8 hours ahead of Pacific Standard Time - so you are right (and some seconds faster ;-) )
for your link-collection https://www.timeanddate.com/time/zones/
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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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[quote]UTC is always confusing for me. When does the Mountain stage start and end exactly for West Coast USA Pacific time?
4 PM Friday. I think. :)
That's correct (3 hours behind USA Eastern time zone, which starts at 7pm).
Universal Time Coordinated is 8 hours ahead of Pacific Standard Time - so you are right (and some seconds faster ;-) )
for your link-collection https://www.timeanddate.com/time/zones/
Thank you for clearing that up everyone! I'm also sure I ask this same equations every year! |
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Isn't Friday the 19th? So for West Coast USA it will start 8 hours prior @ 4pm on Thursday? |
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Dave
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Yes. The world is round. |
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That's not what I've heard. |
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You can hear it if you listen to old Bee Gees stuff:
"Now I found
that the world is round
and of course it rains
everyday."
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Greetings, Jens
147433824^131072+1 |
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UTC is always confusing for me. When does the Mountain stage start and end exactly for West Coast USA Pacific time?
4 PM Friday. I think. :)
As j.sheridan says, you mean 4 PM Thursday, respectively 4 PM Friday. /JeppeSN |
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UTC is always confusing for me. When does the Mountain stage start and end exactly for West Coast USA Pacific time?
4 PM Friday. I think. :)
As j.sheridan says, you mean 4 PM Thursday, respectively 4 PM Friday. /JeppeSN
Thanks, JeppeSN! |
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Michael GoetzVolunteer moderator
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UTC is always confusing for me. When does the Mountain stage start and end exactly for West Coast USA Pacific time?
4 PM Friday. I think. :)
As j.sheridan says, you mean 4 PM Thursday, respectively 4 PM Friday. /JeppeSN
Thanks, JeppeSN!
STARTS 4 PM THURSDAY
ENDS 4 PM FRIDAY
(You did ask for both.)
Yeah, I was off by a day. Duh.
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Michael GoetzVolunteer moderator
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What a difference a year makes.
In TdP 2020, we found 44 mega primes. All were less than two million digits. And February had an extra day last year.
Today is the 17th. Including some primes that aren't visible yet, there's at least 39 mega primes, three of which are above two million digits, and one is over three million digits.
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compositeVolunteer tester
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I suggest that we move TdP to March next year.
We will have more days in the month to crunch.
Plus there are real-world benefits. Some people don't want to do heavy crunching during the warmest months because the air conditioning is costly. March is more of a shoulder season everywhere, including the tropics (it starts to get really hot in April at 15 deg N latitude; but PG has few users at that latitude).
February this year happens to be the worst month on record in Texas. It's so cold and there's so much snow that there is 20,000 MW of unserved load (rotating blackouts) because they couldn't start the peaking generators. The natural gas generators there are not housed in buildings and they froze. The spot price of wholesale power there climbed to over US$1/kWh. I cringe to think of the retail price of power, if you can get it.
EDIT: On Monday, when the rotating blackouts began, wholesale power was is the range of US$3000 to US$6000 per MWh, so US$3 to US$6 per kWh. In 14 other states in the Southwest Power Pool, the wholesale price of power was often around US$1500/MWh. |
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What a difference a year makes.
In TdP 2020, we found 44 mega primes. All were less than two million digits. And February had an extra day last year.
Today is the 17th. Including some primes that aren't visible yet, there's at least 39 mega primes, three of which are above two million digits, and one is over three million digits.
Maybe we can thank AMD for contributing there. Making higher core count CPU's more affordable and forcing Intel to do the same and bring prices down.
The introduction of LLR2 has been great as well! No more having to compete against those with the latest & greatest hardware. An old quad core now has half a chance for the owner to claim a MEGA! (GPU tasks stay the same though unfortunately :) )
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I suggest that we move TdP to March next year.
We will have more days in the month to crunch.
Plus there are real-world benefits. Some people don't want to do heavy crunching during the warmest months because the air conditioning is costly. March is more of a shoulder season everywhere, including the tropics (it starts to get really hot in April at 15 deg N latitude; but PG has few users at that latitude).
February this year happens to be the worst month on record in Texas. It's so cold and there's so much snow that there is 20,000 MW of unserved load (rotating blackouts) because they couldn't start the peaking generators. The natural gas generators there are not housed in buildings and they froze. The spot price of wholesale power there climbed to over US$1/kWh. I cringe to think of the retail price of power, if you can get it.
EDIT: On Monday, when the rotating blackouts began, wholesale power was is the range of US$3000 to US$6000 per MWh, so US$3 to US$6 per kWh. In 14 other states in the Southwest Power Pool, the wholesale price of power was often around US$1500/MWh.
Certainly merit here.
Feb is one of the hottest months here in Australia. I shut down my GPU's to offset the air con for Dec, Jan. The only reason I've fired them up is for this challenge.
I've had to battle the argument from the wife too...... Nice cool 24 degrees with the air con on and 30 degrees blasting out of my study LOL.
I couldn't even run many MEGA tasks because it was too hot. Fortunately in the last few days it's cooled down a bit and the air con is off.
Of course those that rent their crunchers won't care when the comp is on though. One of the pro arguments for being a renter.
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I suppose it's all a matter perspective and living region. Here it's cold and perfect crunching weather. Not sure a decision should be based on an abnormal (but maybe soon to be normal) weather pattern nor on one state in the US. I would disagree with that completely as no one here has any control on either the weather or a state's infrastructure and who knows, next year it might be March that has the issues. I would vote to leave it as is but that's just one vote.
Rick |
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