Tour de Primes 2012

Welcome to the 4th 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 points to be gained or awards to be won...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. :)

• Yellow Jersey - prime count leader
  
• 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).
  

A record of all Top 5000 primes found during the month of February will be recorded at Sysadm@Nbg's Tour de Primes 2012 page. There you'll find the following tables:

• Prime finder
  
• Prime list
  
• Scoring list
  
• Mountain list
  

The Prime list and Scoring list can be sorted. The scoring list will keep total counts and total score for the Tour. One drawback is that users who have different BOINC id's from PRPNet will be unique names in the list. We'll monitor this and make sure everyone is accounted for.

Currently, the fastest opportunity to find Top 5000 primes is with the PPS (LLR) project. Of course, should someone find a prime in the higher n searches, this would pretty much guarantee the green jersey. All ports in PRPNet are also available for the competition. After the Year of the Dragon Challenge, PPS (LLR) will be loaded with the following range: 4000<k<10000 - (currently at n=725k). This should allow for a more lively competition for the yellow jersey. :)

To participate in BOINC PPS (LLR), all you have to do is select it in your PrimeGrid preferences.

To participate in PRPNet, please see the Welcome to PRPNet thread.

Good Luck, have fun, and enjoy! :D

Previous Winners

- shanky123
- [BOINCstats] LostBoy
- Snf*

- lennart
- lennart
- [SG]marodeur6

- lennart
- s-yama
- lennart

Full rankings can be seen here: 2009 | 2010 | 2011

Totals by Year

2009 2010 2011 Total Primes found 212 309 766 Total Score 457.30 2663.27 21803.72

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On Sysadm@Nbg's Tour de Primes page SGS is listed...
I thought Sophie Germain Primes were too small to enter Top 5000...

On Sysadm@Nbg's Tour de Primes page SGS is listed...
I thought Sophie Germain Primes were too small to enter Top 5000...

One more hint, please make sure the PRPNet projects are loaded enough for the month.

Thanks.

OK, can I make a request that 121 has more loaded in since it's got less than 10 days of work with how many I am doing a day personally?

The Tour Begins!!!

The tour de Primes 2012 is officially open. Remember, only primes recorded in the Top 5000 List will count. A record of all primes found during the month of February will be recorded at Sysadm@Nbg's Tour de Primes 2012 page. There you'll find the following tables:

Prime finder
Prime list
Scoring list
Mountain list

The Prime list and Scoring list can be sorted. The scoring list will keep total counts and total score for the Tour. One drawback is that users who have different BOINC id's from PRPNet will be unique names in the list. We'll monitor this and make sure everyone is accounted for.

Thanks for joining the Tour. Pace yourself and Good Luck to everyone!!!
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The Tour Begins!!!

The tour de Primes 2012 is officially open. Remember, only primes recorded in the Top 5000 List will count. A record of all primes found during the month of February will be recorded at Sysadm@Nbg's Tour de Primes 2012 page. There you'll find the following tables:

Prime finder
Prime list
Scoring list
Mountain list

The Prime list and Scoring list can be sorted. The scoring list will keep total counts and total score for the Tour. One drawback is that users who have different BOINC id's from PRPNet will be unique names in the list. We'll monitor this and make sure everyone is accounted for.

Thanks for joining the Tour. Pace yourself and Good Luck to everyone!!!

... and Aggie The Pew's Ian Smith is first out of the traps.
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Oh Bondage? Up Yours.

http://www.youtube.com/watch?v=ogypBUCb7DA

... and Aggie The Pew's Ian Smith is first out of the traps.

Today's progress towards 1.5M

322,275 total candidates remaining

Leading edge n~1.479M

History
03 Feb: 322,275 total candidates remaining; Leading edge n~1.479M.
02 Feb: 394,222 total candidates remaining; Leading edge n~1.475M.
30 Jan: 553,772 total candidates remaining; Leading edge n~1.463M.
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Since challenge is over, results are here, why you dont enable statistic on home page?
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314187728^¹³¹⁰⁷²+1 GENERALIZED FERMAT :)
93*10^^1029523-1 REPDIGIT PRIME
31*332^³⁶⁷⁵⁶⁰+1 CRUS PRIME
Proud member of team Aggie The Pew. Go Aggie!

We have a High load on DB now. Purge is running and I think we can enable stats tonight or tomorrow.

Lennart

Any particular reason that the recent TRP prime find isn't showing up in the Tour's stats?



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141941*2^4299438-1 is prime!

now it is shown - maybe a short delay?

BOINC primes has to be exported by PrimeGrid and imported by me ... on my side it runs every 15 minutes just before the batch generation of tour stats
____________
Sysadm@Nbg
my current lucky number: 3749*2^1555697+1
PSA-PRPNet-Stats-URL: http://u-g-f.de/PRPNet/

Today's progress towards 1.5M

Looks like we have another 4-5 days to reach 1.5M and to the "promised land" of lower n's. :) Once 1.5M has been reached, 4000<k<10000 - (currently at n=725k) will be loaded.

252,462 total candidates remaining

Leading edge n=1484139

History
04 Feb: 252,462 total candidates remaining; Leading edge n~1.484M.
03 Feb: 322,275 total candidates remaining; Leading edge n~1.479M.
02 Feb: 394,222 total candidates remaining; Leading edge n~1.475M.
30 Jan: 553,772 total candidates remaining; Leading edge n~1.463M.
____________

Today's progress towards 1.5M

Looks like we have another 2-3 days to reach 1.5M and to the "promised land" of lower n's. :) Once 1.5M has been reached, 4000<k<10000 - (currently at n=725k) will be loaded.

125,011 total candidates remaining

Leading edge n=1492166

History
06 Feb: 125,011 total candidates remaining; Leading edge n~1.492M.
05 Feb: 191,854 total candidates remaining; Leading edge n~1.487M.
04 Feb: 252,462 total candidates remaining; Leading edge n~1.484M.
03 Feb: 322,275 total candidates remaining; Leading edge n~1.479M.
02 Feb: 394,222 total candidates remaining; Leading edge n~1.475M.
30 Jan: 553,772 total candidates remaining; Leading edge n~1.463M.
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there is a bug with the low TRPDC-Primes in the stats generation
I will fix it this evening (UTC)

please be patient!
____________
Sysadm@Nbg
my current lucky number: 3749*2^1555697+1
PSA-PRPNet-Stats-URL: http://u-g-f.de/PRPNet/

there is a bug with the low TRPDC-Primes in the stats generation
I will fix it this evening (UTC)

please be patient!

there is a bug with the low TRPDC-Primes in the stats generation
I will fix it this evening (UTC)

please be patient!

Aren't most of these too small to make a top5000 list? So shouldn't they be excluded from the tour (same as SGS)?

Today's progress towards 1.5M

Looks like we have another day to reach 1.5M. Then let the games begin!!! :) Once 1.5M has been reached, 4000<k<10000 - (currently at n=725k) will be loaded.

57,309 total candidates remaining

Leading edge n=1496422

History
07 Feb: 57,309 total candidates remaining; Leading edge n~1.496M.
06 Feb: 125,011 total candidates remaining; Leading edge n~1.492M.
05 Feb: 191,854 total candidates remaining; Leading edge n~1.487M.
04 Feb: 252,462 total candidates remaining; Leading edge n~1.484M.
03 Feb: 322,275 total candidates remaining; Leading edge n~1.479M.
02 Feb: 394,222 total candidates remaining; Leading edge n~1.475M.
30 Jan: 553,772 total candidates remaining; Leading edge n~1.463M.
____________

One Week into the Tour

While the first week of the Tour has been strenuous (trudging through to reach n=1.5M), there is some exciting news: Prime Fermat Divisor Found. Congratulations to Rob for finding: 131*2^1494099+1 Divides F(1494096).

Some more good news is that we'll finally reach 1.5M today (28,295 total remaining) and the smaller n will start to flow out.

As for the current standings in the Tour, both categories are currently identical. The top five are listed below:

Rankings

2009 2010 2011 2012 (to date) Total Primes found 212 309 766 27 Total Score 457.30 2663.27 21803.72 2505.81

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1.5M Achieved!!!

n>725k for 4000<k<10000 is now entering the queue. The first tasks should go out within the next few hours. A special thanks to everyone who helped us reach this goal. The primes will come in droves now...in stark contrast to the current work. :)

This should liven up the Tour. Best of Luck to all.
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I knew i forgot something...
After returning from the US i shut down all unneccessary clients that were on from the challenge...
Will put them back on tonight.

Nice. My count hasn't moved at all since we hit the low range. Still crunching in hope!

2012 Tour - update

Yes, the primes are really coming in now...and the competition is starting to heat up. :) The first 7 days of the tour produced 27 primes and now 3 days later we're up to 71 with another 20+ waiting on xGFN divisibility testing. Speaking of which, there is a growing delay in reporting due to the backlog of xGFN testing. We are now pulling many of those tests off the server and running them independently to help ease the backlog.

Keep up the excellent progress. We already have surpassed the prime scores for 2009 and 2010. 2011 will be much harder to reach as there were a few significant primes found that year. Nevertheless, it's not insurmountable. :)

Yearly Comparison

2009 2010 2011 2012 (to date) Total Primes found 212 309 766 71 Total Score 457.30 2663.27 21803.72 3852.10

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We seem to be out of PPS units.
Please load a new batch?

We seem to be out of PPS units.
Please load a new batch?

Well, we were out for awhile, and the BOINC queue is still low.
____________

Half way through the Tour

Since returning to the lower n's, the primes are being returned in troves. The competition for the (yellow jersey) definitely is heating up. Looks like Lennart is set on recapturing it this year after missing out on it last year. :)

Also, the (green jersey) has found a new home after the recent generalized Fermat mega prime found by Usucapio Libertatis.

13 days remain and we're on course to possibly matching 2011's total score. While not out of reach, it will still be a challenge to get there unless another mega prime is found. Don't lose hope - in 2011, the 321 mega prime was found on the last day of the tour with only 19 hours left. Who knows, maybe the same can happen this year. Stranger things have happened… ;)

The top five are listed below:

Rankings

2009 2010 2011 2012 (to date) Total Primes found 212 309 766 255 Total Score 457.30 2663.27 21803.72 10419.88

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Seventeen days in and no primes in sight.
It can only get better...
Can it???

I think it's the same as with any other challenge: downloaded and returned. Validation may take place later.

Wingman on 20th should not count, only prime founder on 19th.
Wingman on 19th should count, not prime finder on 18th or 20th because it outside of mountain stage.

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My stats
Badge score: 1*1 + 5*1 + 8*3 + 9*11 + 10*1 + 11*1 + 12*3 = 186

Primefinds scoring to the mountain stage are those found on February 19 or those validated on February 19?

I mean, if someone finds a prime on 19, but the wingman only returns is part on February 20 (or later), will it count?

I think it's the same as with any other challenge: downloaded and returned. Validation may take place later.

now, take that you are running a single dual core cpu, it is going to take a long time to find a prime.

John wrote:

Therefore, the informal policy will be "downloaded and returned - validation may take place later".

John wrote:

Therefore, the informal policy will be "downloaded and returned - validation may take place later".

To clarify: Any WUs sitting in a cache that were downloaded prior to Feb 18 00:00 UTC are NOT elligible for the mountain stage?

John wrote:

Therefore, the informal policy will be "downloaded and returned - validation may take place later".

To clarify: Any WUs sitting in a cache that were downloaded prior to Feb 18 00:00 UTC are NOT elligible for the mountain stage?

As much as it pains me to clarify this, but yes.

It's the 11th hour and a bit late to be formalizing a policy. My apologies. I realize this is detrimental to those with a large cache, but it will also prevent those who understand the flaw from submitting large amounts of work completed prior to the stage. I like to think there's no one wishing to do this, but just in case...

As a bonus, this formalization brings the mountain stage in line with the policies of the Challenge series, and thus, consistency to the "fun". ;)

Because of the short notice, is there anyone opposed to extending the stage to 48 hours.

Because of the short notice, is there anyone opposed to extending the stage to 48 hours.

Because of the short notice, is there anyone opposed to extending the stage to 48 hours.

I look an idiot pushing my bike up the hill. I'll go and play with some rats.
____________
Oh Bondage? Up Yours.

http://www.youtube.com/watch?v=ogypBUCb7DA

I mean the green an yellow seem pretty much locked up, yet we continue because well finding primes is fun?

My understanding of the polka dot stage was to take a snapshot of that day and honor the lucky one.

FYI, the server clock seems to be about 5 minutes fast. You're planning on correcting it before the end of the mountain stage?
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Please do not PM me with support questions. Ask on the forums instead. Thank you!

My lucky number is 75898⁵²⁴²⁸⁸+1

My understanding of the polka dot stage was to take a snapshot of that day and honor the lucky one.

Yep, that was it in a nutshell before the clarifying and formalizing were called for. We'll monitor both ways to see if any of this even affects the outcome.

[edit] NOTE: the stats are still set up under the original intention so the eventual outcome will be a subset of those listed prime finders listed.

Will you also be monitoring how much difference this makes in the final outcome?

FYI, the server clock seems to be about 5 minutes fast. You're planning on correcting it before the end of the mountain stage?

Looks like we have a winner. 7 primes in two days are a great feat!

Congrats Scott.

Looks like we have a winner. 7 primes in two days are a great feat!

Congrats Scott.

Thanks Carlos. I'll wait until the official announcement to make sure that a bunch of those weren't cached from a different day. I think my number for the mountain stage might actually be 8 (I found a small GFN on PRPnet in addition to the BOINC ones, but it is being listed with the underscore included as "Scott_Brown"...not sure how that gets fixed?). Several individuals churned out a bunch of work for the mountain stage this year; I obviously got very lucky this time. :)

The Mountain stage has closed, but depending on what calculation method is used for the determination, it may not be final yet.

There are 3 variations of the informal policy that can be looked at.

1. The original intent which is to take a snapshot of the day and only count the primes that come in during the duration of the stage. This is the policy that been used the previous 3 years and has worked nicely. Yes, there's more flexibility with this approach but in the spirit of primefinding, it's definitely honorable.
   
2. The more formalized policy requiring WU's to be downloaded and returned within the duration of the stage…allowing for validation to occur after the stage has completed. This is more restrictive as it requires users to participate in a "Challenge-like" start.
   
3. The most restrictive is requiring WU's to be downloaded, returned, and validated prime within the duration of the stage.
   

All of this hullabaloo really didn't change the outcome. The 2nd policy still allows for validated work to come in so results are not officially known. However, looking at the two policies that are considered (#1 for 24 hours and #2 for 48 hours), you can see there is no difference in the winner.

The top 5 for each of the policies are as follows:

1. 24 hours count score 48 hours count score Scott Brown 4 50.32277956 Scott Brown 8 99.84686638 (_Mystic_) 3 37.94324156 XSmeagolX 3 38.11032988 stefan 2 25.27851030 stevmcn 3 38.00219022 stevmcn 2 25.24213949 (_Mystic_) 3 37.94324156 bdodson* 2 25.17238303 Honza 2 25.54170737 2. 24 hours count score 48 hours count score Scott Brown 4 50.48143893 Scott Brown 7 87.28832343 (_Mystic_) 3 37.94324156 XSmeagolX 3 38.11032988 stevmcn 2 25.24213949 stevmcn 3 38.00219022 stefan 1 12.70880626 (_Mystic_) 3 37.94324156 Jeff17 1 12.65191555 ardo 2 25.65112924 3. 24 hours count score 48 hours count score (_Mystic_) 3 37.94324156 Scott Brown 7 87.28832343 Scott Brown 3 37.76423661 XSmeagolX 3 38.11032988 stevmcn 2 25.24213949 stevmcn 3 38.00219022 stefan 1 12.70880626 (_Mystic_) 3 37.94324156 Jeff17 1 12.65191555 Honza 2 25.54170737

NOTE: #2 still has validated primes being returned.

It appears that the "luck of the day" approach could still be considered as an acceptable policy for the Mountain stage. :)
____________

We seem to be out of PPS units.
Please load a new batch?

This. (Again.)

A few days left in the Tour

Since the last update, the Mountain Stage was run and another Mega Prime has been found. Additionally, the yellow jersey competition has gone red hot as it appears to be a two person competition now.

The Mountain Stage, although not official until the 29th looks like it will go to Scott Brown. Congratulations!

The other Mega Prime was found yesterday in the 27121 Prime Search on PRPNet. However, it was large enough to overtake the current green jersey holder. Still, a very nice find. It brings 2012 total score within striking distance of 2011's record total. There's still time to find another large prime...last year's came in on the FINAL day. ;)

BTW, thank you to EVERYONE participating. This has been a GREAT turnout this year.

The top five are listed below:

Rankings

2009 2010 2011 2012 (to date) Total Primes found 212 309 766 546 Total Score 457.30 2663.27 21803.72 17413.69

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John, will you load 1201-3999 k range?

little correction for the leader of the mountain stage:
Scott Brown: Primes 8 ,Prime Score 99.8468663847

Scott Brown is a "dissolved split personality":
- Scott Brown at BOINC
- Scott_Brown at PRPNet (where blanks in the Username are forbidden)

we discussed this earlier in this or another thread

not affecting any ranking, yet:
odicin is a "dissolved split personality":
- Odicin at BOINC
- odicin at PRPNet


____________
Sysadm@Nbg
my current lucky number: 3749*2^1555697+1
PSA-PRPNet-Stats-URL: http://u-g-f.de/PRPNet/

little correction for the leader of the mountain stage:
Scott Brown: Primes 8 ,Prime Score 99.8468663847

Scott Brown is a "dissolved split personality":
- Scott Brown at BOINC
- Scott_Brown at PRPNet (where blanks in the Username are forbidden)

Actually, we're using option #2 for 48 hours as the "official" rankings this year. The difference is that tasks downloaded prior to the start but returned during the stage are excluded.

btw.: the last 24 hours pass by very quickly; so hurry up to find some more (mega) primes good luck

Not a mega prime means <1M digits, so it should be small(er) units. I'd hazard a guess at Wieferich or Sophie.
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PrimeGrid Challenge Overall standings --- Last update: From Pi to Paddy (2016)

btw.: the last 24 hours pass by very quickly; so hurry up to find some more (mega) primes good luck

While not a mega prime, a new World Record is being verified. ;) More details to come. Who can guess the form???

If it was found in any PRPNet project, you would see a "hidden prime" in the stats, but there is none. So it has to be a BOINC project.

321, Cullen, PSP, SoB, Woodall and GFN would give mega primes, PPS and TRP are far away from a world record in their form... that leaves only SGS, so it should be either a Sophie Germain or a Twin. ;)
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some hints for the stats after the tour:
1) automatic import of BOINC primes and update will stop today at midnight;
2) tomorrow and some days later i will update it manually until John or an other PrimeGrid admin give me the signal for completed export of BOINC primes
3) a final update will run manually
4) the "dissolved split personalities" will be purged and stats will be finalized

btw.: I am expecting the record news from John - no idea what it is ...
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Sysadm@Nbg
my current lucky number: 3749*2^1555697+1
PSA-PRPNet-Stats-URL: http://u-g-f.de/PRPNet/

If it was found in any PRPNet project, you would see a "hidden prime" in the stats, but there is none. So it has to be a BOINC project.

321, Cullen, PSP, SoB, Woodall and GFN would give mega primes, PPS and TRP are far away from a world record in their form... that leaves only SGS, so it should be either a Sophie Germain or a Twin. ;)

Yes you did. Wow, that's awesome!!!
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Please do not PM me with support questions. Ask on the forums instead. Thank you!

My lucky number is 75898⁵²⁴²⁸⁸+1