Welcome to the International Day of Education Challenge

Education is a human right, a public good and a public responsibility.

The United Nations General Assembly proclaimed 24 January as International Day of Education, in celebration of the role of education for peace and development.

Without inclusive and equitable quality education and lifelong opportunities for all, countries will not succeed in achieving gender equality and breaking the cycle of poverty that is leaving millions of children, youth and adults behind.

Today, 258 million children and youth still do not attend school; 617 million children and adolescents cannot read and do basic math; less than 40% of girls in sub-Saharan Africa complete lower secondary school and some four million children and youth refugees are out of school. Their right to education is being violated and it is unacceptable.

Because, now more than ever, we need to mobilize, UNESCO, on the occasion of the International Day of Education, is issuing a call for action - action for education. High-level political authorities and citizens, States and associations, teachers and parents of students: everyone, in their own way, has a role to play in making the right to education a reality for all. It is our responsibility to future generations.

— Audrey Azoulay, Director General, Message on the occasion of the International Day of Education

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In observance of UNESCO's International Day of Education, PrimeGrid will be running a 1-day challenge on 321-sieve. The Challenge will be on January 24th from 00:00:00 UTC until 23:59:59 UTC.

To participate in the Challenge, please select only the 321-Sieve subproject in your PrimeGrid preferences section.

Application builds are available for the following:

• Microsoft Windows (98 or later) running on an Intel x86-compatible CPU
  
• Microsoft Windows running on an AMD x86_64 or Intel EM64T CPU
  
• Linux running on an Intel x86-compatible CPU
  
• Linux running on an AMD x86_64 or Intel EM64T CPU
  
• Mac OS 10.5+ running on an Intel 64-bit CPU
  

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 above the countdown clock.

Scoring information

Scores will be kept for individuals and teams. Only work units issued AFTER January 24th 00:00 UTC and received BEFORE January 25th 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 WU's instead of DETACHING, RESETTING, or PAUSING.

ABORTING WU's alows 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.

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

About 321 Search

321 Search began in February 2003 from a post by Paul Underwood seeking help from interested parties in a prime search attempt of the form 3*2^n-1. The initial goal was to build upon the completed work at Proth Search and extend the list of known primes to an exponent of 1 million (n=1M). That was quickly achieved so they advanced their goal to finding a mega prime for which they sieved up to n=5M.

As seen on PrimeGrid's front page, that goal was achieved on 23 Mar 2008, 7:57:28 UTC, when Dylan Bennett of Canada returned a positive result for n=4235414 (3*2^4235414-1). official announcement | decimal representation

PrimeGrid added the +1 form and continues the search up to n=50M.

Primes known for 3*2^n+1 occur at the following n (PrimeGrid's finds in bold & linked):
1, 2, 5, 6, 8, 12, 18, 30, 36, 41, 66, 189, 201, 209, 276, 353, 408, 438, 534, 2208, 2816, 3168, 3189, 3912, 20909, 34350, 42294, 42665, 44685, 48150, 54792, 55182, 59973, 80190, 157169, 213321, 303093, 362765, 382449, 709968, 801978, 916773, 1832496, 2145353, 2291610, 2478785, 5082306, 7033641, 10829346

Primes known for 3*2^n-1 occur at the following n (PrimeGrid's finds in bold & linked):
1, 2, 3, 4, 6, 7, 11, 18, 34, 38, 43, 55, 64, 76, 94, 103, 143, 206, 216, 306, 324, 391, 458, 470, 827, 1274, 3276, 4204, 5134, 7559, 12676, 14898, 18123, 18819, 25690, 26459, 41628, 51387, 71783, 80330, 85687, 88171, 97063, 123630, 155930, 164987, 234760, 414840, 584995, 702038, 727699, 992700, 1201046, 1232255, 2312734, 3136255, 4235414, 6090515, 11484018, 11731850, 11895718


What is sieving?

Sieving is the first step to prime finding. In general, a sieve separates wanted/desired elements from unwanted material using a tool such as a mesh, net or other filtration or distillation methods. The word "sift" derives from this term. (Wikipedia - Sieve)

In PrimeGrid's case, the desired elements ultimately are prime numbers and the unwanted material are composite numbers. Our tool of choice for 321 sieve is Geoffrey Reynolds' sr2sieve program. It eliminates possible candidates by removing numbers that have small factors. As this process is much faster than primality testing, it is good to thoroughly sieve a data set before primality testing.

Sieving removes many candidates at the beginning. However, the deeper the sieve goes, the slower the rate of removal, till eventually sieving removes candidates at the same rate as primality testing. This is sometimes referred to as "optimal depth". Primality testing is recommended at this point.

There are many factors that determine how much time and how deep to sieve. After sieving, all the remaining candidates must be primality tested to determine their "prime" status.


Best of Luck to everyone!

Instructions:

Thanks for pointing that out, we're updating that now! It'll be a max of 1,000 for Individual and 375 for Team, using the same points scale that the other challenge lengths use.

From your post I conclude that you MTed that task, but how is that possible with 321 sieve??
If I missed something in JeppeSN's post, it's because the picture won't load.
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My lucky number is 6219*2^3374198+1

I thought only LLR can be MTed, but I didn't understand your last sentence.
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My lucky number is 6219*2^3374198+1

yeah, not all PCs are created equal;

My English is to bad, sorry. perhaps you ask a Supporter,

T-Armstrong, looking at your computer, you're running 321 sv single-threaded, but also PPS sv on GPU. Maybe you're confusing the two here? To my knowledge, MT is exclusively for LLR tasks.
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Long live the sievers.

+ Encyclopaedia Metallum: The Metal Archives +

Please Note ;

I crunch with 12 CPU's per Task : Time per Task is also 3 mins - 6 sec.

Thank you for clarifying! I was shocked for a moment ;) 😂😂
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My lucky number is 6219*2^3374198+1

Education challenge huh.

We don't need no education.
We don't need no thought control.
No dark sarcasm in the classroom.
Hey teachers, leave those kids alone.
All in all you're just a another brick in the wall.
"Pink Floyd"

Sorry had to do it! Great tune for sure.

Nice short challenge, nice and cool outside.
Good luck.
1st challenge of the year, good time to wish everyone a "Happy New year!"
May the primes be with you.

1 hour down, 23 to go...


Challenge: International Education Day
App: 12 (321-Sieve)
(As of 2020-01-24 01:01:54 UTC)

42951 tasks have been sent out. [CPU/GPU/anonymous_platform: 42951 (100%) / 0 (0%) / 0 (0%)]

Of those tasks that have been sent out:

9 (0%) were aborted. [9 (0%) / 0 (0%) / 0 (0%)]
8 (0%) came back with some kind of an error. [8 (0%) / 0 (0%) / 0 (0%)]
2110 (5%) have returned a successful result. [2110 (5%) / 0 (0%) / 0 (0%)]
40825 (95%) are still in progress. [40832 (95%) / 0 (0%) / 0 (0%)]

Of the tasks that have been returned successfully:

1814 (86%) are pending validation. [1814 (86%) / 0 (0%) / 0 (0%)]
296 (14%) have been successfully validated. [296 (14%) / 0 (0%) / 0 (0%)]
0 (0%) were invalid. [0 (0%) / 0 (0%) / 0 (0%)]
0 (0%) are inconclusive. [0 (0%) / 0 (0%) / 0 (0%)]
____________
My lucky number is 75898⁵²⁴²⁸⁸+1

I failed to wake myself at that first hour... But:

Education challenge huh.

We don't need no education.
We don't need no thought control.
No dark sarcasm in the classroom.
Hey teachers, leave those kids alone.
All in all you're just a another brick in the wall.
"Pink Floyd"

1st challenge of the year, good time to wish everyone a "Happy New year!"
May the primes be with you.

Just a little side question:

285 GPV67 Carl Sagan 8 538.39 14
285 JakubH Czech National Team 8 538.39 14
287 paleseptember Free-DC 8 538.39 14
287 dannyridel AMD Users 8 538.39 14

Just a little side question:

285 GPV67 Carl Sagan 8 538.39 14
285 JakubH Czech National Team 8 538.39 14
287 paleseptember Free-DC 8 538.39 14
287 dannyridel AMD Users 8 538.39 14

Why would users with the same number of challenge credit have different ranks?

In a couple of minutes we'll be halfway through the challenge. Here's what we've done so far:


Challenge: International Education Day
App: 12 (321-Sieve)
(As of 2020-01-24 11:45:35 UTC)

220888 tasks have been sent out. [CPU/GPU/anonymous_platform: 220888 (100%) / 0 (0%) / 0 (0%)]

Of those tasks that have been sent out:

1547 (1%) were aborted. [1547 (1%) / 0 (0%) / 0 (0%)]
376 (0%) came back with some kind of an error. [376 (0%) / 0 (0%) / 0 (0%)]
130907 (59%) have returned a successful result. [130910 (59%) / 0 (0%) / 0 (0%)]
88076 (40%) are still in progress. [88076 (40%) / 0 (0%) / 0 (0%)]

Of the tasks that have been returned successfully:

46870 (36%) are pending validation. [46873 (36%) / 0 (0%) / 0 (0%)]
84025 (64%) have been successfully validated. [84025 (64%) / 0 (0%) / 0 (0%)]
0 (0%) were invalid. [0 (0%) / 0 (0%) / 0 (0%)]
12 (0%) are inconclusive. [12 (0%) / 0 (0%) / 0 (0%)]


Half a day and we've sent out 220 thousand tasks, and 130 thousand tasks have been completed. Normal for a full day is is about 27 thousand tasks, so depending on which number you want to use we're doing between 9 and 17 times what we normally do.

Someone will inevitably ask how much all of this advances the sieve, Each task does 10G of sieving, and since we double check these tasks, each task is effectively 5G. Every 200 thousand tasks is therefore 1P of sieving. Our original target goal was a depth of 167P, and on January 8th we were at 42P. As of this moment, we're at 46.2P. Given that 220 thousand tasks were sent out, we were at 45.1P when the challenge began.
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My lucky number is 75898⁵²⁴²⁸⁸+1

We've only just begun, but it's time to discuss the end of the challenge!


At the Conclusion of the Challenge

When the challenge completes, 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.

Likewise, if you're shutting down the computer for an extended period of time, or deleting the VM (Virtual Machine), please ABORT all remaining tasks first. Also, be aware that merely shutting off a cloud server doesn't stop the billing. You have to destroy/delete the server if you don't want to continue to be charged for it.

Thank you!
____________
My lucky number is 75898⁵²⁴²⁸⁸+1

Just a little side question:

285 GPV67 Carl Sagan 8 538.39 14
285 JakubH Czech National Team 8 538.39 14
287 paleseptember Free-DC 8 538.39 14
287 dannyridel AMD Users 8 538.39 14

Why would users with the same number of challenge credit have different ranks?

This is the first time we've run a challenge where ties were possible, the credit per task was not an integer, and the leaderboard generator automatically adjusted the ranks for tie scores, so we've never seen this problem before.

This is the first time we've run a challenge where ties were possible, the credit per task was not an integer, and the leaderboard generator automatically adjusted the ranks for tie scores, so we've never seen this problem before.

What about former sieve challenges and the AP last september?
Thanks, although I'm out of 300 now...😢😢

oh, good eyes!
____________
My lucky number is 6219*2^3374198+1

This is the first time we've run a challenge where ties were possible, the credit per task was not an integer, and the leaderboard generator automatically adjusted the ranks for tie scores, so we've never seen this problem before.

What about former sieve challenges and the AP last september?
Thanks, although I'm out of 300 now...😢😢

Mike already noted this in his post (I bolded the relevant section).

It's all fixed! Thank you!
____________
My lucky number is 6219*2^3374198+1

Five and a ahlf hours to go...


Challenge: International Education Day
App: 12 (321-Sieve)
(As of 2020-01-24 18:28:22 UTC)

328030 tasks have been sent out. [CPU/GPU/anonymous_platform: 328030 (100%) / 0 (0%) / 0 (0%)]

Of those tasks that have been sent out:

2171 (1%) were aborted. [2171 (1%) / 0 (0%) / 0 (0%)]
694 (0%) came back with some kind of an error. [694 (0%) / 0 (0%) / 0 (0%)]
225407 (69%) have returned a successful result. [225413 (69%) / 0 (0%) / 0 (0%)]
99787 (30%) are still in progress. [99787 (30%) / 0 (0%) / 0 (0%)]

Of the tasks that have been returned successfully:

61165 (27%) are pending validation. [61171 (27%) / 0 (0%) / 0 (0%)]
164234 (73%) have been successfully validated. [164234 (73%) / 0 (0%) / 0 (0%)]
0 (0%) were invalid. [0 (0%) / 0 (0%) / 0 (0%)]
8 (0%) are inconclusive. [8 (0%) / 0 (0%) / 0 (0%)]
____________
My lucky number is 75898⁵²⁴²⁸⁸+1

We're done!


Challenge: International Education Day
App: 12 (321-Sieve)
(As of 2020-01-25 00:03:28 UTC)

401258 tasks have been sent out. [CPU/GPU/anonymous_platform: 401258 (100%) / 0 (0%) / 0 (0%)]

Of those tasks that have been sent out:

11308 (3%) were aborted. [11308 (3%) / 0 (0%) / 0 (0%)]
955 (0%) came back with some kind of an error. [955 (0%) / 0 (0%) / 0 (0%)]
307333 (77%) have returned a successful result. [307333 (77%) / 0 (0%) / 0 (0%)]
80459 (20%) are still in progress. [80453 (20%) / 0 (0%) / 0 (0%)]

Of the tasks that have been returned successfully:

58722 (19%) are pending validation. [58722 (19%) / 0 (0%) / 0 (0%)]
248607 (81%) have been successfully validated. [248607 (81%) / 0 (0%) / 0 (0%)]
0 (0%) were invalid. [0 (0%) / 0 (0%) / 0 (0%)]
4 (0%) are inconclusive. [4 (0%) / 0 (0%) / 0 (0%)]


Great job everyone!

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My lucky number is 75898⁵²⁴²⁸⁸+1

The cleanup begins! I expect it to take 2 to 4 weeks.


Cleanup status:
Jan 25: International Education Day: 58048 tasks outstanding; 53567 affecting individual (299) scoring positions; 38390 affecting team (88) scoring positions.

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My lucky number is 75898⁵²⁴²⁸⁸+1

You cannot find primes in a sieving contest. But if you go to Your account, under active project "321 Prime Search tasks (Sieve)", there is a field "Factors found" where you can see how many "hits" you have had. It includes all of your history, not just the challenge day. /JeppeSN

Cleanup Status:
Jan 26: International Education Day: 16147 tasks outstanding; 12679 affecting individual (289) scoring positions; 2165 affecting team (49) scoring positions.
Jan 27: International Education Day: 8743 tasks outstanding; 5683 affecting individual (258) scoring positions; 568 affecting team (33) scoring positions.
Jan 28: International Education Day: 5046 tasks outstanding; 2376 affecting individual (201) scoring positions; 196 affecting team (23) scoring positions.
Jan 29: International Education Day: 2521 tasks outstanding; 838 affecting individual (137) scoring positions; 60 affecting team (16) scoring positions.
Jan 30: International Education Day: 710 tasks outstanding; 108 affecting individual (52) scoring positions; 8 affecting team (6) scoring positions.
Jan 31: International Education Day: 160 tasks outstanding; 15 affecting individual (13) scoring positions; 0 affecting team (0) scoring positions.

The (corrected) results are final!

Top 3 Individuals:
1. davidBAM
2. RFGuy_KCCO
3. Scott Brown

Top 3 Teams:
1. Czech National Team
2. Aggie The Pew
3. [H]ard | OCP

Congrats to all the participants!

I have Boinc Manager Pproblem

PrimeGrid: Notice from BOINC
Your settings do not allow fetching tasks for CPU. Um dies zu beheben, können Siedie Projekteinstellungen auf der Projektwebseite ändern.


I dont know what it is

every time, if this news come in B Manager - so my PC shut down

I need Support please

Nothing is wrong but this News come every Day 2 times again - PC is down.


How to repair ?


where is the Problem

Old disaster ? my Settings are right now

My Graphic tasks for PPS - Sive run 4:15 Min / sec

wrong

it must be - 3:32

RTX driver wrong ?

This challenge is long over. No need to keep posting unrelated messages here. Locked.
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My lucky number is 75898⁵²⁴²⁸⁸+1