Welcome to the World Emoji Day Challenge

The fifth challenge of the 2021 Series will be a 3-day challenge in celebration of what is arguably the internet's most momentous and culturally significant holiday: World Emoji Day. The challenge will be offered on the GFN-17-Low subproject, beginning 17 July 22:00 UTC and ending 20 July 22:00 UTC.

As Obi-Wan almost 😲 said, emojis 😍 surround us, penetrate 👉 us, 😽 and bind the internet 🌐💻 together. In 👏 total there are 🔢😻 3,521 emojis 😊 in the 💻 Unicode Standard, as of 🤔💰 September 2020. The most recent 🔌📆 emoji release is Emoji 13.1, which ✌ added 217 new emojis. This 👈 figure includes sequences for gender, ♂♀ skin tone, flags, and the components that are used to 😱🎉 create 📲 keycap, flag, 🏳 and 👏 other sequences.

World Emoji Day is celebrated annually on July 17th in honor 😘 of the date 👫 shown on the calendar emoji 📅, which 👏🐱 itself was 👏💦 picked because it was the date that iCal for Mac was first 🥇 announced at MacWorld Expo in 2002. One could argue it's 😏 rather frivolous and 👏🤠 arbitrary in the scope of "World" holidays, but there's no 💦denying the scope of 👊 impact that 👫😐 emoji have had 😩 on internet culture. The #WorldEmojiDay hashtag alone 🙃🙀 generates 4 billion impressions per year.

To participate in the Challenge, please select only the GFN-17-Low subproject in your PrimeGrid preferences section.

Application Builds

IMPORTANT: Overclocking -- including factory overclocking -- on Nvidia GPUs is very strongly discouraged. Even if your GPU can run other tasks without difficulty, it may be unable to run GFN tasks when overclocked.

Supported platforms:

• Windows: Nvidia GPU (OpenCL): 32 bit, AMD/ATI GPU (OpenCL): 32 bit, CPU: 64 bit, 32 bit
  
• Linux: Nvidia GPU (OpenCL): 32 bit, 64 bit, AMD/ATI GPU (OpenCL): 32 bit, 64 bit, CPU: 64 bit, 32 bit
  
• Mac: Nvidia GPU (OpenCL): 64 bit, AMD/ATI GPU (OpenCL): 64 bit, CPU: 64 bit, 32 bit
  

A Cautionary Reminder

ATTENTION: The primality programs Genefer (for CPUs) and GeneferOCL (for GPUs) are computationally intensive; so, it is vital to have a stable system with good cooling. It does not tolerate "even the slightest of errors." Please see this post for more details on how you can "stress test" your CPU, and please see this post for tips on running GFN on your GPU successfully.

As with all number crunching, excessive heat can potentially cause permanent hardware failure. Please ensure your cooling system is sufficient.


GFN-17-Low WU's are currently averaging 1 hour on CPU and 11 minutes on GPU.
For a general idea of how your GPU stacks up, you can have a look at the fastest GPUs list.

If your CPU is highly overclocked, please consider "stress testing" it. Overclocking your GPU is not recommended at all for GeneferCUDA. Sieving is an excellent alternative for computers that are not able to run Genefer. :)

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

Time zone converter:

The World Clock - Time Zone Converter

NOTE: The countdown clock on the front page uses the host computer time. Therefore, if your computer time is off, so will the countdown clock. For precise timing, use the UTC Time in the data section to the left of the countdown clock.

Scoring information

Scores will be kept for individuals and teams. Only work units issued AFTER July 17th 22:00 UTC and received BEFORE July 20th 22:00 UTC will be considered for credit. 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. :)

More information on Generalized Fermat Numbers and the Genefer program

• Generalized Fermat Number Search Forum
  
• Wikipedia: Generalized Fermat Numbers
  
• Wikipedia: Pierre de Fermat
  
• Yves Gallot's Generalized Primes Search pages
  

Best of Luck to everyone!
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Time flies like an arrow. Fruit flies like a banana.

I'll say 14 primes during the 3-day timeframe. It's wonderful how there's a drought now :)
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My lucky number is 6219*2^3374198+1

My prediction is 7.
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Reno, NV

For those using CPU processing for GFN-17 Low, is multi-threading supported?

If not, we should set the Number of Threads value to 1, correct?

I'm hoping this challenge will advance the leading edge by at least 1M. We'll see how much progress we as a group can make towards catching GFN-17-Low up to where GFN-17-Mega started. It will hopefully be a good amount of progress.
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Just a friendly reminder for Windows 10 users. Don't forget to pause your updates for the challenge! Last thing you want is to have your computer(s) go offline due to an update reboot.
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My Primes
Badge Score: 4*2 + 6*2 + 7*4 + 8*8 + 11*3 + 12*1 = 157

Any idea, why this host of mine is not getting WUs for the CPU?
I see in the log it is requesting for "CPU and AMD/ATI GPU" but only getting for GPU.

EDITH says: Is getting pps-LLR-tasks from another "location".

I'm hoping this challenge will advance the leading edge by at least 1M. We'll see how much progress we as a group can make towards catching GFN-17-Low up to where GFN-17-Mega started. It will hopefully be a good amount of progress.

It Appears that all of my openclatiGFN17LOW tasks are being reported as cpuGFN17LOW tasks. Anyone know why?

Nice 3090 there Nick!
I was surprised to see the lack of 1st it's was getting but I'm sure there's a good reason for that.

Nice 3090 there Nick!
I was surprised to see the lack of 1st it's was getting but I'm sure there's a good reason for that.

I got 84% 1st with a 1660 super, so a 3090 should be abve 90%?

LOL... a 1660 is faster than my Radeon VII :D

One day in -- here are the stats!

Challenge: World Emoji Day
App: 24 (GFN-17-Low)
(As of 2021-07-19 01:08:00 UTC)

451130 tasks have been sent out. [CPU/GPU/anonymous_platform: 198686 (44%) / 252444 (56%) / 0 (0%)]

Of those tasks that have been sent out:

14877 (3%) were aborted. [10338 (2%) / 4539 (1%) / 0 (0%)]
5788 (1%) came back with some kind of an error. [330 (0%) / 5458 (1%) / 0 (0%)]
369255 (82%) have returned a successful result. [156211 (35%) / 213048 (47%) / 0 (0%)]
61235 (14%) are still in progress. [31818 (7%) / 29416 (7%) / 0 (0%)]

Of the tasks that have been returned successfully:

46960 (13%) are pending validation. [18071 (5%) / 28893 (8%) / 0 (0%)]
322280 (87%) have been successfully validated. [138130 (37%) / 184150 (50%) / 0 (0%)]
16 (0%) were invalid. [12 (0%) / 4 (0%) / 0 (0%)]
2 (0%) are inconclusive. [1 (0%) / 1 (0%) / 0 (0%)]

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is b=28069820. The leading edge was at b=26442546 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 6.15% as much as it had prior to the challenge!
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Time flies like an arrow. Fruit flies like a banana.

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is b=28069820. The leading edge was at b=26442546 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 6.15% as much as it had prior to the challenge!

Generalized Fermat Number 17-Low will be tested until b reaches the starting point of 17-Mega.

Somehow i found my RX 580 crunching on this WU for 1 day and 10 hours, i aborted it.
Next picked WU exhibits normal runtime.
Curious.

Day 2 stats!

Challenge: World Emoji Day
App: 24 (GFN-17-Low)
(As of 2021-07-20 06:46:20 UTC)

980763 tasks have been sent out. [CPU/GPU/anonymous_platform: 402342 (41%) / 578421 (59%) / 0 (0%)]

Of those tasks that have been sent out:

20457 (2%) were aborted. [14634 (1%) / 5823 (1%) / 0 (0%)]
15099 (2%) came back with some kind of an error. [451 (0%) / 14651 (1%) / 0 (0%)]
881591 (90%) have returned a successful result. [358777 (37%) / 522911 (53%) / 0 (0%)]
63703 (6%) are still in progress. [28559 (3%) / 35126 (4%) / 0 (0%)]

Of the tasks that have been returned successfully:

53334 (6%) are pending validation. [19788 (2%) / 33643 (4%) / 0 (0%)]
828235 (94%) have been successfully validated. [338975 (38%) / 489260 (55%) / 0 (0%)]
25 (0%) were invalid. [17 (0%) / 8 (0%) / 0 (0%)]
0 (0%) are inconclusive. [0 (0%) / 0 (0%) / 0 (0%)]

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is b=30025416. The leading edge was at b=26442546 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 13.55% as much as it had prior to the challenge!
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Time flies like an arrow. Fruit flies like a banana.

Who has only ever used their own computers?

Who has only ever used their own computers?

Who has only ever used their own computers?

I miss the "at the conclusion of the challenge" posts ;)
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My lucky number is 6219*2^3374198+1

And we're done! Here are the final stats. And I do apologize for missing the end reminder -- I literally slept through my alarm :') Cleanup tasks are available now, should take about 2 weeks.

Challenge: World Emoji Day
App: 24 (GFN-17-Low)
(As of 2021-07-21 03:40:34 UTC)

1226801 tasks have been sent out. [CPU/GPU/anonymous_platform: 493941 (40%) / 732860 (60%) / 0 (0%)]

Of those tasks that have been sent out:

34554 (3%) were aborted. [20250 (2%) / 14304 (1%) / 0 (0%)]
19385 (2%) came back with some kind of an error. [455 (0%) / 18930 (2%) / 0 (0%)]
1129491 (92%) have returned a successful result. [455033 (37%) / 674458 (55%) / 0 (0%)]
21815 (2%) are still in progress. [8556 (1%) / 13257 (1%) / 0 (0%)]

Of the tasks that have been returned successfully:

21418 (2%) are pending validation. [8385 (1%) / 13013 (1%) / 0 (0%)]
1108037 (98%) have been successfully validated. [446622 (40%) / 661435 (59%) / 0 (0%)]
41 (0%) were invalid. [28 (0%) / 13 (0%) / 0 (0%)]
1 (0%) are inconclusive. [1 (0%) / 0 (0%) / 0 (0%)]

The current leading edge (i.e., latest work unit for which work has actually been sent out to a host) is b=30891232. The leading edge was at b=26442546 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 16.82% as much as it had prior to the challenge!
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Time flies like an arrow. Fruit flies like a banana.

Who has only ever used their own computers?

My goal was to break the top 200 of this challenge. Finished at 199 :)

This was done using a single 1080Ti running non-stop (except while I was using it to play games one evening). Could have been a bit higher had I not played a little GTA5.

How many primes were found? I lost track after 7.

Cleanup Status:

Jul 21: 13331 tasks outstanding; 3938 affecting individual (144) scoring positions; 521 affecting team (20) scoring positions.
Jul 22: 8745 tasks outstanding; 2063 affecting individual (101) scoring positions; 241 affecting team (14) scoring positions.
Jul 23: 6112 tasks outstanding; 793 affecting individual (76) scoring positions; 77 affecting team (9) scoring positions.
Jul 24: 3671 tasks outstanding; 317 affecting individual (49) scoring positions; 20 affecting team (5) scoring positions.
Jul 25: 2380 tasks outstanding; 111 affecting individual (31) scoring positions; 12 affecting team (4) scoring positions.
Jul 26: 483 tasks outstanding; 14 affecting individual (9) scoring positions; 0 affecting team (0) scoring positions.
Jul 27: 92 tasks outstanding; 1 affecting individual (1) scoring positions; 0 affecting team (0) scoring positions.
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Time flies like an arrow. Fruit flies like a banana.

The results are final!

During these 5 days, we completed over 1.1 MILLION tasks!!! We found a whopping 27 new GFN-17-Low primes, boosting the project's average output to more than 100 times typical.

The challenge created a seriously impressive dent in the remaining GFN-17-Low work, advancing the leading edge by 16%, or from ~970,000 digits to ~980,000. One or two more challenges like this would complete the project!

114 teams and 504 individuals participated in the Challenge.

Top Three Individuals:
1. Skillz
2. boss
3. tng

Top Three Teams:
1. TeAm AnandTech
2. SETI.Germany
3. Antarctic Crunchers


The next Challenge is the Once In A Blue Moon Challenge, which starts August 12. We hope to see you there! Thank you again to everyone. We really appreciate your *phenomenal* participation and hope you had fun!
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Time flies like an arrow. Fruit flies like a banana.

Here is a chart showing how the leading edge for GFN-17 Low has progressed since I began tracking it. The challenge was definitely quite the boost.

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Nice and impressive. I extended the chart with the list of primes (http://www.primegrid.com/primes/primes.php).

Charting based on the primes that were actually found was a great idea. Unfortunately a strategy that only works well for projects that regularly produce primes.
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