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1) Message boards : Number crunching : Geminids Shower Challenge (Message 152572)
Posted 6 hours ago by Profile Michael GutierrezProject donor
Day 2 stats!

Challenge: Geminids Shower
App: 16 (GFN-21)
(As of 2021-12-09 04:42:52 UTC)

15331 tasks have been sent out. [CPU/GPU/anonymous_platform: 12521 (82%) / 2804 (18%) / 6 (0%)]

Of those tasks that have been sent out:

2414 (16%) were aborted. [2136 (14%) / 278 (2%) / 0 (0%)]
1240 (8%) came back with some kind of an error. [3 (0%) / 1237 (8%) / 0 (0%)]
1243 (8%) have returned a successful result. [521 (3%) / 722 (5%) / 0 (0%)]
10434 (68%) are still in progress. [9861 (64%) / 567 (4%) / 6 (0%)]

Of the tasks that have been returned successfully:

1062 (85%) are pending validation. [429 (35%) / 633 (51%) / 0 (0%)]
178 (14%) have been successfully validated. [90 (7%) / 88 (7%) / 0 (0%)]
1 (0%) were invalid. [0 (0%) / 1 (0%) / 0 (0%)]
2 (0%) are inconclusive. [2 (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=762006. The leading edge was at b=731200 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 4.21% as much as it had prior to the challenge!

Challenge: Geminids Shower
App: 17 (GFN-22)
(As of 2021-12-09 04:42:53 UTC)

581 tasks have been sent out. [CPU/GPU/anonymous_platform: 0 (0%) / 581 (100%) / 0 (0%)]

Of those tasks that have been sent out:

34 (6%) were aborted. [0 (0%) / 34 (6%) / 0 (0%)]
253 (44%) came back with some kind of an error. [0 (0%) / 253 (44%) / 0 (0%)]
71 (12%) have returned a successful result. [0 (0%) / 71 (12%) / 0 (0%)]
223 (38%) are still in progress. [0 (0%) / 223 (38%) / 0 (0%)]

Of the tasks that have been returned successfully:

54 (76%) are pending validation. [0 (0%) / 54 (76%) / 0 (0%)]
17 (24%) have been successfully validated. [0 (0%) / 17 (24%) / 0 (0%)]
0 (0%) were invalid. [0 (0%) / 0 (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=215064. The leading edge was at b=214620 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 0.21% as much as it had prior to the challenge!

Challenge: Geminids Shower
App: 31 (DYFL)
(As of 2021-12-09 04:42:53 UTC)

2068 tasks have been sent out. [CPU/GPU/anonymous_platform: 0 (0%) / 2068 (100%) / 0 (0%)]

Of those tasks that have been sent out:

615 (30%) were aborted. [0 (0%) / 615 (30%) / 0 (0%)]
550 (27%) came back with some kind of an error. [0 (0%) / 550 (27%) / 0 (0%)]
232 (11%) have returned a successful result. [0 (0%) / 232 (11%) / 0 (0%)]
671 (32%) are still in progress. [0 (0%) / 671 (32%) / 0 (0%)]

Of the tasks that have been returned successfully:

199 (86%) are pending validation. [0 (0%) / 199 (86%) / 0 (0%)]
33 (14%) have been successfully validated. [0 (0%) / 33 (14%) / 0 (0%)]
0 (0%) were invalid. [0 (0%) / 0 (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=950008. The leading edge was at b=947408 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 0.27% as much as it had prior to the challenge!
2) Message boards : Number crunching : Geminids Shower Challenge (Message 152549)
Posted 1 day ago by Profile Michael GutierrezProject donor
Stats for Day 1 of the challenge! Separated by project:

Challenge: Geminids Shower
App: 16 (GFN-21)
(As of 2021-12-08 00:21:43 UTC)

12068 tasks have been sent out. [CPU/GPU/anonymous_platform: 10990 (91%) / 1072 (9%) / 6 (0%)]

Of those tasks that have been sent out:

1783 (15%) were aborted. [1750 (15%) / 33 (0%) / 0 (0%)]
209 (2%) came back with some kind of an error. [1 (0%) / 208 (2%) / 0 (0%)]
239 (2%) have returned a successful result. [93 (1%) / 146 (1%) / 0 (0%)]
9837 (82%) are still in progress. [9146 (76%) / 685 (6%) / 6 (0%)]

Of the tasks that have been returned successfully:

215 (90%) are pending validation. [80 (33%) / 135 (56%) / 0 (0%)]
24 (10%) have been successfully validated. [13 (5%) / 11 (5%) / 0 (0%)]
0 (0%) were invalid. [0 (0%) / 0 (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=757708. The leading edge was at b=731200 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 3.63% as much as it had prior to the challenge!

Challenge: Geminids Shower
App: 17 (GFN-22)
(As of 2021-12-08 00:21:44 UTC)

308 tasks have been sent out. [CPU/GPU/anonymous_platform: 0 (0%) / 308 (100%) / 0 (0%)]

Of those tasks that have been sent out:

16 (5%) were aborted. [0 (0%) / 16 (5%) / 0 (0%)]
100 (32%) came back with some kind of an error. [0 (0%) / 100 (32%) / 0 (0%)]
2 (1%) have returned a successful result. [0 (0%) / 2 (1%) / 0 (0%)]
190 (62%) are still in progress. [0 (0%) / 190 (62%) / 0 (0%)]

Of the tasks that have been returned successfully:

2 (100%) are pending validation. [0 (0%) / 2 (100%) / 0 (0%)]
0 (0%) have been successfully validated. [0 (0%) / 0 (0%) / 0 (0%)]
0 (0%) were invalid. [0 (0%) / 0 (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=214810. The leading edge was at b=214620 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 0.09% as much as it had prior to the challenge!

Challenge: Geminids Shower
App: 31 (DYFL)
(As of 2021-12-08 00:21:44 UTC)

1623 tasks have been sent out. [CPU/GPU/anonymous_platform: 0 (0%) / 1623 (100%) / 0 (0%)]

Of those tasks that have been sent out:

586 (36%) were aborted. [0 (0%) / 586 (36%) / 0 (0%)]
430 (26%) came back with some kind of an error. [0 (0%) / 430 (26%) / 0 (0%)]
16 (1%) have returned a successful result. [0 (0%) / 16 (1%) / 0 (0%)]
591 (36%) are still in progress. [0 (0%) / 591 (36%) / 0 (0%)]

Of the tasks that have been returned successfully:

16 (100%) are pending validation. [0 (0%) / 16 (100%) / 0 (0%)]
0 (0%) have been successfully validated. [0 (0%) / 0 (0%) / 0 (0%)]
0 (0%) were invalid. [0 (0%) / 0 (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=950008. The leading edge was at b=947408 at the beginning of the challenge. Since the challenge started, the leading edge has advanced 0.27% as much as it had prior to the challenge!
3) Message boards : News : Geminids Shower Challenge starts December 7th (Message 152482)
Posted 5 days ago by Profile Michael GutierrezProject donor
The ninth and final challenge of the 2021 Series will be a 10-day challenge marking the yearly Geminids Meteor Shower. The challenge will be offered on the GFN-21, GFN-22, and GFN-DYFL subprojects, beginning 7 December 07:00 UTC and ending 17 December 07:00 UTC.

To participate in the Challenge, please select only the GFN-21 and/or GFN-22 and/or GFN-DYFL subprojects in your PrimeGrid preferences section.

For more info and discussion, check out the forum thread for this challenge: https://www.primegrid.com/forum_thread.php?id=9804&nowrap=true#152440
4) Message boards : Number crunching : Geminids Shower Challenge (Message 152440)
Posted 7 days ago by Profile Michael GutierrezProject donor
Welcome to the Geminids Shower Challenge

The ninth and final challenge of the 2021 Series will be a 10-day challenge marking the yearly Geminids Meteor Shower. The challenge will be offered on the GFN-21, GFN-22, and GFN-DYFL subprojects, beginning 7 December 07:00 UTC and ending 17 December 07:00 UTC.

The Geminid meteor shower – always a favorite among the annual meteor showers – should peak in 2021 on the night of Monday, December 13 into Tuesday, December 14. The Geminids are a reliable shower for those who watch around 2 a.m. local time from a dark-sky location. This year, a waxing gibbous moon will hang around most of the night, washing out the fainter meteors. Regardless, it’s always worth a look!
For more info: https://earthsky.org/astronomy-essentials/everything-you-need-to-know-geminid-meteor-shower/

To participate in the Challenge, please select only the GFN-21 and/or GFN-22 and/or GFN-DYFL subprojects in your PrimeGrid preferences section.

Note: The deadline for these WUs is longer than ten days, so make sure your computer is able to return the WUs within the challenge time-frame. Only tasks issued AFTER the start time and returned BEFORE the finish time will be counted.


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-21 WU's are currently averaging 14 days on CPU and 13 hours on GPU.
    GFN-22 WU's are currently averaging 49 hours on GPU.
    GFN-DYFL WU's are currently averaging 43 hours on GPU (but they are significantly longer tasks, usually only taken by faster GPUs).
    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.



Multi-threading optimization instructions (For GFN-21 only)

If you're running GFN-21 on a CPU and looking to maximize your computer's performance during this challenge, or when running LLR in general, you may find this information useful.


  • Your mileage may vary. Before the challenge starts, take some time and experiment and see what works best on your computer.
  • If you have an Intel CPU with hyperthreading, either turn off the hyperthreading in the BIOS, or set BOINC to use 50% of the processors.
    [list]
  • 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 GFN's multithreaded mode. It requires a little bit of setup, but it's worth the effort. Follow these steps:

    • Create a app_config.xml file in the directory C:\ProgramData\BOINC\projects\www.primegrid.com\ (or wherever your BOINC data directory is located). For a quad core CPU, the file should contain the following contents. Change the two occurrences of "4" to the number of actual cores your computer has.

      <app_config> <app_version> <app_name>genefer</app_name> <cmdline>-nt 4</cmdline> <plan_class>cpuGFN21</plan_class> <avg_ncpus>4</avg_ncpus> </app_version> </app_config>


    • After creating the file, click on "Options/Read config files". You should then restart BOINC or reboot.
    • The first time BOINC downloads a GFN task, it may act a little strange and download 4 tasks instead of 1. The run times on this first set of tasks may look a bit strange too. This is normal. This will also occur anytime BOINC downloads more than one task at a time. This can be avoided by setting "Use at most [ 1 ] % of the CPUs" before you download GFN tasks. After one task was downloaded, increase the percentage.
    • Some people have observed that when using multithreaded GFN, hyperthreading is actually beneficial. We encourage you to experiment and see what works best for you.



    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 December 7//thst 07:00:00 UTC and received BEFORE December 17th 07:00:00 UTC will be considered for credit.

      In this challenge we will be using the same scoring algorithm as we use to determine BOINC credits, including bonuses! Because the score bonuses are included in the challenge score, it is advantageous to run the longer tasks if you can manage to finish them within the 10 day challenge window. This will land you a higher position in the leaderboard and therefor a higher score on the overall leaderboard.



    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



    Best of Luck to everyone!

  • 5) Message boards : Number crunching : Euler's Number Challenge (Message 152430)
    Posted 9 days ago by Profile Michael GutierrezProject donor
    Cleanup Status:
    Nov 27: 9854 tasks outstanding; 4781 affecting individual (259) scoring positions; 1969 affecting team (46) scoring positions.
    Nov 28: 8739 tasks outstanding; 3998 affecting individual (250) scoring positions; 1715 affecting team (43) scoring positions.
    Nov 29: 8108 tasks outstanding; 3628 affecting individual (242) scoring positions; 1553 affecting team (42) scoring positions.
    Nov 30: 7571 tasks outstanding; 3247 affecting individual (237) scoring positions; 1423 affecting team (41) scoring positions.
    Dec 1: 3612 tasks outstanding; 970 affecting individual (165) scoring positions; 457 affecting team (25) scoring positions.
    Dec 2: 1997 tasks outstanding; 316 affecting individual (97) scoring positions; 209 affecting team (14) scoring positions.
    Dec 3: 1521 tasks outstanding; 211 affecting individual (78) scoring positions; 142 affecting team (12) scoring positions.
    Dec 4: 778 tasks outstanding; 83 affecting individual (50) scoring positions; 8 affecting team (5) scoring positions.
    Dec 5: 609 tasks outstanding; 55 affecting individual (37) scoring positions; 6 affecting team (4) scoring positions.
    Dec 6: 551 tasks outstanding; 46 affecting individual (31) scoring positions; 6 affecting team (4) scoring positions.
    Dec 7: 475 tasks outstanding; 42 affecting individual (28) scoring positions; 6 affecting team (4) scoring positions.
    Dec 8: 391 tasks outstanding; 32 affecting individual (21) scoring positions; 5 affecting team (3) scoring positions.
    6) Message boards : Number crunching : Martin Gardner's Birthday Challenge (Message 152426)
    Posted 10 days ago by Profile Michael GutierrezProject donor
    The results are final!

    During these 7 days, we completed more than 14,000 tasks. No new primes were found during the challenge, but it brought a lot of needed attention to the GCW subproject, pushing the leading edge by about 9%. The challenge boosted the project's average output to 20 times typical.

    105 teams and 443 individuals participated in the Challenge.

    Top Three Individuals:
    1. vaughan
    2. tng
    3. xii5ku


    Top Three Teams:
    1. TeAm AnandTech
    2. Czech National Team
    3. SETI.Germany

    Thank you again to everyone. We really appreciate your participation and hope you had fun!
    7) Message boards : Number crunching : Euler's Number Challenge (Message 152419)
    Posted 11 days ago by Profile Michael GutierrezProject donor
    Cleanup Status:
    Nov 27: 9854 tasks outstanding; 4781 affecting individual (259) scoring positions; 1969 affecting team (46) scoring positions.
    Nov 28: 8739 tasks outstanding; 3998 affecting individual (250) scoring positions; 1715 affecting team (43) scoring positions.
    8) Message boards : Number crunching : Euler's Number Challenge (Message 152397)
    Posted 13 days ago by Profile Michael GutierrezProject donor
    And we're done! Final stats below, cleanup starting now!

    Challenge: Euler's Number
    App: 11 (AP27)
    (As of 2021-11-26 04:50:15 UTC)

    338642 tasks have been sent out. [CPU/GPU/anonymous_platform: 45903 (14%) / 292739 (86%) / 0 (0%)]

    Of those tasks that have been sent out:

    8924 (3%) were aborted. [7318 (2%) / 1606 (0%) / 0 (0%)]
    5072 (1%) came back with some kind of an error. [112 (0%) / 4960 (1%) / 0 (0%)]
    296923 (88%) have returned a successful result. [22079 (7%) / 274844 (81%) / 0 (0%)]
    27725 (8%) are still in progress. [16394 (5%) / 11331 (3%) / 0 (0%)]

    Of the tasks that have been returned successfully:

    27692 (9%) are pending validation. [2195 (1%) / 25497 (9%) / 0 (0%)]
    269042 (91%) have been successfully validated. [19881 (7%) / 249161 (84%) / 0 (0%)]
    181 (0%) were invalid. [3 (0%) / 178 (0%) / 0 (0%)]
    14 (0%) are inconclusive. [0 (0%) / 14 (0%) / 0 (0%)]
    9) Message boards : Number crunching : Euler's Number Challenge (Message 152396)
    Posted 13 days ago by Profile Michael GutierrezProject donor
    A few hours left in the challenge! Some friendly reminders... :)

    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!
    10) Message boards : Number crunching : Euler's Number Challenge (Message 152386)
    Posted 14 days ago by Profile Michael GutierrezProject donor
    Entering day 3/3:

    Challenge: Euler's Number
    App: 11 (AP27)
    (As of 2021-11-25 05:47:18 UTC)

    246720 tasks have been sent out. [CPU/GPU/anonymous_platform: 37652 (15%) / 209068 (85%) / 0 (0%)]

    Of those tasks that have been sent out:

    3710 (2%) were aborted. [2950 (1%) / 760 (0%) / 0 (0%)]
    4129 (2%) came back with some kind of an error. [108 (0%) / 4021 (2%) / 0 (0%)]
    205897 (83%) have returned a successful result. [14241 (6%) / 191656 (78%) / 0 (0%)]
    32987 (13%) are still in progress. [20353 (8%) / 12634 (5%) / 0 (0%)]

    Of the tasks that have been returned successfully:

    26896 (13%) are pending validation. [2033 (1%) / 24863 (12%) / 0 (0%)]
    178885 (87%) have been successfully validated. [12205 (6%) / 166680 (81%) / 0 (0%)]
    113 (0%) were invalid. [3 (0%) / 110 (0%) / 0 (0%)]
    8 (0%) are inconclusive. [0 (0%) / 8 (0%) / 0 (0%)]


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