PrimeGrid Races 2017

Discussion in 'Distributed Computing' started by Ken g6, Dec 29, 2016.

  1. StefanR5R

    StefanR5R Senior member

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    OK, 2133 c15 and 2400 c17 is virtually the same latency, and not much bandwidth difference. I may have a penalty due to registered DIMMs, if you have unregistered DIMMs.

    OTOH, it's probably just WU variability.
    16,400 points / 3h30m = 112,000 PPD
    12,100 points / 2h50m = 102,000 PPD
     
  2. TennesseeTony

    TennesseeTony Elite Member

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    Go try it on one of your OC'd i7's. ;)
     
  3. StefanR5R

    StefanR5R Senior member

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    Fresh from my box with -t 7 (two workers per CPU):
    16,500 points / 6h20m = 63,000 PPD ( x 2 = 126,000 PPD per CPU)

    I guess I switch the -t 14 box back to -t 7 for a while, until /edit/ half a day before the end of the race.
     
    #153 StefanR5R, Apr 18, 2017
    Last edited: Apr 18, 2017
  4. Markfw

    Markfw CPU Moderator VC&G Moderator Elite Member
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    My current unit is going to take 4 1/2 hours ATM.

    No registered dimms or ECC
     
  5. crashtech

    crashtech Diamond Member

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    I'm seeing some very contradictory results; the machine I thought had a problem is my top producer according to primegrid.com. The only explanation is that there is significant variability between different PSP WUs.
     
  6. TennesseeTony

    TennesseeTony Elite Member

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    Finally got off my butt and turned off HT and set the config to run on all 14 cores, and it looks like the few tasks that have completed for me were in the 4.25 to 4.5 hour range.

    I can't find any 16,200sec tasks though, in either pending or valid. It's been 45minutes.......shouldn't they show nearly instantly?
     
  7. Markfw

    Markfw CPU Moderator VC&G Moderator Elite Member
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    Well, I am the new guy, but it looks to me like all you see is the one "super task" thats hours long At least thats all I see.
     
  8. Ken g6

    Ken g6 Programming Moderator, Elite Member
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    Timing results with this app_config file can be weird. If you started a task without the config file it seems to show the full CPU runtime as elapsed time. Tasks started after changing the config file should show up right, I think.
     
  9. StefanR5R

    StefanR5R Senior member

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    I have been mislead too all the time since I began testing PSP-LLR before the race, and well into the race. One cannot go by number of completed tasks, because tasks are variable. One cannot go by reported Run Time, because the run times listed at primegrid's web site are random garbage if -t > 1.

    I think the only somewhat reliable measures are:
    "pseudo run time" ~= "reported CPU time" / "thread count of the worker"
    "yield of a WU" = "points of the WU once validated" / "pseudo run time"​

    One cannot go by the RAC of each machine either, because one machine may have much more luck than the other in getting its pending WUs validated sooner than later. Validation is instantly if you are the wingman, or in weeks if wingman after wingman aborts or errors out or suspends.

    They show up near instantly. But they show up with totally made-up Run Time. (Occasionally, they show up with correct run time.)

    You may be able to identify WUs by the date & time when their completion was reported.

    (edit)
    After app_config was changed, tasks show up correct in BOINC manager's UI (a) if they were downloaded after the change, or/and (b) if BOINC was restarted after the change.

    They will show up correctly at primegrid's web site, except for mostly incorrect run time. And this is entirely independent of when the change to app_config was made, i.e., even if app_config was not changed during the entire runtime of both the boinc client and the task.
     
    #159 StefanR5R, Apr 19, 2017
    Last edited: Apr 19, 2017
  10. Ken g6

    Ken g6 Programming Moderator, Elite Member
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    Day 12.05 stats:

    Rank___Credits____Username
    9______6247716____xii5ku
    53_____1293886___10esseeTony
    157____424750_____Ken_g6
    249____210771_____Orange Kid
    270____177364_____zzuupp
    304____127307_____SlangNRox
    320____114337_____markfw
    352____94000______GLeeM
    392____67401______crashtech

    Rank__Credits____Team
    4_____31845633___Sicituradastra.
    5_____14563201___Crunching@EVGA
    6_____11575300___BOINC@Poland
    7_____8757534____TeAm AnandTech
    8_____7583742____Team 2ch
    9_____7455260____BOINC@MIXI
    10____6978907____Rechenkraft.net

    Still looking like a good 7th place finish.
     
  11. crashtech

    crashtech Diamond Member

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    Do you guys even need me now? I think I am too little too late. Maybe I'll leave my top two performers in, some of the rest aren't doing well at PrimeGrid at all.
     
  12. StefanR5R

    StefanR5R Senior member

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    @crashtech, in a race, nothing is too little, too late, right? Well, PrimeGrid LLR races are a bit different though. I had an Ivy Bridge-E in it except for the duration of the Formula Boinc sprint. I have taken this IVB-E out of the PrimeGrid challenge now because the heat/noise/stability issues were too severe, considering its comparably poor yield in PSP-LLR.

    So I'd personally say, any core which isn't Haswell or later (if Intel; in case of AMD: which isn't Ryzen), and/or isn't top-notch cooled (if Intel), and/or is desirable to have in another project that is important to one personally (be it in a CPU project, or as a GPU feeder), can surely be excused.

    It also doesn't feel like MOABs are waiting to be dropped on us in this race.

    And lastly, the next two races (Formula, Pentathlon) are right around the corner.
     
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  13. crashtech

    crashtech Diamond Member

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    I got the better cooler on the 4590 last night, so it's very happy with all four cores doing PrimeGrid. And one of the Westmere boxen that has no GPU seems to be doing satisfactorily, believe it or not. Seems turning off HT and putting all twelve cores to work on one instance does well enough, albeit rather inefficiently. Those two will be my representation. I thought the Skylake would be good, but it's apparently massively crippled by the dead memory channel.
     
  14. StefanR5R

    StefanR5R Senior member

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    @Ken g6, thanks for the stats.

    [​IMG]

    I still haven't added BOINC@Poland to the graphs. They are holding their 950 k PPD.

    [​IMG]
    [​IMG]
    [​IMG]
     
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  15. TennesseeTony

    TennesseeTony Elite Member

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    Thanks for the stats, Ken, and graphs, Stefan. After the last FB Sprint, I had dropped to 136th place. Not too bad of a comeback, but moving up from here is getting slower and slower. Hoping for a top 50. ;)
     
  16. StefanR5R

    StefanR5R Senior member

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    If the dozen guys before you with ~2 M points currently were at it constantly during these 12 days, that'd be 170 k PPD, against your current 420 k (250 k more per day). That should be a top 40, right? (An effective top 10 in my eyes though, with what you did at Formula.)
     
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  17. StefanR5R

    StefanR5R Senior member

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  18. TennesseeTony

    TennesseeTony Elite Member

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    Certainly good to know why after changing to 14 non-HT cores, that my task times were getting longer compared to the first few that finished in 4.5 hours. Here is a 23k point task, E5-2683v3, 14 core MT sample from WUSS. It shows 8 hours run time, and I believe that to be accurate:

    [​IMG]
     
  19. Ken g6

    Ken g6 Programming Moderator, Elite Member
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    Day 13.08 stats:

    Rank___Credits____Username
    9______6882296____xii5ku
    48_____1689291___10esseeTony
    152____487726_____Ken_g6
    233____243797_____Orange Kid
    242____229338_____markfw
    280____181844_____crashtech
    281____177364_____zzuupp
    285____176162_____SlangNRox
    286____175967_____GLeeM

    Rank__Credits____Team
    4_____34408983___Sicituradastra.
    5_____16014450___Crunching@EVGA
    6_____12393056___BOINC@Poland
    7_____10243788___TeAm AnandTech
    8_____8250710____Team 2ch
    9_____8081591____BOINC@MIXI
    10____7661377____Rechenkraft.net

    I'm not sure if we can catch Poland, but no one's catching us. :)
     
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  20. StefanR5R

    StefanR5R Senior member

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    [​IMG]

    [​IMG]
    [​IMG]
    [​IMG]

    Poland's PPD are down to 0.79 M. If it stays there the next two days, we would need 0.79 + 2.15 / 2 = 1.87 M PPD to catch them. Don't we?
     
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  21. crashtech

    crashtech Diamond Member

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    At least we'll have them eyeing their rear-view mirror, so to speak!
     
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  22. Ken g6

    Ken g6 Programming Moderator, Elite Member
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    Day 14.06 stats:

    Rank___Credits____Username
    7______7539288____xii5ku
    43_____2093276___10esseeTony
    156____511017_____Ken_g6
    201____332122_____markfw
    223____291804_____Orange Kid
    233____263611_____crashtech
    269____208926_____GLeeM
    281____193190_____zzuupp
    301____176162_____SlangNRox

    Rank__Credits____Team
    4_____36610819___Sicituradastra.
    5_____17346324___Crunching@EVGA
    6_____13391860___BOINC@Poland
    7_____11609400___TeAm AnandTech
    8_____8883819____Team 2ch
    9_____8741972____BOINC@MIXI
    10____8372086____Rechenkraft.net

    Looks like we won't catch Poland:pensive:, but Mark won't catch me either. ;)

    Some of you haven't been in many PrimeGrid races, so the "usual end-of-race announcment" may be new to you:

     
  23. Orange Kid

    Orange Kid Elite Member

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    Thanks for the updates. :cool:
    Looks like I'll only get two more done before the end :(
     
  24. StefanR5R

    StefanR5R Senior member

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    I already got comfortable at individuals' rank 9. But suddenly I am finding me in a tie with Poland and ad astra. :fearscream:
    They and I will probably continue to take turns at ranks 7-9 until the last minute. :sweat:

    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
     
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  25. Markfw

    Markfw CPU Moderator VC&G Moderator Elite Member
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    If I had time to reconfigure the other 5 CPU boxes, I could have made a bigger dent. Thats 2 boxes, and 22 cores, thats 332, 000 in 2 days ! (or was it 3 for me)