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Crunching tips

Discussion in 'World Community Grid (WCG)' started by RAMMIE, May 28, 2009.

  1. RAMMIE New Member

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    1 A dedicated cruncher doesn't need more than 1 gig of RAM.1 stick is best.The single channel penalty is easy to make up with increased CPU clocks.CPU speed rules in these projects.
    2 Timings and RAM speed don't matter much.Again go for CPU speed.
    3 x64 OS and 64 BOINC client will get more points than 32
    4 Human Proteome Folding creates a lot of problems on a lot of machines.Avoid this project if you see errors in it.

    Feel free to add any tips!
     
  2. mike047 New Member

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    GHZ RULE:rockout:
     
  3. Paulieg

    Paulieg The Mad Moderator Staff Member

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    This is a great thread to sticky...I think I will.
     
  4. Amdguy New Member

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    Does anyone know what operating system will yield the best results?
     
  5. FordGT90Concept

    FordGT90Concept "I go fast!1!11!1!"

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    My server is running 8 x ~100 MiB projects now. I'd say 2 x 1 GiB sticks are ideal. You get the added benefit of dual channel and have room for the OS too.


    I've done 207 results on Human Proteome Folding Phase 2 with zero errors. If you get any errors at all, you pushed the computer too far. That particular project might be harder on machines than the other ones.


    My guess is XP x64 or Server 2003 x64. Vista usually only sees gains in gaming because of DirectX 10 and a loss in pretty much every thing else. Windows 7 might be on par with XP x64/Server 2003 x64.
     
    Amdguy says thanks.
    Crunching for Team TPU
  6. RAMMIE New Member

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    For a i7 with HT enabled or a dual CPU setup 2gigs would be needed.For a dedicated cruncher with a Quad or less 1 gig is more than enough.

    I run server 2008 x64 on most of my machines.
     
  7. mrhuggles

    mrhuggles

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    i see WCG using about 100mb per project at any given time? are you sure you really need more than what you use + maybe 512mb or so?
     
    Last edited: May 30, 2009
  8. 123bob

    123bob Xtreme Refugee

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    Control laptop temps (or your desktop if you're having temp problems) by using the profile parameter "On multiprocessors, use: XXX % of processors".

    I used to run my lappy at 60% to keep it running cool. It ran for over a year 24/7 doing this... This puts a sawtooth looking pattern in taskmgr's performance tab, as the processor is turned on and off.

    Also, one of the common new person questions we get is why the processors are not loaded 100%. The default setting of this can be 60% when you're just starting out...crank it up to 100% is you want max production.

    Shown below is what it looks like on your WCG profile page.
    [​IMG]

    Bob
     
    mjkmike and King Wookie say thanks.
  9. 123bob

    123bob Xtreme Refugee

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    Here's a good one....


    Check to make sure the bios time and date is set correctly on your rig!!


    If you don't, you may not be able to connect to the servers since they use time sensitive certificates for authentication. It will drive you nuts to figure out why you can't get work!! A few here found this out the hard way....:D

    Bob
     
  10. Naekuh

    Naekuh New Member

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    # of cores + endurance rules..

    not GHZ...

    Avoid high end ocing unless you have a large budget for hardware replacements.

    (the story of the tortes vs hare)

    A lot of XS WCG people (me expecially) did a lot of hardware replacements to hold up high overclocking while being loaded. If your not the type that can RMA stuff fast, or its your main machine, down the overclock so she's not tiptoed all the time.

    Oh and when your cruncher does suffer from down time.. (unfortunate event but will happen)

    1. most likely its your RAM
    2. it then falls on the board.
    3. the cpu is usually the last to die, unless your pushing 1.5vcore + on WCG. :p
     
  11. mike047 New Member

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    There is a balance between extreme overclock and durability. The Ghz is what does the work, so more Ghz= more work. the combination of more cores and higher clocks yield more work. Myself and many others have the experience to know. I have had a very durable long running farm using this premise.
     
  12. RAMMIE New Member

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    Fast CPU
    medium-slow RAM
    That's the recipe
     
  13. Naekuh

    Naekuh New Member

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    yeah its true that ghz does matter.

    but XS has histories of enterprise machines outlasting any overclocked machines. :nutkick:

    And most of the enterprise machines are only bsel moded. :rolleyes:
     
  14. RAMMIE New Member

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    Because people want to run their RAM at 1000 4-4-4 and you need volts for that.I did it for a long time.Now I run loose timings and keep it stock speed.My output hasn't declined and I haven't killed any more DDR2.
     
  15. mike047 New Member

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    I know XS and I know who you are, and I was the #12 or #13 XS WCG team member.

    I have made my bones and know what I talk about concerning crunching.

    All my machines are overclocked and ran 24/7 overclocked.

    I always have run my ram at default or less without issue, except for a bad run of Crucial Ballistix many years ago.[I have a whole box of dead Crucial]
     
  16. RAMMIE New Member

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    And most of us cannot afford enterprise machines.Most that run them can't out perform Mike and Mike.
     
  17. mike047 New Member

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    What do we have together 60-70 million Boinc???:rockout:
     
  18. RAMMIE New Member

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    I got 20.You must be kickin' something serious!:rockout:
     
  19. mike047 New Member

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    I think we have about 62m between us....all good science:rockout:
     
  20. Naekuh

    Naekuh New Member

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    Dude... im leaving this thread because i got a very rude PM from someone id care not to disclose.

    Anyhow... its really sad because i crunched with a lot of ya for a while and to be treated like shark meat really hurt.

    I wish your team the best... as for me... i hope the guy reflects on what he just did and not repeats it to anyone else.
     
  21. stanhemi

    stanhemi New Member

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    well i don't know your storie (about the p.m) but if people on tpu wcg treat us like that .......:shadedshu it sad i fold since november 08 and never had problem.but i'm new to wcg tpu.:ohwell:
     
  22. RAMMIE New Member

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    I am the guilty party.
    Didn't think it was rude to suggest that he crunch with such high end CPUs instead of just giving advice to buy high end platforms.Sorry if I ruffled your feathers.
     
  23. Laurijan

    Laurijan

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    Should i limit my crunching to the project that has given me the most points so far? And if yes how do i select the projects to run?
     
  24. [Ion]

    [Ion] WCG Team Assistant

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    My Projects --> Select any you want --> Save
    I'm currently running HFCC and RICE (both of which get pretty good points, HPF2 and HCC didn't give the best PPD, and, at least in the case of HPF2, errored a lot for me so I don't run it anymore)
     
    Laurijan says thanks.
    Crunching for Team TPU
  25. vaiopup New Member

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    Select the projects you BELIEVE IN ;)
     

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