Focusing on World Community Grid

Discussion in 'Distributed Computing' started by ZipSpeed, Jan 13, 2012.

  1. ZipSpeed

    ZipSpeed Golden Member

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    I currently have my GTX 480 @ 775 MHz dedicated for HCC. Crunch times are about 3 mins give or take 5 seconds.
     
  2. StitchExperimen

    StitchExperimen Senior member

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    Stitch thinks about his new Citi Mastercard and a pair of Radeon HD 7850 Graphics cards.
    I wonder what times I could get? any guesses?
     
  3. blckgrffn

    blckgrffn Diamond Member

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    It would probably be good...

    But for DC, I think (?) the consensus is that you should shoot for a 7950/7970 instead. Their dual precision performance is much, much greater than any SKUs below that.

    It may not make a difference for this particular project, but some require DP and it could make a big difference. Just my $.02.
     
  4. ZipSpeed

    ZipSpeed Golden Member

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    This guy on the WCG forums got this runtime with his 7850:

    http://www.worldcommunitygrid.org/forums/wcg/viewthread_thread,34020_offset,10#396284
     
  5. ZipSpeed

    ZipSpeed Golden Member

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    Added my 5850 into HCC GPU. At 900 MHz core, seeing times ~00:03:45.
     
  6. StitchExperimen

    StitchExperimen Senior member

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    I was told that the 7950 and 7970 were to hot to run 24/7 in the summer.
    Any opinions?
    And price wise a 7970 costs so much that buying 2 to run in crossfire would take the fun out of it. Just musing.
     
  7. StitchExperimen

    StitchExperimen Senior member

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    What are your suggestions for motherboards to run in Quad-fire mode? and processor to keep the GPUs happy? What speed do they need and number of cores?
    I need a space between the 2 GPUs for air flow
    And what about a case maybe one that has holes/vents above the cards.
    And who to purchase the GPUs from?
    Also what power supply wattage? I guess get a 80 plus gold rated (since it runs 24/7 that will save at least $6 a year on electricity @400 watt power supply over a 80 plus.)
    Stitch
    I ment quad-fire mode not crossfire.
     
    #232 StitchExperimen, Oct 16, 2012
    Last edited: Oct 16, 2012
  8. ZipSpeed

    ZipSpeed Golden Member

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    What's your budget? Intel or AMD? The Asus ROG motherboards are nice and some of them do away with PCI slots and are populated completely with PCI-E slots. As for cases, get a full-size tower. I have a Corsair 700D and while it's ok, the airflow could be a bit better. I would look at something like the Cooler Master HAF 932 or HAF X. Power supply wattage is dependent on what you're going to have inside the case. My personal favorites are the Corsair AX or Seasonic X lines.
     
  9. StitchExperimen

    StitchExperimen Senior member

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    I have questions about what speed of processor a GPU needs to keep it happy in Boinc. I presume 4 cores or threads. Also Intel is faster in clock speeds, less heat, faster motherboards with more incorporated (other than that I use to prefer buying AMD). But as such my mobile processor in my laptop a first gen i5 is still faster as far I know than any AMD as I understand from reading on Toms hardware AMD compares to a i3 in processor ranking.

    Also I have a question if I got a Intel processor with on-board graphics and didn't use the on-board graphics would the chip run cooler to be able to overclock more?
    Stitch
     
  10. ZipSpeed

    ZipSpeed Golden Member

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    For WCG, each GPU will take up an entire CPU thread. Definitely grab a GPU that has hyperthreading. As far as I know, there is no way to shut off the integrated graphics completely even if you disable it in the BIOS. I wouldn't worry about it. Get a nice cooler on it and you'll be good to go.
     
  11. StitchExperimen

    StitchExperimen Senior member

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    #236 StitchExperimen, Oct 20, 2012
    Last edited: Oct 21, 2012
  12. ZipSpeed

    ZipSpeed Golden Member

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  13. ZipSpeed

    ZipSpeed Golden Member

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    Haven't had a stats update for a bit so here it is. GPU crunching has definitely made an impact. It certainly has for me. A team like EVGA where they have a history of using GPUs for crunching is on the threat list. On a positive note, we might even be able to break into the mid-70s by year's end!

    Current producers based on yesterday's data:

    [​IMG]

    Opportunities:

    [​IMG]

    Threats:

    [​IMG]
     
  14. petrusbroder

    petrusbroder Lifer

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    Thanks for the stats ... :)
     
  15. StitchExperimen

    StitchExperimen Senior member

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    Thanks for the stats... I always like to see my name/stats.

    If your interested in motherboards for QuadFire or 4 way SLI read on.

    I found this... Gigabyte Z77-G1-Sniper 3 Intel Z77 $268 @ Amazon This has 4 PCI-E slots. This board is a E-ATX 13 inch instead of 9.6. Everything else I looked at was easily $100 more. There was one motherboard way cheaper a EVGA Z77 FTW Intel Z77 @ 199.99 but the BIOS had lots of complaints... Amazon rating was 2 stars... horrible for overclocking.

    I have a question... in the Intel i7 series are any of the 4 core 8 thread cpu's overclockable? They run in price from ~280-320 dollars.

    Stitch
     
  16. ZipSpeed

    ZipSpeed Golden Member

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    What you want are the CPUs with a 'K' or 'X' suffix. 2600K, 2700K, 3770K, 3930K, 3960X. These are easy to overclock via an unlocked multiplier. Non-K CPUs can be overclocked up to 4 bins (100 MHz per bin) above their max turbo speed (I think... someone correct me if I'm wrong).
     
  17. VirtualLarry

    VirtualLarry Lifer

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    Socket 2011 CPUs can also be overclocked via their baseclock settings, which is something that is not available with socket 1155.
     
  18. ZipSpeed

    ZipSpeed Golden Member

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    Good to know, thanks! Is it similar to overclocking on X58?
     
  19. blckgrffn

    blckgrffn Diamond Member

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    I think it is less granular, you get to choose from a number of bclk values - as I understand it.

    Good news , sorta - you only need the "use my GPU's for HCC to kick into gear, you don't need to select it as an active project for your CPUs. All of a sudden my ppd shot up :)
     
  20. ZipSpeed

    ZipSpeed Golden Member

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    Thanks for tidbit! I'm currently retiring and rebuilding some crunchers but good to know that I can run HCC GPU exclusively once I bring my GPU cruncher back online.
     
  21. brownstone

    brownstone Golden Member

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    A little slow to the party, but is this HCC a specific project or anything BOINC related? I'm getting ready to get going on DC again now that things are cooling down outside.

    Also, although I know that it has probably been answered at least 12.7 times, what projects are recommended for AMD 79** cards?

    Thanks!
     
  22. ZipSpeed

    ZipSpeed Golden Member

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    Help Conquer Cancer is a project that is part of World Community Grid. You're in luck, HCC performs quite well with 7900 series cards. :) Milkyway@home is another I can think of. I'm sure there's more.
     
  23. brownstone

    brownstone Golden Member

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    Thanks Zip!
     
  24. mmstick

    mmstick Junior Member

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    I heard only NVIDIA cards consume a full core. I use a FX-8120, for the most part the cores are only loaded 30% on all cores with 9 work units running simultaneously. What matters more is your system memory speed, an overclock of my 1600Mhz RAM to 1800Mhz increased throughput by a huge amount, while also upping the GPU load of my 7950 to 95% at all times.

    My 7950 is OCd to 1100Mhz core, and crunching at a nice speed of about 22 seconds per work unit (18 seconds of GPU kernel time, the other 4 are from memory transfer and CPU time). Who said AMD FX is about the same as an i3?

    It also seems that because people with graphics cards like mine are completing work units too fast and running out of cache, WCG techs are going to double the amount of work in each work unit, although I'd prefer at least 100 work units packed into one for my 7950.
     
    #249 mmstick, Nov 6, 2012
    Last edited: Nov 6, 2012
  25. ZipSpeed

    ZipSpeed Golden Member

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    Yeah, I had to manually hit update a few times with my 7950 rig to get more work. Good to know about the doubling amount of work.
     
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