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Thread: f@h dual core questions

  1. #1
    resident Humboldt's Avatar
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    f@h dual core questions

    I know you can set up dual core processors to run 2 different instances of f@h.

    Just upgraded from a single core 1.8 GHz to a dual 3.0 GHz.

    What's the difference between setting up 2 instances of the regular client, or running the SMP client?

    Thanks

  2. #2
    resident Humboldt's Avatar
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    Stanford does say about the SMP client :
    We strongly suggest people run this client on 4-core boxes. While it will run on 2-core boxes, we have noticed some potential problems (we are looking into these issues now).
    Thanks

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    Second Most EVIL YARDofSTUF's Avatar
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    I haven't run any F@H stuff for a while but the SMP client has always been problematic on dual core/Hyperthreaded CPUs.

    EDIT: Not sure if you have a Dual core or a Single core with Hyperthreading, but if its the Single core then except the hyperthreaded core to be much slower at folding than your real core.

    If you have a dual core CPU w/ hyperthreading you should have 4 separate boxes in the task manager performance section if I remember right.

  4. #4
    resident Humboldt's Avatar
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    Quote Originally Posted by YARDofSTUF View Post
    I haven't run any F@H stuff for a while but the SMP client has always been problematic on dual core/Hyperthreaded CPUs.

    EDIT: Not sure if you have a Dual core or a Single core with Hyperthreading, but if its the Single core then except the hyperthreaded core to be much slower at folding than your real core.

    If you have a dual core CPU w/ hyperthreading you should have 4 separate boxes in the task manager performance section if I remember right.
    How can I tell, sort of pulling the fan and heat sink off to look at the processor?

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    Second Most EVIL YARDofSTUF's Avatar
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    http://www.piriform.com/speccy

    What does speccy say for your "Cores", "Threads", and the "Specification" info?

    (Yay 2 speccy posts in 2 days!)

  6. #6
    resident Humboldt's Avatar
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    Quote Originally Posted by YARDofSTUF View Post
    http://www.piriform.com/speccy

    What does speccy say for your "Cores", "Threads", and the "Specification" info?

    (Yay 2 speccy posts in 2 days!)
    Huh, so I was wrong, it's a single core w/ HT.

    Intel(R) Pentium(R) 4 CPU 3.00GHz
    Prescott

    Speccy look good, thanks for the tip...easier tho read than Belarc

  7. #7
    resident Humboldt's Avatar
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    Lots of cool features, although it does read one of my internal hdds running at over 100C.

  8. #8
    Second Most EVIL YARDofSTUF's Avatar
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    Hah, 100C has to be wrong. Maybe try flipping to F and back to C.

    So a 3ghz w/HT, you should definitely run the single core client, you can run 2 instances. The 2nd one will be much slower though.

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