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Thread: Major problems with getting Folding@Home to work!

  1. #41
    Auto Tech joecool169's Avatar
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    I was just reading from here.

    I guess it does say points are better with two.
    Joe

  2. #42
    Auto Tech joecool169's Avatar
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    Ahhh, and this one is the one I remember the most.http://fahwiki.net/index.php/FAH_&_SMP
    Joe

  3. #43
    Writing is life. holokaustos's Avatar
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    Quote Originally Posted by Debbie View Post
    Welcome to the Fold holokaustos!!
    Thank you very much! Now that I've got it running, I really am beginning to like the fact that I'm making a positive contribution to something.

    (BTW - I love the new avatar! Looks much better than the Nerdy Dog! Then again, I've always been partial to Snoopy and the Gang... )

    Quote Originally Posted by joecool169 View Post
    I was just reading from here.

    I guess it does say points are better with two.
    Quote Originally Posted by joecool169 View Post
    Ahhh, and this one is the one I remember the most.http://fahwiki.net/index.php/FAH_&_SMP
    Thanks for the links. I'll need to check them out this weekend, when I have more time. I have to admit, though, what I had read here seemed to be stating that a HT setup would be better than just one CPU, so I'm glad to see that my initial impression was correct.
    Last edited by holokaustos; 01-10-07 at 12:27 PM.
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  4. #44
    Writing is life. holokaustos's Avatar
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    Well, I was able to look at the thread from fahwiki.net. Guess I was wrong, because there were some very interesting points:

    "In simple terms Hyper-Threading allows unused instruction units of the CPU to be utilized in parallel. Whilst this can be very effective for certain application classes, for Folding@home it is not especially helpful..."

    "However, if you try and run two instances of Folding@home on the same Hyper-Threaded CPU, they will both be competing for the same instruction units. This essentially means that each Folding@home instance shares its access to those instruction units. Overall a small performance gain is achieved due to the few calculations that can be run on the "spare" instruction units. However the end result is that the two WUs you are running complete in just under twice the length of time as a single WU would because of the afore mentioned instruction unit sharing.

    The recommended procedure is to run a single instance of the Folding@home client per physical CPU, because this will finish a Work Unit (WU) in the shortest time. This is more valuable to the science of Folding@home, since the data from processed WUs is used to generate new ones.
    [Emphasis Added]

    If you have an HT capable CPU, the best way of running Folding@home is to install 1 instance of Folding@home, and leave HT enabled. This way you will gain a slight performance advantage over disabling HT, since Folding@home will be affected to a lesser degree by other programs running."

    I guess they're basically saying to NOT use two instances of F@H when you have HT enabled. Kind of makes sense, I suppose, but, still, surprising, considering all of the kudos I read here recommending it.

    This caught my eye, too, especially considering that it's the exact same thing that's showing on my PC:

    "Note: Windows task manager will show the CPU usage whilst running 1 instance of Folding@home on a HT enabled CPU to be only 50%. This is wrong. The single instance of Folding@home is working at full capacity on the portions of the CPU that it utilizes."

    Very interesting. Anyways, thanks for the links. I'll see if I can hit the other one later today...
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  5. #45
    Quote Originally Posted by holokaustos View Post
    Thank you very much! Now that I've got it running, I really am beginning to like the fact that I'm making a positive contribution to something.

    (BTW - I love the new avatar! Looks much better than the Nerdy Dog! Then again, I've always been partial to Snoopy and the Gang... )
    Yeah, I hated those glasses!

  6. #46
    Writing is life. holokaustos's Avatar
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    Quote Originally Posted by Debbie View Post
    Yeah, I hated those glasses!
    These glasses are much more acceptable! Marcie rocks!

    Maybe I need to read a bit more thoroughly on the forum, but real quick: how do I change the variable in F@H that designates how much of the CPU it uses?
    Quote Originally Posted by YARDofSTUF View Post
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  7. #47
    Second Most EVIL YARDofSTUF's Avatar
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    Quote Originally Posted by holokaustos View Post
    These glasses are much more acceptable! Marcie rocks!

    Maybe I need to read a bit more thoroughly on the forum, but real quick: how do I change the variable in F@H that designates how much of the CPU it uses?
    close FAH and create a shortcut for FAH504console and in properties add "-config" at the end of the target field. This lets you change all the config settings and will then continue folding.

  8. #48
    Writing is life. holokaustos's Avatar
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    ^Okay, thanks. I'll try it out the next time I start up F@H...
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  9. #49
    Writing is life. holokaustos's Avatar
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    Finally, some results!



    Good to see that I'm showing up on the charts...
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  10. #50
    Writing is life. holokaustos's Avatar
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    And I get a certificate, too!



    Just one question: where's my cookie?
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  11. #51
    resident plumber Mark's Avatar
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    congrats, nice work there, now just change the name to the_snake and all is good


  12. #52
    Writing is life. holokaustos's Avatar
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    Quote Originally Posted by Mark View Post
    congrats, nice work there, now just change the name to the_snake and all is good

    LOL! Ulterior motive, I take it? Nice try!
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  13. #53
    R.I.P. MissTynker2's Avatar
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    Good job! Welcome aboard the team. I have run both...the singles, and the hyperthreaders. The difference I have found is amazingly small. The hyperthreaders do take a bit longer per unit, and I have checked the same unit working on a single processor at the same time. The difference is not enough to even be concerned with, and the ht machines will run 2 units. I think its a matter of what you are personally comfortable with.
    Mystical Folding Minx

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