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    wprime awkward results

    Discussion in 'HP' started by umar, Mar 26, 2008.

  1. umar

    umar Notebook Evangelist

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    i hava HDX9270ee, 2.40ghz processor, 8800m GTS, 500gb hard disk, 4GB ram.

    the thing is that using 1.60 version of wprime calculating pi to 32m i get 64 seconds whereas in 1.55 version i get around 32 second. WHY? i have kept the threads as 2 in both so why the difference?
     
    umar, Mar 26, 2008
    #1
  2. Jalf

    Jalf Comrade Santa

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    Obvious answer:
    Because something in the program has changed between version 1.6 and 1.55.

    Because measuring performance accurately is *extremely* difficult, and the slightest changes to the code can easily make a major difference to the performance of the program.
     
    Jalf, Mar 26, 2008
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  3. umar

    umar Notebook Evangelist

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    but it shouldn't be 64s in any case right? a 2.4ghz core 2 duo processor?
     
    umar, Mar 26, 2008
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  4. Valleybacker

    Valleybacker Notebook Consultant

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    i am 64 seconds too with a t7500. Have no clue what the heck is wrong with wprime.
     
    Valleybacker, Mar 26, 2008
    #4