• What is this nonsense ?

    From Ramine@21:1/5 to All on Tue Apr 26 13:22:35 2016
    Hello......

    I have come to an important subject..

    Please look at the USL methodology here:

    http://www.perfdynamics.com/Manifesto/USLscalability.html

    Dr. Gunther the author of the USL methodology is using
    nonlinear regression on the performance data measurements
    to predict scalability?

    But i don't understand this nonsense !

    Simply because, in a parallel program, a locked region using
    locks can escape contention at fewer cores and fewer
    threads and can than hit the contention at more cores and more threads..
    so how can you than use nonlinear regression to predict
    scalability ? this is complete nonsense !


    Can you please explain to me why Dr. Gunther the author of USL
    is using nonlinear regression to predict scalability ?



    Thank you,
    Amine Moulay Ramdane.

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