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    SubjectRe: threading question
    Hi!

    > I am a summer student implementing a multi-threaded version of a very
    > popular bioinformatics tool. So far it compiles and runs without problems
    > (as far as I can tell ;) on Linux 2.2.x, Sun Solaris, SGI IRIX and Compaq
    > OSF/1 running on Alpha. I have ran a lot of timing tests compared to the
    > sequential version of the tool on all of these machines (most of them are
    > dual-CPU, although I am also running tests on 12-CPU Solaris and 108 CPU
    > SGI IRIX). On dual-CPU machines the speedups are as follows: my version
    > is 1.88 faster than the sequential one on IRIX, 1.81 times on Solaris,
    > 1.8 times on OSF/1, 1.43 times on Linux 2.2.x and 1.52 times on Linux 2.4
    > kernel. Why are the numbers on Linux machines so much lower? It is
    > the

    But this is all different hw, no?

    So dual cpu SPARC is more efficient than dual cpu i686. Maybe SPARCs
    have faster RAM and slower cpus...
    Pavel
    --
    I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care."
    Panos Katsaloulis describing me w.r.t. patents at discuss@linmodems.org
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