Oh, and use the Adaptive computing HPL calculator to get your input file. Thanks Adaptive guys!
On 22 February 2018 at 16:44, Michael Di Domenico <mdidomeni...@gmail.com> wrote: > i can't speak to AMD, but using HPL 2.1 on Intel using the Intel > compiler and the Intel MKL, i can hit 90% without issue. no major > tuning either > > if you're at 33% i would be suspect of your math library > > On Thu, Feb 22, 2018 at 9:37 AM, Prentice Bisbal <pbis...@pppl.gov> wrote: > > Beowulfers, > > > > In your experience, how close does actual performance of your processors > > match up to their theoretical performance? I'm investigating a > performances > > issue on some of my nodes. These are older systems using AMD Opteron 6274 > > processors. I found literature from AMD stating the theoretical > performance > > of these processors is 282 GFLOPS, and my LINPACK performance isn't > coming > > close to that (I get approximately ~33% of that). The number I often > hear > > mentioned is actual performance should be ~85%. of theoretical > performance > > is that a realistic number your experience? > > > > I don't want this to be a discussion of what could be wrong at this > point, > > we will get to that in future posts, I assure you! > > > > -- > > Prentice > > > > _______________________________________________ > > Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing > > To change your subscription (digest mode or unsubscribe) visit > > http://www.beowulf.org/mailman/listinfo/beowulf > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf >
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