150 GFLOP/s measured?

Article: PhysX87: Software Deficiency
By: Anon (no.delete@this.email.com), July 19, 2010 5:15 pm
Room: Moderated Discussions
Richard Cownie (tich@pobox.com) on 7/19/10 wrote:
>Linus Torvalds (torvalds@linux-foundation.org) on 7/19/10 wrote:
>>- the kind of code you talk about is such a small fraction
>>of the code any real CPU runs that it's not really worth
>>even bringing up as an argument.
>That seems a bit extreme. There are significant HPC
>machines that spend a heck of a lot of time doing
>DP matrix-matrix multiplication, or FFT's, that are
>running carefully-optimized hand-coded routines.
>And graphics pipelines are another example, where we've
>shunted the work off onto carefully-optimized routines
>running on (lots of) in-order processors. If you
>want to say those aren't "real CPUs", then it's a bit
>of a circular argument: defining away all the things that
>work well as hand-tuned routines on in-order cores as
>being not "real" enough to count.
>For the bulk of the market - laptops, desktops, database
>and web servers - you're right that OoO cores give the
>best bang (and very much the best bang for the buck).
>But that isn't a universal law - there *are* some
>applications where the computation routines are small
>enough and the data access patterns are predictable enough
>that hand-tuning for in-order cores is a good approach.
>Perhaps the various late and slow Itanium chips
>have given that approach a worse reputation than it

Not mention media codecs, which I would suggest consume more of the world CPU cycles that many other more 'common' codes these days (if only because they dont just idle the cpu most of the time).

Oh, and some parts of gaming codes..

One day I would love to know the global distribution of actual compute cycles ;) would be most interesting. IBM used to measure such things in great detail when mainframes were big, so to say.
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          150 GFLOP/s measured?David Kanter2010/07/08 06:53 PM
            150 GFLOP/s measured?Aaron Spink2010/07/08 08:05 PM
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                          150 GFLOP/s measured?Aaron Spink2010/07/19 07:56 AM
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                                            Confusing and not very useful definition?2010/07/22 09:58 PM
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            You are just quoting SINGLE precision flops? OMG what planet do you live? Vincent Diepeveen2010/07/19 09:26 AM
              The prior poster was talking about SP (NT)David Kanter2010/07/19 10:34 AM
                All FFT's need double precisionVincent Diepeveen2010/07/19 01:02 PM
                  All FFT's need double precisionDavid Kanter2010/07/19 01:09 PM
                    All FFT's need double precisionVincent Diepeveen2010/07/19 03:06 PM
                  All FFT's need double precision - notMichael S2010/07/20 12:16 AM
                    All FFT's need double precision - notUngo2010/07/20 11:04 PM
                      All FFT's need double precision - notMichael S2010/07/21 01:35 PM
                      All FFT's need double precision - notEduardoS2010/07/21 01:52 PM
                        All FFT's need double precision - notAnon2010/07/21 04:23 PM
                          All FFT's need double precision - notRicardo B2010/07/26 06:46 AM
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                        All FFT's need double precision - notVincent Diepeveen2010/07/24 10:39 PM
                          All FFT's need double precision - notslacker2010/07/25 02:27 AM
                            All FFT's need double precision - notRicardo B2010/07/26 06:40 AM
                          All FFT's need double precision - notEduardoS2010/07/25 07:37 AM
                            All FFT's need double precision - notMichael S2010/07/25 09:43 AM
                    All FFT's need double precision - notVincent Diepeveen2010/07/24 10:19 PM
      A bit off baseEduardoS2010/07/08 03:08 PM
        A bit off baseGroo2010/07/08 05:11 PM
          A bit off basejohn mann2010/07/08 05:58 PM
            All right...let's cool it...David Kanter2010/07/08 06:54 PM
    A bit off baseVincent Diepeveen2010/07/19 02:36 PM
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