[Openmp-dev] Public Benchmarks?

[Andrey Bokhanko via Openmp-dev]

There are a bit fresher results for clang 3.8 (though no comparison with
gcc):
http://www.phoronix.com/scan.php?page=article&item=llvm-clang-363738&num=3

Yours,
Andrey


On Tue, Aug 23, 2016 at 3:12 PM, Alexey Bataev via Openmp-dev <
openmp-dev at lists.llvm.org> wrote:

> Phoronix results are not quite correct. Seems to me they have some
> problems with compilation flags. Tried to investigate their results a few
> years ago and got completely different numbers.
>
> Best regards,
> Alexey Bataev
>
> 23 авг. 2016 г., в 7:54, Hahnfeld, Jonas via Openmp-dev <
> openmp-dev at lists.llvm.org> написал(а):
>
> There was in article one year ago: http://www.phoronix.com/scan.
> php?page=article&item=clang-svn-openmp&num=2
>
> I never came around to confirm the test results and it may look different
> for 3.9 now…
>
>
>
> Regards,
>
> Jonas
>
>
>
> *From:* Openmp-dev [mailto:openmp-dev-bounces at lists.llvm.org
> <openmp-dev-bounces at lists.llvm.org>] *On Behalf Of *Cownie, James H via
> Openmp-dev
> *Sent:* Tuesday, August 23, 2016 1:48 PM
> *To:* openmp-dev at lists.llvm.org
> *Subject:* [Openmp-dev] Public Benchmarks?
>
>
>
> I just noticed that the LLVM page in Wikipedia (https://en.wikipedia.org/
> wiki/LLVM ) contains the statement
>
>
>
> For run-time performance of the compiled programs, GCC formerly
> outperformed LLVM by 10% on average.[18]
> <https://en.wikipedia.org/wiki/LLVM#cite_note-18>[19]
> <https://en.wikipedia.org/wiki/LLVM#cite_note-19> Newer results indicate
> that LLVM has now caught up with GCC in this area, and is now compiling
> binaries of approximately equal performance, except for programs using
> OpenMP <https://en.wikipedia.org/wiki/OpenMP>.[20]
> <https://en.wikipedia.org/wiki/LLVM#cite_note-20>
>
>
>
> I believe that is wrong (their evidential link is from 2012!), and our
> OpenMP performance is now at least comparable with, if not better than,
> that of GCC, but I don’t have any public benchmarks to prove it.
>
>
>
> So, does anyone have any pointers to public articles that show that, so
> that we can go in and fix the Wikipedia article?
>
> (Phoronix’ latest at http://www.phoronix.com/scan.
> php?page=article&item=gcc-61-clang39&num=1 doesn’t seem to have any
> OpenMP codes in it, so that’s no use).
>
>
>
> Thanks
>
>
>
> -- Jim
>
> James Cownie <james.h.cownie at intel.com>
> SSG/DPD/TCAR (Technical Computing, Analyzers and Runtimes)
>
> Tel: +44 117 9071438
>
>
>
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