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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>There was in article one year ago: <a href="http://www.phoronix.com/scan.php?page=article&item=clang-svn-openmp&num=2">http://www.phoronix.com/scan.php?page=article&item=clang-svn-openmp&num=2</a><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>I never came around to confirm the test results and it may look different for 3.9 now…<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Jonas<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=DE style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=DE style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Openmp-dev [mailto:openmp-dev-bounces@lists.llvm.org] <b>On Behalf Of </b>Cownie, James H via Openmp-dev<br><b>Sent:</b> Tuesday, August 23, 2016 1:48 PM<br><b>To:</b> openmp-dev@lists.llvm.org<br><b>Subject:</b> [Openmp-dev] Public Benchmarks?<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Verdana","sans-serif"'>I just noticed that the LLVM page in Wikipedia (<a href="https://en.wikipedia.org/wiki/LLVM">https://en.wikipedia.org/wiki/LLVM</a> ) contains the statement <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:36.0pt'><span lang=EN-GB style='font-size:12.0pt;font-family:"Arial","sans-serif";color:#252525;background:white'>For run-time performance of the compiled programs, GCC formerly outperformed LLVM by 10% on average.</span><sup id="cite_ref-18"><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#252525;background:white'><a href="https://en.wikipedia.org/wiki/LLVM#cite_note-18"><span style='color:#0B0080;text-decoration:none'>[18]</span></a><a href="https://en.wikipedia.org/wiki/LLVM#cite_note-19"><span style='color:#0B0080;text-decoration:none'>[19]</span></a></span></sup><span class=apple-converted-space><span lang=EN-GB style='font-size:12.0pt;font-family:"Arial","sans-serif";color:#252525;background:white'> </span></span><span lang=EN-GB style='font-size:12.0pt;font-family:"Arial","sans-serif";color:#252525;background:white'>Newer results indicate that LLVM has now caught up with GCC in this area, and is now compiling binaries of approximately equal performance, <span style='background:yellow;mso-highlight:yellow'>except for programs using<span class=apple-converted-space> </span></span></span><span lang=EN-GB style='font-size:14.0pt;background:yellow;mso-highlight:yellow'><a href="https://en.wikipedia.org/wiki/OpenMP" title=OpenMP><span style='font-size:12.0pt;font-family:"Arial","sans-serif";color:#0B0080;text-decoration:none'>OpenMP</span></a></span><span lang=EN-GB style='font-size:12.0pt;font-family:"Arial","sans-serif";color:#252525;background:yellow;mso-highlight:yellow'>.</span><sup id="cite_ref-20"><span lang=EN-GB style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#252525;background:yellow;mso-highlight:yellow'><a href="https://en.wikipedia.org/wiki/LLVM#cite_note-20"><span style='color:#0B0080;text-decoration:none'>[20]</span></a></span></sup><span lang=EN-GB style='font-size:10.0pt;font-family:"Verdana","sans-serif"'><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Verdana","sans-serif";mso-fareast-language:EN-GB'>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. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Verdana","sans-serif";mso-fareast-language:EN-GB'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Verdana","sans-serif";mso-fareast-language:EN-GB'>So, does anyone have any pointers to public articles that show that, so that we can go in and fix the Wikipedia article?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Verdana","sans-serif";mso-fareast-language:EN-GB'>(Phoronix’ latest at <a href="http://www.phoronix.com/scan.php?page=article&item=gcc-61-clang39&num=1">http://www.phoronix.com/scan.php?page=article&item=gcc-61-clang39&num=1</a> doesn’t seem to have any OpenMP codes in it, so that’s no use).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Verdana","sans-serif";mso-fareast-language:EN-GB'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Verdana","sans-serif";mso-fareast-language:EN-GB'>Thanks<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Verdana","sans-serif";mso-fareast-language:EN-GB'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Verdana","sans-serif";mso-fareast-language:EN-GB'>-- Jim<br><br>James Cownie <<a href="mailto:james.h.cownie@intel.com">james.h.cownie@intel.com</a>><br>SSG/DPD/TCAR (Technical Computing, Analyzers and Runtimes)<o:p></o:p></span></p><p 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