<div dir="ltr">oh, indeed the top bin Xeon systems are fast and damn expensive. Even when we purchased these AMD systems they were a LOT cheaper than any Intel system that could come close in specfp rate performance - let alone after 4 years of heavy use.<div><br></div><div>One issue is that the AMD systems are far more numa, thus requiring tighter programming.</div><div><br></div><div>I was trying to justify tossing the AMD systems and hopefully replacing them with a smaller number of broadwell based systems. I guess I was really surprised to see that a reasonable dual socket (what we would likely purchase) broadwell system probably wasn't any faster. Of course, per socket, they are about 2x thus saving us a lot of space+power, but not the ~10x I was hoping to see. It has been 4 years...</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Aug 16, 2016 at 11:49 PM, Elken, Tom <span dir="ltr"><<a href="mailto:tom.elken@intel.com" target="_blank">tom.elken@intel.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">You didn’t say on what basis you chose those two results, comparing a 4-socket, 64-core 2012 result to a 2-socket, 20-core 2016 result.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Here’s a 4-socket 2016 result that looks like > 2x progress since the 2012 result:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><a href="https://www.spec.org/cpu2006/results/res2016q3/cpu2006-20160725-43005.html" target="_blank">https://www.spec.org/cpu2006/<wbr>results/res2016q3/cpu2006-<wbr>20160725-43005.html</a>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">This _<i>would</i>_ be an expensive system.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">There are a lot of 2-socket results that are a ~50% improvement over the 4-socket 2012 base result you pointed to, e.g.:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><a href="https://www.spec.org/cpu2006/results/res2016q3/cpu2006-20160705-42720.html" target="_blank">https://www.spec.org/cpu2006/<wbr>results/res2016q3/cpu2006-<wbr>20160705-42720.html</a>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">But I’m glad you have thousands of Phi’s too.<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">-Tom<u></u><u></u></span></p>
<p class="MsoNormal"><a name="m_2880792136889264196__MailEndCompose"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></a></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Beowulf [mailto:<a href="mailto:beowulf-bounces@beowulf.org" target="_blank">beowulf-bounces@<wbr>beowulf.org</a>]
<b>On Behalf Of </b>Stu Midgley<br>
<b>Sent:</b> Tuesday, August 16, 2016 1:36 AM<br>
<b>To:</b> Beowulf List<br>
<b>Subject:</b> [Beowulf] bring back 2012?<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt"><a href="https://www.spec.org/cpu2006/results/res2016q2/cpu2006-20160308-39354.html" target="_blank">https://www.spec.org/cpu2006/<wbr>results/res2016q2/cpu2006-<wbr>20160308-39354.html</a><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt"><a href="https://www.spec.org/cpu2006/results/res2012q4/cpu2006-20121108-25077.html" target="_blank">https://www.spec.org/cpu2006/<wbr>results/res2012q4/cpu2006-<wbr>20121108-25077.html</a><u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt"><u></u> <u></u></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt">Its like no progress has been made. So glad that we have thousands of Phi's...<u></u><u></u></span></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">-- <u></u><u></u></p>
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<p class="MsoNormal">Dr Stuart Midgley<br>
<a href="mailto:sdm900@sdm900.com" target="_blank">sdm900@sdm900.com</a><u></u><u></u></p>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">Dr Stuart Midgley<br><a href="mailto:sdm900@sdm900.com" target="_blank">sdm900@sdm900.com</a></div>
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