<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span>Dear Prof. Marks</span></div><div><span>Thank you for your advice. for optimize system does it matter which operating system we use or not? for example Debian is better or Ubuntu?</span></div><div><span>Best Regards</span></div><div><span>Ali</span></div><div><br></div> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <font face="Arial" size="2"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Laurence Marks <L-marks@northwestern.edu><br> <b><span style="font-weight: bold;">To:</span></b> A Mailing list for WIEN2k users <wien@zeus.theochem.tuwien.ac.at> <br> <b><span style="font-weight: bold;">Sent:</span></b> Wednesday, June 27, 2012 2:01 PM<br>
<b><span style="font-weight: bold;">Subject:</span></b> Re: [Wien] AMD or intel CPU<br> </font> </div> <br>
<div id="yiv514563557"><div>N.B. Wien works on both platforms, in case that was not obvious</div>
<div>---------------------------<br>
Professor Laurence Marks<br>
Department of Materials Science and Engineering<br>
Northwestern University<br>
<a rel="nofollow" target="_blank" href="http://www.numis.northwestern.edu/">www.numis.northwestern.edu</a> 1-847-491-3996<br>
"Research is to see what everybody else has seen, and to think what nobody else has thought"<br>
Albert Szent-Gyorgi<br>
</div>
<div class="yiv514563557gmail_quote">On Jun 27, 2012 7:00 AM, "Laurence Marks" <<a rel="nofollow" ymailto="mailto:L-marks@northwestern.edu" target="_blank" href="mailto:L-marks@northwestern.edu">L-marks@northwestern.edu</a>> wrote:<br><blockquote class="yiv514563557gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div>The advantage of Intel chips is that the ifort compiler and mkl libraries are do a good job optimising for them. Sometimes they are not so fast for AMD. However, other things such as RAM, disk speed, cache also matter.</div>
<div>If you are buying a cluster, get the vendor to let you benchmark. </div>
<div>---------------------------<br>
Professor Laurence Marks<br>
Department of Materials Science and Engineering<br>
Northwestern University<br>
<a rel="nofollow" target="_blank" href="http://www.numis.northwestern.edu/">www.numis.northwestern.edu</a> 1-847-491-3996<br>
"Research is to see what everybody else has seen, and to think what nobody else has thought"<br>
Albert Szent-Gyorgi<br>
</div>
<div class="yiv514563557gmail_quote">On Jun 27, 2012 6:53 AM, "ali ghafari" <<a rel="nofollow" ymailto="mailto:aaghafari@yahoo.com" target="_blank" href="mailto:aaghafari@yahoo.com">aaghafari@yahoo.com</a>> wrote:<br><blockquote class="yiv514563557gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
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<div style="font-size:12pt;font-family:times new roman, new york, times, serif;">
<div>Dear Profs. Blaha and users</div>
<div>We want to buy new computer for Wien2k calculation. The question is which kind of platforms (AMD or inlet) are suitable for Wien2k package?
<br>
</div>
<div>Best Regards</div>
<div>Ali<br>
</div>
</div>
</div>
</blockquote></div>
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