<div dir="ltr"><div><div><div><div>Hi Paolo,<br><br></div><div>Thanks for your prompt reply.<br></div>I went back to check the code path again.<br></div>I was only using -D__LINUX_ESSL never -D__ESSL.<br></div>So I made a mistake (sorry for the confusion) in my previous analysis.<br></div><div>Actually, cdiagh_lapack seems causing problems.<br></div><div>Now I set<br>#if defined (__ESSL) || defined (__LINUX_ESSL)<br></div><div>to take the cdiagh_aix and it works well.<br><br></div><div>Ciao,<br></div><div>Ye<br></div><div><br></div><br></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr">===================<br>
Ye Luo, Ph.D.<br>
Leadership Computing Facility<br>
Argonne National Laboratory</div></div></div>
<br><div class="gmail_quote">2016-05-09 1:16 GMT-05:00 Paolo Giannozzi <span dir="ltr"><<a href="mailto:p.giannozzi@gmail.com" target="_blank">p.giannozzi@gmail.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>Hi<br><br></div>as far as I now, you should NOT use "-D__ESSL" on BGQ machines, but "-D__LINUX_ESSL". Also please not that irreps are build using a stochastic algorithms so their phases are quite unpredictable. Anyway: if it works for you, it's fine: the performance penalty should be negligible, or even nonexistent.<br><div class="gmail_extra"><div class="gmail_quote"><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>PS: I send an email a few weeks ago and got no reply. I hope someone can also answer these questions [...]<br> <br></div></div></blockquote><span class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div></div><div>2) Any ways to reduce the phonon disk I/O to 'none' similar to pw.x? Reduce_io seems help very little during the calculation.<br></div></div></blockquote><div><br></div></span><div>it actually does very little because it works for the self-consistent part only.<br></div><div>Unfortunately, reducing I/O in the phonon code (a problem that must be addressed sooner or later, sooner better than later) requires a serious investment in terms of time and effort.<span class="HOEnZb"><font color="#888888"><br></font></span></div><span class="HOEnZb"><font color="#888888"><br></font></span></div><span class="HOEnZb"><font color="#888888"><div class="gmail_quote">Paolo<br></div><br>-- <br><div><div dir="ltr"><div><div dir="ltr"><div>Paolo Giannozzi, Dip. Scienze Matematiche Informatiche e Fisiche,<br>Univ. Udine, via delle Scienze 208, 33100 Udine, Italy<br>Phone <a href="tel:%2B39-0432-558216" value="+390432558216" target="_blank">+39-0432-558216</a>, fax <a href="tel:%2B39-0432-558222" value="+390432558222" target="_blank">+39-0432-558222</a><br><br></div></div></div></div></div>
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