<div dir="ltr">Thanks to you both for the suggestions. The OS was recently updated beyond those versions mentioned in the link (now 6100-08).<div><br></div><div style>Adding the iostat statement to all the errclr.f files prevents the program from stopping altogether although error messages sill appear in the output:</div>
<div style><br></div><div style><div>STOP LAPW0 END</div><div>STOP LAPW0 END</div><div>STOP LAPW0 END</div><div>STOP LAPW0 END</div><div>STOP LAPW0 END</div><div>STOP LAPW1 - Error</div><div>STOP LAPW1 END</div><div>
STOP LAPW1 END</div><div>STOP LAPW1 END</div><div>STOP LAPW1 END</div><div>STOP LAPW1 - Error</div><div>STOP LAPW1 END</div><div>STOP LAPW1 END</div><div>STOP LAPW1 END</div><div>STOP LAPW1 END</div><div>STOP LAPW2 - FERMI; weighs written</div>
<div>STOP LAPW2 END</div><div>STOP LAPW2 END</div><div>STOP LAPW2 END</div><div>STOP LAPW2 END</div><div>STOP LAPW2 END</div><div>STOP SUMPARA END</div><div>STOP LAPW2 - FERMI; weighs written</div><div>STOP LAPW2 END</div>
<div>STOP LAPW2 END</div><div>STOP LAPW2 END</div><div>STOP LAPW2 END</div><div>STOP LAPW2 END</div><div>STOP SUMPARA END</div><div>STOP CORE END</div><div>STOP CORE END</div><div>STOP MIXER END</div><div><br></div>
<div><br></div><div style>which are more prevalent when using higher processor counts. After completing a few runs with more processors, the times have continually increased:</div><div style><br></div><div style><div>real 6m43.33s </div>
<div>user 6m19.18s serial </div><div>sys 0m13.59s </div>
<div> </div><div>real 10m36.03s </div>
<div>user 1m4.68s 2proc </div><div>sys 0m47.79s </div>
<div> </div><div>real 11m11.25s </div>
<div>user 1m5.24s 4proc </div><div>sys 0m52.17s </div>
<div> </div><div>real 11m39.17s </div>
<div>user 1m6.18s 8proc </div><div>sys 1m10.65s </div>
<div> </div><div>real 14m31.16s </div>
<div>user 1m7.95s 16proc </div><div>sys 2m7.63s </div>
<div><br></div><div>After looking into various IBM Parallel Operating Environment (poe) environmental variables (MP_SHARED_MEMORY,MP_IO_BUFFER_SIZE,MP_EAGER_LIMIT) it seems like none of them are improving performance. Any ideas why this is getting slower?<br>
</div></div></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, May 2, 2013 at 8:49 PM, Gavin Abo <span dir="ltr"><<a href="mailto:gsabo@crimson.ua.edu" target="_blank">gsabo@crimson.ua.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im"><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
STOP LAPW0 END<br>
"inilpw.f", line 233: 1525-142 The CLOSE statement on unit 200 cannot be completed because an errno value of 2 (A file or directory in the path name does not exist.) was received while closing the file. The program will stop.<br>
STOP LAPW1 END<br>
</blockquote></div>
If this is on operating system AIX 6.1 [<a href="http://zeus.theochem.tuwien.ac.at/pipermail/wien/2013-March/018560.html" target="_blank">http://zeus.theochem.tuwien.<u></u>ac.at/pipermail/wien/2013-<u></u>March/018560.html</a>], the following link mentions that a fix might be needed for some release levels:<br>
<br>
<a href="http://www-01.ibm.com/support/docview.wss?uid=isg1IZ23555" target="_blank">http://www-01.ibm.com/support/<u></u>docview.wss?uid=isg1IZ23555</a><br>
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