<div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;color:#000000">N.B., you can also add to <span style="color:rgb(37,37,37);font-family:intel-clear,tahoma,Helvetica,helvetica,Arial,sans-serif;font-size:16px"><a href="https://software.intel.com/en-us/comment/1930019">https://software.intel.com/en-us/comment/1930019</a> if you have seen the memory leak...</span></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Feb 13, 2019 at 7:01 AM Laurence Marks <<a href="mailto:L-marks@northwestern.edu">L-marks@northwestern.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(0,0,0)">Some months ago I reported a severe memory leak in lapw1_mpi with Intel impi. The leak is present for certain in all 2019 versions, but goes away if one regresses the version (I use 2015). I know of one other Wien2k user who has found it, and I recently found it on an AMD test node.</div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(0,0,0)"><br></div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(0,0,0)"> I reported it to Intel on 11/26/2018 and it is request <span style="font-family:intel-clear,tahoma,Helvetica,helvetica,Arial,sans-serif;font-size:16px;color:rgb(37,37,37);text-align:right">03837257. Beyond a software engineer at Intel verifying it and indicating that it is probably in impi (which I already knew) it is going nowhere. Perhaps some of you can cross-report it, maybe this will help. </span></div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(0,0,0)"><span style="font-family:intel-clear,tahoma,Helvetica,helvetica,Arial,sans-serif;font-size:16px;color:rgb(37,37,37);text-align:right"><br></span></div><div class="gmail_default" style="font-family:verdana,sans-serif;color:rgb(0,0,0)"><span style="font-family:intel-clear,tahoma,Helvetica,helvetica,Arial,sans-serif;font-size:16px;color:rgb(37,37,37);text-align:right">I strongly suspect that the bug is linked to </span>PDSYGST in seclr4.F. Based upon my tests this is (with elpa) the road block, as it does not scale with the number of cores used (i.e. time taken is essentially independent of cores) for larger problems (e.g. 50K matrix size)<br></div><div><br></div>-- <br><div dir="ltr" class="gmail-m_7628041111701023286gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><span style="font-size:12.8px">Professor Laurence Marks</span><br></div><div dir="ltr"><span style="font-size:12.8px">"Research is to see what everybody else has seen, and to think what nobody else has thought", </span><span style="font-size:12.8px">Albert Szent-Gyorgi</span><br><a href="http://www.numis.northwestern.edu" target="_blank">www.numis.northwestern.edu</a> ; <span style="font-size:12.8px">Corrosion in 4D: </span><a href="http://MURI4D.numis.northwestern.edu" style="font-size:12.8px" target="_blank">MURI4D.numis.northwestern.edu</a><div><span style="font-size:12.8px">Partner of the CFW 100% program for gender equity, </span><a href="http://www.cfw.org/100-percent" style="font-size:12.8px" target="_blank">www.cfw.org/100-percent</a></div><div>Co-Editor, Acta Cryst A</div></div></div></div></div></div></div></div></div></div></div></div></div>
</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><span style="font-size:12.8px">Professor Laurence Marks</span><br></div><div dir="ltr"><span style="font-size:12.8px">"Research is to see what everybody else has seen, and to think what nobody else has thought", </span><span style="font-size:12.8px">Albert Szent-Gyorgi</span><br><a href="http://www.numis.northwestern.edu" target="_blank">www.numis.northwestern.edu</a> ; <span style="font-size:12.8px">Corrosion in 4D: </span><a href="http://MURI4D.numis.northwestern.edu" style="font-size:12.8px" target="_blank">MURI4D.numis.northwestern.edu</a><div><span style="font-size:12.8px">Partner of the CFW 100% program for gender equity, </span><a href="http://www.cfw.org/100-percent" style="font-size:12.8px" target="_blank">www.cfw.org/100-percent</a></div><div>Co-Editor, Acta Cryst A</div></div></div></div></div></div></div></div></div></div></div>