<div dir="ltr"><div>The link you cite is not relevant to your case in my opinion. Check that your input makes sense: funny errors like this are sometimes a consequence of a bad input, with too close atoms<br><br></div>Paolo<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Sep 27, 2017 at 4:43 PM, Amar Singh <span dir="ltr"><<a href="mailto:amarsingh122014@rediffmail.com" target="_blank">amarsingh122014@rediffmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Friends,<br> I am trying to use pw.x (and pw.exe before) for a structure optimization. Initially I was using QE5.3 on windows 10 and was encountering "Error in routine Invmat (1) : error in DGETRF" error. I found on forum (<a href="http://qe-forge.org/pipermail/pw_forum/2014-September/105120.html" target="_blank">http://qe-forge.org/<wbr>pipermail/pw_forum/2014-<wbr>September/105120.html</a>) that the bug problem is in QE5.1. Now I am using QE6.1 via Ubuntu, but surprisingly getting the same error. Will appreciate any help in this regard.<br>thanks<br><br><br>______________________________<wbr>_________________<br>
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