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    <p>Dr. Chakrabarti,</p>
    <p>Looking at your "LCrT_GGA_opt_CrAFM_vol____1.00.struct" in a text
      editor, I see you have a P lattice:<br>
    </p>
    <p>P   LATTICE,NONEQUIV.ATOMS: 56<br>
    </p>
    <p>Which if the P lattice structure is not reduced by sgroup, it is
      probably computational demanding.<br>
    </p>
    <p>In your email below, I see:</p>
    <p>lapw1  -up     -c (02:23:17) <font color="#ff0000">Killed</font></p>
    <p>In the post at [1], you should see I encountered as similar error
      before:<br>
    </p>
    <p>nlvdw     (17:47:33) <font color="#ff0000">Killed</font><br>
    </p>
    <p>As you should see at [2], it turned out it my case that when I
      checked my /var/log that my calculation was <font color="#ff0000">killed</font>
      by my operating system as my computer hardware did not have enough
      memory to perform that calculation.<br>
    </p>
    <p>So in addition to what Prof. Marks previously stated, that could
      be another possible cause of your error.<br>
    </p>
    [1]
<a class="moz-txt-link-freetext" href="https://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg19701.html">https://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg19701.html</a><br>
    [2]
<a class="moz-txt-link-freetext" href="https://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg19703.html">https://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg19703.html</a>
    <p>Kind Regards,</p>
    <p>Gavin<br>
    </p>
    <div class="moz-cite-prefix">On 10/14/2021 1:14 AM, Laurence Marks
      wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CANkSMZAVkBk85wVxbu+jYTUB69xQhqRWzZzhqNhMYMmUfsb7LA@mail.gmail.com">
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      <div dir="auto">You have asked enough questions on this list, so
        you should know:
        <div dir="auto"><br>
        </div>
        <div dir="auto">a) Nobody can do more than make a wild guess
          without specific information from the error & output
          files.</div>
        <div dir="auto">b) Ignoring the symmetry of Imma that Wien2k
          finds, and using instead P1 can be expected to lead to
          problems.</div>
        <div dir="auto">c) Bad models lead to failure.</div>
        <div dir="auto"><br>
          <div data-smartmail="gmail_signature" dir="auto">--<br>
            Professor Laurence Marks<br>
            Department of Materials Science and Engineering<br>
            Northwestern University<br>
            <a href="http://www.numis.northwestern.edu"
              moz-do-not-send="true">www.numis.northwestern.edu</a><br>
            "Research is to see what everybody else has seen, and to
            think what<br>
            nobody else has thought" Albert Szent-Györgyi</div>
        </div>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr" class="gmail_attr">On Wed, Oct 13, 2021, 11:11 PM
          shamik chakrabarti <<a
            href="mailto:shamik15041981@gmail.com"
            moz-do-not-send="true" class="moz-txt-link-freetext">shamik15041981@gmail.com</a>>
          wrote:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0 0 0
          .8ex;border-left:1px #ccc solid;padding-left:1ex">
          <div dir="ltr">Dear Wien2k users,
            <div><br>
            </div>
            <div>                       I have started to run volume
              optimization (a:b:c-constant) of a spinel compound
              (structure attached). However, at the second cycle an
              error appeared as below;</div>
            <div><br>
            </div>
            <div><b>ERROR status in LCrT_GGA_opt_CrAFM_vol____1.00<br>
                >   stop error<br>
                <br>
                STOP  LAPW0 END<br>
                hup: Command not found</b></div>
            <div><br clear="all">
              <div> as can be seen from STDOUT</div>
              <div><br>
              </div>
              <div>dayfile is showing the error as,</div>
              <div><br>
              </div>
              <div><b>cycle 2 (Thu Oct 14 02:21:55 IST 2021) (998/998 to
                  go)</b></div>
              <b><br>
                >   lapw0   (02:21:56) 185.3u 0.7s 1:21.24 229.1%
                0+0k 3888+212272io 11pf+0w<br>
                >   lapw1  -up     -c (02:23:17) Killed<br>
                6805.4u 1119.5s 47:18.62 279.1% 0+0k 3304+1071168io
                13pf+0w<br>
                error: command   /usr/local/Wien2k/lapw1c uplapw1.def  
                failed<br>
              </b><br>
              <b>>   stop error--</b></div>
            <div><b><br>
              </b></div>
            <div>Thanks in advance.</div>
            <div><br>
            </div>
            <div>with regards,</div>
            <div><b><br>
              </b></div>
            <div><b><br>
              </b>
              <div dir="ltr" data-smartmail="gmail_signature">
                <div dir="ltr">
                  <div>
                    <div dir="ltr">
                      <div dir="ltr">
                        <div dir="ltr">
                          <div dir="ltr">
                            <div style="font-size:small">Dr. Shamik
                              Chakrabarti</div>
                            <div style="font-size:small">Research
                              Fellow </div>
                            <div style="font-size:small">Department of
                              Physics</div>
                            <div style="font-size:small">Indian
                              Institute of Technology Patna</div>
                            <div style="font-size:small">Bihta-801103</div>
                            <div style="font-size:small">Patna</div>
                            <div style="font-size:small">Bihar, India</div>
                          </div>
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