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    <p><font face="Times New Roman">The SSD is probably faster than the
        HDD for read/writing, but it may vary with hardware.  Also, the
        data write time can be slower than the read time for the SSD. [
        <a class="moz-txt-link-freetext" href="https://www.kompulsa.com/whats-difference-ssd-hard-drive/">https://www.kompulsa.com/whats-difference-ssd-hard-drive/</a> ].  So
        I would probably run a test calculation on both and compare the
        walltimes.  <br>
      </font></p>
    <p><font face="Times New Roman">For reading data, the SSD should be
        better, so I would put the OS and WIEN2k installation on the
        SSD.  For writing of data, if calculation time is your concern,
        then it may be better to put to put the WIEN2k calculation data
        on the SSD (path set during userconfig_lapw).  If drive lifetime
        is a concern, because frequent scf cycle writing will reduce the
        drives lifetime [
        <a class="moz-txt-link-freetext" href="https://blog.westerndigital.com/ssd-endurance-speeds-feeds-needs/">https://blog.westerndigital.com/ssd-endurance-speeds-feeds-needs/</a>
        ], then put it on the HDD.  After the calculation finishes
        running on the SDD, you could also just copy the data to the HDD
        for storage.</font></p>
    <p><font face="Times New Roman">Regarding the "No compatible python
        found", that might be for BerryPI.  I think it uses python 2.7. 
        So, if you don't use BerryPI, then it should not be important
        for WIEN2k installation.  <br>
      </font></p>
    <p><font face="Times New Roman">BoltzTraP2 needs python 3.5 or
        higher [
<a class="moz-txt-link-freetext" href="https://www.imc.tuwien.ac.at/forschungsbereich_theoretische_chemie/forschungsgruppen/prof_dr_gkh_madsen_theoretical_materials_chemistry/boltztrap2/">https://www.imc.tuwien.ac.at/forschungsbereich_theoretische_chemie/forschungsgruppen/prof_dr_gkh_madsen_theoretical_materials_chemistry/boltztrap2/</a>
        ].  With Ubuntu 16.04 LTS and later, I think those can both be
        installed with something like [
<a class="moz-txt-link-freetext" href="https://askubuntu.com/questions/981118/correct-way-to-install-python-2-7-on-ubuntu-17-10/981279">https://askubuntu.com/questions/981118/correct-way-to-install-python-2-7-on-ubuntu-17-10/981279</a>
        ]:</font></p>
    <p><font face="Times New Roman">sudo apt-get install python</font></p>
    <p><font face="Times New Roman">sudo apt-get install python3</font></p>
    <p><font face="Times New Roman">For "32-bit libraries not found", I
        don't remember what the packages needed are, but those likely
        can be installed with apt-get as well.<br>
      </font></p>
    <div class="moz-cite-prefix">On 5/14/2018 5:48 AM, Victor Zenou
      wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAOFFwJ46MmQ2hwCqz5+ZPK+8sojf2KF0ZeZtvJRNHDE1jty0jQ@mail.gmail.com">
      <div dir="rtl">
        <div dir="ltr">Hi</div>
        <div dir="ltr">2. For some reason I didn't look up at 'System
          Requirements' for Parallel studio xe 2018.  It is only
          supported for Ubuntu versions 14.04, 16.04, 17.04
          <div dir="ltr">I will try Ubuntu 17.04. (probably its better
            to avoid installation at late night :)) </div>
        </div>
        <div dir="ltr">Another option is probably use gfortran, which is
          far as I understand is less better than ifort.</div>
        <div dir="ltr"><br>
        </div>
        <div dir="ltr">1. I guess that since a lot of writing to disk,
          SSD would be better for OS, Wien2k and Wien2k data.</div>
        <div dir="ltr"><br>
        </div>
        <div dir="ltr">Thanks, Victor</div>
        <div dir="ltr"><br>
        </div>
        <div dir="ltr"><br>
        </div>
      </div>
      <div class="gmail_extra"><br>
        <div class="gmail_quote">
          <div dir="ltr">2018-05-14 13:17 GMT+03:00 Laurence Marks <span
              dir="ltr"><<a href="mailto:L-marks@northwestern.edu"
                target="_blank" moz-do-not-send="true">L-marks@northwestern.edu</a>></span>:</div>
          <blockquote class="gmail_quote" style="margin:0
            .8ex;border-left:1px #ccc solid;border-right:1px #ccc
            solid;padding-left:1ex;padding-right:1ex">
            <div dir="auto">I suggest that you do some simple "Hello
              World" test ifort/icc compilations to check it ifort did
              really install or not. I know the latest version would not
              install on my cluster (or work) because the OS was too
              old.<br>
              <br>
              <div data-smartmail="gmail_signature">_____<br>
                Professor Laurence Marks<br>
                "Research is to see what everybody else has seen, and to
                think what nobody else has thought", Albert Szent-Gyorgi<br>
                <a href="http://www.numis.northwestern.edu"
                  target="_blank" moz-do-not-send="true">www.numis.northwestern.edu</a></div>
            </div>
            <div class="HOEnZb">
              <div class="h5"><br>
                <div class="gmail_quote">
                  <div dir="ltr">On Mon, May 14, 2018, 1:18 AM Victor
                    Zenou <<a href="mailto:zanov@post.bgu.ac.il"
                      target="_blank" moz-do-not-send="true">zanov@post.bgu.ac.il</a>>
                    wrote:<br>
                  </div>
                  <blockquote class="gmail_quote" style="margin:0px 0px
                    0px
0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid">
                    <div>
                      <div dir="rtl">
                        <p style="margin:0in 0in
                          8pt;text-align:left;unicode-bidi:embed;direction:ltr"
                          dir="LTR">
                          <span
                            style="color:black;line-height:107%;font-family:"Times
                            New Roman",serif;font-size:12pt">I
                            decided to upgrade to Wien2k_17.1 , as was
                            suggested</span><b><span
                              style="color:black;line-height:107%;font-size:13.5pt"><font
                                face="Calibri">.</font></span></b><span
style="color:black;line-height:107%;font-family:"Times New
                            Roman",serif;font-size:12pt">
                          </span></p>
                        <p style="margin:0in 0in
                          8pt;text-align:left;unicode-bidi:embed;direction:ltr"
                          dir="LTR">
                          <span
                            style="color:black;line-height:107%;font-family:"Times
                            New Roman",serif;font-size:12pt">I
                            installed the last version of Ubuntu, 18.04,
                            (supposed to be 64 bit) on PC with intel
                            Xeon processor. I have 2 drives: 256 GB SSD
                            and 500 SATA HDD.
                          </span></p>
                        <p style="margin:0in 0in
                          8pt;text-align:left;unicode-bidi:embed;direction:ltr"
                          dir="LTR">
                          <span
                            style="color:black;line-height:107%;font-family:"Times
                            New Roman",serif;font-size:12pt">First
                            question: Its known that SSD is much faster
                            than SATA or any HDD, and usually operating
                            systems are installed on SSD. Is it
                            important to install wien2k on SSD, as I
                            definitely want my wien2k data to be on the
                            bigger drive (500 GB)?</span></p>
                        <p style="margin:0in 0in
                          8pt;text-align:left;unicode-bidi:embed;direction:ltr"
                          dir="LTR">
                          <span
                            style="color:black;line-height:107%;font-family:"Times
                            New Roman",serif;font-size:12pt"> </span></p>
                        <p style="margin:0in 0in
                          0pt;text-align:left;line-height:normal;unicode-bidi:embed;direction:ltr"
                          dir="LTR">
                          <span
                            style="color:black;font-family:"Times
                            New Roman",serif;font-size:12pt">Second
                            question: In order to use 'ifort' and 'mkl
                            libraries' I tried to install Parallel
                            studio xe 2018, but got some errors
                            regarding to "</span><span
                            style="color:black;font-family:"Times
                            New Roman",serif;font-size:12pt"
                            lang="EN">Missing optional prerequisites":<br>
                            -- Unsupported OS<br>
                            -- Intel(R) Trace Analyzer and Collector
                            2018 for Linux* OS: Unsupported OS<br>
                            -- Intel(R) Cluster Checker 2018 Update 3
                            for Linux* OS: Unsupported OS<br>
                            -- Intel(R) VTune(TM) Amplifier XE 2018
                            update 2: Unsupported OS<br>
                            -- Intel(R) Inspector 2018: Unsupported OS<br>
                            -- Intel(R) Advisor 2018: Unsupported OS<br>
                            -- Driver build options are incomplete.
                            Drivers cannot be built.</span></p>
                        <p style="margin:0in 0in
                          8pt;text-align:left;unicode-bidi:embed;direction:ltr"
                          dir="LTR">
                          <span
                            style="color:black;line-height:107%;font-family:"Times
                            New Roman",serif;font-size:12pt"> </span></p>
                        <p style="margin:0in 0in
                          8pt;text-align:left;unicode-bidi:embed;direction:ltr"
                          dir="LTR">
                          <span
                            style="color:black;line-height:107%;font-family:"Times
                            New Roman",serif;font-size:12pt">I also
                            got:</span></p>
                        <p style="margin:0in 0in
                          8pt;text-align:left;unicode-bidi:embed;direction:ltr"
                          dir="LTR">
                          <span
                            style="color:black;line-height:107%;font-family:"Times
                            New Roman",serif;font-size:12pt">missing
                            system commands</span></p>
                        <p style="margin:0in 0in
                          8pt;text-align:left;unicode-bidi:embed;direction:ltr"
                          dir="LTR">
                          <span
                            style="color:black;line-height:107%;font-family:"Times
                            New Roman",serif;font-size:12pt">No
                            compatible python found</span></p>
                        <p style="margin:0in 0in
                          8pt;text-align:left;unicode-bidi:embed;direction:ltr"
                          dir="LTR">
                          <span
                            style="color:black;line-height:107%;font-family:"Times
                            New Roman",serif;font-size:12pt">32-bit
                            libraries not found (libstdc++ (including
                            libstdc++6), glibc and libgcc). Without
                            these libraries the compiler will not
                            function properly.
                          </span></p>
                        <p style="margin:0in 0in
                          8pt;text-align:left;unicode-bidi:embed;direction:ltr"
                          dir="LTR">
                          <span
                            style="color:black;line-height:107%;font-family:"Times
                            New Roman",serif;font-size:12pt"> </span></p>
                        <p style="margin:0in 0in
                          8pt;text-align:left;unicode-bidi:embed;direction:ltr"
                          dir="LTR">
                          <span
                            style="color:black;line-height:107%;font-family:"Times
                            New Roman",serif;font-size:12pt">Are
                            these "missing
                          </span><span
                            style="color:black;line-height:107%;font-family:"Times
                            New Roman",serif;font-size:12pt"
                            lang="EN">optional prerequisites</span><span
style="color:black;line-height:107%;font-family:"Times New
                            Roman",serif;font-size:12pt">"
                            important to wien2k installation?</span></p>
                        <p style="margin:0in 0in
                          8pt;text-align:left;unicode-bidi:embed;direction:ltr"
                          dir="LTR">
                          <span
                            style="color:black;line-height:107%;font-family:"Times
                            New Roman",serif;font-size:12pt"> </span></p>
                        <p style="margin:0in 0in
                          8pt;text-align:left;unicode-bidi:embed;direction:ltr"
                          dir="LTR">
                          <span
                            style="color:black;line-height:107%;font-family:"Times
                            New Roman",serif;font-size:12pt">Thanks,Victor
                          </span></p>
                      </div>
                    </div>
                  </blockquote>
                </div>
              </div>
            </div>
          </blockquote>
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