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    <div class="moz-cite-prefix">To me, it seems that the error could
      likely be due to a buggy Intel compiler version.  Which is
      something the WIEN2k community knows about from past experience. 
      For example, the post [1].<br>
      <br>
      What ifort version did you use to compile WIEN2k 16.1 (e.g., the
      version should be given by terminal command: ifort -v)?<br>
      <br>
      As mentioned before, recently [2], you don't want to use ifort
      version 16.0.3 as it is known to have a serious bug that could
      cause such an error, and Intel recommends according to
      DPD200411901 [3] to use ifort version 16.0.4 (update 4) [4] or the
      initial releases of 17.0.0 or 17.0.1 [5].<br>
      <br>
      If you happen to be using an ifort version 15.x just before
      16.0.0, perhaps there is also segmentation fault and reading and
      writing file issues as in the fixes list [6] there are things
      like:<br>
      <br>
      DPD200363367, Fortran, SIGSEGV at runtime when compiling with -ipo
      <br>
      DPD200363710, Fortran, Errors doing INQUIRE, READ and WRITE in
      parallel threads<br>
      DPD200364274, Fortran, UDIO direct, unformatted read/write don't
      call child routine, don't transfer data <br>
      <br>
      The following is a list of some of the things that I try when I
      encounter such a problem.<br>
      <br>
      a) Backup the effected executable (lapw2c) in your $WIENROOT
      directory that you compiled and try replacing it with the one from
      the executables package (WIEN2k_16.1_executables.tar.gz).<br>
      <br>
      b) Try different compiler settings.<br>
          - Try different optimization levels like -O0 and -O1.  The
      compiler can sometimes over-optimize at a high optimization level
      like -O3.<br>
          - Try to compile against static libraries instead of dynamic
      libraries, or vice versa.   Intel link advisor [7] can help you
      change the compiler settings between static and dynamic linking.<br>
      <br>
      c) Try a different compiler<br>
          - Try different versions of the ifort compiler.  Sometimes one
      version works and another does not.<br>
          - Try a different compiler (gfortran)<br>
          - Try 32 bit compiler instead of 64 bit.  Not recommended to
      do this on 64 bit system unless you have to.  I have a 64 bit
      laptop, and I could only get Wien2k working on it by creating a 32
      bit executable instead of 64 bit.  However, this is likely only
      because it has an unusual processor (a PlayStation processor
      instead of a typical Intel one like a Core 2 or Intel i8).<br>
      <br>
      d) Try a different operating system (preferably one that is
      officially supported by the compiler)<br>
          - If you see the System Requirements section in the Intel
      release notes [8] for your ifort version, you will likely see that
      Intel tests and official supports their ifort compiler on
      operating systems such as Ubuntu and Red Hat.  For example,
      Scientific Linux is not in the list, but others have Wien2k
      working with it [9].  Though, there is always the slight chance
      that the operating system and ifort compiler might not work well
      together when they are not official tested together.<br>
      <br>
      Hope this helps and good luck.<br>
      <br>
      [1]
<a class="moz-txt-link-freetext" href="http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg03925.html">http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg03925.html</a><br>
      [2]
<a class="moz-txt-link-freetext" href="http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg14954.html">http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg14954.html</a><br>
      [3]
<a class="moz-txt-link-freetext" href="https://software.intel.com/en-us/articles/read-failure-unformatted-file-io-psxe-16-update-3">https://software.intel.com/en-us/articles/read-failure-unformatted-file-io-psxe-16-update-3</a><br>
      [4]
<a class="moz-txt-link-freetext" href="https://software.intel.com/en-us/articles/intel-fortran-compiler-160-for-linux-release-notes-for-intel-parallel-studio-xe-2016">https://software.intel.com/en-us/articles/intel-fortran-compiler-160-for-linux-release-notes-for-intel-parallel-studio-xe-2016</a><br>
      [5]
<a class="moz-txt-link-freetext" href="https://software.intel.com/en-us/articles/intel-fortran-compiler-170-for-linux-release-notes-for-intel-parallel-studio-xe-2017">https://software.intel.com/en-us/articles/intel-fortran-compiler-170-for-linux-release-notes-for-intel-parallel-studio-xe-2017</a><br>
      [6]
<a class="moz-txt-link-freetext" href="https://software.intel.com/en-us/articles/intel-parallel-studio-xe-2016-composer-edition-compilers-fixes-list">https://software.intel.com/en-us/articles/intel-parallel-studio-xe-2016-composer-edition-compilers-fixes-list</a><br>
      [7]
      <a class="moz-txt-link-freetext" href="https://software.intel.com/en-us/articles/intel-mkl-link-line-advisor">https://software.intel.com/en-us/articles/intel-mkl-link-line-advisor</a><br>
      [8]
<a class="moz-txt-link-freetext" href="https://software.intel.com/en-us/articles/intel-composer-release-notes-by-version">https://software.intel.com/en-us/articles/intel-composer-release-notes-by-version</a><br>
      [9]
<a class="moz-txt-link-freetext" href="http://www.mail-archive.com/wien%40zeus.theochem.tuwien.ac.at/msg06328.html">http://www.mail-archive.com/wien%40zeus.theochem.tuwien.ac.at/msg06328.html</a><br>
      <br>
      On 2/14/2017 5:27 AM, Rajneesh Chaurasiya wrote:<br>
    </div>
    <blockquote
cite="mid:CAOsEhO_TJJN+j1k21Ac-Y9j1b4a=60_KO0Zrbt9rSjOfBDqq0Q@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <div>Dear Wien2k users,<br>
        </div>
         I have optimized one perovskite based material in the past
        using wien2k_13 version and also computed properties but when i
        ran the same case.struct file using wien2k_16.1 version under
        the same environment then it gives error like<br>
        <div><br>
          LAPW0 END<br>
           LAPW1 END<br>
          forrtl: severe (39): error during read, unit 10, file
          /home/IITJHOME/ambeshst/WIEN2k/GGA.vector<br>
          Image              PC                Routine           
          Line        Source             <br>
          lapw2c             000000000051C01A  Unknown              
          Unknown  Unknown<br>
          lapw2c             000000000051AB95  Unknown              
          Unknown  Unknown<br>
          lapw2c             00000000004C96B6  Unknown              
          Unknown  Unknown<br>
          lapw2c             000000000047BE86  Unknown              
          Unknown  Unknown<br>
          lapw2c             000000000047B5F9  Unknown              
          Unknown  Unknown<br>
          lapw2c             000000000049FBF4  Unknown              
          Unknown  Unknown<br>
          lapw2c             0000000000466C74  read_vec_                
          164  read_vec_tmp_.F<br>
          lapw2c             0000000000440443  l2main_                  
          661  l2main_tmp_.F<br>
          lapw2c             00000000004598DF  MAIN__                   
          716  lapw2_tmp_.F<br>
          lapw2c             00000000004040AC  Unknown              
          Unknown  Unknown<br>
          libc.so.6          000000344221D9C4  Unknown              
          Unknown  Unknown<br>
          lapw2c             0000000000403FB9  Unknown              
          Unknown  Unknown<br>
          <br>
          <br>
        </div>
        <div>Can you suggest me a possible reason behind it.<br>
        </div>
        <div>  <br>
          -- <br>
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                  <div>
                    <div dir="ltr">
                      <div>
                        <div dir="ltr">Thanks & Regards
                          <div>Rajneesh Chaurasiya</div>
                          <div>Research Scholar<br>
                          </div>
                          <div>IIT Jodhpur, India<br>
                          </div>
                          <div>Mob. No. +91-9584499697<br>
                                          +91-7610950803<br>
                          </div>
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      </div>
    </blockquote>
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