<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Mar 4, 2019 at 9:30 AM Pietro Davide Delugas <<a href="mailto:pdelugas@sissa.it">pdelugas@sissa.it</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">
  
    
  
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    <div class="gmail-m_-3799515598419912908moz-cite-prefix">Hi Federico<br>
      <br>
      have  you been working with 6.3 stable version or with the develop
      version(s) ? <br></div></div></blockquote><div><br></div><div>6.3 stable version always</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div bgcolor="#FFFFFF"><div class="gmail-m_-3799515598419912908moz-cite-prefix">
      does the error occur with this system or also with other systems ?
</div></div></blockquote><div><br></div><div>For the moment  it occurs with the same system CuFeO2 but in different geometry : periodic supercell ans slabs </div><div><br></div><div>For the "simple" bulk system I do not get any error. The problems starts when I increase the size of my system. But this error does not come from  memory problem, does it ?</div><div><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 bgcolor="#FFFFFF"><div class="gmail-m_-3799515598419912908moz-cite-prefix">      <br>
      what MPI library are you using ? <br></div></div></blockquote><div><br></div><div>INTEL MPIRUN that comes along with the MKL and INTEL compiler release 2018$</div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div bgcolor="#FFFFFF"><div class="gmail-m_-3799515598419912908moz-cite-prefix">
      have you tried to compile using the ELPA library ? <br></div></div></blockquote><div><br></div><div>Nope. </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div bgcolor="#FFFFFF"><div class="gmail-m_-3799515598419912908moz-cite-prefix">
      <br>
      sorry for replying with more questions  and no answer <br></div></div></blockquote><div><br></div><div>Don't worry. I really appreciate the effort.</div><div><br></div><div>Other doubt: could I come from the PS Libray pseudo ?</div><div>At the beginning I was using the PS libs pseudo compiled by me. Then I switch to the same ones but uploaded on the QE website.</div><div><br></div><div><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 bgcolor="#FFFFFF"><div class="gmail-m_-3799515598419912908moz-cite-prefix">
      Pietro <br></div></div></blockquote><div><br></div><div><br></div><div>Thanks again! </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div bgcolor="#FFFFFF"><div class="gmail-m_-3799515598419912908moz-cite-prefix">
      <br>
      <br>
      <br>
      On 03/01/2019 04:58 PM, IORI, Federico wrote:<br>
    </div>
    <blockquote type="cite">
      
      <div dir="ltr">Hi everybody.
        <div>I am working with QE 6.3 and from today also testing QE 6.4
          on a CuFeO2 supercell (4x4x1, large system)</div>
        <div>Recently (since some weeks) I found randomly but very often
          this error poping up after the 1st - 2nd scf iterations after
          the initialization of the wfc.</div>
        <div><br>
        </div>
        <div><font face="monospace, monospace">forrtl: severe (71):
            integer divide by zero<br>
            Image              PC                Routine           
            Line        Source<br>
            pw.x               0000000000CFE59E  Unknown              
            Unknown  Unknown<br>
            libpthread-2.22.s  00007FFFEFCA5C10  Unknown              
            Unknown  Unknown<br>
            libmkl_scalapack_  00007FFFF790512D  pzhbrdb_             
            Unknown  Unknown<br>
            libmkl_scalapack_  00007FFFF781765C  pzherdb_             
            Unknown  Unknown<br>
            libmkl_scalapack_  00007FFFF77842B9  mkl_pzheevd0_        
            Unknown  Unknown<br>
            libmkl_scalapack_  00007FFFF7782984  mkl_pzheevdm_        
            Unknown  Unknown<br>
            libmkl_scalapack_  00007FFFF778191C  pzheevd_             
            Unknown  Unknown<br>
            pw.x               0000000000B8E667 
            zhpev_module_mp_p        1566  zhpev_drv.f90<br>
            pw.x               0000000000B59CD3 
            pcdiaghg_                 339  cdiaghg.f90<br>
            pw.x               0000000000A8B37A 
            pcegterg_                 957  cegterg.f90<br>
            pw.x               0000000000659331 
            diag_bands_               497  c_bands.f90<br>
            pw.x               00000000006569FB 
            c_bands_                  101  c_bands.f90<br>
            pw.x               000000000040CAF1 
            electrons_scf_            566  electrons.f90<br>
            pw.x               0000000000409C04 
            electrons_                152  electrons.f90<br>
            pw.x               00000000005765BA 
            run_pwscf_                133  run_pwscf.f90<br>
            pw.x               00000000004077B5 
            MAIN__                     98  pwscf.f90<br>
            pw.x               000000000040761E  Unknown              
            Unknown  Unknown<br>
            <a href="http://libc-2.22.so/" target="_blank">libc-2.22.so</a>      
            00007FFFEF613725  __libc_start_main     Unknown  Unknown<br>
            pw.x               0000000000407529  Unknown              
            Unknown  Unknown  </font><br>
        </div>
        <div><br>
        </div>
        <div>Both QE versions are compiled with INTEL 2018 on a Xeon
          Gold 6128 based cluster linking MKL libraries</div>
        <div>The error is reproduced on all the different nodes of the
          cluster.</div>
        <div><br>
        </div>
        <div>I check that the zhpev_drv.f90 routine, where the error
          seems to come from,  is in the<font face="monospace,
            monospace"> LAXlib</font>  part, but I don't have still any
          idea about the why and the how.</div>
        <div>I am not convinced it is related to memory problem.</div>
        <div><br>
        </div>
        <div>Is there anyone who can give me some hints?</div>
        <div><br>
        </div>
        <div>In attachment the <a href="http://pw.in" target="_blank">pw.in</a> and pw.out for sake of
          completeness.</div>
        <div><br>
        </div>
        <div>Thanks so much.</div>
        <div>Federico</div>
        <div>
          <div><br>
          </div>
          -- <br>
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                                  <div><span style="background-color:transparent;font-family:Arial;font-size:10pt;font-weight:700;white-space:pre-wrap">Federico IORI</span><br>
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