Dear all QE users,<br><br>I m having problem with reading of pp&#39;s taken from QE site <a href="http://www.quantum-espresso.org/pseudo.php">http://www.quantum-espresso.org/pseudo.php</a><br><br>I did many scf runs e.g. on Al, AlAs, PbTiO3 etc., and found the problem in reading the pp file.<br>

<br>Error of not finding the  pp file comes( like file ./Al.pz-vbc_s1.UPF not found), while with exactly same pp present in &quot;pseudo&quot;, no error comes. e.g  with   Al, As  pp&#39;s : Al.pz-vbc.UPF, As.pz-bhs.UPF etc.<br>

<br>I, further, checked  by reading the first two lines of pp&#39;s. PP&#39;s present in &quot;pseudo&quot; are read  but  that taken from site are not read.<br><br>small trivial program used to read is:<br>  program red<br>

      implicit none<br>      character :: char1*10, char2*50<br>      open(unit=1, file=&quot;As.pz-bhs.UPF&quot;, status=&quot;old&quot;) <br>  <br>      read (1,&quot;(A10)&quot;) char1<br>      read (1,&quot;(A50)&quot;) char2<br>

      <br>      write(*,&quot;(A10)&quot;) char1<br>      write(*,&quot;(A50)&quot;) char2<br>  end program red<br><br>Output of above program:<br><br>1)For pp As.pz-bhs.UPF in &quot; pseudo &quot; is :   <br><br>&lt;PP_INFO&gt; <br>

Generated using unknown code  <br><br>2) For EXACTLY SAME pp As.pz-bhs.UPF from site is:<br><br>forrtl: No such file or directory<br>forrtl: severe (29): file not found, unit 1, file /home/hcg/Desktop/DESKTOP_sonu/CODES/pwscf/sonu-exercise_QE/AlAs/As.pz-bhs_s1.UPF<br>

Image              PC                Routine            Line        Source             <br>a.out              000000000046E6BD  Unknown               Unknown  Unknown<br>a.out              000000000046D1C5  Unknown               Unknown  Unknown<br>

a.out              0000000000447EE9  Unknown               Unknown  Unknown<br>a.out              000000000043596F  Unknown               Unknown  Unknown<br>a.out              00000000004351A2  Unknown               Unknown  Unknown<br>

a.out              0000000000408FDD  Unknown               Unknown  Unknown<br>a.out              0000000000402CC4  Unknown               Unknown  Unknown<br>a.out              0000000000402C2C  Unknown               Unknown  Unknown<br>

libc.so.6          00007FDAD9BB6586  Unknown               Unknown  Unknown<br>a.out              0000000000402B29  Unknown               Unknown  Unknown<br><br><br><br>I don&#39;t know why the pp&#39;s are  not read by the program?<br>

<br>I really need your help !!!<br>Please help me to find the solution.<br><br>With Kind Regards, <br>Sonu Kumar<br><br>Phd Student<br>Physics Department<br>Indian Institute of Technology <br>Delhi-110016, India<br>web:-<a href="http://www.iitd.ac.in/">http://www.iitd.ac.in/</a><br>