[QE-users] running example problem

[Pietro Delugas]

Hi Marco

usually configure sets all environments variables by itself, and in my 
ubuntu 16.04 does it in the correct way. So you shouldn't need to set 
them by hand.

the way you defined PREFIX by the way seems somewhat baroque, are you 
sure that it is working  ?


On 20/04/2018 15:42, Marco Polo wrote:
> Dear all,
>
> I am trying to install QE-6.2.1 in Ubuntu 16.04
>
> first I did
>
> ./configure
>
> make all
>
> Installation seems to be successful.
>
> Then I changed the environmental variables in the following way:
>
> PREFIX='cd /home/marco/Quantum-Espresso/qe-6.2.1; pwd'
> BIN_DIR=/home/marco/Quantum-Espresso/qe-6.2.1/bin
> PSEUDO_DIR=/home/marco/Quantum-Espresso/qe-6.2.1/pseudo
> # Beware: everything in $TMP_DIR will be destroyed !
> TMP_DIR=/home/marco/Quantum-Espresso/qe-6.2.1/temp
>
> Then I try to run an example:
>
> qe-6.2.1-examples/PW/examples/example04/run_example
>
>
> first I changed in the example the address of environmental variables by:
>
> /home/marco/Quantum-Espresso/qe-6.2.1/environment_variables
>
> then I do
>
> ./run_example
>
>
> but the result is the following:
>
> /home/marco/Quantum-Espresso/qe-6.2.1-examples/PW/examples/example04 : 
> starting
>
> This example shows how to calculate the polarization via Berry Phase
> in PbTiO3 (contributed by the Vanderbilt Group in Rutgers University).
>
>   executables directory:
>   pseudo directory:
>   temporary directory:
>   checking that needed directories and files exist...
> ERROR: /pw.x not existent or not executable
> Aborting
>
>
> I have verified that
>
> pw.x file is in /home/marco/Quantum-Espresso/qe-6.2.1/PW/src
>
>
> It also has all permissions.
>
> I assume that pw.x was compiled by ./configure make all. Am I right?
>
> additionally I did --> make pw
>
> It seems that the executables directories are not recognized.
>
> How do I solve this problem?
>
>
> Best regards,
>
> Marco Polo
>
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