# Input File Description

## Program: importexport_binary.x / PWscf / Quantum ESPRESSO (version: 7.2)

> ### TABLE OF CONTENTS

> > INTRODUCTION

> > &INPUTPP

> > > prefix | outdir | direction | newoutdir

> > Notes

> > > Important !

> ### INTRODUCTION

> >     Purpose of importexport_binary.x:
> >         convert the binary file for the charge density (and
> >         for the spin polarization) from the native binary
> >         format, that is not machine-independent, to a text-only
> >         XML format ("export" phase), and import it back to
> >         binary for restarting.

> >     Structure of the input data:
> >     ============================

> >        &INPUTPP
> >          prefix = '...'
> >          ...
> >        /

## Namelist: &INPUTPP

prefix | CHARACTER
Default: | 'pwscf'

>     prefix of input file produced by pw.x
>     (wavefunctions are not needed)

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outdir | CHARACTER
Default: | value of the `ESPRESSO_TMPDIR` environment variable if set; current directory ('./') otherwise

>     directory containing the input data, i.e. the same as in pw.x

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direction | CHARACTER
Default: | 'export'

>     Selects the direction:

> `'export' :`

>       for converting the charge density from the
>       native binary format to text XML format

> `'import' :`

>       for converting a previously exported folder
>       from text XML format to binary format

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newoutdir | CHARACTER
Default: | `'./import'` if the direction is `'import',` `'./export'` if the direction is `'export'`

>     directory into which the export data is going to be
>     generated; after the 'import' phase, it can be then used as
>     the outdir to restart for instance a pw.x NSCF calculation

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> ### Notes

> > #### Important !

> > >     The utility will also expect to find, and copy, the
> > >     outdir/data-file.xml and the *.UPF pseudopotential files in the
> > >     prefix.save subdirectory, and will copy them from the outdir
> > >     to the newoutdir. It will then convert the charge density and
> > >     spin polarization files in the correct format. Other files,
> > >     in particular wavefunctions and the band structure (files
> > >     eigenvals.xml in the K????? subfolder) are ignored and not
> > >     copied.

> > >     If you need also these files, please copy them by hand (they
> > >     are anyway already in text XML format).

> > >     Note that while a NSCF calculation does not need the
> > >     band structure files, many other codes (in particular the
> > >     post-processing ones) may need them.

This file has been created by helpdoc utility on Sat Mar 18 15:50:16 CET 2023.