quantum-espresso/TDDFPT/Doc/INPUT_EELS.html

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<title>turbo_eels.x: input description</title>
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<a name="__top__"></a><table style="border-width: 0; table-layout: auto; width: 100%; text-align: left; vertical-align: top; background: #00395a;">
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<h1 style="margin: 10 10 10 15; text-align: left;"> Input File Description </h1>
<h2 style="margin: 10 10 10 15; text-align: left;"> Program:
turbo_eels.x / turboEELS / Quantum Espresso<span style="font-weight: normal;"> (version: 6.4)</span>
</h2>
</th></tr>
<tr><td style="padding: 10 3 3 3; background: #ffffff; color: #222222; ">
<blockquote style="margin-bottom: 2em;">
<h3>TABLE OF CONTENTS</h3>
<blockquote>
<p><a href="#idm3">INTRODUCTION</a></p>
<p><a href="#idm4">&amp;lr_input</a></p>
<blockquote>
<a href="#idm6">prefix</a> | <a href="#idm9">outdir</a> | <a href="#idm12">restart</a> | <a href="#idm15">restart_step</a> | <a href="#idm18">lr_verbosity</a> | <a href="#idm21">disk_io</a>
</blockquote>
<p><a href="#idm24">&amp;lr_control</a></p>
<blockquote>
<a href="#idm25">itermax</a> | <a href="#idm28">pseudo_hermitian</a> | <a href="#idm31">approximation</a> | <a href="#idm34">qi</a>
</blockquote>
</blockquote>
</blockquote>
<blockquote>
<a name="idm3"></a><h3>INTRODUCTION</h3>
<blockquote><pre>
Input data format: { } = optional, [ ] = it depends.
All quantities whose dimensions are not explicitly specified are in
RYDBERG ATOMIC UNITS
BEWARE: TABS, DOS &lt;CR&gt;&lt;LF&gt; CHARACTERS ARE POTENTIAL SOURCES OF TROUBLE
Comment lines in namelists can be introduced by a "!", exactly as in
fortran code. Comments lines in ``cards'' can be introduced by
either a "!" or a "#" character in the first position of a line.
Structure of the input data:
===============================================================================
&amp;lr_input
...
/
&amp;lr_control
...
/
</pre></blockquote>
</blockquote>
<a name="idm4"></a><a name="lr_input"></a><table border="0" width="100%" style="margin-bottom: 20;">
<tr><th bgcolor="#ddcba6"><h2 style="margin: 10 10 10 15; text-align: left;"> Namelist: <span class="namelist"><span style="font-weight:normal">&amp;</span>lr_input</span>
</h2></th></tr>
<tr><td style="text-align: left; background: #ffebc6; padding: 5 5 5 30; "><table style="border-color: #505087; border-style: solid; border-width: 0; margin-bottom: 10; table-layout: auto; width: 800;"><tbody><tr><td>
<p><b> This namelist is always needed !
</b></p>
<a name="idm6"></a><a name="prefix"></a><table width="100%" style="border-color: #b5b500; border-style: solid; border-width: 2; margin-bottom: 10; table-layout: auto; background-color: #FFFFFF;">
<tr>
<th align="left" valign="top" width="20%" style="background: #ffff99; padding: 2 2 2 10; ">prefix</th>
<td style="text-align: left; vertical-align: top; background: #ffffc3; padding: 2 2 2 5; ">CHARACTER</td>
</tr>
<tr>
<td style="text-align: right; vertical-align: top; background: #ffffc3; padding: 2 10 2 10; "><i>Default:</i></td>
<td style="text-align: left; vertical-align: top; background: #fff3d9; padding: 2 2 2 5; "> 'pwscf'
</td>
</tr>
<tr><td align="left" valign="top" colspan="2"><blockquote><pre style="margin-bottom: -1em;">
Sets the prefix for generated and read files. The files
generated by the ground state pw.x run must have this
same prefix.
</pre></blockquote></td></tr>
</table>
<div align="right" style="margin-bottom: 5;">[<a href="#__top__">Back to Top</a>]</div>
<a name="idm9"></a><a name="outdir"></a><table width="100%" style="border-color: #b5b500; border-style: solid; border-width: 2; margin-bottom: 10; table-layout: auto; background-color: #FFFFFF;">
<tr>
<th align="left" valign="top" width="20%" style="background: #ffff99; padding: 2 2 2 10; ">outdir</th>
<td style="text-align: left; vertical-align: top; background: #ffffc3; padding: 2 2 2 5; ">CHARACTER</td>
</tr>
<tr>
<td style="text-align: right; vertical-align: top; background: #ffffc3; padding: 2 10 2 10; "><i>Default:</i></td>
<td style="text-align: left; vertical-align: top; background: #fff3d9; padding: 2 2 2 5; "> './'
</td>
</tr>
<tr><td align="left" valign="top" colspan="2"><blockquote><pre style="margin-bottom: -1em;">
The directory that contains the run critical files, which
include the files generated by ground state pw.x run.
</pre></blockquote></td></tr>
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<div align="right" style="margin-bottom: 5;">[<a href="#__top__">Back to Top</a>]</div>
<a name="idm12"></a><a name="restart"></a><table width="100%" style="border-color: #b5b500; border-style: solid; border-width: 2; margin-bottom: 10; table-layout: auto; background-color: #FFFFFF;">
<tr>
<th align="left" valign="top" width="20%" style="background: #ffff99; padding: 2 2 2 10; ">restart</th>
<td style="text-align: left; vertical-align: top; background: #ffffc3; padding: 2 2 2 5; ">LOGICAL</td>
</tr>
<tr>
<td style="text-align: right; vertical-align: top; background: #ffffc3; padding: 2 10 2 10; "><i>Default:</i></td>
<td style="text-align: left; vertical-align: top; background: #fff3d9; padding: 2 2 2 5; "> .false.
</td>
</tr>
<tr><td align="left" valign="top" colspan="2"><blockquote><pre style="margin-bottom: -1em;">
When set to .true., turbo_eels.x will attempt to restart
from a previous interrupted calculation. (see restart_step
variable).
Beware, if set to .false. turbo_eels.x will OVERWRITE any
previous runs.
</pre></blockquote></td></tr>
</table>
<div align="right" style="margin-bottom: 5;">[<a href="#__top__">Back to Top</a>]</div>
<a name="idm15"></a><a name="restart_step"></a><table width="100%" style="border-color: #b5b500; border-style: solid; border-width: 2; margin-bottom: 10; table-layout: auto; background-color: #FFFFFF;">
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<th align="left" valign="top" width="20%" style="background: #ffff99; padding: 2 2 2 10; ">restart_step</th>
<td style="text-align: left; vertical-align: top; background: #ffffc3; padding: 2 2 2 5; ">INTEGER</td>
</tr>
<tr>
<td style="text-align: right; vertical-align: top; background: #ffffc3; padding: 2 10 2 10; "><i>Default:</i></td>
<td style="text-align: left; vertical-align: top; background: #fff3d9; padding: 2 2 2 5; "> itermax
</td>
</tr>
<tr><td align="left" valign="top" colspan="2"><blockquote><pre style="margin-bottom: -1em;">
The code writes restart files every restart_step iterations.
Restart files are automatically written at the end of
itermax Lanczos steps.
</pre></blockquote></td></tr>
</table>
<div align="right" style="margin-bottom: 5;">[<a href="#__top__">Back to Top</a>]</div>
<a name="idm18"></a><a name="lr_verbosity"></a><table width="100%" style="border-color: #b5b500; border-style: solid; border-width: 2; margin-bottom: 10; table-layout: auto; background-color: #FFFFFF;">
<tr>
<th align="left" valign="top" width="20%" style="background: #ffff99; padding: 2 2 2 10; ">lr_verbosity</th>
<td style="text-align: left; vertical-align: top; background: #ffffc3; padding: 2 2 2 5; ">INTEGER</td>
</tr>
<tr>
<td style="text-align: right; vertical-align: top; background: #ffffc3; padding: 2 10 2 10; "><i>Default:</i></td>
<td style="text-align: left; vertical-align: top; background: #fff3d9; padding: 2 2 2 5; "> 1
</td>
</tr>
<tr><td align="left" valign="top" colspan="2"><blockquote><pre style="margin-bottom: -1em;">
This integer variable controls the amount of information
written to standard output.
</pre></blockquote></td></tr>
</table>
<div align="right" style="margin-bottom: 5;">[<a href="#__top__">Back to Top</a>]</div>
<a name="idm21"></a><a name="disk_io"></a><table width="100%" style="border-color: #b5b500; border-style: solid; border-width: 2; margin-bottom: 10; table-layout: auto; background-color: #FFFFFF;">
<tr>
<th align="left" valign="top" width="20%" style="background: #ffff99; padding: 2 2 2 10; ">disk_io</th>
<td style="text-align: left; vertical-align: top; background: #ffffc3; padding: 2 2 2 5; ">CHARACTER</td>
</tr>
<tr>
<td style="text-align: right; vertical-align: top; background: #ffffc3; padding: 2 10 2 10; "><i>Default:</i></td>
<td style="text-align: left; vertical-align: top; background: #fff3d9; padding: 2 2 2 5; "> 'default'
</td>
</tr>
<tr><td align="left" valign="top" colspan="2"><blockquote><pre style="margin-bottom: -1em;">
Fine control of disk usage. Currently only 'reduced' is
supported where no restart files are written, apart from
the 'default' mode.
</pre></blockquote></td></tr>
</table>
<div align="right" style="margin-bottom: 5;">[<a href="#__top__">Back to Top</a>]</div>
</td></tr></tbody></table></td></tr>
</table>
<a name="idm24"></a><a name="lr_control"></a><table border="0" width="100%" style="margin-bottom: 20;">
<tr><th bgcolor="#ddcba6"><h2 style="margin: 10 10 10 15; text-align: left;"> Namelist: <span class="namelist"><span style="font-weight:normal">&amp;</span>lr_control</span>
</h2></th></tr>
<tr><td style="text-align: left; background: #ffebc6; padding: 5 5 5 30; "><table style="border-color: #505087; border-style: solid; border-width: 0; margin-bottom: 10; table-layout: auto; width: 800;"><tbody><tr><td>
<a name="idm25"></a><a name="itermax"></a><table width="100%" style="border-color: #b5b500; border-style: solid; border-width: 2; margin-bottom: 10; table-layout: auto; background-color: #FFFFFF;">
<tr>
<th align="left" valign="top" width="20%" style="background: #ffff99; padding: 2 2 2 10; ">itermax</th>
<td style="text-align: left; vertical-align: top; background: #ffffc3; padding: 2 2 2 5; ">INTEGER</td>
</tr>
<tr>
<td style="text-align: right; vertical-align: top; background: #ffffc3; padding: 2 10 2 10; "><i>Default:</i></td>
<td style="text-align: left; vertical-align: top; background: #fff3d9; padding: 2 2 2 5; "> 500
</td>
</tr>
<tr><td align="left" valign="top" colspan="2"><blockquote><pre style="margin-bottom: -1em;">
Number of Lanczos iterations to be performed.
</pre></blockquote></td></tr>
</table>
<div align="right" style="margin-bottom: 5;">[<a href="#__top__">Back to Top</a>]</div>
<a name="idm28"></a><a name="pseudo_hermitian"></a><table width="100%" style="border-color: #b5b500; border-style: solid; border-width: 2; margin-bottom: 10; table-layout: auto; background-color: #FFFFFF;">
<tr>
<th align="left" valign="top" width="20%" style="background: #ffff99; padding: 2 2 2 10; ">pseudo_hermitian</th>
<td style="text-align: left; vertical-align: top; background: #ffffc3; padding: 2 2 2 5; ">LOGICAL</td>
</tr>
<tr>
<td style="text-align: right; vertical-align: top; background: #ffffc3; padding: 2 10 2 10; "><i>Default:</i></td>
<td style="text-align: left; vertical-align: top; background: #fff3d9; padding: 2 2 2 5; "> .true.
</td>
</tr>
<tr><td align="left" valign="top" colspan="2"><blockquote><pre style="margin-bottom: -1em;">
When set to .true. the pseudo-Hermitian Lanczos
algorithm is used. When set to .false. the
non-Hermitian Lanczos biorthogonalization algorithm
is used (which is two times slower).
</pre></blockquote></td></tr>
</table>
<div align="right" style="margin-bottom: 5;">[<a href="#__top__">Back to Top</a>]</div>
<a name="idm31"></a><a name="approximation"></a><table width="100%" style="border-color: #b5b500; border-style: solid; border-width: 2; margin-bottom: 10; table-layout: auto; background-color: #FFFFFF;">
<tr>
<th align="left" valign="top" width="20%" style="background: #ffff99; padding: 2 2 2 10; ">approximation</th>
<td style="text-align: left; vertical-align: top; background: #ffffc3; padding: 2 2 2 5; ">CHARACTER</td>
</tr>
<tr>
<td style="text-align: right; vertical-align: top; background: #ffffc3; padding: 2 10 2 10; "><i>Default:</i></td>
<td style="text-align: left; vertical-align: top; background: #fff3d9; padding: 2 2 2 5; "> 'TDDFT'
</td>
</tr>
<tr><td align="left" valign="top" colspan="2"><blockquote><pre style="margin-bottom: -1em;">
A string describing a level of theory:
'TDDFT' - Time-Dependent Local Density Approximation or
Time-Dependent Generalized Gradient Approximation
(depending on the XC functional),
'IPA' - Independent Particle Approximation,
'RPA_with_CLFE' - Random Phase Approximation with
Crystal Local Field Effects.
</pre></blockquote></td></tr>
</table>
<div align="right" style="margin-bottom: 5;">[<a href="#__top__">Back to Top</a>]</div>
<a name="idm34"></a><a name="qi"></a><table width="100%" style="border-color: #b5b500; border-style: solid; border-width: 2; margin-bottom: 10; table-layout: auto; background-color: #FFFFFF;">
<tr>
<th align="left" valign="top" width="20%" style="background: #ffff99; padding: 2 2 2 10; ">qi</th>
<td style="text-align: left; vertical-align: top; background: #ffffc3; padding: 2 2 2 5; ">INTEGER</td>
</tr>
<tr>
<td style="text-align: right; vertical-align: top; background: #ffffc3; padding: 2 10 2 10; "><i>Default:</i></td>
<td style="text-align: left; vertical-align: top; background: #fff3d9; padding: 2 2 2 5; "> 1.0
</td>
</tr>
<tr><td align="left" valign="top" colspan="2"><blockquote><pre style="margin-bottom: -1em;">
The values of the transferred momentum
in Cartesian coordinates (i=1,2,3)
in units of 2pi/a0 (a0 = lattice parameter).
It must be specified as q1, q2, q3.
</pre></blockquote></td></tr>
</table>
<div align="right" style="margin-bottom: 5;">[<a href="#__top__">Back to Top</a>]</div>
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This file has been created by helpdoc utility on Fri Mar 01 17:57:32 CET 2019.
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