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<li class="toctree-l2"><a class="reference internal" href="dump_modify.html#dump-modify-command-for-image-movie-options"><span class="xref std std-doc">dump_modify</span> command for image/movie options</a></li>
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<p><span class="math notranslate nohighlight">\(\renewcommand{\AA}{\text{Å}}\)</span></p>
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<section id="dump-atom-adios-command">
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<span id="index-1"></span><span id="index-0"></span><h1>dump atom/adios command<a class="headerlink" href="#dump-atom-adios-command" title="Link to this heading"></a></h1>
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</section>
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<section id="dump-custom-adios-command">
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<h1>dump custom/adios command<a class="headerlink" href="#dump-custom-adios-command" title="Link to this heading"></a></h1>
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<section id="syntax">
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<h2>Syntax<a class="headerlink" href="#syntax" title="Link to this heading"></a></h2>
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<div class="highlight-LAMMPS notranslate"><div class="highlight"><pre><span></span><span class="k">dump </span><span class="nv nv-Identifier">ID</span><span class="w"> </span><span class="nv nv-Identifier">group-ID</span><span class="w"> </span><span class="n">atom</span><span class="o">/</span><span class="n">adios</span><span class="w"> </span><span class="n">N</span><span class="w"> </span><span class="n">file.bp</span>
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<span class="k">dump </span><span class="nv nv-Identifier">ID</span><span class="w"> </span><span class="nv nv-Identifier">group-ID</span><span class="w"> </span><span class="n">custom</span><span class="o">/</span><span class="n">adios</span><span class="w"> </span><span class="n">N</span><span class="w"> </span><span class="n">file.bp</span><span class="w"> </span><span class="n">args</span>
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</pre></div>
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</div>
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<ul class="simple">
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<li><p>ID = user-assigned name for the dump</p></li>
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<li><p>group-ID = ID of the group of atoms to be imaged</p></li>
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<li><p>adios = style of dump command (other styles <em>atom</em> or <em>cfg</em> or <em>dcd</em> or <em>xtc</em> or <em>xyz</em> or <em>local</em> or <em>custom</em> are discussed on the <a class="reference internal" href="dump.html"><span class="doc">dump</span></a> doc page)</p></li>
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<li><p>N = dump every this many timesteps</p></li>
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<li><p>file.bp = name of file/stream to write to</p></li>
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<li><p>args = same options as in <a class="reference internal" href="dump.html"><span class="doc">dump custom</span></a> command</p></li>
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</ul>
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</section>
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<section id="examples">
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<h2>Examples<a class="headerlink" href="#examples" title="Link to this heading"></a></h2>
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<div class="highlight-LAMMPS notranslate"><div class="highlight"><pre><span></span><span class="k">dump </span><span class="nv nv-Identifier">adios1</span><span class="w"> </span><span class="nv nv-Identifier">all</span><span class="w"> </span><span class="n">atom</span><span class="o">/</span><span class="n">adios</span><span class="w"> </span><span class="m">100</span><span class="w"> </span><span class="n">atoms.bp</span>
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<span class="k">dump </span><span class="nv nv-Identifier">4a</span><span class="w"> </span><span class="nv nv-Identifier">all</span><span class="w"> </span><span class="n">custom</span><span class="o">/</span><span class="n">adios</span><span class="w"> </span><span class="m">100</span><span class="w"> </span><span class="n">dump_adios.bp</span><span class="w"> </span><span class="n">id</span><span class="w"> </span><span class="n">v_p</span><span class="w"> </span><span class="n">x</span><span class="w"> </span><span class="n">y</span><span class="w"> </span><span class="n">z</span>
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<span class="k">dump </span><span class="nv nv-Identifier">2</span><span class="w"> </span><span class="nv nv-Identifier">subgroup</span><span class="w"> </span><span class="n">custom</span><span class="o">/</span><span class="n">adios</span><span class="w"> </span><span class="m">100</span><span class="w"> </span><span class="n">dump_adios.bp</span><span class="w"> </span><span class="n">mass</span><span class="w"> </span><span class="n">type</span><span class="w"> </span><span class="n">xs</span><span class="w"> </span><span class="n">ys</span><span class="w"> </span><span class="n">zs</span><span class="w"> </span><span class="n">vx</span><span class="w"> </span><span class="n">vy</span><span class="w"> </span><span class="n">vz</span>
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</pre></div>
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</div>
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</section>
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<section id="description">
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<h2>Description<a class="headerlink" href="#description" title="Link to this heading"></a></h2>
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<p>Dump a snapshot of atom coordinates every <span class="math notranslate nohighlight">\(N\)</span> timesteps in the <a class="reference external" href="https://github.com/ornladios/ADIOS2">ADIOS</a>-based “BP” file format, or using different I/O solutions in
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ADIOS, to a stream that can be read on-line by another program.
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ADIOS-BP files are binary, portable, and self-describing.</p>
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<div class="admonition note">
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<p class="admonition-title">Note</p>
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<p>To be able to use ADIOS, a file <code class="docutils literal notranslate"><span class="pre">adios2_config.xml</span></code> with specific
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configuration settings is expected in the current working directory.
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If the file is not present, LAMMPS will try to create a minimal
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default file. Please refer to the ADIOS documentation for details on
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how to adjust this file for optimal performance and desired features.</p>
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</div>
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<p><strong>Use from write_dump:</strong></p>
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<p>It is possible to use these dump styles with the
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<a class="reference internal" href="write_dump.html"><span class="doc">write_dump</span></a> command. In this case, the sub-intervals
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must not be set at all. The write_dump command can be used to
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create a new file at each individual dump.</p>
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<div class="highlight-LAMMPS notranslate"><div class="highlight"><pre><span></span><span class="k">dump </span><span class="nv nv-Identifier">4</span><span class="w"> </span><span class="nv nv-Identifier">all</span><span class="w"> </span><span class="n">atom</span><span class="o">/</span><span class="n">adios</span><span class="w"> </span><span class="m">100</span><span class="w"> </span><span class="n">dump.bp</span>
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<span class="k">write_dump </span><span class="nv nv-Identifier">all</span><span class="w"> </span><span class="n">atom</span><span class="o">/</span><span class="n">adios</span><span class="w"> </span><span class="n">singledump.bp</span>
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</pre></div>
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</div>
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</section>
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<hr class="docutils" />
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<section id="restrictions">
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<h2>Restrictions<a class="headerlink" href="#restrictions" title="Link to this heading"></a></h2>
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<p>The number of atoms per snapshot <strong>can</strong> change with the adios style.
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When using the ADIOS tool ‘bpls’ to list the content of a .bp file,
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bpls will print <em>__</em> for the size of the output table indicating that
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its size is changing every step.</p>
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<p>The <em>atom/adios</em> and <em>custom/adios</em> dump styles are part of the ADIOS
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package. They are only enabled if LAMMPS was built with that package.
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See the <a class="reference internal" href="Build_package.html"><span class="doc">Build package</span></a> page for more info.</p>
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</section>
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<hr class="docutils" />
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<section id="related-commands">
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<h2>Related commands<a class="headerlink" href="#related-commands" title="Link to this heading"></a></h2>
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<p><a class="reference internal" href="dump.html"><span class="doc">dump</span></a>, <a class="reference internal" href="dump_modify.html"><span class="doc">dump_modify</span></a>, <a class="reference internal" href="undump.html"><span class="doc">undump</span></a></p>
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