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<div class="section" id="fix-temp-rescale-eff-command">
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<span id="index-0"></span><h1>fix temp/rescale/eff command</h1>
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<div class="section" id="syntax">
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<h2>Syntax</h2>
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<div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">fix</span> <span class="n">ID</span> <span class="n">group</span><span class="o">-</span><span class="n">ID</span> <span class="n">temp</span><span class="o">/</span><span class="n">rescale</span><span class="o">/</span><span class="n">eff</span> <span class="n">N</span> <span class="n">Tstart</span> <span class="n">Tstop</span> <span class="n">window</span> <span class="n">fraction</span>
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</pre></div>
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</div>
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<ul class="simple">
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<li>ID, group-ID are documented in <a class="reference internal" href="fix.html"><span class="doc">fix</span></a> command</li>
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<li>temp/rescale/eff = style name of this fix command</li>
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<li>N = perform rescaling every N steps</li>
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<li>Tstart,Tstop = desired temperature at start/end of run (temperature units)</li>
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<li>window = only rescale if temperature is outside this window (temperature units)</li>
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<li>fraction = rescale to target temperature by this fraction</li>
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</ul>
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</div>
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<div class="section" id="examples">
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<h2>Examples</h2>
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<div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">fix</span> <span class="mi">3</span> <span class="n">flow</span> <span class="n">temp</span><span class="o">/</span><span class="n">rescale</span><span class="o">/</span><span class="n">eff</span> <span class="mi">10</span> <span class="mf">1.0</span> <span class="mf">100.0</span> <span class="mf">0.02</span> <span class="mf">1.0</span>
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</pre></div>
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</div>
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</div>
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<div class="section" id="description">
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<h2>Description</h2>
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<p>Reset the temperature of a group of nuclei and electrons in the
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<a class="reference internal" href="pair_eff.html"><span class="doc">electron force field</span></a> model by explicitly rescaling
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their velocities.</p>
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<p>The operation of this fix is exactly like that described by the <a class="reference internal" href="fix_temp_rescale.html"><span class="doc">fix temp/rescale</span></a> command, except that the rescaling
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is also applied to the radial electron velocity for electron
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particles.</p>
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</div>
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<div class="section" id="restart-fix-modify-output-run-start-stop-minimize-info">
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<h2>Restart, fix_modify, output, run start/stop, minimize info</h2>
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<p>No information about this fix is written to <a class="reference internal" href="restart.html"><span class="doc">binary restart files</span></a>.</p>
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<p>The <a class="reference internal" href="fix_modify.html"><span class="doc">fix_modify</span></a> <em>temp</em> option is supported by this
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fix. You can use it to assign a temperature <a class="reference internal" href="compute.html"><span class="doc">compute</span></a>
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you have defined to this fix which will be used in its thermostatting
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procedure, as described above. For consistency, the group used by
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this fix and by the compute should be the same.</p>
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<p>The <a class="reference internal" href="fix_modify.html"><span class="doc">fix_modify</span></a> <em>energy</em> option is supported by this
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fix to add the energy change implied by a velocity rescaling to the
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system’s potential energy as part of <a class="reference internal" href="thermo_style.html"><span class="doc">thermodynamic output</span></a>.</p>
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<p>This fix computes a global scalar which can be accessed by various
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<a class="reference internal" href="Section_howto.html#howto-15"><span class="std std-ref">output commands</span></a>. The scalar is the
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cummulative energy change due to this fix. The scalar value
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calculated by this fix is “extensive”.</p>
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<p>This fix can ramp its target temperature over multiple runs, using the
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<em>start</em> and <em>stop</em> keywords of the <a class="reference internal" href="run.html"><span class="doc">run</span></a> command. See the
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<a class="reference internal" href="run.html"><span class="doc">run</span></a> command for details of how to do this.</p>
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<p>This fix is not invoked during <a class="reference internal" href="minimize.html"><span class="doc">energy minimization</span></a>.</p>
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</div>
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<div class="section" id="restrictions">
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<h2>Restrictions</h2>
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<p>This fix is part of the USER-EFF package. It is only enabled if
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LAMMPS was built with that package. See the <a class="reference internal" href="Section_start.html#start-3"><span class="std std-ref">Making LAMMPS</span></a> section for more info.</p>
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</div>
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<div class="section" id="related-commands">
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<h2>Related commands</h2>
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<p><a class="reference internal" href="fix_langevin_eff.html"><span class="doc">fix langevin/eff</span></a>, <a class="reference internal" href="fix_nh_eff.html"><span class="doc">fix nvt/eff</span></a>, <a class="reference internal" href="fix_modify.html"><span class="doc">fix_modify</span></a>,
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<a class="reference internal" href="fix_temp_rescale.html"><span class="doc">fix temp rescale</span></a>,</p>
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<p><strong>Default:</strong> none</p>
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