<h2>Restart, fix_modify, output, run start/stop, minimize info<aclass="headerlink"href="#restart-fix-modify-output-run-start-stop-minimize-info"title="Permalink to this headline">¶</a></h2>
<p>This fix writes the current status of the colvars module into
<aclass="reference internal"href="restart.html"><em>binary restart files</em></a>. This is in addition to the text
mode status file that is written by the colvars module itself and the
kind of information in both files is identical.</p>
<p>The <aclass="reference internal"href="fix_modify.html"><em>fix_modify</em></a><em>energy</em> option is supported by this
fix to add the energy change from the biasing force added by the fix
to the system’s potential energy as part of <aclass="reference internal"href="thermo_style.html"><em>thermodynamic output</em></a>.</p>
<p>This fix computes a global scalar which can be accessed by various
<aclass="reference internal"href="Section_howto.html#howto-15"><span>output commands</span></a>. The scalar is the
cummulative energy change due to this fix. The scalar value
calculated by this fix is “extensive”.</p>
</div>
<divclass="section"id="restrictions">
<h2>Restrictions<aclass="headerlink"href="#restrictions"title="Permalink to this headline">¶</a></h2>
<p>This fix is part of the USER-COLVARS package. It is only enabled if
LAMMPS was built with that package. See the <aclass="reference internal"href="Section_start.html#start-3"><span>Making LAMMPS</span></a> section for more info.</p>
<p>There can only be one colvars fix active at a time. Since the interface
communicates only the minimum amount of information and colvars module
itself can handle an arbitrary number of collective variables, this is
not a limitation of functionality.</p>
</div>
<divclass="section"id="related-commands">
<h2>Related commands<aclass="headerlink"href="#related-commands"title="Permalink to this headline">¶</a></h2>
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