er</span></span>
<span><span class="fu">parallel</span><span class="fu">::</span><span class="fu"><a href="https://rdrr.io/r/parallel/makeCluster.html" class="external-link">stopCluster</a></span><span class="op">(</span>cl <span class="op">=</span> <span class="va">my.cluster</span><span class="op">)</span></span></code></pre>
<p>The system works as follows: If <code>cluster</code> is not <code>NULL</code> and <code>model</code> is provided, the function looks into the model. If there is a cluster definiti