 is recommended to set the warmup
carefully and iter higher than expected so it runs through
duration. This usually results in chains with different
lengths, so the minimum is taken across them all.</p></dd>


<dt id="arg-cores">cores<a class="anchor" aria-label="anchor" href="#arg-cores"></a></dt>
<dd><p>The number of cores to use for parallel
execution. Default is number available in the system minus
1. If <code>cores=1</code>, serial execution occurs (even if
<code>chains&gt;1</code>), otherwis