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<td><p><span class="term"><code class="computeroutput">comm</code></span></p></td>
<td><p>The communicator over which the reduction will occur.</p></td>
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<td><p><span class="term"><code class="computeroutput">in_value</code></span></p></td>
<td><p>The local value to be combined with the local values of every other process. For reducing arrays, <code class="computeroutput">in_values</code> contains a pointer to the local values. In this case, <code class="computeroutput">n</co