code class="computeroutput">out_values</code></span></p></td>
<td><p>A vector or pointer to storage that will be populated with the values from each process, indexed by the process ID number. If it is a vector, it will be resized accordingly. For non-root processes, this parameter may be omitted. If it is still provided, however, it will be unchanged.</p></td>
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<tr>
<td><p><span class="term"><code class="computeroutput">root</code></span></p></td>
<td><p>The process ID number that will collect the valu