tion</span></a>
          </h5>
<div class="blockquote"><blockquote class="blockquote">
<p>
              This algorithm has an integer parameter indicating the <span class="bold"><strong>number
              of threads</strong></span> to use in the sorting process, which always is
              the last value in the call. The default value (if left unspecified)
              is the number of HW threads of the machine where the program is running
              provided by std::thread::hardware_concurrency()