
Performance[6]: 40i 3.802ips 0.842e 15.280u 0:02.630
Performance[7]: 40i 4.274ips 0.857e 15.540u 0:02.340
Performance[8]: 40i 4.831ips 0.872e 15.680u 0:02.070</samp></pre>
<p>Better performance correlates with higher values of IPS (iterations-per-second).  In our example, 8 cores are optimal.  However, in certain cases it might be optimal to set the number of threads to 1 (e.g. <samp>-limit thread 1</samp>) or to disable OpenMP completely.  To disable this feature, add <samp>--disable-openmp</samp> to your