Cube GUI User Guide  (CubeGUI 4.8.2, revision 7895e762)
Introduction in Cube GUI and its usage

OpenMP Region Efficiency

OpenMP Region Efficiency indicates inefficiencies within threads, and can be computed as follows:

\begin{eqnarray*}OpenMP\; Region\; Efficiency=\frac{max(runtime) - avg(time\; in\; OpenMP) + avg(time\; in\; useful\; computation\; within\; OpenMP)}{max(runtime)} \end{eqnarray*}

Where average time in OpenMP is computed as weighted arithmetic mean. If number of threads is equal across processes average time in OpenMP can be computed as ordinary arithmetic mean.


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