OpenMP Load Balance Efficiency

OpenMP Load Balance Efficiency reveals the inefficiency in OpenMP parallel regions caused by imbalance and can be computed as follows:

$\begin{eqnarray*}OpenMP\; Load\; Balance\; Efficiency=\frac{avg(computation\; time\; in\; OpenMP)}{max(computation\; time\; in\; OpenMP)} \end{eqnarray*}$

This metric computed per MPI rank and average across MPIs is shown. Moreover, MIN and MAX values are also available by click on metric bar. Statistics shows if there is considerable difference in workload across MPI ranks.