MPI Serialization Efficiency

The MPI Serialisation Efficiency (MPI SE) describes any loss of efficiency due to dependencies between processes causing alternating processes to wait.

It is expressed as:

\[MPI\_SE = \frac{Max(OutMPI_{1,1}, \cdots, OutMPI_{P,1})}{IdealRuntime}\]

In order to fully understand the formulas, you may also visit the glossary of the metrics terms.