# MPI Transfer Efficiency

The MPI Transfer Efficiency (MPI TE) measures inefficiencies due to time in data transfer.

It is expressed in terms of the MPI Communication Efficiency (MPI CE) and MPI Serialization Efficiency (MPI SE):

$MPI\_TE = \frac{MPI\_CE}{MPI\_SE}$

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