ERT - Ensemble based Reservoir Tool - is designed for running ensembles of dynamical models such as reservoir models, in order to do sensitivity analysis and data assimilation. ERT supports data assimilation using the Ensemble Smoother (ES), Ensemble Smoother with Multiple Data Assimilation (ES-MDA) and Iterative Ensemble Smoother (IES).
Maybe there is no need to use extra ws connection to signal checksum. https://github.com/equinor/ert/blob/90998f2feeca8c1a41793fe4dfddbb9142b8268e/src/ert/scheduler/scheduler.py#L208