for (auto const& item : smpi_instances) {
XBT_CINFO(smpi, "Stalling SMPI instance: %s. Do all your MPI ranks call MPI_Finalize()?", item.first.c_str());
Instance instance = item.second;
for (auto const& item : smpi_instances) {
XBT_CINFO(smpi, "Stalling SMPI instance: %s. Do all your MPI ranks call MPI_Finalize()?", item.first.c_str());
Instance instance = item.second;