});
simgrid::s4u::Exec::on_completion.connect([this](simgrid::s4u::Actor const&, simgrid::s4u::Exec const& activity) {
// For more than one host (not yet supported), we can access the host via
});
simgrid::s4u::Exec::on_completion.connect([this](simgrid::s4u::Actor const&, simgrid::s4u::Exec const& activity) {
// For more than one host (not yet supported), we can access the host via