std::transform(begin(*comms), end(*comms), rcomms.get(),
[](const CommPtr& comm) { return static_cast<kernel::activity::CommImpl*>(comm->pimpl_.get()); });
int changed_pos = simcall_comm_waitany(rcomms.get(), comms->size(), timeout);
std::transform(begin(*comms), end(*comms), rcomms.get(),
[](const CommPtr& comm) { return static_cast<kernel::activity::CommImpl*>(comm->pimpl_.get()); });
int changed_pos = simcall_comm_waitany(rcomms.get(), comms->size(), timeout);