-using simgrid::s4u::ActorPtr;
-
-Group::Group()
-{
- size_ = 0; /* size */
- refcount_ = 1; /* refcount_: start > 0 so that this group never gets freed */
-}
-
-Group::Group(int n) : size_(n), rank_to_actor_map_(size_, nullptr), rank_to_index_map_(size_, MPI_UNDEFINED), index_to_rank_map_(size_, MPI_UNDEFINED)
-{
- refcount_ = 1;
-}
-
-Group::Group(MPI_Group origin)