+MPI_Group smpi_group_copy(MPI_Group origin)
+{
+ MPI_Group group=origin;
+ int i, count;
+ if(origin!= smpi_comm_group(MPI_COMM_WORLD)
+ && origin != MPI_GROUP_NULL
+ && origin != smpi_comm_group(MPI_COMM_SELF)
+ && origin != MPI_GROUP_EMPTY)
+ {
+ count = smpi_process_count();
+ group = xbt_new(s_smpi_mpi_group_t, 1);
+ group->size = origin->size;
+ group->rank_to_index_map = xbt_new(int, group->size);
+ group->index_to_rank_map = xbt_new(int, count);
+ group->refcount = 1;
+ for (i = 0; i < group->size; i++) {
+ group->rank_to_index_map[i] = origin->rank_to_index_map[i];
+ }
+ for (i = 0; i < count; i++) {
+ group->index_to_rank_map[i] = origin->index_to_rank_map[i];
+ }
+ }
+
+ return group;
+}
+
+