MPI COMM GROUP Associated with a communicator is its group identity, or handle. In the above example, we used MPI COMM GROUP to obtain the group handle of the communicator mpi comm world. this handle can then be used as input to the routine MPl GROUP INCL to select among the processes of one group to form another(new) group MPI COMM CREaTE to create a new communicator whose members are those of the new group MPI GROUP RANK to find the current process rank's equivalent process rank in a groupMPI_COMM_GROUP • Associated with a communicator is its group identity, or handle. In the above example, we used MPI_COMM_GROUP to obtain the group handle of the communicator MPI_COMM_WORLD. This handle can then be used as input to the routine – MPI_GROUP_INCL to select among the processes of one group to form another (new) group; – MPI_COMM_CREATE to create a new communicator whose members are those of the new group; – MPI_GROUP_RANK to find the current process rank's equivalent process rank in a group