Module mpi::comm

Functions

new	Creates an unitialized (on the C side) comm. Examples let comm = comm::new(); // In C MPI_Comm comm;
null	Gives MPI_COMM_NULL. Causes mpi fns to panic when null comm is given as an argument.
rank	Gets the rank of the process in the communicator. Doesn't "return" rank as a pointer like in C. Replacement for MPI_Comm_rank. Examples let rank_in_world = comm::rank(comm::world()); // In C int rank; MPI_Comm_rank(MPI_COMM_WORLD, &rank);
slf	Gives MPI_COMM_SELF. Examples let rank = comm::rank(comm::slf());
world	Gives MPI_COMM_WORLD. Examples let comm_world = comm::world(); let rank_in_world = comm::rank(world);