Version 1.13 has support for the following MPI2 routines:
mpi_comm_spawn - Spawns additional MPI tasks
mpi_comm_get_parent - Returns the communicator associated with the parent for a newly spawned task
mpi_comm_free - Returns a communicator associated with spawned tasks.
mpi_intercomm_merge - Returns an intracommuncator from an intercommunicator
mpi_open_port - Establish a port at which an application may be contacted
mpi_close_port - Releases the network address represented by port_name
mpi_comm_accept - Accept connections from clients
mpi_comm_connect - Establishes communication with a server specified by port_name
mpi_comm_disconnect - Terminates communication with a server specified by a communicator
mpi_comm_set_errhandler - Sets the behavior if an MPI error occurs using the given communicator