Mpi_sendrecv

MPI_Sendrecv(void *sendbuf, int sendcount, MPI_Datatype sendtype,
             int dest,int sendtag, void *recvbuf, int recvcount,
             MPI_Datatype recvtype, int source, int recvtag,
             MPI_Comm comm, MPI_Status *status);
Real Raccoon