Mpi blocking send receive jacobi

There is one blocking SEND routine for each of the four communication modes.

Names of MPI routines corresponding to each communication mode.

Communication Mode	Blocking Send Routines
Synchronous	MPI_Ssend
Buffered	MPI_Bsend
Ready	MPI_Rsend
Standard	MPI_Send

Regardless of communication mode, the send commands share the same syntax. In this section we'll take a quick look at the signature for these commands and review what the parameters mean. For a more in depth look, please refer to the MPI messages topic.

C:

int MPI_Send(void *buf, int count, MPI_Datatype datatype, int dest, int tag, MPI_Comm comm) int MPI_Recv(void *buf, int count, MPI_Datatype datatype, int source, int tag, MPI_Comm comm, MPI_Status *status)

Fortran:

MPI_SEND(buf, count, datatype, dest, tag, comm, ierror) MPI_RECV(buf, count, datatype, source, tag, comm, status, ierror)