int HPL_send( double * SBUF, int SCOUNT, int DEST, int STAG, MPI_Comm COMM );
HPL_send is a simple wrapper around MPI_Send. Its main purpose is to allow for some experimentation / tuning of this simple routine. Successful completion is indicated by the returned error code MPI_SUCCESS. In the case of messages of length less than or equal to zero, this function returns immediately.
- SBUF (local input) double *
On entry, SBUF specifies the starting address of buffer to be sent.
- SCOUNT (local input) int
On entry, SCOUNT specifies the number of double precision entries in SBUF. SCOUNT must be at least zero.
- DEST (local input) int
On entry, DEST specifies the rank of the receiving process in the communication space defined by COMM.
- STAG (local input) int
On entry, STAG specifies the message tag to be used for this communication operation.
- COMM (local input) MPI_Comm
The MPI communicator identifying the communication space.
HPL_recv (3), HPL_sendrecv (3).