| 1 |
call MPI_RECV(
-
IN start_of_buffer Address of place to store data(address is INput
-
values of data are of course output starting at this adddress!)
-
IN buffer_len Maximum number of items allowed
-
IN datatype Type of each data type
-
IN source_rank Processor number (rank) of source
-
IN tag only accept messages with this tag value
-
IN communicator Communicator of both sender and receiver group
-
OUT return_status Data structure describing what happened!
-
OUT error_message) Error Flag (absent in C)
|
| 2 |
Note that return_status is used after completion of receive to find actual received length (buffer_len is a MAXIMUM), actual source processor rank and actual message tag
|
| 3 |
In C syntax is
|
| 4 |
int error_message=MPI_Recv(void *start_of_buffer,int buffer_len, MPI_DATATYPE datatype, int source_rank, int tag, MPI_Comm communicator, MPI_Status *return_status)
|
Secs 70.5