MPI_Irecv
Begins a nonblocking receive
Synopsis
int MPI_Irecv(void *buf, int count, MPI_Datatype datatype, int source,
int tag, MPI_Comm comm, MPI_Request *request)
Input Parameters
- buf
- initial address of receive buffer (choice)
- count
- number of elements in receive buffer (integer)
- datatype
- datatype of each receive buffer element (handle)
- source
- rank of source (integer)
- tag
- message tag (integer)
- comm
- communicator (handle)
Output Parameter
- request
- communication request (handle)
Notes for Fortran
All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK) have
an additional argument ierr at the end of the argument list. ierr
is an integer and has the same meaning as the return value of the routine
in C. In Fortran, MPI routines are subroutines, and are invoked with the
call statement.
All MPI objects (e.g., MPI_Datatype, MPI_Comm) are of type INTEGER
in Fortran.
Location:irecv.c