Synopsis
int MPI_Comm_attach_buffer(MPI_Comm comm, void *buffer, int size)int MPI_Comm_attach_buffer_c(MPI_Comm comm, void *buffer, MPI_Count size)Input Parameters
- comm
-
communicator (handle)
- buffer
-
initial buffer address (choice)
- size
-
buffer size, in bytes (non-negative integer)
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.
Errors
All MPI routines (except 'MPI_Wtime' and 'MPI_Wtick') return an error value;
C routines as the value of the function and Fortran routines in the last
argument. Before the value is returned, the current MPI error handler is
called. By default, this error handler aborts the MPI job. The error handler
may be changed with 'MPI_Comm_set_errhandler' (for communicators),
'MPI_File_set_errhandler' (for files), and 'MPI_Win_set_errhandler' (for
RMA windows). The MPI-1 routine 'MPI_Errhandler_set' may be used but
its use is deprecated. The predefined error handler
'MPI_ERRORS_RETURN' may be used to cause error values to be returned.
Note that MPI does not guarantee that an MPI program can continue past
an error; however, MPI implementations will attempt to continue whenever
possible.
-
MPI_SUCCESS - No error; MPI routine completed successfully.
-
MPI_ERR_ARG - Invalid argument. Some argument is invalid and is not identified by a specific error class (e.g., 'MPI_ERR_RANK').
-
MPI_ERR_COMM - Invalid communicator. A common error is to use a null communicator in a call (not even allowed in 'MPI_Comm_rank').
-
MPI_ERR_OTHER - Other error; use 'MPI_Error_string' to get more information about this error code.