mpi_file_write_at_all_end.3

MPI stands for the Message Passing Interface. Written by the MPI Forum (a large committee comprising

.\"Copyright 2006, Sun Microsystems, Inc.
.\" Copyright (c) 1996 Thinking Machines Corporation
.TH MPI_File_write_at_all_end 3OpenMPI "September 2006" "Open MPI 1.2" " "
.SH NAME
\fBMPI_File_write_at_all_end\fP \- Writes a file at explicitly specified offsets; ending part of a split collective routine (blocking).

.SH SYNTAX
.ft R
.nf
C Syntax
    #include <mpi.h>
    int MPI_File_write_at_all_end(MPI_File \fIfh\fP, void *buf, 
    	      MPI_Status *status)

Fortran Syntax
    INCLUDE 'mpif.h'
    MPI_FILE_WRITE_AT_ALL_END(\fIFH\fP, \fIBUF\fP, \fISTATUS\fP,\fI IERROR\fP)
		<type>		BUF(*)
        	INTEGER		FH, STATUS(MPI_STATUS_SIZE), IERROR

.SH C++ Syntax
.nf
#include <mpi.h>
void MPI::File::Write_at_all_end(const void* \fIbuf\fP, MPI::Status& \fIstatus\fP)

void MPI::File::Write_at_all_end(const void* \fIbuf\fP)

.SH INPUT/OUTPUT PARAMETER
.ft R
.TP 1i
fh
File handle (handle).

.SH INPUT PARAMETER
.ft R
.TP 1i
buf
Initial address of buffer (choice).

.SH OUTPUT PARAMETERS
.ft R
.TP 1i
status
Status object (status). 
.TP 1i
IERROR
Fortran only: Error status (integer). 

.SH DESCRIPTION
.ft R
MPI_File_write_at_all_end is the ending part of a split collective routine that stores the
number of elements actually written into the file associated with 
.I fh
in
.I status. 
The data is written into those parts of the
file specified by the current view. All other fields of 
.I status 
are undefined.

.SH NOTES
.ft R
All the nonblocking collective routines for data access are "split" into two routines, each with _begin or _end as a suffix. These split collective routines are subject to the semantic rules described in Section 9.4.5 of the MPI-2 standard. 

.SH ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI:Exception object.
.sp
Before the error value is returned, the current MPI error handler is
called. For MPI I/O function errors, the default error handler is set to MPI_ERRORS_RETURN. The error handler may be changed with MPI_File_set_errhandler; the predefined error handler MPI_ERRORS_ARE_FATAL may be used to make I/O errors fatal. Note that MPI does not guarantee that an MPI program can continue past an error.  

' @(#)MPI_File_write_at_all_end.3 1.20 06/03/09