MPI_File_read_ordered_end(3) MPI-2 MPI_File_read_ordered_end(3)NAME
MPI_File_read_ordered_end - Complete a split collective read using shared file pointer
SYNOPSIS
#include "mpi.h"
int MPI_File_read_ordered_end(MPI_File fh, void *buf, MPI_Status *status)
INPUT PARAMETERS
fh - file handle (handle)
OUTPUT PARAMETERS
buf - initial address of buffer (choice)
status - status object (Status)
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.
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', 'MPI_File') are of type 'INTEGER' in Fortran.
8/31/1998 MPI_File_read_ordered_end(3)
Check Out this Related Man Page
MPI_File_read_ordered_end(3OpenMPI)MPI_File_read_ordered_end(3OpenMPI)NAME
MPI_File_read_ordered_end - Reads a file at a location specified by a shared file pointer; ending part of a split collective routine
(blocking).
SYNTAX
C Syntax
#include <mpi.h>
int MPI_File_read_ordered_end(MPI_File fh, void *buf,
MPI_Status *status)
Fortran Syntax
INCLUDE 'mpif.h'
MPI_FILE_READ_ORDERED_END(FH, BUF, STATUS, IERROR)
<type> BUF(*)
INTEGER FH, STATUS(MPI_STATUS_SIZE), IERROR
C++ Syntax
#include <mpi.h>
void MPI::File::Read_ordered_end(void* buf, MPI::Status& status)
void MPI::File::Read_ordered_end(void* buf)
INPUT /OUTPUT PARAMETER
fh File handle (handle).
OUTPUT PARAMETERS
buf Initial address of buffer (choice).
status Status object (status).
IERROR Fortran only: Error status (integer).
DESCRIPTION
MPI_File_read_ordered_end is the ending part of a split collective routine that must be called by all processes in the communicator group
associated with the file handle fh. MPI_File_rad_ordered_end blocks until the operation initiated by MPI_File_read_ordered_begin com-
pletes. It attempts to read the file associated with fh into the user's buffer buf. The shared file pointer is updated by the amounts of
data requested by all processes of the group. For each process, the location in the file at which data is read is the position at which the
shared file pointer would be after all processes whose ranks within the group are less than that of this process had read their data.
NOTES
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.
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++ func-
tions 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.
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.
Open MPI 1.2 September 2006 MPI_File_read_ordered_end(3OpenMPI)
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