MPI_File_get_view(3) Open MPI MPI_File_get_view(3)NAMEMPI_File_get_view - Returns the process's view of data in the file.
SYNTAX
C Syntax
#include <mpi.h>
int MPI_File_get_view(MPI_File fh, MPI_Offset *disp,
MPI_Datatype *etype, MPI_Datatype *filetype,
char *datarep)
Fortran Syntax (see FORTRAN 77 NOTES)
INCLUDE 'mpif.h'
MPI_FILE_GET_VIEW(FH, DISP, ETYPE,
FILETYPE, DATAREP, IERROR)
INTEGER FH, ETYPE, FILETYPE, IERROR
CHARACTER*(*) DATAREP
INTEGER(KIND=MPI_OFFSET_KIND) DISP
C++ Syntax
#include <mpi.h>
void MPI::File::Get_view(MPI::Offset& disp,
MPI::Datatype& etype,
MPI::Datatype& filetype, char* datarep) const
INPUT PARAMETER
fh File handle (handle).
OUTPUT PARAMETERS
disp Displacement (integer).
etype Elementary data type (handle).
filetype File type (handle). See Restrictions, below.
datarep Data representation (string).
IERROR Fortran only: Error status (integer).
DESCRIPTION
The MPI_File_get_view routine returns the process's view of the data in
the file. The current values of the displacement, etype, and filetype
are returned in disp, etype, and filetype, respectively.
The MPI_File_get_view interface allows the user to pass a data-repre‐
sentation string via the datarep argument.
FORTRAN 77 NOTES
The MPI standard prescribes portable Fortran syntax for the DISP argu‐
ment only for Fortran 90. FORTRAN 77 users may use the non-portable
syntax.
INTEGER*MPI_OFFSET_KIND DISP
where MPI_OFFSET_KIND is a constant defined in mpif.h and gives the
length of the declared integer in bytes.
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.
1.7.4 Feb 04, 2014 MPI_File_get_view(3)
