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Man Pages


Manual Reference Pages  -  MPI_FILE_GET_POSITION_SHARED (3)

NAME

MPI_File_get_position_shared - Returns the current position of the shared file pointer.

CONTENTS

Syntax
Fortran Syntax (see FORTRAN 77 NOTES)
C++ Syntax
Input Parameter
Output Parameters
Description
Fortran 77 Notes
Errors

SYNTAX

C Syntax
    #include <mpi.h>
    int MPI_File_get_position_shared(MPI_File fh, MPI_Offset *offset)

Fortran Syntax (see FORTRAN 77 NOTES)

    INCLUDE ’mpif.h’
    MPI_FILE_GET_POSITION_SHARED(FH, OFFSET, IERROR)
              INTEGER FH, IERROR
              INTEGER(KIND=MPI_OFFSET_KIND) OFFSET

C++ Syntax

#include <mpi.h>
MPI::Offset MPI::File::Get_position_shared() const

INPUT PARAMETER

fh File handle (handle).

OUTPUT PARAMETERS

offset Offset of the shared file pointer (integer).
IERROR Fortran only: Error status (integer).

DESCRIPTION

MPI_File_get_position_shared returns, in offset, the current position of the shared file pointer in etype units relative to the current displacement and file type.

FORTRAN 77 NOTES

The MPI standard prescribes portable Fortran syntax for the OFFSET argument only for Fortran 90. Sun FORTRAN 77 users may use the non-portable syntax

     INTEGER*MPI_OFFSET_KIND OFFSET

where MPI_ADDRESS_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++ 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.

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.

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1.10.2 MPI_FILE_GET_POSITION_SHARED (3) Jan 21, 2016

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