MPI_File_get_position_shared(3) man page (version 4.0.7)

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Name

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

Syntax

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

Fortran Syntax (see FORTRAN 77 NOTES)

USE MPI
! or the older form: INCLUDE ’mpif.h’
MPI_FILE_GET_POSITION_SHARED(FH, OFFSET, IERROR)
 INTEGER FH, IERROR
 INTEGER(KIND=MPI_OFFSET_KIND) OFFSET

Fortran 2008 Syntax

USE mpi_f08
MPI_File_get_position_shared(fh, offset, ierror)
 TYPE(MPI_File), INTENT(IN) :: fh
 INTEGER(KIND=MPI_OFFSET_KIND), INTENT(OUT) :: offset
 INTEGER, OPTIONAL, INTENT(OUT) :: ierror

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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Table of Contents

• Name
• Syntax
• C Syntax
• Fortran Syntax (see FORTRAN 77 NOTES)
• Fortran 2008 Syntax
• Input Parameter
• Output Parameters
• Description
• Fortran 77 Notes
• Errors

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Page last modified: 16-Nov-2021
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