1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
.. _mpi_file_get_atomicity:
MPI_File_get_atomicity
======================
.. include_body
:ref:`MPI_File_get_atomicity` |mdash| Returns current consistency semantics for
data-access operations.
SYNTAX
------
C Syntax
^^^^^^^^
.. code-block:: c
#include <mpi.h>
int MPI_File_get_atomicity(MPI_File fh, int *flag)
Fortran Syntax
^^^^^^^^^^^^^^
.. code-block:: fortran
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_FILE_GET_ATOMICITY(FH, FLAG, IERROR)
INTEGER FH, IERROR
LOGICAL FLAG
Fortran 2008 Syntax
^^^^^^^^^^^^^^^^^^^
.. code-block:: fortran
USE mpi_f08
MPI_File_get_atomicity(fh, flag, ierror)
TYPE(MPI_File), INTENT(IN) :: fh
LOGICAL, INTENT(OUT) :: flag
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
INPUT PARAMETER
---------------
* ``fh``: File handle (handle).
OUTPUT PARAMETER
----------------
* ``flag``: true if atomic mode is enabled, false if nonatomic mode is enabled (boolean).
* ``ierror``: Fortran only: Error status (integer).
DESCRIPTION
-----------
:ref:`MPI_File_get_atomicity` returns the current consistency semantics for
data access operations on the set of file handles created by one
collective :ref:`MPI_File_open`. If *flag* is *true,* atomic mode is currently
enabled; if *flag* is *false,* nonatomic mode is currently enabled.
ERRORS
------
.. include:: ./ERRORS.rst
|
