MPIFilegetatomicity(3OpenMPI) MPIFilegetatomicity(3OpenMPI)

NAME
       MMPPIIFFiilleeggeettaattoommiicciittyy  -  Returns  current  consistency  semantics for
       data-access operations.


SSYYNNTTAAXX
       C Syntax
           #include 
           int MPIFilegetatomicity(MPIFile fh, int *flag)

       Fortran Syntax
           INCLUDE 'mpif.h'
           MPIFILEGETATOMICITY(FH, FLAG, IERROR)
            INTEGER FH, IERROR
            LOGICAL FLAG


CC++++ SSyynnttaaxx
       #include 
       bool MPI::File::Getatomicity() const


IINNPPUUTT PPAARRAAMMEETTEERR
       fh        File handle (handle).


OOUUTTPPUUTT PPAARRAAMMEETTEERR
       flag      true if atomic mode is enabled, false if  nonatomic  mode  is
                 enabled (boolean).

       IERROR    Fortran only: Error status (integer).


DESCRIPTION
       MPIFilegetatomicity  returns  the  current consistency semantics for
       data access operations on the set of file handles created by  one  col-
       lective  MPIFileopen.  If  flag  is  true,  atomic  mode is currently
       enabled; if flag is false, nonatomic mode is currently enabled.


EERRRROORRSS
       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::ERRORSTHROWEXCEPTIONS, 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  MPIERRORSRETURN.  The  error  handler   may   be   changed   with
       MPIFileseterrhandler;      the      predefined     error     handler
       MPIERRORSAREFATAL 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 2006MPIFilegetatomicity(3OpenMPI)