NAME

       MPI_Win_get_info  -   Returns  a  new  info  object  containing  the  hints  of the window
       associated with win.

SYNOPSIS

       int MPI_Win_get_info(MPI_Win win, MPI_Info *info_used)

       The current setting of all hints actually used by the system related  to  this  window  is
       returned  in info_used. If no such hints exist, a handle to a newly created info object is
       returned that contains no key/value pair. The user is responsible  for  freeing  info_used
       via MPI_Info_free .

INPUT PARAMETERS

       win    - window object (handle)

OUTPUT PARAMETERS

       info_used
              - new info argument (handle)

NOTES

       The  info  object  returned  in info_used will contain all hints currently active for this
       window. This set of hints may be greater or smaller than the set of hints  specified  when
       the  window  was  created, as the system may not recognize some hints set by the user, and
       may recognize other hints that the user has not set.

THREAD AND INTERRUPT SAFETY

       This routine is thread-safe.  This means that this routine may be safely used by  multiple
       threads  without the need for any user-provided thread locks.  However, the routine is not
       interrupt safe.  Typically, this is due to the use of memory allocation routines  such  as
       malloc or other non-MPICH runtime routines that are themselves not interrupt-safe.

NOTES FOR FORTRAN

       All  MPI  routines  in  Fortran  (except  for MPI_WTIME and MPI_WTICK ) have an additional
       argument ierr at the end of the argument list.  ierr  is  an  integer  and  has  the  same
       meaning  as  the  return  value  of  the  routine  in  C.   In  Fortran,  MPI routines are
       subroutines, and are invoked with the call statement.

       All MPI objects (e.g., MPI_Datatype , MPI_Comm ) are of type INTEGER in Fortran.

ERRORS

       All MPI routines (except MPI_Wtime and MPI_Wtick ) return an error value;  C  routines  as
       the  value of the function and Fortran routines in the last argument.  Before the value is
       returned, the current MPI error handler is called.  By default, this error handler  aborts
       the  MPI  job.   The  error  handler  may  be  changed  with  MPI_Comm_set_errhandler (for
       communicators), MPI_File_set_errhandler (for files), and MPI_Win_set_errhandler  (for  RMA
       windows).   The  MPI-1  routine  MPI_Errhandler_set may be used but its use is deprecated.
       The predefined error handler MPI_ERRORS_RETURN may be used to cause  error  values  to  be
       returned.   Note  that  MPI  does  not  guarentee that an MPI program can continue past an
       error; however, MPI implementations will attempt to continue whenever possible.

       MPI_SUCCESS
              - No error; MPI routine completed successfully.
       MPI_ERR_ARG
              - Invalid argument.  Some argument is invalid and is not identified by  a  specific
              error class (e.g., MPI_ERR_RANK ).
       MPI_ERR_WIN
              - Invalid MPI window object
       MPI_ERR_INFO
              - Invalid Info
       MPI_ERR_OTHER
              - Other error; use MPI_Error_string to get more information about this error code.

SEE ALSO

       MPI_Win_set_info

                                            11/12/2016                        MPI_Win_get_info(3)