NAME

       MPI_Win_create_dynamic -  Create an MPI Window object for one-sided communication

SYNOPSIS

       int MPI_Win_create_dynamic(MPI_Info info, MPI_Comm comm, MPI_Win *win)

INPUT PARAMETERS

       info   - info argument (handle)
       comm   - intra-communicator (handle)

OUTPUT PARAMETERS

       win    - window object returned by the call (handle)

NOTES

       Users  are  cautioned  that  displacement  arithmetic  can  overflow  in variables of type
       MPI_Aint and result in unexpected values on some platforms. This issue may be addressed in
       a future version of MPI.

       Memory  in  this window may not be used as the target of one-sided accesses in this window
       until it is attached using the function MPI_Win_attach .  That is, in  addition  to  using
       MPI_Win_create_dynamic  to  create  an MPI window, the user must use MPI_Win_attach before
       any local memory may be the target of an MPI RMA operation. Only memory that is  currently
       accessible may be attached.

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 guarantee 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_COMM
              - Invalid communicator.  A common error is to use a null  communicator  in  a  call
              (not even allowed in MPI_Comm_rank ).
       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_attach   MPI_Win_detach  MPI_Win_allocate  MPI_Win_allocate_shared  MPI_Win_create
       MPI_Win_free

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