MPI_Win_copy_attr_function callback function

Article
09/14/2018

MPI_Win_copy_attr_function is a placeholder for the application-defined function name. It is a copy callback function for win_keyval.

Syntax

int MPI_Win_copy_attr_function(
           MPI_Win oldwin,
           int     win_keyval,
  _In_opt_ void    *extra_state,
  _In_     void    *attribute_val_in,
  _Out_    void    *attribute_val_out,
  _Out_    int     *flag
);

Parameters

oldwin
Old MPI window.
win_keyval
Window key value.
extra_state [in, optional]
Extra state.
attribute_val_in [in]
Input value of the attribute.
attribute_val_out [out]
Output value of the attribute.
flag [out]
Flag value indicating if the copy was successful.

Return value

If an attribute copy function returns anything other than MPI_SUCCESS, then the call that caused it to be invoked is erroneous.

Fortran

    SUBROUTINE WIN_COPY_ATTR_FUNCTION(OLDWIN, WIN_KEYVAL, EXTRA_STATE,
                ATTRIBUTE_VAL_IN, ATTRIBUTE_VAL_OUT, FLAG, IERROR)
        INTEGER OLDWIN, WIN_KEYVAL, IERROR
        INTEGER(KIND=MPI_ADDRESS_KIND) EXTRA_STATE, ATTRIBUTE_VAL_IN,
            ATTRIBUTE_VAL_OUT
        LOGICAL FLAG

Requirements

Header

Mpi.h; Mpif.h

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