NAME
MPI_TYPE_DUP_FN - Built-in MPI function to simple-mindedly copy
datatype attributes.
SYNOPSIS
#include <mpi.h>
int MPI_TYPE_DUP_FN(MPI_Datatype dtype, int key,
void *extra, void *attrin, void *attrout,
int *flag)
INPUT PARAMETERS
dtype - communicator (handle)
key - key value (integer)
extra - extra state
attrin - in value for attribute
OUTPUT PARAMETERS
attrout
- out value for attribute
flag - 1 if attribute copied successfully, 0 otherwise (logical)
NOTES
This function blindly byte-copies attributes on datatypes. It is the
default atrribute-copying function for datatypes. This function will
always return MPI_SUCCESS , and flag will always be set to 1.
The actual copy is performed by the code
*((void **) attrout) = attrin;
If this simple assignment is not sufficient for your attributes, you
will need to reassign the attribute-copying function on relevant
keyvals on datatypes with the MPI_Type_keyval_create function.
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.
SEE ALSO
MPI_Type_keyval_create
MORE INFORMATION
For more information, please see the official MPI Forum web site, which
contains the text of both the MPI-1 and MPI-2 standards. These
documents contain detailed information about each MPI function (most of
which is not duplicated in these man pages).
http://www.mpi-forum.org/
ACKNOWLEDGEMENTS
The LAM Team would like the thank the MPICH Team for the handy program
to generate man pages ("doctext" from
ftp://ftp.mcs.anl.gov/pub/sowing/sowing.tar.gz ), the initial
formatting, and some initial text for most of the MPI-1 man pages.
LOCATION
dupfn.c