MPI_TYPE_DUP_FN - Built-in MPI function to simple-mind
edly 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-copy
ing 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 For
tran, 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.
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 infor
mation 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 ini
tial formatting, and some initial text for most of the
MPI-1 man pages.
LOCATION
dupfn.c
Man(1) output converted with
man2html