MPI_Type_create_resized(3)         Open MPI         MPI_Type_create_resized(3)



NAME
       MPI_Type_create_resized - Returns a new data type with new extent and
       upper and lower bounds.


SYNTAX
C Syntax
       #include <mpi.h>
       int MPI_Type_create_resized(MPI_Datatype oldtype, MPI_Aint lb,
            MPI_Aint extent, MPI_Datatype *newtype)


Fortran Syntax (see FORTRAN 77 NOTES)
       INCLUDE 'mpif.h'
       MPI_TYPE_CREATE_RESIZED(OLDTYPE, LB, EXTENT, NEWTYPE, IERROR)
            INTEGER   OLDTYPE, NEWTYPE, IERROR
            INTEGER(KIND=MPI_ADDRESS_KIND)     LB, EXTENT


C++ Syntax
       #include <mpi.h>
       MPI::Datatype MPI::Datatype::Create_resized(const MPI::Aint lb,
            const MPI::Aint extent) const


INPUT PARAMETERS
       oldtype   Input data type (handle).

       lb        New lower bound of data type (integer).

       extent    New extent of data type (integer).


OUTPUT PARAMETERS
       newtype   Output data type (handle).

       IERROR    Fortran only: Error status (integer).


DESCRIPTION
       MPI_Type_create_resized returns in newtype a handle to a new data type
       that is identical to oldtype, except that the lower bound of this new
       data type is set to be lb, and its upper bound is set to be lb +
       extent. Any previous lb and ub markers are erased, and a new pair of
       lower bound and upper bound markers are put in the positions indicated
       by the lb and extent arguments. This affects the behavior of the data
       type when used in communication operations, with count > 1, and when
       used in the construction of new derived data types.


FORTRAN 77 NOTES
       The MPI standard prescribes portable Fortran syntax for the LB and
       EXTENT arguments only for Fortran 90. FORTRAN 77 users may use the non-
       portable syntax

            INTEGER*MPI_ADDRESS_KIND LB
       or
            INTEGER*MPI_ADDRESS_KIND EXTENT

       where MPI_ADDRESS_KIND is a constant defined in mpif.h and gives the
       length of the declared integer in bytes.


NOTE
       Use of MPI_Type_create_resized is strongly recommended over the old
       MPI-1 functions MPI_Type_extent and MPI_Type_lb.


ERRORS
       Almost all MPI routines return an error value; C routines as the value
       of the function and Fortran routines in the last argument. C++
       functions do not return errors. If the default error handler is set to
       MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism
       will be used to throw an MPI:Exception object.

       Before the error value is returned, the current MPI error handler is
       called. By default, this error handler aborts the MPI job, except for
       I/O function errors. The error handler may be changed with
       MPI_Comm_set_errhandler; 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.


SEE ALSO
       MPI_Type_get_extent




1.4.1                            Jan 14, 2010       MPI_Type_create_resized(3)
