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MPI_Type_create_resized(3OpenMPI)                                          MPI_Type_create_resized(3OpenMPI)



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 con-struction construction
       struction 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




Open MPI 1.2                                   September 2006              MPI_Type_create_resized(3OpenMPI)