MPI_Type_create_resized(3) Open MPI MPI_Type_create_resized(3)NAMEMPI_Type_create_resized - Returns a new data type with new extent and
upper and lower bounds.
SYNTAXC 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).
DESCRIPTIONMPI_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++ func‐
tions 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
1.7.4 Feb 04, 2014 MPI_Type_create_resized(3)
