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NAME
MPI_Type_create_struct - Creates a structured data type.
SYNTAX
C Syntax
#include <mpi.h>
int MPI_Type_create_struct(int count, int array_of_blocklengths[],
MPI_Aint array_of_displacements[], MPI_Datatype array_of_types[],
MPI_Datatype *newtype)
Fortran Syntax (see FORTRAN 77 NOTES)
INCLUDE 'mpif.h'
MPI_TYPE_CREATE_STRUCT(COUNT, ARRAY_OF_BLOCKLENGTHS,
ARRAY_OF_DISPLACEMENTS, ARRAY_OF_TYPES, NEWTYPE, IERROR)
INTEGER COUNT, ARRAY_OF_BLOCKLENGTHS(*), ARRAY_OF_TYPES(*),
INTEGER NEWTYPE, IERROR
INTEGER(KIND=MPI_ADDRESS_KIND) ARRAY_OF_DISPLACEMENTS(*)
C++ Syntax
#include <mpi.h>
static MPI::Datatype MPI::Datatype::Create_struct(int count,
const int array_of_blocklengths[], const MPI::Aint
array_of_displacements[], const MPI::Datatype
array_of_types[])
INPUT PARAMETERS
count Number of blocks (integer) -- also number of entries in
arrays array_of_types, array_of_displacements, and
array_of_blocklengths.
array_of_blocklengths
Number of elements in each block (array of integers).
array_of_displacements
Byte displacement of each block (array of integers).
array_of_types
Type of elements in each block (array of handles to data-type
objects).
OUTPUT PARAMETERS
newtype New data type (handle).
IERROR Fortran only: Error status (integer).
DESCRIPTION
MPI_Type_create_struct creates a structured data type. This routine
replaces MPI_Type_struct, which is now deprecated.
NOTE - This routine replaces MPI_Type_struct, which is deprecated. See
the man page MPI_Type_struct(3) for information about that routine.
where MPI_ADDRESS_KIND is a constant defined in mpif.h and gives the
length of the declared integer in bytes.
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_struct
MPI_Type_create_hindexed
Open MPI 1.2 September 2006MPI_Type_create_struct(3OpenMPI)
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