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NAME
MPI_Type_size - Returns the number of bytes occupied by entries in a
data type.
SYNTAX
C Syntax
#include <mpi.h>
int MPI_Type_size(MPI_Datatype datatype, int *size)
Fortran Syntax
INCLUDE 'mpif.h'
MPI_TYPE_SIZE(DATATYPE, SIZE, IERROR)
INTEGER DATATYPE, SIZE, IERROR
C++ Syntax
#include <mpi.h>
int Datatype::Get_size() const
INPUT PARAMETER
datatype Datatype (handle).
OUTPUT PARAMETERS
size Datatype size (integer).
IERROR Fortran only: Error status (integer).
DESCRIPTION
MPI_Type_size returns the total size, in bytes, of the entries in the
type signature associated with datatype; i.e., the total size of the
data in a message that would be created with this datatype. Entries
that occur multiple times in the datatype are counted with their multi-
plicity.
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.
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