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MPI_Type_size
Langue: en
Version: Mar 18, 2009 (fedora - 05/07/09)
Section: 3 (Bibliothèques de fonctions)
Sommaire
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 multiplicity.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.
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