MPI_Type_size − Returns the number of bytes occupied by entries in a data type.
#include
<mpi.h>
int MPI_Type_size(MPI_Datatype datatype, int
*size)
INCLUDE
’mpif.h’
MPI_TYPE_SIZE(DATATYPE, SIZE, IERROR)
INTEGER |
DATATYPE, SIZE, IERROR |
#include
<mpi.h>
int Datatype::Get_size() const
datatype |
Datatype (handle). |
size |
Datatype size (integer). |
|||
IERROR |
Fortran only: Error status (integer). |
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.
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.