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MPI_Type_free_keyval - Frees a previously created type key value.
#include <mpi.h>
int MPI_Type_free_keyval(int *type_keyval)
INCLUDE ’mpif.h’
MPI_TYPE_FREE_KEYVAL(TYPE_KEYVAL, IERROR)
INTEGER TYPE_KEYVAL, IERROR
#include <mpi.h>
static void MPI::Datatype::Free_keyval(int& type_keyval)
- type_keyval
- Key value to free (integer).
- IERROR
- Fortran only: Error status (integer).
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.
MPI_Type_create_keyval
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