|
« Return to documentation listing
Table of Contents
MPI_Comm_create_errhandler - Creates an error handler that can be
attached to communicators.
#include <mpi.h>
int MPI_Comm_create_errhandler(MPI_Comm_errhandler_fn *function,
MPI_Errhandler *errhandler)
INCLUDE ’mpif.h’
MPI_COMM_CREATE_ERRHANDLER(FUNCTION, ERRHANDLER, IERROR)
EXTERNAL FUNCTION
INTEGER ERRHANDLER, IERROR
#include <mpi.h>
static MPI::Errhandler
MPI::Comm::Create_errhandler(MPI::Comm::Errhandler_fn*
function)
- function
- User-defined error handling procedure (function).
- errhandler
- MPI error handler (handle).
- IERROR
- Fortran
only: Error status (integer).
MPI_Comm_create_errhandler creates
an error handler that can be attached to communicators. This function is
identical to MPI_Errhandler_create, the use of which is deprecated.
In
C, the user routine should be a function of type MPI_Comm_errhandler_fn,
which is defined as
typedef void MPI_Comm_errhandler_fn(MPI_Comm *, int *, ...);
The first argument is the communicator in use. The second is the error code
to be returned by the MPI routine that raised the error. This typedef replaces
MPI_Handler_function, the use of which is deprecated.
In Fortran, the user
routine should be of this form:
SUBROUTINE COMM_ERRHANDLER_FN(COMM, ERROR_CODE, ...)
INTEGER COMM, ERROR_CODE
In C++, the user routine should be of this form:
typedef void MPI::Comm::Errhandler_fn(MPI_Comm &, int *, ...);
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.
Table of Contents
« Return to documentation listing
|
