NAME¶
MPI_Comm_set_errhandler - Attaches a new error handler to a
communicator.
C Syntax¶
#include <mpi.h>
int MPI_Comm_set_errhandler(MPI_Comm comm,
MPI_Errhandler errhandler)
Fortran Syntax¶
INCLUDE 'mpif.h'
MPI_COMM_SET_ERRHANDLER(COMM, ERRHANDLER, IERROR)
INTEGER COMM, ERRHANDLER, IERROR
C++ Syntax¶
#include <mpi.h>
void MPI::Comm::Set_errhandler(const MPI::Errhandler& errhandler)
- comm
- Communicator (handle).
OUTPUT PARAMETERS¶
- errhandler
- New error handler for communicator (handle).
- IERROR
- Fortran only: Error status (integer).
DESCRIPTION¶
MPI_Comm_set_errhandler attaches a new error handler to a communicator. The
error handler must be either a predefined error handler or an error handler
created by a call to MPI_Comm_create_errhandler. This call is identical to
MPI_Errhandler_set, the use of which is deprecated.
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.