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MPI_Comm_set_errhandler - Attaches a new error handler to a communicator.
#include <mpi.h>
int MPI_Comm_set_errhandler(MPI_Comm comm,
MPI_Errhandler errhandler)
USE MPI
! or the older form: INCLUDE ’mpif.h’
MPI_COMM_SET_ERRHANDLER(COMM, ERRHANDLER, IERROR)
INTEGER COMM, ERRHANDLER, IERROR
USE mpi_f08
MPI_Comm_set_errhandler(comm, errhandler, ierror)
TYPE(MPI_Comm), INTENT(IN) :: comm
TYPE(MPI_Errhandler), INTENT(IN) :: errhandler
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
- comm
- Communicator (handle).
- errhandler
- New error handler for communicator (handle).
- IERROR
- Fortran only: Error
status (integer).
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.
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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