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.