NAME

       MPI_Comm_set_errhandler  - Attaches a new error handler to a communicator.

SYNTAX

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)

INPUT/OUTPUT PARAMETER

       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.