NAME

       MPI_Comm_get_errhandler  - Retrieves error handler associated with a communicator.

SYNTAX

C Syntax

       #include <mpi.h>
       int MPI_Comm_get_errhandler(MPI_Comm comm,
            MPI_Errhandler *errhandler)

Fortran Syntax

       USE MPI
       ! or the older form: INCLUDE 'mpif.h'
       MPI_COMM_GET_ERRHANDLER(COMM, ERRHANDLER, IERROR)
            INTEGER   COMM, ERRHANDLER, IERROR

Fortran 2008 Syntax

       USE mpi_f08
       MPI_Comm_get_errhandler(comm, errhandler, ierror)
            TYPE(MPI_Comm), INTENT(IN) :: comm
            TYPE(MPI_Errhandler), INTENT(OUT) :: errhandler
            INTEGER, OPTIONAL, INTENT(OUT) :: ierror

C++ Syntax

       #include <mpi.h>
       MPI::Errhandler MPI::Comm::Get_errhandler() const

INPUT PARAMETER

       comm      Communicator (handle).

OUTPUT PARAMETERS

       errhandler
                 New error handler for communicator (handle).

       IERROR    Fortran only: Error status (integer).

DESCRIPTION

       MPI_Comm_get_errhandler   retrieves   the   error  handler  currently  associated  with  a
       communicator.  This  call  is  identical  to  MPI_Errhandler_get,  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.

       See the MPI man page for a full list of MPI error codes.