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MPI_Comm_get_errhandler - Retrieves error handler associated with
a communicator.
#include <mpi.h>
int MPI_Comm_get_errhandler(MPI_Comm comm,
MPI_Errhandler *errhandler)
USE MPI
! or the older form: INCLUDE ’mpif.h’
MPI_COMM_GET_ERRHANDLER(COMM, ERRHANDLER, IERROR)
INTEGER COMM, ERRHANDLER, IERROR
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
- comm
- Communicator (handle).
- errhandler
- New error handler for communicator (handle).
- IERROR
- Fortran only: Error
status (integer).
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.
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.
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