| MPI_COMM_CREATE_ERRHANDLER(function, errhandler) | |
| IN function | user defined error handling procedure (function) |
| OUT errhandler | MPI error handler (handle) |
int MPI_Comm_create_errhandler(MPI_Comm_errhandler_fn *function, MPI_Errhandler *errhandler)
MPI_COMM_CREATE_ERRHANDLER(FUNCTION, ERRHANDLER, IERROR)
EXTERNAL FUNCTION
INTEGER ERRHANDLER, IERROR
static MPI::Errhandler MPI::Comm::Create_errhandler(MPI::Comm::Errhandler_fn* function)
Creates an error handler that can be attached to communicators. This function is identical to MPI_ERRHANDLER_CREATE, whose use is deprecated.
The user routine should be, in C, a function of type MPI_Comm_errhandler_fn, which is defined as
typedef void MPI_Comm_errhandler_fn(MPI_Comm *, int *, ...);
The first argument is the communicator in use.
The second is
the error code to be returned by the MPI routine that raised the error.
If the routine would have returned MPI_ERR_IN_STATUS, it is
the error code returned in the status for the request that caused the
error handler to be invoked.
The remaining arguments are ``stdargs'' arguments
whose number and meaning is implementation-dependent. An implementation
should clearly document these arguments.
Addresses are used so that the handler may be written in Fortran.
This typedef replaces MPI_Handler_function, whose use is
deprecated.
In Fortran, the user routine should be of the form:
SUBROUTINE COMM_ERRHANDLER_FN(COMM, ERROR_CODE, ... )
INTEGER COMM, ERROR_CODE
Advice to users.
Users are discouraged from using a Fortran
{COMM|WIN|FILE}_ERRHANDLER_FN
since the routine expects a variable number of arguments. Some Fortran systems
may allow this but some may fail to give the correct result or
compile/link this code. Thus, it will not, in general, be possible to
create portable code with a Fortran
{COMM|WIN|FILE}_ERRHANDLER_FN.
( End of advice to users.)
In C++, the user routine should be of the form:
typedef void MPI::Comm::Errhandler_fn(MPI::Comm &, int *, ... );
Rationale.
The variable argument list is provided because it provides an
ISO-standard
hook for providing additional information to the error
handler; without this hook,
ISO C
prohibits additional arguments.
( End of rationale.)
Advice to users.
A newly
created communicator inherits the error
handler that is associated with the ``parent'' communicator.
In particular, the user can specify a ``global'' error handler for
all communicators by
associating this handler with the communicator MPI_COMM_WORLD
immediately after initialization.
( End of advice to users.)
| MPI_COMM_SET_ERRHANDLER(comm, errhandler) | |
| INOUT comm | communicator (handle) |
| IN errhandler | new error handler for communicator (handle) |
int MPI_Comm_set_errhandler(MPI_Comm comm, MPI_Errhandler errhandler)
MPI_COMM_SET_ERRHANDLER(COMM, ERRHANDLER, IERROR)
INTEGER COMM, ERRHANDLER, IERROR
void MPI::Comm::Set_errhandler(const MPI::Errhandler& 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, whose use is deprecated.
| MPI_COMM_GET_ERRHANDLER(comm, errhandler) | |
| IN comm | communicator (handle) |
| OUT errhandler | error handler currently associated with communicator (handle) |
int MPI_Comm_get_errhandler(MPI_Comm comm, MPI_Errhandler *errhandler)
MPI_COMM_GET_ERRHANDLER(COMM, ERRHANDLER, IERROR)
INTEGER COMM, ERRHANDLER, IERROR
MPI::Errhandler MPI::Comm::Get_errhandler() const
Retrieves the error handler currently associated with a communicator. This call is identical to MPI_ERRHANDLER_GET, whose use is deprecated. Example: A library function may register at its entry point the current error handler for a communicator, set its own private error handler for this communicator, and restore before exiting the previous error handler.