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NAME
MPI_Abort - Terminates MPI execution environment.
SYNTAX
C Syntax
#include <mpi.h>
int MPI_Abort(MPI_Comm comm, int errorcode)
Fortran Syntax
INCLUDE 'mpif.h'
MPI_ABORT(COMM, ERRORCODE, IERROR)
INTEGER COMM, ERRORCODE, IERROR
C++ Syntax
#include <mpi.h>
void Comm::Abort(int errorcode)
INPUT PARAMETERS
comm Communicator of tasks to abort.
errorcode Error code to return to invoking environment.
OUTPUT PARAMETER
IERROR Fortran only: Error status (integer).
DESCRIPTION
This routine makes a "best attempt" to abort all tasks in the group of
comm. This function does not require that the invoking environment take
any action with the error code. However, a UNIX or POSIX environment
should handle this as a return errorcode from the main program or an
abort (errorcode).
The Open MPI implementation terminates all processes in all tasks that
contain a process in comm, and the error code is not returned to the
invoking environment.
Note: All associated processes are sent a SIGTERM.
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++ func-
tions 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.
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