MPI_Abort(3) Open MPI MPI_Abort(3)NAMEMPI_Abort - Terminates MPI execution environment.
SYNTAXC 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)
Java Syntax
import mpi.*;
void MPI.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 long-term goal of the Open MPI implementation is to terminate all
processes in all tasks that contain a process in comm, and the error
code is not returned to the invoking environment. At the moment, this
isn't fully implemented and MPI_Abort will terminate the entire job.
The Java implementation currently does not allow specification of a
communicator and aborts the entire job - this will be updated to sup‐
port the long-term implementation at a later date.
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++ and Java
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 - similar behavior is
followed by Java.
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.
1.7.4 Feb 04, 2014 MPI_Abort(3)
