trusty (3) MPI_Abort.openmpi.3.gz

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++ 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.