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MPI_Abort

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.