NAME¶
MPI_Finalize - Terminates MPI execution environment
SYNOPSIS¶
int MPI_Finalize( void )
NOTES¶
All processes must call this routine before exiting. The number of processes
running
after this routine is called is undefined; it is best not to
perform much more than a
return rc after calling
MPI_Finalize .
THREAD AND SIGNAL SAFETY¶
The MPI standard requires that
MPI_Finalize be called
only by the
same thread that initialized MPI with either
MPI_Init or
MPI_Init_thread .
NOTES FOR FORTRAN¶
All MPI routines in Fortran (except for
MPI_WTIME and
MPI_WTICK )
have an additional argument
ierr at the end of the argument list.
ierr is an integer and has the same meaning as the return value of the
routine in C. In Fortran, MPI routines are subroutines, and are invoked with
the
call statement.
All MPI objects (e.g.,
MPI_Datatype ,
MPI_Comm ) are of type
INTEGER in Fortran.
ERRORS¶
All MPI routines (except
MPI_Wtime and
MPI_Wtick ) return an error
value; C routines as the value of the function and Fortran routines in the
last argument. Before the value is returned, the current MPI error handler is
called. By default, this error handler aborts the MPI job. The error handler
may be changed with
MPI_Comm_set_errhandler (for communicators),
MPI_File_set_errhandler (for files), and
MPI_Win_set_errhandler
(for RMA windows). The MPI-1 routine
MPI_Errhandler_set may be used but
its use is deprecated. The predefined error handler
MPI_ERRORS_RETURN
may be used to cause error values to be returned. Note that MPI does
not guarentee that an MPI program can continue past an error; however,
MPI implementations will attempt to continue whenever possible.
- MPI_SUCCESS
- - No error; MPI routine completed successfully.
LOCATION¶
/tmp/gyCYfBi4J6/mpich-3.1/src/mpi/init/finalize.c