MPI_Finalize(3) MPI MPI_Finalize(3)NAMEMPI_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 com‐
municators), 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 prede‐
fined 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
src/mpi/init/finalize.c
8/22/2013 MPI_Finalize(3)
