.TH MPI_File_set_atomicity 3 "3/4/1998" " " "MPI-2".SH NAMEMPI_File_set_atomicity \-  Sets the atomicity mode .SH SYNOPSIS.nf#include "mpi.h"int MPI_File_set_atomicity(MPI_File fh, int flag).fi.SH INPUT PARAMETERS.PD 0.TP.B fh - file handle (handle).PD 1.PD 0.TP.B flag - true to set atomic mode, false to set nonatomic mode (logical).PD 1.SH NOTES FOR FORTRANAll 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 ofthe routine in C.  In Fortran, MPI routines are subroutines and areinvoked with the 'call' statement.All MPI objects (e.g., 'MPI_Datatype', 'MPI_Comm', 'MPI_File') are oftype 'INTEGER' in Fortran.