MPI_File_preallocate(3)

NAME
MPI_File_preallocate - Preallocates storage space for a file

SYNOPSIS
#include "mpi.h"
int MPI_File_preallocate(MPI_File fh, MPI_Offset size)

INPUT PARAMETERS
fh  - file handle (handle)
size
    - size to preallocate (nonnegative integer)

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', 'MPI_File') are of type 'INTEGER' in Fortran.