pqc/external/flint-2.4.3/fmpz_mod_poly/profile/p-tree.c

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2014-05-18 22:03:37 +00:00
/*=============================================================================
This file is part of FLINT.
FLINT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FLINT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FLINT; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright (C) 2012 William Hart
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <gmp.h>
#include <float.h>
#include "flint.h"
#include "fmpz.h"
#include "fmpz_mod_poly.h"
#include "ulong_extras.h"
#include "profiler.h"
int
main(void)
{
slong len, iter, i;
fmpz_mod_poly_t f;
fmpz * roots;
fmpz_poly_struct ** tree;
fmpz_t N;
timeit_t t;
char N_str[201] = "29799904256775982671863388319999573561548825027149399972531599612392671227006866151136667908641695103422986028076864929902803267437351318167549013218980573566942647077444419419003164546362008247462049";
FLINT_TEST_INIT(state);
len = 36865;
fmpz_init(N);
fmpz_set_str(N, N_str, 10);
roots = _fmpz_vec_init(len);
for (i = 0; i < len; i++)
fmpz_randm(roots + i, state, N);
fmpz_mod_poly_init(f, N);
/*
Time tree
*/
timeit_start(t);
for (iter = 0; iter < 10; iter++)
{
tree = _fmpz_mod_poly_tree_alloc(len);
_fmpz_mod_poly_tree_build(tree, roots, len, N);
_fmpz_mod_poly_tree_free(tree, len);
}
timeit_stop(t);
flint_printf("len = %wd, time = %wdms\n", len, ((slong) t->cpu)/10);
fmpz_mod_poly_clear(f);
_fmpz_vec_clear(roots, len);
fmpz_clear(N);
flint_randclear(state);
}