86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
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/*=============================================================================
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This file is part of FLINT.
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FLINT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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FLINT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FLINT; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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=============================================================================*/
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/******************************************************************************
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Copyright (C) 2012 William Hart
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******************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <gmp.h>
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#include <float.h>
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#include "flint.h"
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#include "fmpz.h"
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#include "fmpz_mod_poly.h"
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#include "ulong_extras.h"
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#include "profiler.h"
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int
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main(void)
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{
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slong len, iter;
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fmpz_mod_poly_t f, g, r;
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fmpz_t N;
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timeit_t t;
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char N_str[201] = "29799904256775982671863388319999573561548825027149399972531599612392671227006866151136667908641695103422986028076864929902803267437351318167549013218980573566942647077444419419003164546362008247462049";
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FLINT_TEST_INIT(state);
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len = 36865;
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fmpz_init(N);
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fmpz_set_str(N, N_str, 10);
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fmpz_mod_poly_init2(f, N, len);
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fmpz_mod_poly_init2(g, N, len);
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fmpz_mod_poly_init2(r, N, 2*len - 1);
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/*
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Construct random polynomials f, g
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*/
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fmpz_mod_poly_randtest(f, state, len);
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fmpz_mod_poly_randtest(g, state, len);
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/*
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Time multiplication
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*/
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timeit_start(t);
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for (iter = 0; iter < 10; iter++)
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fmpz_mod_poly_mul(r, f, g);
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timeit_stop(t);
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flint_printf("len = %wd, time = %wdms\n", len, ((slong) t->cpu)/10);
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fmpz_mod_poly_clear(f);
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fmpz_mod_poly_clear(g);
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fmpz_mod_poly_clear(r);
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fmpz_clear(N);
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flint_randclear(state);
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}
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