pqc/external/flint-2.4.3/examples/fq_poly.c
2014-05-24 23:16:06 +02:00

161 lines
4.4 KiB
C

/*=============================================================================
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 Sebastian Pancratz
Copyright (C) 2013 Mike Hansen
******************************************************************************/
/*
Demo FLINT program to demonstrate some use of the fq_poly module.
*/
#include <time.h>
#include "fq_poly.h"
int main(void)
{
fmpz_t p;
long d, i;
fq_ctx_t ctx;
clock_t c0, c1;
double c;
fq_poly_t f, g, h;
FLINT_TEST_INIT(state);
fq_poly_init(f, ctx);
fq_poly_init(g, ctx);
fq_poly_init(h, ctx);
printf("Polynomial multiplication over GF(q)\n");
printf("------------------------------------\n");
{
printf("1) Two length-10,000 polynomials over GF(3^2)\n");
fmpz_init_set_ui(p, 3);
d = 2;
fq_ctx_init_conway(ctx, p, d, "X");
fq_poly_randtest(g, state, 10000, ctx);
fq_poly_randtest(h, state, 10000, ctx);
c0 = clock();
fq_poly_mul_classical(f, g, h, ctx);
c1 = clock();
c = (double) (c1 - c0) / CLOCKS_PER_SEC;
printf("Classical: %fs\n", c);
c0 = clock();
for (i = 0; i < 100; i++)
fq_poly_mul_reorder(f, g, h, ctx);
c1 = clock();
c = (double) (c1 - c0) / CLOCKS_PER_SEC;
printf("Reorder: %fms\n", 10 * c);
c0 = clock();
for (i = 0; i < 100; i++)
fq_poly_mul_KS(f, g, h, ctx);
c1 = clock();
c = (double) (c1 - c0) / CLOCKS_PER_SEC;
printf("KS: %fms\n", 10 * c);
fq_ctx_clear(ctx);
fmpz_clear(p);
}
{
printf("2) Two length-500 polynomials over GF(3^263)\n");
fmpz_init_set_ui(p, 3);
d = 263;
fq_ctx_init_conway(ctx, p, d, "X");
fq_poly_randtest(g, state, 500, ctx);
fq_poly_randtest(h, state, 500, ctx);
c0 = clock();
fq_poly_mul_classical(f, g, h, ctx);
c1 = clock();
c = (double) (c1 - c0) / CLOCKS_PER_SEC;
printf("Classical: %fs\n", c);
c0 = clock();
fq_poly_mul_reorder(f, g, h, ctx);
c1 = clock();
c = (double) (c1 - c0) / CLOCKS_PER_SEC;
printf("Reorder: %fs\n", c);
c0 = clock();
for (i = 0; i < 100; i++)
fq_poly_mul_KS(f, g, h, ctx);
c1 = clock();
c = (double) (c1 - c0) / CLOCKS_PER_SEC;
printf("KS: %fms\n", 10 * c);
fq_ctx_clear(ctx);
fmpz_clear(p);
}
{
printf("3) Two length-5 polynomials over GF(109987^4)\n");
fmpz_init_set_ui(p, 109987);
d = 4;
fq_ctx_init_conway(ctx, p, d, "X");
fq_poly_randtest(g, state, 4, ctx);
fq_poly_randtest(h, state, 4, ctx);
c0 = clock();
for (i = 0; i < 1000 * 100; i++)
fq_poly_mul_classical(f, g, h, ctx);
c1 = clock();
c = (double) (c1 - c0) / CLOCKS_PER_SEC;
printf("Classical: %f\xb5s\n", 10 * c);
c0 = clock();
for (i = 0; i < 1000 * 100; i++)
fq_poly_mul_reorder(f, g, h, ctx);
c1 = clock();
c = (double) (c1 - c0) / CLOCKS_PER_SEC;
printf("Reorder: %f\xb5s\n", 10 * c);
c0 = clock();
for (i = 0; i < 1000 * 100; i++)
fq_poly_mul_KS(f, g, h, ctx);
c1 = clock();
c = (double) (c1 - c0) / CLOCKS_PER_SEC;
printf("KS: %f\xb5s\n", 10 * c);
fq_ctx_clear(ctx);
fmpz_clear(p);
}
fq_poly_clear(f, ctx);
fq_poly_clear(g, ctx);
fq_poly_clear(h, ctx);
FLINT_TEST_CLEANUP(state);
return EXIT_SUCCESS;
}