Exemplo n.º 1
0
int main(int argc, char *argv[])
{
    int out;
    ulong n, nref, maxq = 5000;
    ulong * rand;
    flint_rand_t state;
    slong r, nr;

    int l, nf = 5;
    do_f func[5] = { acb_dirichlet_gauss_sum_naive,
        acb_dirichlet_gauss_sum_factor,
        acb_dirichlet_gauss_sum_theta,
        acb_dirichlet_gauss_sum,
        acb_dirichlet_gauss_sum };
    char * name[5] = { "naive", "factor", "theta", "default", "precomp" };

    int i, ni = 5;
    ulong qmin[5] =  {  3,  50, 500, 1000, 10000 };
    ulong qmax[5] =  { 50, 100, 599, 1050, 10030 };

    int j, nj = 3;
    slong prec[3] = { 64, 128, 1024 };

    if (argc < 2)
        out = LOG;
    else if (!strcmp(argv[1], "json"))
        out = JSON;
    else if (!strcmp(argv[1], "csv"))
        out = CSV;
    else if (!strcmp(argv[1], "log"))
        out = LOG;
    else
    {
        printf("usage: %s [log|csv|json]\n", argv[0]);
        flint_abort();
    }

    if (out == CSV)
        flint_printf("# %-12s, %7s, %7s, %7s, %7s\n","name", "prec", "qmin", "qmax", "time");

    for (j = 0; j < nj; j++)
    {

    for (i = 0; i < ni; i++)
    {

        if (out == LOG)
            flint_printf("G_q(a) at prec %wu for all %wu <= q <= %wu....\n", prec[j], qmin[i], qmax[i]);

        for (l = 0; l < nf; l++)
        {
            ulong q;

            if (qmin[i] > 2000 && l == 0)
                continue;

            if (out == LOG)
                flint_printf("%-14s ...  ", name[l]);
            else if (out == CSV)
                flint_printf("%-12s, %7d, %7d, %7d,   ", name[l], prec[j], qmin[i], qmax[i]);
            else if (out == JSON)
                flint_printf("{ \"name\": \"%s\", \"prec\": %d, \"qmin\": %d, \"qmax\": %d, \"time\": ",
                        name[l], prec[j], qmin[i], qmax[i]);

            TIMEIT_ONCE_START

                for (q = qmin[i]; q <= qmax[i]; q++)
                {
                    dirichlet_group_t G;
                    dirichlet_char_t chi;
                    acb_t res;

                    if (q % 4 == 2)
                        continue;

                    dirichlet_group_init(G, q);
                    if (l == 4)
                        dirichlet_group_dlog_precompute(G, 1);
                    dirichlet_char_init(chi, G);
                    dirichlet_char_first_primitive(chi, G);
                    acb_init(res);

                        do {
                            func[l](res, G, chi, prec[j]);
                        } while (dirichlet_char_next_primitive(chi, G) >= 0);

                    acb_clear(res);
                    dirichlet_char_clear(chi);
                    if (l == 4)
                        dirichlet_group_dlog_clear(G);
                    dirichlet_group_clear(G);
                }

            TIMEIT_ONCE_STOP

                if (out == JSON)
                    flint_printf("}\n");
                else
                    flint_printf("\n");
        }

    }

    }
    flint_cleanup();
    return EXIT_SUCCESS;
}
Exemplo n.º 2
0
int main()
{
    slong iter, bits;
    flint_rand_t state;

    flint_printf("properties....");
    fflush(stdout);
    flint_randinit(state);
    for (bits = 5; bits <= 30; bits += 5)
    {

        for (iter = 0; iter < 50; iter++)
        {
            dirichlet_group_t G;
            dirichlet_char_t chi, psi;
            ulong q, iter2;

            q = 2 + n_randint(state, 1 << bits);

            dirichlet_group_init(G, q);
            dirichlet_char_init(chi, G);
            dirichlet_char_init(psi, G);

            /* check number char properties */
            for (iter2 = 0; iter2 < 100; iter2++)
            {
                ulong m, n;
                ulong p1, p2, pairing, cm, cn, q2, q3;
                dirichlet_group_t G2, G3;
                dirichlet_char_t chi2, chi3;

                if (iter2 == 50)
                    dirichlet_group_dlog_precompute(G, 5);

                /* one random character */
                do
                    m = n_randint(state, q);
                while (n_gcd(q, m) > 1);

                dirichlet_char_log(chi, G, m);

                p1 = dirichlet_order_ui(G, m);
                p2 = dirichlet_order_char(G, chi);
                check_eq(p1, p2, q, m, "order m", "order chi");

                p1 = dirichlet_conductor_ui(G, m);
                p2 = dirichlet_conductor_char(G, chi);
                check_eq(p1, p2, q, m, "conductor m", "conductor chi");

                p1 = dirichlet_parity_ui(G, m);
                p2 = dirichlet_parity_char(G, chi);
                check_eq(p1, p2, q, m, "parity m", "parity chi");

                p1 = dirichlet_char_is_real(G, chi);
                p2 = (dirichlet_order_char(G, chi) <= 2);
                check_eq(p1, p2, q, m, "is_real", "(order <= 2)");

                /* check index */
                p1 = dirichlet_index_char(G, chi);
                dirichlet_char_index(psi, G, p1);

                if (!dirichlet_char_eq_deep(G, chi, psi))
                {
                    flint_printf("FAIL: index\n\n");
                    flint_printf("q = %wu\n\n", q);
                    flint_printf("m = %wu\n\n", m);
                    flint_printf("chi = "); dirichlet_char_print(G, chi);
                    flint_printf("\n\nindex(chi) = %wu\n\n", p1);
                    flint_printf("psi(index) = %wu\n\n", psi->n);
                    flint_printf("psi = "); dirichlet_char_print(G, psi);
                    flint_printf("\n\n");
                    abort();
                }

                /* lift to higher modulus */
                q2 = q * (1 + n_randint(state, 100));

                dirichlet_group_init(G2, q2);
                dirichlet_char_init(chi2, G2);
                dirichlet_char_lift(chi2, G2, chi, G);

                p1 = dirichlet_conductor_char(G, chi);
                p2 = dirichlet_conductor_char(G2, chi2);
                check_eq(p1, p2, q, m, "conductor chi", "conductor lift");

                p1 = dirichlet_order_char(G, chi);
                p2 = dirichlet_order_char(G2, chi2);
                check_eq(p1, p2, q, m, "order chi", "order lift");

                /* and lower */

                dirichlet_char_lower(psi, G, chi2, G2);
                if (!dirichlet_char_eq_deep(G, chi, psi))
                {
                    flint_printf("FAIL: lift and lower back\n\n");
                    flint_printf("q = %wu\n\nchi = ", q);
                    dirichlet_char_print(G, chi);
                    flint_printf("\n\nq2 = %wu\n\nchi2 = ", q2);
                    dirichlet_char_print(G2, chi2);
                    flint_printf("\n\nq = %wu\n\npsi = ", q);
                    dirichlet_char_print(G, psi);
                    flint_printf("\n\n");
                    abort();
                }

                q3 = dirichlet_conductor_char(G, chi) * random_divisor(state, G);
                q3 = n_gcd(q, q3);

                dirichlet_group_init(G3, q3);
                dirichlet_char_init(chi3, G3);
                dirichlet_char_lower(chi3, G3, chi2, G2);

                p1 = dirichlet_conductor_char(G, chi);
                p2 = dirichlet_conductor_char(G3, chi3);
                check_eq(p1, p2, q, m, "conductor chi", "conductor lower");

                p1 = dirichlet_order_char(G, chi);
                p2 = dirichlet_order_char(G3, chi3);
                check_eq(p1, p2, q, m, "order chi", "order lower");

                dirichlet_char_clear(chi3);
                dirichlet_group_clear(G3);
                dirichlet_char_clear(chi2);
                dirichlet_group_clear(G2);

                /* another random character */
                do
                    n = n_randint(state, q);
                while (n_gcd(q, n) > 1);

                dirichlet_char_log(psi, G, n);
                pairing = dirichlet_pairing(G, m, n);
                cn = dirichlet_chi(G, chi, n);
                cm = dirichlet_chi(G, psi, m);

                if (pairing != cn || pairing != cm)
                {
                    flint_printf("FAIL: pairing\n\n");
                    flint_printf("q = %wu\n\n", q);
                    flint_printf("m = %wu\n\n", m);
                    flint_printf("n = %wu\n\n", n);
                    flint_printf("chi(m,n) = %wu\n\n", pairing);
                    flint_printf("chi(m)(n) = %wu\n\n", cn);
                    flint_printf("chi(n)(m) = %wu\n\n", cm);
                    abort();
                }

            }

            dirichlet_group_dlog_clear(G);

            dirichlet_char_clear(chi);
            dirichlet_char_clear(psi);
            dirichlet_group_clear(G);
        }
    }

    flint_randclear(state);
    flint_cleanup();
    flint_printf("PASS\n");
    return EXIT_SUCCESS;
}