pqc/external/flint-2.4.3/nmod_vec/profile/p-scalar_mul.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 2010 William Hart
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include "profiler.h"
#include "flint.h"
#include "ulong_extras.h"
#include "nmod_vec.h"
typedef struct
{
mp_bitcnt_t bits;
slong length;
} info_t;
void sample(void * arg, ulong count)
{
mp_limb_t n, c;
nmod_t mod;
info_t * info = (info_t *) arg;
mp_bitcnt_t bits = info->bits;
slong length = info->length;
slong i, j;
mp_ptr vec = _nmod_vec_init(length);
mp_ptr vec2 = _nmod_vec_init(length);
FLINT_TEST_INIT(state);
for (i = 0; i < count; i++)
{
n = n_randbits(state, bits);
if (n == UWORD(0)) n++;
c = n_randint(state, n);
for (j = 0; j < length; j++)
vec[j] = n_randint(state, n);
nmod_init(&mod, n);
prof_start();
for (j = 0; j < 30; j++)
_nmod_vec_scalar_mul_nmod(vec2, vec, length, c, mod);
prof_stop();
}
flint_randclear(state);
_nmod_vec_clear(vec);
_nmod_vec_clear(vec2);
}
int main(void)
{
double min1, min2, max;
info_t info;
mp_bitcnt_t i;
for (i = 2; i <= FLINT_BITS; i++)
{
info.bits = i;
info.length = 1024;
prof_repeat(&min1, &max, sample, (void *) &info);
info.length = 65536;
prof_repeat(&min2, &max, sample, (void *) &info);
flint_printf("bits %wd, length 128 %.1lf c/l, length 65536 %.1lf c/l\n",
i, (min1/(double)FLINT_CLOCK_SCALE_FACTOR)/(1024*30),
(min2/(double)FLINT_CLOCK_SCALE_FACTOR)/(65536*30)
);
}
return 0;
}