benchmark-recint_inv_arazi.C
/* ruint_arazi.cpp - Arazi & Qi for RecInt library test file
Return value.
0 No error
!= 0 Bad result for an operation
The following constants have to be defined.
STD_RECINT_SIZE size of recint (> 6)
LOOPS number of loops
*/
#include <recint/ruint.h>
#include <recint/rmintmg.h> /* arazi_qi() */
#include <givaro/givtimer.h>
#if not defined(STD_RECINT_SIZE)
#define STD_RECINT_SIZE 9
#endif
#if not defined(LOOPS)
#define LOOPS 1000000
#endif
#define ALEA_MAX 64
#define ALEA_MASK 63
using namespace RecInt;
int main(int argc, char ** argv)
{
size_t nbloops = static_cast<size_t>((argc > 1)? atoi(argv[1]) : LOOPS);
Givaro::Timer tim, gmp;
ruint<STD_RECINT_SIZE> a[ALEA_MAX];
ruint<STD_RECINT_SIZE> pinv[ALEA_MAX];
mpz_class b[ALEA_MAX],c[ALEA_MAX], gmod(1);
gmod <<= (1<<STD_RECINT_SIZE);
// std::cerr << "gmod: " << gmod << std::endl;
// Randomness
for (unsigned int i = 0; i < ALEA_MAX; i++) {
rand(a[i]);
if (a[i] % 2 == 0) ++a[i];
ruint_to_mpz(b[i],a[i]);
}
// Random
RecInt::srand(static_cast<unsigned long>(time(NULL)));
tim.clear(); tim.start();
for (UDItype l = 0; l < nbloops; l++) {
arazi_qi(pinv[l&ALEA_MASK], a[l&ALEA_MASK]);
}
tim.stop();
gmp.clear(); gmp.start();
for (UDItype l = 0; l < nbloops; l++) {
mpz_invert(c[l & ALEA_MASK].get_mpz_t(),b[l & ALEA_MASK].get_mpz_t(), gmod.get_mpz_t());
}
gmp.stop();
ruint<STD_RECINT_SIZE> module; rand(module);
// -----------
// Standard output for benchmark - Alexis Breust 2014/12/11
std::cout
<< "Time: " << tim.usertime()
<< " Mflops: " << std::scientific << (double(nbloops))/tim.usertime()/1000.0/1000.0 << ' ' << (double(nbloops))/gmp.usertime()/1000.0/1000.0
<< " SIZE: " << STD_RECINT_SIZE
<< " GMP-time: " << gmp.usertime()
<< ' ' << a[(int)(module)& ALEA_MASK] << ' ' << b[(int)(module)& ALEA_MASK] << std::endl ;
return 0;
}
/* -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
// vim:sts=4:sw=4:ts=4:et:sr:cino=>s,f0,{0,g0,(0,\:0,t0,+0,=s