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#include <NTL/ZZ_pX.h>
#include <stdio.h>
NTL_CLIENT
double clean_data(double *t)
{
double x, y, z;
long i, ix, iy, n;
x = t[0]; ix = 0;
y = t[0]; iy = 0;
for (i = 1; i < 5; i++) {
if (t[i] < x) {
x = t[i];
ix = i;
}
if (t[i] > y) {
y = t[i];
iy = i;
}
}
z = 0; n = 0;
for (i = 0; i < 5; i++) {
if (i != ix && i != iy) z+= t[i], n++;
}
z = z/n;
return z;
}
void print_flag()
{
#ifdef NTL_TBL_REM
printf("TBL_REM ");
#else
printf("DEFAULT ");
#endif
printf("\n");
}
int main()
{
_ntl_gmp_hack = 0;
long n, k;
n = 200;
k = 10*NTL_ZZ_NBITS;
ZZ p;
RandomLen(p, k);
ZZ_p::init(p); // initialization
ZZ_pX f, g, h, r1, r2, r3;
random(g, n); // g = random polynomial of degree < n
random(h, n); // h = " "
random(f, n); // f = " "
SetCoeff(f, n); // Sets coefficient of X^n to 1
// For doing arithmetic mod f quickly, one must pre-compute
// some information.
ZZ_pXModulus F;
build(F, f);
PlainMul(r1, g, h); // this uses classical arithmetic
PlainRem(r1, r1, f);
MulMod(r2, g, h, F); // this uses the FFT
MulMod(r3, g, h, f); // uses FFT, but slower
// compare the results...
if (r1 != r2) {
printf("999999999999999 ");
print_flag();
return 0;
}
else if (r1 != r3) {
printf("999999999999999 ");
print_flag();
return 0;
}
double t;
long i;
long iter;
n = 1024;
k = 1024;
RandomLen(p, k);
ZZ_p::init(p);
ZZ_pX j1, j2, j3;
random(j1, n);
random(j2, n);
mul(j3, j1, j2);
iter = 1;
do {
t = GetTime();
for (i = 0; i < iter; i++) {
FFTMul(j3, j1, j2);
}
t = GetTime() - t;
iter = 2*iter;
} while(t < 1);
iter = iter/2;
iter = long((2/t)*iter) + 1;
double tvec[5];
long w;
for (w = 0; w < 5; w++) {
t = GetTime();
for (i = 0; i < iter; i++) {
FFTMul(j3, j1, j2);
}
t = GetTime() - t;
tvec[w] = t;
}
t = clean_data(tvec);
t = floor((t/iter)*1e12);
if (t < 0 || t >= 1e15)
printf("999999999999999 ");
else
printf("%015.0f ", t);
printf(" [%ld] ", iter);
print_flag();
return 0;
}
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