void FractalTexture::updateCorners() {
#ifdef ROE_FRACTAL_GMP_USE_C
mpf_div_ui(xPos, m_width , 2);
mpf_div_ui(yPos, m_height, 2);
mpf_sub(m_xUpLt, m_xCenter, xPos);
mpf_add(m_yUpLt, m_yCenter, yPos);
#else
m_xUpLt = m_xCenter-0.5*m_width;
m_yUpLt = m_yCenter+0.5*m_height;
#endif
}
/* merit (rop, t, v, m) -- calculate merit for spectral test result in
dimension T, see Knuth p. 105. BUGS: Only valid for 2 <= T <=
6. */
void
merit (mpf_t rop, unsigned int t, mpf_t v, mpz_t m)
{
int f;
mpf_t f_m, f_const, f_pi;
mpf_init (f_m);
mpf_set_z (f_m, m);
mpf_init_set_d (f_const, M_PI);
mpf_init_set_d (f_pi, M_PI);
switch (t)
{
case 2: /* PI */
break;
case 3: /* PI * 4/3 */
mpf_mul_ui (f_const, f_const, 4);
mpf_div_ui (f_const, f_const, 3);
break;
case 4: /* PI^2 * 1/2 */
mpf_mul (f_const, f_const, f_pi);
mpf_div_ui (f_const, f_const, 2);
break;
case 5: /* PI^2 * 8/15 */
mpf_mul (f_const, f_const, f_pi);
mpf_mul_ui (f_const, f_const, 8);
mpf_div_ui (f_const, f_const, 15);
break;
case 6: /* PI^3 * 1/6 */
mpf_mul (f_const, f_const, f_pi);
mpf_mul (f_const, f_const, f_pi);
mpf_div_ui (f_const, f_const, 6);
break;
default:
fprintf (stderr,
"spect (merit): can't calculate merit for dimensions > 6\n");
mpf_set_ui (f_const, 0);
break;
}
/* rop = v^t */
mpf_set (rop, v);
for (f = 1; f < t; f++)
mpf_mul (rop, rop, v);
mpf_mul (rop, rop, f_const);
mpf_div (rop, rop, f_m);
mpf_clear (f_m);
mpf_clear (f_const);
mpf_clear (f_pi);
}
static void mpc_cis(mpc_t res, mpf_t theta) {
mpf_t a;
mpf_init(a); mpf_set(a, theta);
//res = exp(i a)
// = cos a + i sin a
//converges quickly near the origin
mpf_t f0;
mpf_ptr rx = mpc_re(res), ry = mpc_im(res);
int i;
int toggle = 1;
mpf_init(f0);
mpf_set(f0, a);
mpf_set_ui(rx, 1);
mpf_set(ry, f0);
i = 1;
for(;;) {
toggle = !toggle;
i++;
mpf_div_ui(f0, f0, i);
mpf_mul(f0, f0, a);
if (toggle) {
mpf_add(rx, rx, f0);
} else {
mpf_sub(rx, rx, f0);
}
i++;
mpf_div_ui(f0, f0, i);
mpf_mul(f0, f0, a);
if (toggle) {
mpf_add(ry, ry, f0);
} else {
mpf_sub(ry, ry, f0);
}
if (mpf_sgn(f0) > 0) {
if (mpf_cmp(f0, epsilon) < 0) break;
} else {
if (mpf_cmp(f0, negepsilon) > 0) break;
}
}
mpf_clear(f0);
mpf_clear(a);
}
static void mpf_exp(mpf_t res, mpf_t pwr) {
mpf_t a;
mpf_t f0;
int i;
mpf_init(a); mpf_set(a, pwr);
mpf_init(f0);
mpf_set(f0, a);
mpf_add_ui(res, a, 1);
for (i=2;;i++) {
mpf_mul(f0, f0, a);
mpf_div_ui(f0, f0, i);
if (mpf_sgn(f0) > 0) {
if (mpf_cmp(f0, epsilon) < 0) break;
} else {
if (mpf_cmp(f0, negepsilon) > 0) break;
}
mpf_add(res, res, f0);
}
mpf_clear(f0);
mpf_clear(a);
}
/*
* Evaluate the series 1/0! + 1/1! + 1/2! + 1/3! + 1/4! ...
* On input, 'bits' is the desired precision in bits.
* On output, e' contains the calculated value.
*/
static void calculateE(
unsigned bits,
mpf_t e)
{
mpf_t lastE;
mpf_t invFact; /* 1/2!, 1/3!, 1/4!, etc. */
unsigned term; /* 2, 3, 4... */
/* initial conditions, including the first two terms */
mpf_init_set_ui(lastE, 0);
mpf_set_ui(e, 2);
mpf_init_set_ui(invFact, 1); /* 1/1! */
term = 2;
for(;;) {
/* invFact /= (term) */
mpf_div_ui(invFact, invFact, term);
/* e += 1 / (term!) */
mpf_add(e, e, invFact);
/* if e == lastE, within the requested precision, we're done */
if(mpf_eq(e, lastE, bits)) {
break;
}
mpf_set(lastE, e);
term++;
}
/* free memory associated with mpf_t's we allocated */
mpf_clear(lastE);
mpf_clear(invFact);
}
static void precision_init(int prec) {
int i;
mpf_t f0;
mpf_set_default_prec(prec);
mpf_init2(epsilon, 2);
mpf_init2(negepsilon, 2);
mpf_init(recipeulere);
mpf_init(pi);
mpf_init(eulere);
mpf_set_ui(epsilon, 1);
mpf_div_2exp(epsilon, epsilon, prec);
mpf_neg(negepsilon, epsilon);
mpf_init(f0);
mpf_set_ui(eulere, 1);
mpf_set_ui(f0, 1);
for (i=1;; i++) {
mpf_div_ui(f0, f0, i);
if (mpf_cmp(f0, epsilon) < 0) {
break;
}
mpf_add(eulere, eulere, f0);
}
mpf_clear(f0);
mpf_ui_div(recipeulere, 1, eulere);
compute_pi(prec);
}
/**
* void calculate_a()
*
* Descricao:
* Calcula o valor do "pi" na n-esima iteracao.
*
* Parametros de entrada:
* -
*
* Parametros de retorno:
* -
*/
void calculate_pi(){
mpf_add(pi[n_count], a_n[n_count+1], b_n[n_count+1]);
mpf_pow_ui(pi[n_count], pi[n_count], 2);
mpf_div_ui(pi[n_count], pi[n_count], 4);
mpf_div(pi[n_count], pi[n_count], t_n[n_count+1]);
}
void *thread2(void *param)
{
mpf_add(x, sqrtx, invsqrtx);
mpf_div_ui(x, x, 2);
mpf_add_ui(aux1, x, 1);
mpf_mul(aux1 ,p, aux1);
pthread_exit(0);
}
static int
mixed (void)
{
int n1;
int n2;
int i = 121;
#ifndef NPRINTF_L
long double d = 1. / 31.;
#endif
mpf_t mpf;
mpq_t mpq;
mpz_t mpz;
mpfr_t x;
mpfr_rnd_t rnd;
mpf_init (mpf);
mpf_set_ui (mpf, 40);
mpf_div_ui (mpf, mpf, 31); /* mpf = 40.0 / 31.0 */
mpq_init (mpq);
mpq_set_ui (mpq, 123456, 4567890);
mpz_init (mpz);
mpz_fib_ui (mpz, 64);
mpfr_init (x);
mpfr_set_str (x, "-12345678.875", 10, MPFR_RNDN);
rnd = MPFR_RNDD;
check_vsprintf ("121%", "%i%%", i);
check_vsprintf ("121% -1.2345678875E+07", "%i%% %RNE", i, x);
check_vsprintf ("121, -12345679", "%i, %.0Rf", i, x);
check_vsprintf ("10610209857723, -1.2345678875e+07", "%Zi, %R*e", mpz, rnd,
x);
check_vsprintf ("-12345678.9, 121", "%.1Rf, %i", x, i);
check_vsprintf ("-12345678, 1e240/45b352", "%.0R*f, %Qx", MPFR_RNDZ, x, mpq);
n1 = check_vsprintf ("121, -12345678.875000000000, 1.290323", "%i, %.*Rf, %Ff%n",
i, 12, x, mpf, &n2);
if (n1 != n2)
{
printf ("error in number of characters written by mpfr_vsprintf\n");
printf ("expected: %d\n", n2);
printf (" got: %d\n", n1);
exit (1);
}
#ifndef NPRINTF_L
check_vsprintf ("00000010610209857723, -1.2345678875e+07, 0.032258",
"%.*Zi, %R*e, %Lf", 20, mpz, rnd, x, d);
#endif
mpf_clear (mpf);
mpq_clear (mpq);
mpz_clear (mpz);
mpfr_clear (x);
return 0;
}
/* New calculate function. */
ordinal_number_t cache_calculator(render_t* handle,const view_position_t render_position)
{
/* Volatile data. */
ordinal_number_t* help;
complex_number_t complex_position;
view_position_t shift;
real_number_t scaling_factor;
mpf_t help_mpf;
mpf_t help_two;
mpf_set_default_prec(sizeof(char)*handle->prec);
mpf_init(help_mpf);
mpf_init(Re(complex_position));
mpf_init(Im(complex_position));
mpf_init(scaling_factor);
mpf_init(help_two);
/* Check if the point has been calculated already. */
help=handle->points+render_position.y*handle->geometry.width+render_position.x;
if(*help==0)
{
/* Has not been calculated till now, calculate the iteration. */
/* Precalculate scaling factor and center shift for speed reasons. */
mpf_div_ui(scaling_factor,handle->scale,handle->geometry.width);
shift.x=handle->geometry.width/2;
shift.y=handle->geometry.height/2;
/* Calculate the iteration. */
mpf_set_si(help_two,(render_position.x-shift.x));
mpf_mul(help_mpf,scaling_factor,help_two);
mpf_add(complex_position.real_part,help_mpf,handle->center.real_part);
mpf_set_si(help_two,(render_position.y-shift.y));
mpf_mul(help_mpf,scaling_factor,help_two);
mpf_sub(Im(complex_position),Im(handle->center),help_mpf);
*help=(*handle->fractal_facility->facility.fractal.calculate_function)(handle->fractal,&complex_position);
}
mpf_clear(help_mpf);
mpf_clear(Re(complex_position));
mpf_clear(Im(complex_position));
mpf_clear(scaling_factor);
mpf_clear(help_two);
/* Return the iteration. */
return(*help);
//return(0);
}
void
mpc_mod (mpc_t *rop, mpc_t op1, mpc_t op2)
{
/* I am 90% sure that this doesn't work. However, it works for
* integers, so I'll put off fixing it for a little while.
*/
mpf_t hold_op1;
mpf_t hold_op2;
mpf_t hold_res;
unsigned int prec;
mpf_init (hold_op1);
mpf_init (hold_op2);
mpf_init (hold_res);
mpf_set_z (hold_op1, op1.object);
mpf_set_z (hold_op2, op2.object);
// Get the largest precision.
prec = (op1.precision > op2.precision) ? op1.precision : op2.precision;
// Set the scalar values
while (op1.precision-- > 0)
mpf_div_ui (hold_op1, hold_op1, 10);
while (op2.precision-- > 0)
mpf_div_ui (hold_op2, hold_op2, 10);
// Get the value
mpf_div (hold_res, hold_op1, hold_op2);
mpf_floor (hold_res, hold_res);
mpf_mul (hold_res, hold_res, hold_op2);
mpf_sub (hold_res, hold_op1, hold_res);
for (rop->precision = prec; prec > 0; prec--)
mpf_mul_ui (hold_res, hold_res, 10);
mpz_set_f (rop->object, hold_res);
}
int
main () {
int i, ix, r, max = 500;
mpf_t n;
mpf_init2(n, PREC);
for (i = LIMIT; i > 0; i--) {
mpf_set_ui(n, 1);
mpf_div_ui(n,n,i);
r = cycle(n);
if ( r>max) {
ix = i;
max = r;
break;
}
//printf("%d for i %d\n", cycle(n), i);
}
mpf_set_ui(n, 1);
mpf_div_ui(n,n,ix);
printf("Solution is %d with %d cycles\n", ix, cycle(n));
}
// The Brent-Salamin algorithm
int main(int argc, char* argv[]) {
if (argc < 2) return -1;
int n = (int)strtol(argv[1], NULL, 10);
mpf_set_default_prec(1000);
mpf_t a, b, t, c, sum;
// a=1
mpf_init_set_ui(a, 1);
mpf_init_set_ui(sum, 0);
mpf_init(b);
mpf_init(t);
mpf_init(c);
mpf_init(sum);
// b=1/sqrt(2)
mpf_sqrt_ui(b, 2);
mpf_ui_div(b, 1, b);
// n次迭代的误差小于\frac{2^{n+9}}{20^{2n+1}}
for (int i = 1; i <= n; ++i) {
// t=(a+b)/2
mpf_add(t, a, b);
mpf_div_ui(t, t, 2);
// b=sqrt(a*b);
mpf_mul(b, a, b);
mpf_sqrt(b, b);
// a=t
mpf_swap(t, a);
mpf_mul(t, a, a);
mpf_mul(c, b, b);
mpf_sub(c, t, c);
mpf_mul_2exp(c, c, i + 1);
mpf_add(sum, sum, c);
}
mpf_mul(t, a, a);
mpf_mul_ui(t, t, 4);
mpf_ui_sub(sum, 1, sum);
mpf_div(t, t, sum);
mpf_out_str(stdout, 10, 0, t);
printf("\n");
mpf_clear(a);
mpf_clear(b);
mpf_clear(t);
mpf_clear(c);
mpf_clear(sum);
return 0;
}
int main(int argc,char *argv[])
{
mpf_t mpfVal,mpf1;
unsigned long i;
mpf_set_default_prec(9000);
mpf_init_set_ui(mpf1,1);
printf ("%ld\n",mpf_get_default_prec());
for (i=997; i>=997; i--) {
mpf_init(mpfVal);
mpf_div_ui(mpfVal,mpf1,i);
printf("%ld: ",i);
(void) mpf_out_str(stdout,10,2000,mpfVal);
mpf_clear(mpfVal);
}
}
void correction_factor_Q(mpf_t Q, int N,mpf_t rho,int k){
unsigned long int f;
mpf_t tmp,tmp1,tmp2;
/*
if (PNK_N_1_rho_1_PN == 0)
cout << "Algun factor es 0 N = " << N
<< " rho = " << rho
<< " k = " << k
<< " P__0 = " << P__0
<< " P__N = " << P__N << endl;
*/
mpf_init(tmp);
mpf_init_set_d(tmp1,pow(N,k-1)); // N^(k-1)
f = 1;
mpf_set_ui(Q,0);
for (unsigned long int j = k;j < N;j++) {
/*Q += (N - j) * pow(N,j) * pow(rho,j - k) * P__0 * N_k_1 / (factorial(j - k) * PNK_N_1_rho_1_PN); */
/* Q += [(N - j) * N^j * rho^(j - k) / (j - k)!] * P__0 * N_k_1 / PNK_N_1_rho_1_PN; */
mpf_mul_ui(tmp1,tmp1,N); // * N
if (j - k > 1) mpf_div_ui(tmp1,tmp1,j - k); // / (j - k)
mpf_mul_ui(tmp,tmp1,N - j); // * (N - j)
mpf_add(Q,Q,tmp); // Q += (N - j) * N^j * rho^(j - k) / (j - k)!
mpf_mul(tmp1,tmp1,rho); // * rho
}
mpf_init(tmp2);
mpf_ui_sub(tmp2,1,P__N); // 1 - P__N
mpf_pow_ui(tmp1,tmp2,k); // (1 - P__N)^k
mpf_mul(tmp2,tmp2,rho); // rho * (1 - P__N)
mpf_ui_sub(tmp2,1,tmp2); // 1 - rho * (1 - P__N)
mpf_mul(Q,Q,P__0); // * P__0
mpf_mul_ui(Q,Q,factorial(N-k-1)); // * (N - k - 1)!
/* pow(1 - P__N,k) * factorial(N) * (1 - rho * (1 - P__N)) */
mpf_mul(tmp2,tmp1,tmp2); // (1 - P__N)^k * (1 - rho * (1 - P__N))
mpf_mul_ui(tmp2,tmp2,factorial(N)); // (1 - P__N)^k * (1 - rho * (1 - P__N)) * N!
mpf_div(Q,Q,tmp2); // / [(1 - P__N)^k * (1 - rho * (1 - P__N)) * N!]
mpf_clear(tmp);
mpf_clear(tmp1);
mpf_clear(tmp2);
}
void
x2 (mpf_t V, /* result */
unsigned long int X[], /* data */
unsigned int k, /* #of categories */
void (P) (mpf_t, unsigned long int, void *), /* probability func */
void *x, /* extra user data passed to P() */
unsigned long int n) /* #of samples */
{
unsigned int f;
mpf_t f_t, f_t2; /* temp floats */
mpf_init (f_t); mpf_init (f_t2);
mpf_set_ui (V, 0);
for (f = 0; f < k; f++)
{
if (g_debug > DEBUG_2)
fprintf (stderr, "%u: P()=", f);
mpf_set_ui (f_t, X[f]);
mpf_mul (f_t, f_t, f_t); /* f_t = X[f]^2 */
P (f_t2, f, x); /* f_t2 = Pr(f) */
if (g_debug > DEBUG_2)
mpf_out_str (stderr, 10, 2, f_t2);
mpf_div (f_t, f_t, f_t2);
mpf_add (V, V, f_t);
if (g_debug > DEBUG_2)
{
fprintf (stderr, "\tV=");
mpf_out_str (stderr, 10, 2, V);
fprintf (stderr, "\t");
}
}
if (g_debug > DEBUG_2)
fprintf (stderr, "\n");
mpf_div_ui (V, V, n);
mpf_sub_ui (V, V, n);
mpf_clear (f_t); mpf_clear (f_t2);
}
void
ks_table (mpf_t p, mpf_t val, const unsigned int n)
{
/* We use Eq. (27), Knuth p.58, skipping O(1/n) for simplicity.
This shortcut will result in too high probabilities, especially
when n is small.
Pr(Kp(n) <= s) = 1 - pow(e, -2*s^2) * (1 - 2/3*s/sqrt(n) + O(1/n)) */
/* We have 's' in variable VAL and store the result in P. */
mpf_t t1, t2;
mpf_init (t1); mpf_init (t2);
/* t1 = 1 - 2/3 * s/sqrt(n) */
mpf_sqrt_ui (t1, n);
mpf_div (t1, val, t1);
mpf_mul_ui (t1, t1, 2);
mpf_div_ui (t1, t1, 3);
mpf_ui_sub (t1, 1, t1);
/* t2 = pow(e, -2*s^2) */
#ifndef OLDGMP
mpf_pow_ui (t2, val, 2); /* t2 = s^2 */
mpf_set_d (t2, exp (-(2.0 * mpf_get_d (t2))));
#else
/* hmmm, gmp doesn't have pow() for floats. use doubles. */
mpf_set_d (t2, pow (M_E, -(2 * pow (mpf_get_d (val), 2))));
#endif
/* p = 1 - t1 * t2 */
mpf_mul (t1, t1, t2);
mpf_ui_sub (p, 1, t1);
mpf_clear (t1); mpf_clear (t2);
}
int
main (void)
{
mpf_t f;
tests_start ();
mpf_init2 (f, 200L);
mpf_set_ui (f, 0L);
one (f, 1);
mpf_set_ui (f, 1L);
all (f, 1);
mpf_set_ui (f, 1L);
mpf_div_2exp (f, f, 1L);
all (f, 0);
mpf_set_ui (f, 1L);
mpf_div_2exp (f, f, 5000L);
all (f, 0);
mpf_set_ui (f, 1L);
mpf_mul_2exp (f, f, 5000L);
all (f, 1);
mpf_set_str (f, "0.5", 10);
all (f, 0);
mpf_set_ui (f, 1L);
mpf_div_ui (f, f, 3L);
all (f, 0);
mpf_clear (f);
tests_end ();
exit (0);
}
void agm (const mpf_t in1, const mpf_t in2, mpf_t out1, mpf_t out2) {
mpf_add (out1, in1, in2);
mpf_div_ui (out1, out1, 2);
mpf_mul (out2, in1, in2);
mpf_sqrt (out2, out2);
}
/* Pzf(p, s, x) -- Probability for category S in mpz_freqt(). It's
1/d for all S. X is a pointer to an unsigned int holding 'd'. */
static void
Pzf (mpf_t p, unsigned long int s, void *x)
{
mpf_set_ui (p, 1);
mpf_div_ui (p, p, *((unsigned int *) x));
}
int pi_worker( unsigned long start_x , unsigned long end_x )
{
mpf_t _4 ;
unsigned long x ;
int flag ;
mpf_t pi_incr ;
mpf_t pi ;
char output[ 1024 + 1 ] ;
DC4CSetAppLogFile( "pi_worker" );
SetLogLevel( LOGLEVEL_INFO );
InfoLog( __FILE__ , __LINE__ , "pi_worker" );
if( start_x % 2 == 0 )
start_x++;
if( end_x % 2 == 0 )
end_x++;
if( start_x < 1 )
start_x = 1 ;
if( end_x < start_x )
end_x = start_x ;
mpf_init_set_d( _4 , 4.00 );
mpf_init( pi_incr );
mpf_init( pi );
/*
0 1 2 3 4
1234567890123456789012345678901234567890
1 1 1 1 1
PI = 4 * ( _ - _ + _ - _ + _ ... ) = 3.1415926535897932384626433832795
1 3 5 7 9
4 1000000000 3.14159265158640477943 14.962s
1000000000 3.14159265557624002834 56.315s
4 100000000 3.14159263358945602263 1.460s
100000000 3.14159267358843756024 5.888s
10000000 3.14159285358961767296 0.621s
1000000 3.14159465358577968703 0.091s
100000 3.14161265318979787768 0.011s
10000 3.14179261359579270235 0.003s
*/
mpf_set_d( pi , 0.00 );
flag = ((start_x/2)%2)?'-':' ' ;
for( x = start_x ; x <= end_x ; x += 2 )
{
mpf_div_ui( pi_incr , _4 , x );
if( flag == '-' )
mpf_neg( pi_incr , pi_incr );
mpf_add( pi , pi , pi_incr );
flag = '-' + ' ' - flag ;
}
memset( output , 0x00 , sizeof(output) );
gmp_snprintf( output , sizeof(output)-1 , "%.Ff" , pi );
InfoLog( __FILE__ , __LINE__ , "pi_worker() - start_x[%lu] end_x[%lu] - PI[%s]" , start_x , end_x , output );
DC4CSetReplyInfo( output );
mpf_clear( _4 );
mpf_clear( pi_incr );
mpf_clear( pi );
return 0;
}
int
main (int argc, char **argv)
{
mp_size_t size;
mp_exp_t exp;
int reps = 10000;
int i;
mpf_t u, v, w, x;
mp_size_t bprec = SIZE * GMP_LIMB_BITS;
mpf_t rerr, limit_rerr;
unsigned long ulimb, vlimb;
int single_flag;
tests_start ();
if (argc > 1)
{
reps = strtol (argv[1], 0, 0);
if (argc > 2)
bprec = strtol (argv[2], 0, 0);
}
mpf_set_default_prec (bprec);
mpf_init (rerr);
mpf_init (limit_rerr);
mpf_init (u);
mpf_init (v);
mpf_init (w);
mpf_init (x);
for (i = 0; i < reps; i++)
{
mp_size_t res_prec;
res_prec = urandom () % bprec + 1;
mpf_set_prec (w, res_prec);
mpf_set_prec (x, res_prec);
mpf_set_ui (limit_rerr, 1);
mpf_div_2exp (limit_rerr, limit_rerr, res_prec - 1);
single_flag = 0;
if ((urandom () & 1) != 0)
{
size = urandom () % (2 * SIZE) - SIZE;
exp = urandom () % SIZE;
mpf_random2 (u, size, exp);
}
else
{
ulimb = urandom ();
mpf_set_ui (u, ulimb);
single_flag = 1;
}
if ((urandom () & 1) != 0)
{
size = urandom () % (2 * SIZE) - SIZE;
exp = urandom () % SIZE;
mpf_random2 (v, size, exp);
}
else
{
vlimb = urandom ();
mpf_set_ui (v, vlimb);
single_flag = 2;
}
if (mpf_sgn (v) == 0)
continue;
mpf_div (w, u, v);
mpf_mul (x, w, v);
mpf_reldiff (rerr, u, x);
if (mpf_cmp (rerr, limit_rerr) > 0)
{
printf ("ERROR in mpf_mul or mpf_div after %d tests\n", i);
printf (" u = "); mpf_dump (u);
printf (" v = "); mpf_dump (v);
printf (" x = "); mpf_dump (x);
printf (" w = "); mpf_dump (w);
abort ();
}
if (single_flag == 2)
{
mpf_div_ui (x, u, vlimb);
mpf_reldiff (rerr, w, x);
if (mpf_cmp (rerr, limit_rerr) > 0)
{
printf ("ERROR in mpf_div or mpf_div_ui after %d tests\n", i);
printf (" u = "); mpf_dump (u);
printf (" v = "); mpf_dump (v);
printf (" x = "); mpf_dump (x);
printf (" w = "); mpf_dump (w);
abort ();
}
}
if (single_flag == 1)
{
mpf_ui_div (x, ulimb, v);
mpf_reldiff (rerr, w, x);
if (mpf_cmp (rerr, limit_rerr) > 0)
{
printf ("ERROR in mpf_div or mpf_ui_div after %d tests\n", i);
printf (" u = "); mpf_dump (u);
printf (" v = "); mpf_dump (v);
printf (" x = "); mpf_dump (x);
printf (" w = "); mpf_dump (w);
abort ();
}
}
}
mpf_clear (rerr);
mpf_clear (limit_rerr);
mpf_clear (u);
mpf_clear (v);
mpf_clear (w);
mpf_clear (x);
tests_end ();
exit (0);
}
long int julia(const mpf_t x, const mpf_t xr, long int xres, const mpf_t y, const mpf_t yr, long int yres, mpf_t *c, int flag, long int max_iteration,
float *iterations, int my_rank, int p, MPI_Comm comm)
{
double t0 = MPI_Wtime();
int i,j;
//------------julia gmp
const double maxRadius = 4.0;
// double xi, yi, savex, savex2, savey, radius;
mpf_t xi, yi, x_min, x_max, y_min, y_max, savex, savex2, savey, radius, xgap, ygap, savex_a, savex_b, savey_a, savey_b, tmp, tmp1;
mpf_init(xi);
mpf_init(yi);
mpf_init(x_min);
mpf_init(x_max);
mpf_init(y_min);
mpf_init(y_max);
mpf_init(savex);
mpf_init(savex2);
mpf_init(savey);
mpf_init(radius);
mpf_init(xgap);
mpf_init(ygap);
mpf_init(savex_a);
mpf_init(savex_b);
mpf_init(savey_a);
mpf_init(savey_b);
mpf_init(tmp);
mpf_init(tmp1);
//double x_min = x - xr;
mpf_sub(x_min, x, xr);
//double x_max = x + xr;
mpf_add(x_max, x, xr);
//double y_min = y - yr;
mpf_sub(y_min, y, yr);
//double y_max = y + yr;
mpf_add(y_max, y, yr);
// spaceing between x and y points
//double xgap = (x_max - x_min) / xres;
mpf_sub(xgap, x_max, x_min);
mpf_div_ui(xgap, xgap, xres);
//double ygap = (y_max - y_min) / yres;
mpf_sub(ygap, y_max, y_min);
mpf_div_ui(ygap, ygap, yres);
//----------------------------
long long int iteration;
long long int total_number_iterations = 0;
int k = 0;
for (j = 0; j < yres; j++){
for (i = 0; i < xres; i++){
//xi = x_min + i * xgap;
mpf_mul_ui(tmp, xgap, i);
mpf_add(xi, x_min, tmp);
//yi = y_min + j * ygap;
mpf_mul_ui(tmp, ygap, j);
mpf_add(yi, y_min, tmp);
//flag betwee[n julia or mandelbrot
//savex = flag * c[0] + (1 - flag) * xi;
mpf_mul_ui(savex_a, c[0], flag);
mpf_mul_ui(savex_b, xi, (1-flag));
mpf_add(savex, savex_a, savex_b);
//savey = flag * c[1] + (1 - flag) * yi;
mpf_mul_ui(savey_a, c[1], flag);
mpf_mul_ui(savey_b, yi, (1-flag));
mpf_add(savey, savey_a, savey_b);
//radius = 0;
mpf_set_ui(radius, 0);
iteration = 0;
//while ((radius <= maxRadius) && (iteration < max_iteration)){
while ((mpf_cmp_d(radius, maxRadius)<=0) && (iteration < max_iteration)){
//savex2 = xi;
mpf_add_ui(savex2, xi, 0);
//xi = xi * xi - yi * yi + savex;
mpf_mul(xi, xi, xi);
mpf_mul(tmp, yi, yi);
mpf_sub(xi, xi, tmp);
mpf_add(xi, xi, savex);
//yi = 2.0f * savex2 * yi + savey;
mpf_mul_ui(tmp, savex2, 2);
mpf_mul(yi, yi, tmp);
mpf_add(yi, yi, savey);
//radius = xi * xi + yi * yi;
mpf_mul(tmp, xi, xi);
mpf_mul(tmp1, yi, yi);
mpf_add(radius, tmp, tmp1);
iteration++;
}
total_number_iterations += iteration;
float *p = iterations + k*xres + i;
//if (radius > maxRadius){
if (mpf_cmp_d(radius, maxRadius)>0){
//float zn = sqrt(xi*xi + yi*yi);
mpf_t zn;
mpf_init(zn);
mpf_mul(tmp, xi, xi);
mpf_mul(tmp1, yi, yi);
mpf_add(zn, tmp, tmp1);
mpf_sqrt(zn, zn);
double n = mpf_get_d(zn);
//float nu = log(log(zn) / log(2))/log(2);
double nu = log(log(n) / log(2))/log(2);
//the point has escaped at iteration at any of the iterations 0,1,2,3...
*p = iteration + 1 - nu;
}
else
// zij stays within the region up to max_iteration
{
assert(iteration==max_iteration);
*p = -1;
}
}
k++;
}
//reduce max iteration count
long long int total_reduced_iterations = -1;
//printf("rank: %i, total_reduced_iterations: %i\n", my_rank, total_number_iterations);
MPI_Reduce(&total_number_iterations, &total_reduced_iterations, 1, MPI_LONG_LONG_INT, MPI_SUM, 0, comm);
double t4 = MPI_Wtime();
double max_reduced_time = -1;
double total_time = t4 - t0;
MPI_Reduce(&total_time, &max_reduced_time, 1, MPI_DOUBLE, MPI_MAX, 0, comm);
printf("np: %i, time: %f , iterations: %lld\n",p, max_reduced_time, total_reduced_iterations);
//clear
//printf("proc: %i, total time: %lf sec, init: %lf sec, calc: %lf sec, collect: %lf\n", my_rank, t4-t0, t1-t0, t2-t1, t3-t2);
return total_reduced_iterations;
}
void jarvis_hypercube_approximation
(int C, /* Number of types of customers*/
int N, /* Number of servers */
mpf_t *lambda, /* arrive rate according to a Poisson process per type */
mpf_t **Tao, /* expected service time for service i and customer of node m */
int **a, /* for customers of type m, the list of preferred servers */
mpf_t **f) {
mpf_t Lambda;
mpf_t Rho;
mpf_t tao;
mpf_t *rho;
mpf_t *new_rho;
mpf_t *Q_N_rho;
mpf_t max_change;
mpf_t tmp;
mpf_init(Lambda);
rho = new mpf_t [N];
for (int i = 0; i < N;i++)
mpf_init(rho[i]);
mpf_init(tao);
mpf_init_set_ui(P__0,1);
mpf_init_set_ui(P__N,1);
Q_N_rho = new mpf_t [N];
for (int i = 0;i < N;i++)
mpf_init(Q_N_rho[i]);
new_rho = new mpf_t [N];
for (int i = 0;i < N;i++)
mpf_init(new_rho[i]);
mpf_init(Rho);
mpf_init(max_change);
mpf_init(tmp);
/* INITIALIZE: */
for (int m = 0;m < C;m++)
mpf_add(Lambda,Lambda,lambda[m]);
/* Busy probability rho_i */
for (int i = 0; i < N;i++) {
for (int m = 0; m < C;m++) {
if (a[m][0] == i) {
mpf_mul(tmp,lambda[m],Tao[i][m]);
mpf_add(rho[i],rho[i],tmp);
}
}
}
/* mean service time 'tao' */
for (int m = 0;m < C;m++) {
mpf_mul(tmp,lambda[m],Tao[a[m][0]][m]);
mpf_add(tao,tao,tmp);
}
mpf_div(tao,tao,Lambda);
/* Define intial values for P__0 and P__N */
for (int i = 0;i < N;i++) {
mpf_ui_sub(tmp,1,rho[i]);
mpf_mul(P__0,P__0,tmp);
}
for (int i = 0;i < N;i++)
mpf_mul(P__N,P__N,rho[i]);
/* ITERATION: */
do {
/*
cout << "'rho_i':";
for (int i = 0;i < N;i++) cout << " " << mpf_get_d(rho[i]);
cout << endl;
*/
/* traffic intensity */
mpf_mul(Rho,Lambda,tao);
mpf_div_ui(Rho,Rho,N);
/* Compute Q(N,'rho',k) */
for (int k = 0;k < N;k++)
correction_factor_Q(Q_N_rho[k],N,Rho,k);
/* Compute f_{im} */
mpf_t rho_a_ml;
mpf_init(rho_a_ml);
for (int i = 0;i < N;i++) {
for (int m = 0;m < C;m++) {
mpf_set_ui(rho_a_ml,1);
for (int k = 0;k < N;k++) {
if (a[m][k] == i) {
mpf_ui_sub(tmp,1,rho[i]);
mpf_mul(tmp,tmp,rho_a_ml);
mpf_mul(f[i][m],tmp,Q_N_rho[k]);
break;
}
mpf_mul(rho_a_ml,rho_a_ml,rho[a[m][k]]);
}
}
}
mpf_clear(rho_a_ml);
/* Aproximation of 'rho'_i */
mpf_t Vi;
mpf_init(Vi);
mpf_init(rho_a_ml);
for (int i = 0;i < N;i++) {
mpf_set_ui(Vi,0);
for (int m = 0;m < C;m++) {
mpf_set_ui(rho_a_ml,1);
for (int k = 0;k < N;k++) {
if (a[m][k] == i) {
mpf_mul(tmp,lambda[m],Tao[i][m]);
mpf_mul(tmp,tmp,Q_N_rho[k]);
mpf_mul(tmp,tmp,rho_a_ml);
mpf_add(Vi,Vi,tmp);
/* Vi += lambda[m] * Tao[i][m] * Q_N_rho[k] * rho_a_ml */
break;
}
mpf_mul(rho_a_ml,rho_a_ml,rho[a[m][k]]);
}
}
mpf_add_ui(tmp,Vi,1);
mpf_div(new_rho[i],Vi,tmp);
}
mpf_clear(rho_a_ml);
mpf_clear(Vi);
/* Convergence criterion */
mpf_set_ui(max_change,0);
for (int i = 0;i < N;i++) {
mpf_sub(tmp,rho[i],new_rho[i]);
mpf_abs(tmp,tmp);
if (mpf_cmp(tmp,max_change) > 0)
mpf_set(max_change,tmp);
}
/*
cout << "max change = " << mpf_get_d(max_change);
if (mpf_cmp_d(max_change,JARVIS_EPSILON) < 0)
cout << " **STOP**" << endl;
else
cout << "\r";
*/
if (mpf_cmp_d(max_change,JARVIS_EPSILON) < 0) break; /* STOP */
for (int i = 0;i < N;i++)
mpf_set(rho[i],new_rho[i]);
/* Compute P__0 */
mpf_set_ui(P__0,1);
for (int i = 0;i < N;i++) {
mpf_ui_sub(tmp,1,rho[i]);
mpf_mul(P__0,P__0,tmp);
}
/* Compute P__N */
mpf_t s_rho;
mpf_init(s_rho);
for (int i = 0;i < N;i++)
mpf_add(s_rho,s_rho,rho[i]);
mpf_div_ui(tmp,s_rho,N);
mpf_div(tmp,tmp,Rho);
mpf_ui_sub(P__N,1,tmp);
/* Compute mean service time 'tao' */
mpf_t aux;
mpf_set_ui(tao,0);
mpf_init(aux);
for (int m = 0;m < C;m++) {
mpf_set_ui(tmp,0);
for (int i = 0;i < N;i++) {
mpf_mul(aux,Tao[i][m],f[i][m]);
mpf_add(tmp,tmp,aux);
}
mpf_mul(tmp,lambda[m],tmp);
mpf_add(tao,tao,tmp);
}
mpf_div(tao,tao,Lambda); // / Lambda
mpf_ui_sub(aux,1,P__N); // 1 - P__N
mpf_div(tao,tao,aux); // / (1 - P__N)
mpf_clear(aux);
} while (1);
/*
cout << "finsh jarvis" << endl;
for (int i = 0;i < N;i++) {
for (int m = 0;m < C;m++) {
cout << mpf_get_d(f[i][m]) << " ";
}
cout << endl;
}
*/
mpf_clear(tmp);
mpf_clear(max_change);
mpf_clear(Rho);
for (int i = 0;i < N;i++)
mpf_clear(new_rho[i]);
delete [] new_rho;
for (int i = 0;i < N;i++)
mpf_clear(Q_N_rho[i]);
delete [] Q_N_rho;
mpf_clear(P__N);
mpf_clear(P__0);
mpf_clear(tao);
for (int i = 0;i < N;i++)
mpf_clear(rho[i]);
delete [] rho;
mpf_clear(Lambda);
}
int scanhash_m7m_hash(int thr_id, uint32_t *pdata, const uint32_t *ptarget,
uint64_t max_nonce, unsigned long *hashes_done)
{
uint32_t data[32] __attribute__((aligned(128)));
uint32_t *data_p64 = data + (M7_MIDSTATE_LEN / sizeof(data[0]));
uint32_t hash[8] __attribute__((aligned(32)));
uint8_t bhash[7][64] __attribute__((aligned(32)));
uint32_t n = pdata[19] - 1;
const uint32_t first_nonce = pdata[19];
char data_str[161], hash_str[65], target_str[65];
uint8_t *bdata = 0;
mpz_t bns[8];
int rc = 0;
int bytes, nnNonce2;
mpz_t product;
mpz_init(product);
for(int i=0; i < 8; i++){
mpz_init(bns[i]);
}
memcpy(data, pdata, 80);
sph_sha256_context ctx_final_sha256;
sph_sha256_context ctx_sha256;
sph_sha512_context ctx_sha512;
sph_keccak512_context ctx_keccak;
sph_whirlpool_context ctx_whirlpool;
sph_haval256_5_context ctx_haval;
sph_tiger_context ctx_tiger;
sph_ripemd160_context ctx_ripemd;
sph_sha256_init(&ctx_sha256);
sph_sha256 (&ctx_sha256, data, M7_MIDSTATE_LEN);
sph_sha512_init(&ctx_sha512);
sph_sha512 (&ctx_sha512, data, M7_MIDSTATE_LEN);
sph_keccak512_init(&ctx_keccak);
sph_keccak512 (&ctx_keccak, data, M7_MIDSTATE_LEN);
sph_whirlpool_init(&ctx_whirlpool);
sph_whirlpool (&ctx_whirlpool, data, M7_MIDSTATE_LEN);
sph_haval256_5_init(&ctx_haval);
sph_haval256_5 (&ctx_haval, data, M7_MIDSTATE_LEN);
sph_tiger_init(&ctx_tiger);
sph_tiger (&ctx_tiger, data, M7_MIDSTATE_LEN);
sph_ripemd160_init(&ctx_ripemd);
sph_ripemd160 (&ctx_ripemd, data, M7_MIDSTATE_LEN);
sph_sha256_context ctx2_sha256;
sph_sha512_context ctx2_sha512;
sph_keccak512_context ctx2_keccak;
sph_whirlpool_context ctx2_whirlpool;
sph_haval256_5_context ctx2_haval;
sph_tiger_context ctx2_tiger;
sph_ripemd160_context ctx2_ripemd;
do {
data[19] = ++n;
nnNonce2 = (int)(data[19]/2);
memset(bhash, 0, 7 * 64);
ctx2_sha256 = ctx_sha256;
sph_sha256 (&ctx2_sha256, data_p64, 80 - M7_MIDSTATE_LEN);
sph_sha256_close(&ctx2_sha256, (void*)(bhash[0]));
ctx2_sha512 = ctx_sha512;
sph_sha512 (&ctx2_sha512, data_p64, 80 - M7_MIDSTATE_LEN);
sph_sha512_close(&ctx2_sha512, (void*)(bhash[1]));
ctx2_keccak = ctx_keccak;
sph_keccak512 (&ctx2_keccak, data_p64, 80 - M7_MIDSTATE_LEN);
sph_keccak512_close(&ctx2_keccak, (void*)(bhash[2]));
ctx2_whirlpool = ctx_whirlpool;
sph_whirlpool (&ctx2_whirlpool, data_p64, 80 - M7_MIDSTATE_LEN);
sph_whirlpool_close(&ctx2_whirlpool, (void*)(bhash[3]));
ctx2_haval = ctx_haval;
sph_haval256_5 (&ctx2_haval, data_p64, 80 - M7_MIDSTATE_LEN);
sph_haval256_5_close(&ctx2_haval, (void*)(bhash[4]));
ctx2_tiger = ctx_tiger;
sph_tiger (&ctx2_tiger, data_p64, 80 - M7_MIDSTATE_LEN);
sph_tiger_close(&ctx2_tiger, (void*)(bhash[5]));
ctx2_ripemd = ctx_ripemd;
sph_ripemd160 (&ctx2_ripemd, data_p64, 80 - M7_MIDSTATE_LEN);
sph_ripemd160_close(&ctx2_ripemd, (void*)(bhash[6]));
for(int i=0; i < 7; i++){
set_one_if_zero(bhash[i]);
mpz_set_uint512(bns[i],bhash[i]);
}
mpz_set_ui(bns[7],0);
for(int i=0; i < 7; i++){
mpz_add(bns[7], bns[7], bns[i]);
}
mpz_set_ui(product,1);
for(int i=0; i < 8; i++){
mpz_mul(product,product,bns[i]);
}
mpz_pow_ui(product, product, 2);
bytes = mpz_sizeinbase(product, 256);
bdata = (uint8_t *)realloc(bdata, bytes);
mpz_export((void *)bdata, NULL, -1, 1, 0, 0, product);
sph_sha256_init(&ctx_final_sha256);
sph_sha256 (&ctx_final_sha256, bdata, bytes);
sph_sha256_close(&ctx_final_sha256, (void*)(hash));
int digits=(int)((sqrt((double)(nnNonce2))*(1.+EPS))/9000+75);
int iterations=20;
mpf_set_default_prec((long int)(digits*BITS_PER_DIGIT+16));
mpz_t magipi;
mpz_t magisw;
mpf_t magifpi;
mpf_t mpa1, mpb1, mpt1, mpp1;
mpf_t mpa2, mpb2, mpt2, mpp2;
mpf_t mpsft;
mpz_init(magipi);
mpz_init(magisw);
mpf_init(magifpi);
mpf_init(mpsft);
mpf_init(mpa1);
mpf_init(mpb1);
mpf_init(mpt1);
mpf_init(mpp1);
mpf_init(mpa2);
mpf_init(mpb2);
mpf_init(mpt2);
mpf_init(mpp2);
uint32_t usw_;
usw_ = sw_(nnNonce2, SW_DIVS);
if (usw_ < 1) usw_ = 1;
mpz_set_ui(magisw, usw_);
uint32_t mpzscale=mpz_size(magisw);
for(int i=0; i < NM7M; i++){
if (mpzscale > 1000) {
mpzscale = 1000;
}
else if (mpzscale < 1) {
mpzscale = 1;
}
mpf_set_ui(mpa1, 1);
mpf_set_ui(mpb1, 2);
mpf_set_d(mpt1, 0.25*mpzscale);
mpf_set_ui(mpp1, 1);
mpf_sqrt(mpb1, mpb1);
mpf_ui_div(mpb1, 1, mpb1);
mpf_set_ui(mpsft, 10);
for(int j=0; j <= iterations; j++){
mpf_add(mpa2, mpa1, mpb1);
mpf_div_ui(mpa2, mpa2, 2);
mpf_mul(mpb2, mpa1, mpb1);
mpf_abs(mpb2, mpb2);
mpf_sqrt(mpb2, mpb2);
mpf_sub(mpt2, mpa1, mpa2);
mpf_abs(mpt2, mpt2);
mpf_sqrt(mpt2, mpt2);
mpf_mul(mpt2, mpt2, mpp1);
mpf_sub(mpt2, mpt1, mpt2);
mpf_mul_ui(mpp2, mpp1, 2);
mpf_swap(mpa1, mpa2);
mpf_swap(mpb1, mpb2);
mpf_swap(mpt1, mpt2);
mpf_swap(mpp1, mpp2);
}
mpf_add(magifpi, mpa1, mpb1);
mpf_pow_ui(magifpi, magifpi, 2);
mpf_div_ui(magifpi, magifpi, 4);
mpf_abs(mpt1, mpt1);
mpf_div(magifpi, magifpi, mpt1);
mpf_pow_ui(mpsft, mpsft, digits/2);
mpf_mul(magifpi, magifpi, mpsft);
mpz_set_f(magipi, magifpi);
mpz_add(product,product,magipi);
mpz_add(product,product,magisw);
mpz_set_uint256(bns[0], (void*)(hash));
mpz_add(bns[7], bns[7], bns[0]);
mpz_mul(product,product,bns[7]);
mpz_cdiv_q (product, product, bns[0]);
if (mpz_sgn(product) <= 0) mpz_set_ui(product,1);
bytes = mpz_sizeinbase(product, 256);
mpzscale=bytes;
bdata = (uint8_t *)realloc(bdata, bytes);
mpz_export(bdata, NULL, -1, 1, 0, 0, product);
sph_sha256_init(&ctx_final_sha256);
sph_sha256 (&ctx_final_sha256, bdata, bytes);
sph_sha256_close(&ctx_final_sha256, (void*)(hash));
}
mpz_clear(magipi);
mpz_clear(magisw);
mpf_clear(magifpi);
mpf_clear(mpsft);
mpf_clear(mpa1);
mpf_clear(mpb1);
mpf_clear(mpt1);
mpf_clear(mpp1);
mpf_clear(mpa2);
mpf_clear(mpb2);
mpf_clear(mpt2);
mpf_clear(mpp2);
rc = fulltest_m7hash(hash, ptarget);
if (rc) {
if (opt_debug) {
bin2hex(hash_str, (unsigned char *)hash, 32);
bin2hex(target_str, (unsigned char *)ptarget, 32);
bin2hex(data_str, (unsigned char *)data, 80);
applog(LOG_DEBUG, "DEBUG: [%d thread] Found share!\ndata %s\nhash %s\ntarget %s", thr_id,
data_str,
hash_str,
target_str);
}
pdata[19] = data[19];
goto out;
}
} while (n < max_nonce && !work_restart[thr_id].restart);
pdata[19] = n;
out:
for(int i=0; i < 8; i++){
mpz_clear(bns[i]);
}
mpz_clear(product);
free(bdata);
*hashes_done = n - first_nonce + 1;
return rc;
}
long int julia(const mpf_t x, const mpf_t xr, long int xres, const mpf_t y, const mpf_t yr, long int yres, mpf_t *c, int flag, long int max_iteration,
float *iterations, int my_rank, int p, MPI_Comm comm)
{
double t0 = MPI_Wtime();
int i,j;
// Find how many rows per process.
int *rows;
rows = (int*)malloc(sizeof(int)*p);
for (i=0; i < p; i++)
rows[i] = yres/p;
for (i=0; i < yres % p; i++)
rows[i]++;
//allocate memory for each processor
if(my_rank > 0){
iterations = (float*)malloc( sizeof(float) * xres * rows[my_rank]);
assert(iterations);
}
//------------julia gmp
const double maxRadius = 4.0;
mpf_t xi, yi, x_min, x_max, y_min, y_max, savex, savex2, savey, radius, xgap, ygap, savex_a, savex_b, savey_a, savey_b, tmp, tmp1;
mpf_init(xi);
mpf_init(yi);
mpf_init(x_min);
mpf_init(x_max);
mpf_init(y_min);
mpf_init(y_max);
mpf_init(savex);
mpf_init(savex2);
mpf_init(savey);
mpf_init(radius);
mpf_init(xgap);
mpf_init(ygap);
mpf_init(savex_a);
mpf_init(savex_b);
mpf_init(savey_a);
mpf_init(savey_b);
mpf_init(tmp);
mpf_init(tmp1);
//double x_min = x - xr;
mpf_sub(x_min, x, xr);
//double x_max = x + xr;
mpf_add(x_max, x, xr);
//double y_min = y - yr;
mpf_sub(y_min, y, yr);
//double y_max = y + yr;
mpf_add(y_max, y, yr);
// spaceing between x and y points
//double xgap = (x_max - x_min) / xres;
mpf_sub(xgap, x_max, x_min);
mpf_div_ui(xgap, xgap, xres);
//double ygap = (y_max - y_min) / yres;
mpf_sub(ygap, y_max, y_min);
mpf_div_ui(ygap, ygap, yres);
//----------------------------
long long int iteration;
long long int total_number_iterations = 0;
int k = 0;
for (j = my_rank; j < yres; j+=p){
if(my_rank==0)
k = j; //needed for root
for (i = 0; i < xres; i++){
//xi = x_min + i * xgap;
mpf_mul_ui(tmp, xgap, i);
mpf_add(xi, x_min, tmp);
//yi = y_min + j * ygap;
mpf_mul_ui(tmp, ygap, j);
mpf_add(yi, y_min, tmp);
//flag betwee[n julia or mandelbrot
//savex = flag * c[0] + (1 - flag) * xi;
mpf_mul_ui(savex_a, c[0], flag);
mpf_mul_ui(savex_b, xi, (1-flag));
mpf_add(savex, savex_a, savex_b);
//savey = flag * c[1] + (1 - flag) * yi;
mpf_mul_ui(savey_a, c[1], flag);
mpf_mul_ui(savey_b, yi, (1-flag));
mpf_add(savey, savey_a, savey_b);
//radius = 0;
mpf_set_ui(radius, 0);
iteration = 0;
//while ((radius <= maxRadius) && (iteration < max_iteration)){
while ((mpf_cmp_d(radius, maxRadius)<=0) && (iteration < max_iteration)){
//savex2 = xi;
mpf_add_ui(savex2, xi, 0);
//xi = xi * xi - yi * yi + savex;
mpf_mul(xi, xi, xi);
mpf_mul(tmp, yi, yi);
mpf_sub(xi, xi, tmp);
mpf_add(xi, xi, savex);
//yi = 2.0f * savex2 * yi + savey;
mpf_mul_ui(tmp, savex2, 2);
mpf_mul(yi, yi, tmp);
mpf_add(yi, yi, savey);
//radius = xi * xi + yi * yi;
mpf_mul(tmp, xi, xi);
mpf_mul(tmp1, yi, yi);
mpf_add(radius, tmp, tmp1);
iteration++;
}
total_number_iterations += iteration;
float *p = iterations + k*xres + i;
//if (radius > maxRadius){
if (mpf_cmp_d(radius, maxRadius)>0){
//float zn = sqrt(xi*xi + yi*yi);
mpf_t zn;
mpf_init(zn);
mpf_mul(tmp, xi, xi);
mpf_mul(tmp1, yi, yi);
mpf_add(zn, tmp, tmp1);
mpf_sqrt(zn, zn);
double n = mpf_get_d(zn);
//float nu = log(log(zn) / log(2))/log(2);
double nu = log(log(n) / log(2))/log(2);
//the point has escaped at iteration at any of the iterations 0,1,2,3...
*p = iteration + 1 - nu;
}
else
// zij stays within the region up to max_iteration
{
assert(iteration==max_iteration);
*p = -1;
}
}
k++;
}
//collect various data
MPI_Status status;
if(my_rank == 0){
int i,j;
for(i = 1; i < p; i++){
for(j = 0; j < rows[i]; j++){
MPI_Recv((iterations + (i + j * p) * xres), xres, MPI_FLOAT, i, 0, comm, &status);
//MPI_Irecv((iterations + (i + j * p) * xres), xres, MPI_FLOAT, i, 0, comm, NULL);
}
}
}
else{
int i;
for(i = 0; i < rows[my_rank]; i++)
MPI_Send((iterations + i *xres), xres, MPI_FLOAT, 0, 0, comm);
}
//reduce max iteration count
long long int total_reduced_iterations = -1;
//printf("rank: %i, total_reduced_iterations: %i\n", my_rank, total_number_iterations);
MPI_Reduce(&total_number_iterations, &total_reduced_iterations, 1, MPI_LONG_LONG_INT, MPI_SUM, 0, comm);
double t4 = MPI_Wtime();
double max_reduced_time = -1;
double total_time = t4 - t0;
MPI_Reduce(&total_time, &max_reduced_time, 1, MPI_DOUBLE, MPI_MAX, 0, comm);
if(my_rank == 0){
printf("np: %i, time: %f , iterations: %lld\n",p, max_reduced_time, total_reduced_iterations);
//printf("%i\t%.2e\n", p, max_reduced_time);
}
//clear
//printf("proc: %i, total time: %lf sec, init: %lf sec, calc: %lf sec, collect: %lf\n", my_rank, t4-t0, t1-t0, t2-t1, t3-t2);
return total_reduced_iterations;
}
void
ks (mpf_t Kp,
mpf_t Km,
mpf_t X[],
void (P) (mpf_t, mpf_t),
unsigned long int n)
{
mpf_t Kt; /* temp */
mpf_t f_x;
mpf_t f_j; /* j */
mpf_t f_jnq; /* j/n or (j-1)/n */
unsigned long int j;
/* Sort the vector in ascending order. */
qsort (X, n, sizeof (__mpf_struct), mpf_cmp);
/* K-S test. */
/* Kp = sqr(n) * max(j/n - F(Xj)) for all 1<=j<=n
Km = sqr(n) * max(F(Xj) - (j-1)/n)) for all 1<=j<=n
*/
mpf_init (Kt); mpf_init (f_x); mpf_init (f_j); mpf_init (f_jnq);
mpf_set_ui (Kp, 0); mpf_set_ui (Km, 0);
for (j = 1; j <= n; j++)
{
P (f_x, X[j-1]);
mpf_set_ui (f_j, j);
mpf_div_ui (f_jnq, f_j, n);
mpf_sub (Kt, f_jnq, f_x);
if (mpf_cmp (Kt, Kp) > 0)
mpf_set (Kp, Kt);
if (g_debug > DEBUG_2)
{
printf ("j=%lu ", j);
printf ("P()="); mpf_out_str (stdout, 10, 2, f_x); printf ("\t");
printf ("jnq="); mpf_out_str (stdout, 10, 2, f_jnq); printf (" ");
printf ("diff="); mpf_out_str (stdout, 10, 2, Kt); printf (" ");
printf ("Kp="); mpf_out_str (stdout, 10, 2, Kp); printf ("\t");
}
mpf_sub_ui (f_j, f_j, 1);
mpf_div_ui (f_jnq, f_j, n);
mpf_sub (Kt, f_x, f_jnq);
if (mpf_cmp (Kt, Km) > 0)
mpf_set (Km, Kt);
if (g_debug > DEBUG_2)
{
printf ("jnq="); mpf_out_str (stdout, 10, 2, f_jnq); printf (" ");
printf ("diff="); mpf_out_str (stdout, 10, 2, Kt); printf (" ");
printf ("Km="); mpf_out_str (stdout, 10, 2, Km); printf (" ");
printf ("\n");
}
}
mpf_sqrt_ui (Kt, n);
mpf_mul (Kp, Kp, Kt);
mpf_mul (Km, Km, Kt);
mpf_clear (Kt); mpf_clear (f_x); mpf_clear (f_j); mpf_clear (f_jnq);
}
void
mpc_div (mpc_t *rop, mpc_t op1, mpc_t op2)
{
/* This function needs to be fixed. At the current moment I am tired
* of having to mess around with the precision values, so I'm just
* going to convert the values to 'mpf's and call it quits for the
* day. I'll fix it later.
* Division by zero is not checked for in this function.
*/
mpf_t hold_op1;
mpf_t hold_op2;
mpf_t hold_res;
unsigned int prec;
mpf_init (hold_op1);
mpf_init (hold_op2);
mpf_init (hold_res);
mpf_set_z (hold_op1, op1.object);
mpf_set_z (hold_op2, op2.object);
// Get the largest precision
prec = (op1.precision > op2.precision) ? op1.precision : op2.precision;
if (prec == 0)
prec = default_prec;
// Set the scalar values
while (op1.precision-- > 0)
mpf_div_ui (hold_op1, hold_op1, 10);
while (op2.precision-- > 0)
mpf_div_ui (hold_op2, hold_op2, 10);
// Get the value
mpf_div (hold_res, hold_op1, hold_op2);
for (rop->precision = prec; prec > 0; prec--)
mpf_mul_ui (hold_res, hold_res, 10);
mpz_set_f (rop->object, hold_res);
/*
temp.precision = (op1.precision < op2.precision) ? op2.precision : op1.precision;
if (!op1.precision && !op2.precision)
{
temp.precision = default_prec;
mpz_set (temp.object, op1.object);
power_of_ten (temp.object, default_prec);
mpz_tdiv_q (temp_res, temp.object, op2.object);
}
else if (op1.precision < op2.precision)
{
temp.precision = op2.precision;
mpz_set (temp.object, op1.object);
power_of_ten (temp.object, op2.precision - op1.precision);
mpz_tdiv_q (temp_res, temp.object, op2.object);
}
else if (op1.precision > op2.precision)
{
temp.precision = op1.precision;
mpz_set (temp.object, op2.object);
power_of_ten (temp.object, op1.precision - op2.precision);
mpz_tdiv_q (temp_res, op1.object, temp.object);
}
else
{
temp.precision = op1.precision;
mpz_set (temp.object, op1.object);
mpz_tdiv_q (temp_res, temp.object, op2.object);
}
rop->precision = temp.precision;
mpz_set (rop->object, temp_res);
*/
}
void
omega(long int n, long int m, double tau, long int q,
long int k1, long int k2, mpf_t *factoriales, mpf_t pi) {
mpf_t aux, aux2, aux3, sqrf, acum, Ltau, z, zelev;
int j;
unsigned long int qsqr;
/*
* Set n = min(n,m), and m = max(n,m)
*/
j = n;
n = min(n,m);
m = max(j,m);
/*
* The sqrt(n!m!) pre-factor
*/
mpf_init(aux);
mpf_init(sqrf);
mpf_mul(aux, factoriales[n], factoriales[m]);
mpf_sqrt(sqrf, aux);
/*
* Calculus of tau
*/
mpf_init(aux2);
mpf_init_set_d(Ltau, tau);
mpf_init(z);
mpf_init(zelev);
qsqr = (unsigned long int) q;
mpf_set_d(aux, (double) pow((double) k1, (double) 2));
mpf_mul(aux, aux, Ltau);
mpf_set_d(aux2, (double) pow((double) k2, (double) 2));
mpf_div(aux, aux, Ltau);
mpf_add(aux, aux, aux2);
mpf_div_ui(aux, aux, qsqr);
mpf_mul(z, aux, pi);
if ( ((m-n)%2) == 0)
mpf_pow_ui(zelev, z, (unsigned long int) (m-n)/2);
else {
mpf_pow_ui(zelev, z, m-n);
mpf_sqrt(zelev, zelev);
}
/* mpf_pow_ui(zelev, z, m-n);
*mpf_pow_ui(z, z, 2);
*/
/* mpf_out_str(stdout, 10, 20, z);
printf("\n");*/
/*
* The loop
*/
mpf_init(acum);
mpf_init(aux3);
mpf_set_ui(acum, (unsigned long int) 0);
for (j=0; j <= n; j++) {
mpf_mul(aux, factoriales[j], factoriales[n-j]);
mpf_mul(aux2, aux, factoriales[j+m-n]);
mpf_pow_ui(aux3, z, j);
mpf_div(aux, aux3, aux2);
if ((j%2) == 0)
mpf_set(aux2, aux);
else
mpf_neg(aux2, aux);
mpf_add(acum, acum, aux2);
}
mpf_mul(aux, acum, sqrf);
mpf_mul(aux, aux, zelev);
gmp_printf("%4d %4d %4d %4d %20.20Fe\n", n, m, k1, k2, aux);
/*mpf_out_str(stdout, 10, 20, aux);*/
}
/**
* void calculate_a()
*
* Descricao:
* Calcula o valor da variavel a na n-esima iteracao.
*
* Parametros de entrada:
* -
*
* Parametros de retorno:
* -
*/
void calculate_a(){
mpf_add(a_n[n_count+1], a_n[n_count], b_n[n_count]);
mpf_div_ui(a_n[n_count+1], a_n[n_count+1], 2);
}