void print_time_evolution_of_parameters(FILE *out, ffloat norm, ffloat *host_a, ffloat *host_b, int MSIZE,
ffloat host_mu, ffloat host_alpha, ffloat host_E_dc, ffloat host_E_omega,
ffloat host_omega, ffloat *host_av_data, ffloat t)
{
printf("\n# t=%0.20f norm=%0.20f\n", t, norm);
ffloat v_dr_inst = 0 ;
ffloat v_y_inst = 0;
ffloat m_over_m_x_inst = 0;
for( int m = 1; m < 2*host_M+2; m++ ) {
v_dr_inst += nm(host_b,1,m)*host_dPhi;
v_y_inst += nm(host_a,0,m)*phi_y(m)*host_dPhi;
m_over_m_x_inst += nm(host_a,1,m)*host_dPhi;
}
ffloat v_dr_multiplier = 2*gsl_sf_bessel_I0(host_mu)*PI*sqrt(host_alpha)/gsl_sf_bessel_In(1, host_mu);
ffloat v_y_multiplier = 4*PI*gsl_sf_bessel_I0(host_mu)/gsl_sf_bessel_In(1, host_mu);
ffloat m_over_multiplier = PI*host_alpha*sqrt(host_alpha);
v_dr_inst *= v_dr_multiplier;
v_y_inst *= v_y_multiplier;
m_over_m_x_inst *= m_over_multiplier;
host_av_data[1] *= v_dr_multiplier;
host_av_data[2] *= v_y_multiplier;
host_av_data[3] *= m_over_multiplier;
host_av_data[4] *= v_dr_multiplier;
host_av_data[4] /= t;
host_av_data[5] *= v_dr_multiplier;
host_av_data[5] /= t;
fprintf(out, "#E_{dc} \\tilde{E}_{\\omega} \\tilde{\\omega} mu v_{dr}/v_{p} A(\\omega) NORM v_{y}/v_{p} m/m_{x,k} <v_{dr}/v_{p}> <v_{y}/v_{p}> <m/m_{x,k}> A_{inst} t Asin\n");
fprintf(out, "%0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f\n",
host_E_dc, host_E_omega, host_omega, host_mu, v_dr_inst, host_av_data[4], norm, v_y_inst,
m_over_m_x_inst, host_av_data[1], host_av_data[2], host_av_data[3], cos(host_omega*t)*v_dr_inst, t, host_av_data[4]);
} // end of print_time_evolution_of_parameters(...)
int main(int argc, char *argv[]) {
int display = atoi(argv[1]);
ffloat host_E_dc = strtod(argv[2], NULL);
ffloat host_E_omega = strtod(argv[3], NULL);
ffloat host_omega = strtod(argv[4], NULL);
T = strtod(argv[5], NULL);
N = atoi(argv[6]);
PhiYmax = strtod(argv[7], NULL);
ffloat B = strtod(argv[8], NULL);
t_max = strtod(argv[9], NULL);
dPhi = PhiYmax/M;
printf("# B=%0.20f\n", B);
printf("# dt=%0.20f dPhiY=%0.20f\n", dt, dPhi);
ffloat mu = Delta_nu/(2*Kb*T);
ffloat gamma2 = hbar*hbar/(2*Me*Kb*T*d*d);
// create a0 and populate it with f0
ffloat a0[N+1][2*M+3];
ffloat A = d/(PI*hbar*sqrt(2*PI*Me*Kb*T)*gsl_sf_bessel_I0(mu));
for( int n=0; n<N+1; n++ ) {
ffloat a = A*gsl_sf_bessel_In(n, mu)*(n==0?0.5:1);
for( int m = 0; m < 2*M+3; m++ ) {
a0[n][m] = a*exp(-gamma2*pow(phi_y(m),2));
}
}
if( display == 0 ) {
for( int n=0; n<N; n++ ) {
printf("%d %0.20f\n", n, a0[n][M]);
}
return 0;
}
if( display == 1 ) {
for( ffloat phi_x = -PI; phi_x < PI; phi_x += 0.025 ) {
ffloat value = 0;
for( int n=0; n<N; n++ ) {
value += a0[n][M+1]*cos(n*phi_x);
}
printf("%0.20f %0.20f %0.20f\n", phi_x, value, (d/(2*PI*hbar*gsl_sf_bessel_I0(mu)*sqrt(2*PI*Me*Kb*T)))*exp(mu*cos(phi_x)));
}
ffloat norm = 0;
for( int m = 1; m < 2*M+2; m++ ) {
norm += a0[0][m]*dPhi;
}
printf("# norm=%0.20f\n", norm*hbar/d*20*PI);
return 0;
}
ffloat a[2][N+1][2*M+3];
ffloat b[2][N+1][2*M+3];
for( int c = 0; c < 2; c++ ) {
for( int n = 0; n < N+1; n++ ) {
for( int m = 0; m < 2*M+3; m++ ) {
b[c][n][m] = 0;
a[c][n][m] = a0[n][m];//*exp(-gamma2*pow(phi_y(m),2));
}
}
}
int current = 0; int next = 1;
const ffloat alpha = Delta_nu*d*d*Me/(2*hbar*hbar);
const ffloat nu = (1+dt/2);
const ffloat abdt = alpha*B*dt/(4*dPhi);
for( ffloat t = 0; t < t_max; t += dt ) {
#pragma omp parallel for
for( int m = 1; m < 2*M+2; m++ ) {
// #pragma omp parallel
for( int n = 0; n < N; n++ ) {
/*
ffloat nu = 1 + dt/2; // good
ffloat nu2 = nu * nu;
ffloat mu_t_plus_1 = (host_E_dc + host_E_omega*cos(host_omega*(t+dt)))*n*dt/2;
ffloat g=dt*a0[n]+a[n]*(1-dt/2)-eE(t)*n*b[n]*dt/2;
ffloat h=b[n]*(1-dt/2)+eE(t)*n*a[n]*dt/2;
a[n] = (g*nu-h*mu_t_plus_1)/(nu*nu + mu_t_plus_1*mu_t_plus_1);
b[n] = (h*nu+g*mu_t_plus_1)/(nu*nu + mu_t_plus_1*mu_t_plus_1);
*/
//////////
ffloat beta_t_plus_1 = host_E_dc + host_E_omega*cos(host_omega*(t+dt))+B*phi_y(m);
ffloat beta_t = host_E_dc + host_E_omega*cos(host_omega*(t))+B*phi_y(m);
ffloat mu_t_plus_1 = n*beta_t_plus_1*dt/2;
ffloat mu_t = n*beta_t*dt/2;
ffloat g = dt*a0[n][m] + a[current][n][m]*(1-dt/2) - b[current][n][m]*mu_t
+ abdt*(b[current][n+1][m+1] - b[current][n+1][m-1]
- ( n < 2 ? 0 : ( b[current][n-1][m+1] - b[current][n-1][m-1])));
ffloat h = b[current][n][m]*(1-dt/2) + a[current][n][m]*mu_t
+ abdt*((n==1?2:1)*(n==0?0:(a[current][n-1][m+1]-a[current][n-1][m-1]))
- (a[current][n+1][m+1]-a[current][n+1][m-1]));
a[next][n][m] = (g*nu-h*mu_t_plus_1)/(nu*nu+mu_t_plus_1*mu_t_plus_1);
if( n > 0 ) {
b[next][n][m] = (g*mu_t_plus_1+h*nu)/(nu*nu+mu_t_plus_1*mu_t_plus_1);
}
//////////////////////////////////////
/*
ffloat g = a[current][n][m] + dt*a0[n][m] +
abdt*(b[current][n+1][m+1] - b[current][n+1][m-1]
- ( n < 2 ? 0 : ( b[current][n-1][m+1] - b[current][n-1][m-1])));
ffloat h = b[current][n][m] +
abdt*((n==1?2:1)*(n==0?0:(a[current][n-1][m+1]-a[current][n-1][m-1]))
- (a[current][n+1][m+1]-a[current][n+1][m-1]));
ffloat beta_t_plus_1 = host_E_dc + host_E_omega*cos(host_omega*(t+dt))+B*phi_y(m);
ffloat mu = n*beta_t_plus_1*dt;
a[next][n][m] = (g*nu-h*mu)/(nu*nu+mu*mu);
if( n > 0 ) {
b[next][n][m] = (g*mu+h*nu)/(nu*nu+mu*mu);
}
*/
///////////////////////////////////////
/*
a[next][n][m] = dt*a0[n][m]
+ (a[current][n][m-1]+a[current][n][m+1])*(1-dt)/2
- (b[current][n][m-1]+b[current][n][m+1])*n*beta*dt/2
+ alpha*B*dt/(4*dPhi)*(b[current][n+1][m+1] - b[current][n+1][m-1]
- ( n < 2 ? 0 : ( b[current][n-1][m+1] - b[current][n-1][m-1]) )
);
if( n == 0 ) { continue; }
// n here is always 1 or greater
b[next][n][m] = (b[current][n][m-1]+b[current][n][m+1])*(1-dt)/2
+ (a[current][n][m-1]+a[current][n][m+1])*n*beta*dt/2
+ alpha*B*dt/(4*dPhi)*((n==1?2:1)*(a[current][n-1][m+1]-a[current][n-1][m-1])
- (a[current][n+1][m+1]-a[current][n+1][m-1]));
*/
}
}
#pragma end parallel for
//printf("%d\n", current);
if( current == 0 ) { current = 1; next = 0; } else { current = 0; next = 1; }
}
if( display == 2 ) {
for( ffloat phi_x = -PI; phi_x < PI; phi_x += 0.025 ) {
ffloat value = 0; ffloat value0 = 0;
for( int n=0; n<N; n++ ) {
value += a[current][n][962]*cos(n*phi_x);// + b[current][n][962]*sin(n*phi_x);
// value += a0[n][M+1]*cos(n*phi_x);
value0 += a0[n][962]*cos(n*phi_x);
}
printf("%0.20f %0.20f %0.20f\n", phi_x, value, value0); // (d/(2*PI*hbar*gsl_sf_bessel_I0(mu)*sqrt(2*PI*Me*Kb*T)))*exp(mu*cos(phi_x)));
}
return 0;
}
if( display == 3 ) {
ffloat value_min = 100;
int m_min = -1;
for( ffloat phi_x = -PI; phi_x < PI; phi_x += 0.04 ) {
for( int m = 1; m < 2*M+2; m++ ) {
ffloat value = 0;
ffloat value0 = 0;
for( int n = 0; n < N+1; n++ ) {
value += a[current][n][m]*cos(n*phi_x) + b[current][n][m]*sin(n*phi_x);
value0 += a0[n][m]*cos(n*phi_x);
}
printf("%0.20f %0.20f %0.20f %0.20f\n", phi_x, phi_y(m), value<0?0:value, value0);
if( value < value_min ) { value_min = value; m_min = m; }
}
printf("# v_min = %0.20f @ m=%d\n", value_min, m_min);
}
return 0;
}
if( display == 4 ) {
ffloat norm = 0;
for( int m = 1; m < 2*M+2; m++ ) {
norm += a[current][0][m]*dPhi;
}
norm *= hbar*2*PI/(d*d);
ffloat v_dr_av = 0;
ffloat v_dr_final = 0;
for( int m = 1; m < 2*M+2; m++ ) {
v_dr_final += b[current][1][m]*dPhi;
}
v_dr_av = hbar * PI * v_dr_final / ( d * d ); // this is really v_{dr}/v_0
printf("#E_{dc} \\tilde{E}_{\\omega} \\tilde{\\omega} T <v_{dr}/v_{0}> A(\\omega) NORM\n");
printf("%0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f\n", host_E_dc, host_E_omega, host_omega, T, v_dr_av, 0.0, norm);
}
}
int main(int argc, char **argv) {
parse_cmd(argc, argv);
cudaSetDevice(device);
ffloat T = host_omega>0?(2*PI/host_omega):0; // period of external a/c emf
if( display == 9 ) {
t_max = t_start + 101*T;
init_strobe_array();
} else {
t_max = t_start + T;
}
if( quiet == 0 ) { printf("# t_max = %0.20f kernel=%d\n", t_max, BLTZM_KERNEL); }
// we will allocate enough memory to accommodate range
// from -PhiY_max_range to PhiY_max_range, but will use only
// part of it from PhiYmin to PhiYmax
ffloat PhiY_max_range = fabs(PhiYmin);
if( PhiY_max_range < fabs(PhiYmax) ) {
PhiY_max_range = fabs(PhiYmax);
}
//host_dPhi = PhiY_max_range/host_M;
host_dPhi = (PhiYmax-PhiYmin)/host_M;
NSIZE = host_N+1;
//MSIZE = 2*host_M+3;
MSIZE = host_M+3;
PADDED_MSIZE = (MSIZE*sizeof(ffloat))%128==0?MSIZE:((((MSIZE*sizeof(ffloat))/128)*128+128)/sizeof(ffloat));
printf("PADDED MEMORY FROM %d ELEMENTS PER ROW TO %d\n", MSIZE, (int)PADDED_MSIZE);
MP1 = host_M+1; //
SIZE_2D = NSIZE*PADDED_MSIZE;
const int SIZE_2Df = SIZE_2D*sizeof(ffloat);
host_TMSIZE=host_M+1;
host_nu = 1+host_dt/2;
host_nu2 = host_nu * host_nu;
host_nu_tilde = 1-host_dt/2;
host_bdt = host_B*host_dt/(4*host_dPhi);
load_data();
// create a0 and populate it with f0
ffloat *host_a0; host_a0 = (ffloat *)calloc(SIZE_2D, sizeof(ffloat));
for( int n=0; n<host_N+1; n++ ) {
ffloat a = gsl_sf_bessel_In(n, host_mu)*(n==0?0.5:1)/(PI*gsl_sf_bessel_In(0, host_mu))*sqrt(host_mu/(2*PI*host_alpha));
for( int m = 0; m < host_M+3; m++ ) {
nm(host_a0, n, m) = a*expl(-host_mu*pow(phi_y(m),2)/2);
}
}
// create device_a0 and transfer data from host_a0 to device_a0
ffloat *a0;
HANDLE_ERROR(cudaMalloc((void **)&a0, SIZE_2Df));
HANDLE_ERROR(cudaMemcpy(a0, host_a0, SIZE_2Df, cudaMemcpyHostToDevice));
// create a and b 2D vectors, four of each. one for current,
// another for next pointer on main and shifted grids
ffloat *host_a = (ffloat *)calloc(SIZE_2D, sizeof(ffloat));
ffloat *host_b = (ffloat *)calloc(SIZE_2D, sizeof(ffloat));
ffloat *a[4];
ffloat *b[4];
for( int i = 0; i < 4; i++ ) {
HANDLE_ERROR(cudaMalloc((void **)&a[i], SIZE_2Df));
HANDLE_ERROR(cudaMalloc((void **)&b[i], SIZE_2Df));
// zero vector b[i]
HANDLE_ERROR(cudaMemset((void *)a[i], 0, SIZE_2Df));
HANDLE_ERROR(cudaMemset((void *)b[i], 0, SIZE_2Df));
}
int current = 0; int next = 1;
int current_hs = 2; int next_hs = 3; // 'hs' - half step
// init vectors a[0] and a[2]
HANDLE_ERROR(cudaMemcpy(a[current], host_a0, SIZE_2Df,
cudaMemcpyHostToDevice));
int blocks = (host_M+3)/TH_PER_BLOCK;
// tiptow to the first half step
ffloat *host_a_hs = (ffloat *)calloc(SIZE_2D, sizeof(ffloat));
ffloat *host_b_hs = (ffloat *)calloc(SIZE_2D, sizeof(ffloat));
ffloat cos_omega_t = 1; // cos(host_omega*t); for t = 0
ffloat cos_omega_t_plus_dt = cos(host_omega*(host_dt));
step_on_grid(blocks, a0, a[current], b[current], a[current_hs], b[current_hs],
a[current], b[current], 0, 0,
cos_omega_t, cos_omega_t_plus_dt);
/*
// temporary solution // FIX ME!!!
memcpy(host_a_hs, host_a, SIZE_2D*sizeof(ffloat));
HANDLE_ERROR(cudaMemcpy(a[current_hs], host_a_hs,
SIZE_2Df, cudaMemcpyHostToDevice));
HANDLE_ERROR(cudaMemcpy(b[current_hs], host_b_hs,
SIZE_2Df, cudaMemcpyHostToDevice));
*/
// used for file names when generated data for making animation
char *file_name_buf = (char *)calloc(128, sizeof(char));
char buf[16384]; // output buffer for writing frame data when display==77
int step = 0;
ffloat frame_time = 0; int frame_number = 1;
ffloat *host_av_data; host_av_data = (ffloat *)calloc(5, sizeof(ffloat));
ffloat *av_data;
HANDLE_ERROR(cudaMalloc((void **)&av_data, 6*sizeof(ffloat)));
HANDLE_ERROR(cudaMemset((void *)av_data, 0, 6*sizeof(ffloat)));
float t_hs = 0;
ffloat t0 = 0;
ffloat t = t0;
ffloat timeout = -999;
ffloat last_tT_reminder = 0;
for(;;) {
//read_from
int ccc = 0;
for( t = t0; t < t_max; t += host_dt ) {
/// XXX
//ccc++;
//if( ccc == 51 ) { break; }
t_hs = t + host_dt/2;
cos_omega_t = cos(host_omega*t);
cos_omega_t_plus_dt = cos(host_omega*(t+host_dt));
step_on_grid(blocks, a0, a[current], b[current], a[next], b[next], a[current_hs],
b[current_hs], t, t_hs,
cos_omega_t, cos_omega_t_plus_dt);
cudaThreadSynchronize();
cos_omega_t = cos(host_omega*t_hs);
cos_omega_t_plus_dt = cos(host_omega*(t_hs+host_dt));
step_on_half_grid(blocks, a0, a[current], b[current], a[next], b[next], a[current_hs],
b[current_hs], a[next_hs], b[next_hs], t, t_hs,
cos_omega_t, cos_omega_t_plus_dt);
/*
if( t >= 0 ) {
HANDLE_ERROR(cudaMemcpy(host_a, a[current], SIZE_2Df, cudaMemcpyDeviceToHost));
HANDLE_ERROR(cudaMemcpy(host_b, b[current], SIZE_2Df, cudaMemcpyDeviceToHost));
sprintf(file_name_buf, "strobe.data");
FILE *frame_file_stream = fopen(file_name_buf, "w");
setvbuf(frame_file_stream, buf, _IOFBF, sizeof(buf));
printf("\nWriting strobe %s\n", file_name_buf);
print_2d_strobe(frame_file_stream, MSIZE, host_a0, host_a, host_b, host_alpha, t);
fclose(frame_file_stream);
frame_time = 0;
break; } /// XXX REMOVE ME
*/
if( host_E_omega > 0 && display == 77 && frame_time >= 0.01) {
// we need to perform averaging of v_dr, m_x and A
av(blocks, a[next], b[next], av_data, t);
HANDLE_ERROR(cudaMemcpy(host_a, a[current], SIZE_2Df, cudaMemcpyDeviceToHost));
HANDLE_ERROR(cudaMemcpy(host_b, b[current], SIZE_2Df, cudaMemcpyDeviceToHost));
HANDLE_ERROR(cudaMemcpy(host_av_data, av_data, 6*sizeof(ffloat), cudaMemcpyDeviceToHost));
ffloat norm = eval_norm(host_a, host_alpha, MSIZE);
print_time_evolution_of_parameters(out, norm, host_a, host_b, MSIZE,
host_mu, host_alpha, host_E_dc, host_E_omega, host_omega,
host_av_data, t);
frame_time = 0;
}
if( host_E_omega > 0 && display != 7 && display != 77 && display != 8 && t >= t_start ) {
// we need to perform averaging of v_dr, m_x and A
av(blocks, a[next], b[next], av_data, t);
}
if( current == 0 ) { current = 1; next = 0; } else { current = 0; next = 1; }
if( current_hs == 2 ) { current_hs = 3; next_hs = 2; } else { current_hs = 2; next_hs = 3; }
//if( display == 9 && t >= t_start ) {
// ffloat tT = t/T;
// printf("t=%0.12f %0.12f %0.12f\n", t, , T);
//}
if( display == 9 && t >= t_start ) { // XXX PUT ME BACK
ffloat tT = t/T;
ffloat tT_reminder = tT-((int)tT);
if( tT_reminder < last_tT_reminder ) {
HANDLE_ERROR(cudaMemcpy(host_a, a[current], SIZE_2Df, cudaMemcpyDeviceToHost));
HANDLE_ERROR(cudaMemcpy(host_b, b[current], SIZE_2Df, cudaMemcpyDeviceToHost));
sprintf(file_name_buf, "strobe%08d.data", frame_number++);
FILE *frame_file_stream = fopen(file_name_buf, "w");
setvbuf(frame_file_stream, buf, _IOFBF, sizeof(buf));
printf("\nWriting strobe %s\n", file_name_buf);
print_2d_strobe(frame_file_stream, MSIZE, host_a0, host_a, host_b, host_alpha, t);
fclose(frame_file_stream);
frame_time = 0;
}
last_tT_reminder = tT_reminder;
}
if( display == 7 && frame_time >= 0.01 && t > frame_start ) { // we are making movie
HANDLE_ERROR(cudaMemcpy(host_a, a[current], SIZE_2Df, cudaMemcpyDeviceToHost));
HANDLE_ERROR(cudaMemcpy(host_b, b[current], SIZE_2Df, cudaMemcpyDeviceToHost));
sprintf(file_name_buf, "frame%08d.data", frame_number++);
FILE *frame_file_stream = fopen(file_name_buf, "w");
setvbuf(frame_file_stream, buf, _IOFBF, sizeof(buf));
printf("\nWriting frame %s\n", file_name_buf);
print_2d_data(frame_file_stream, MSIZE, host_a0, host_a, host_b, host_alpha, t);
fclose(frame_file_stream);
frame_time=0;
}
if( out != stdout && display != 7 ) {
step++;
if( step == 300 ) {
printf("\rt=%0.9f %0.2f%%", t, t/t_max*100);
fflush(stdout);
step = 0;
}
}
frame_time += host_dt;
if( display == 9 && t <= t_start && frame_time >= T ) {
frame_time == 0;
}
}
HANDLE_ERROR(cudaMemcpy(host_a, a[current], SIZE_2Df, cudaMemcpyDeviceToHost));
HANDLE_ERROR(cudaMemcpy(host_b, b[current], SIZE_2Df, cudaMemcpyDeviceToHost));
HANDLE_ERROR(cudaMemcpy(host_av_data, av_data, 6*sizeof(ffloat), cudaMemcpyDeviceToHost));
ffloat norm = 0;
ffloat dphi_over_2 = host_dPhi/2.0;
for( int m = 1; m < host_M+1; m++ ) {
norm += (nm(host_a,0,m)+nm(host_a,0,m))*dphi_over_2;
}
norm *= 2*PI*sqrt(host_alpha);
if( display == 3 ) {
for( ffloat phi_x = -PI; phi_x < PI; phi_x += 0.01 ) {
for( int m = 1; m < host_M; m++ ) {
ffloat value = 0;
ffloat value0 = 0;
for( int n = 0; n < host_N+1; n++ ) {
value += nm(host_a,n,m)*cos(n*phi_x) + nm(host_b,n,m)*sin(n*phi_x);
value0 += nm(host_a0,n,m)*cos(n*phi_x);
}
fprintf(out, "%0.5f %0.5f %0.20f %0.20f\n", phi_x, phi_y(m), value<0?0:value, value0<0?0:value0);
}
}
fprintf(out, "# norm=%0.20f\n", norm);
printf("# norm=%0.20f\n", norm);
//if( out != stdout ) { fclose(out); }
cuda_clean_up();
return EXIT_SUCCESS;
}
if( display == 8 ) {
// single shot image
HANDLE_ERROR(cudaMemcpy(host_a, a[current], SIZE_2Df, cudaMemcpyDeviceToHost));
HANDLE_ERROR(cudaMemcpy(host_b, b[current], SIZE_2Df, cudaMemcpyDeviceToHost));
sprintf(file_name_buf, "frame.data");
FILE *frame_file_stream = fopen(file_name_buf, "w");
setvbuf(frame_file_stream, buf, _IOFBF, sizeof(buf));
printf("\nWriting frame %s\n", file_name_buf);
print_2d_data(frame_file_stream, MSIZE, host_a0, host_a, host_b, host_alpha, t);
fclose(frame_file_stream);
frame_time=0;
return EXIT_SUCCESS;
}
if( display == 4 ) {
if( quiet == 0 ) { printf("\n# norm=%0.20f\n", norm); }
ffloat v_dr_inst = 0 ;
ffloat v_y_inst = 0;
ffloat m_over_m_x_inst = 0;
for( int m = 1; m < host_M; m++ ) {
v_dr_inst += nm(host_b,1,m)*host_dPhi;
v_y_inst += nm(host_a,0,m)*phi_y(m)*host_dPhi;
m_over_m_x_inst += nm(host_a,1,m)*host_dPhi;
}
ffloat v_dr_multiplier = 2*gsl_sf_bessel_I0(host_mu)*PI*sqrt(host_alpha)/gsl_sf_bessel_In(1, host_mu);
ffloat v_y_multiplier = 4*PI*gsl_sf_bessel_I0(host_mu)/gsl_sf_bessel_In(1, host_mu);
ffloat m_over_multiplier = PI*host_alpha*sqrt(host_alpha);
v_dr_inst *= v_dr_multiplier;
v_y_inst *= v_y_multiplier;
m_over_m_x_inst *= m_over_multiplier;
host_av_data[1] *= v_dr_multiplier;
host_av_data[2] *= v_y_multiplier;
host_av_data[3] *= m_over_multiplier;
host_av_data[4] *= v_dr_multiplier;
host_av_data[4] /= T;
host_av_data[5] *= v_dr_multiplier;
host_av_data[5] /= T;
fprintf(out, "# display=%d E_dc=%0.20f E_omega=%0.20f omega=%0.20f mu=%0.20f alpha=%0.20f n-harmonics=%d PhiYmin=%0.20f PhiYmax=%0.20f B=%0.20f t-max=%0.20f dt=%0.20f g-grid=%d\n",
display, host_E_dc, host_E_omega, host_omega, host_mu, host_alpha, host_N, PhiYmin, PhiYmax, host_B, t_start, host_dt, host_M);
fprintf(out, "#E_{dc} \\tilde{E}_{\\omega} \\tilde{\\omega} mu v_{dr}/v_{p} A(\\omega) NORM v_{y}/v_{p} m/m_{x,k} <v_{dr}/v_{p}> <v_{y}/v_{p}> <m/m_{x,k}> Asin\n");
fprintf(out, "%0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f %0.20f\n",
host_E_dc, host_E_omega, host_omega, host_mu, v_dr_inst, host_av_data[4], norm, v_y_inst,
m_over_m_x_inst, host_av_data[1], host_av_data[2], host_av_data[3], host_av_data[5]);
}
if( read_from == NULL ) { break; }
// scan for new parameters
timeout = scan_for_new_parameters();
if( timeout < -900 ) { break; } // user entered 'exit'
t_start = t + timeout;
t_max = t_start + T;
t0 = t + host_dt;
T=host_omega>0?(2*PI/host_omega):0;
load_data(); // re-load data
HANDLE_ERROR(cudaMemset((void *)av_data, 0, 6*sizeof(ffloat))); // clear averaging data
if( quiet == 0 ) { printf("# t_max = %0.20f\n", t_max); }
} // for(;;)
if( out != NULL && out != stdout ) {
fclose(out);
}
cuda_clean_up();
return EXIT_SUCCESS;
} // end of main(...)
double FC_FUNC_(oct_bessel_in, OCT_BESSEL_IN)
(const int *n, const double *x)
{
return gsl_sf_bessel_In(*n, *x);
}