int main() {
double lb[2] = { -HUGE_VAL, 0 }; /* lower bounds */
nlopt_opt opt;
opt = nlopt_create(NLOPT_LD_MMA, 2); /* algorithm and dimensionality */
nlopt_set_lower_bounds(opt, lb);
nlopt_set_min_objective(opt, myfunc, NULL);
my_constraint_data data[2] = { { 2, 0 }, { -1, 1 } };
nlopt_add_inequality_constraint(opt, myconstraint, &data[0], 1e-8);
nlopt_add_inequality_constraint(opt, myconstraint, &data[1], 1e-8);
nlopt_set_xtol_rel(opt, 1e-4);
double x[2] = { 1.234, 5.678 }; /* some initial guess */
double minf; /* the minimum objective value, upon return */
if (nlopt_optimize(opt, x, &minf) < 0) {
printf("nlopt failed!\n");
}
else {
printf("found minimum at f(%g,%g) = %0.10g\n", x[0], x[1], minf);
}
nlopt_destroy(opt);
}
static void phyanimal_fit_lambda(PhyAnimal model) {
nlopt_opt opt;
double lb, ub, lambda, loglh;
opt = nlopt_create(NLOPT_LN_NELDERMEAD, 1); /* one dimension */
lb = 0.0;
ub = 1.0;
nlopt_set_lower_bounds(opt,&lb);
nlopt_set_upper_bounds(opt,&ub);
/* No inequality constraints */
nlopt_set_max_objective(opt, loglh_worker, model);
nlopt_set_xtol_rel(opt, 1e-4);
lambda = 0.1;
if (nlopt_optimize(opt, &lambda, &loglh)<0) {
printf("NLOPT failed\n");
} else {
printf("Maximum lh %f at lambda %f\n",loglh,lambda);
printf("Sigma = %f\n",model->sigma);
printf("Sigma_b = %f\nSigma_e = %f\n",model->sigma*lambda,model->sigma*(1-lambda));
}
model->loglh = loglh;
model->lambda = lambda;
nlopt_destroy(opt);
return;
}
nlopt_opt make_opt(const mxArray *opts, unsigned n)
{
nlopt_opt opt = NULL, local_opt = NULL;
nlopt_algorithm algorithm;
double *tmp = NULL;
unsigned i;
algorithm = (nlopt_algorithm)
struct_val_default(opts, "algorithm", NLOPT_NUM_ALGORITHMS);
CHECK1(((int)algorithm) >= 0 && algorithm < NLOPT_NUM_ALGORITHMS,
"invalid opt.algorithm");
tmp = (double *) mxCalloc(n, sizeof(double));
opt = nlopt_create(algorithm, n);
CHECK1(opt, "nlopt: out of memory");
nlopt_set_lower_bounds(opt, struct_arrval(opts, "lower_bounds", n,
fill(tmp, n, -HUGE_VAL)));
nlopt_set_upper_bounds(opt, struct_arrval(opts, "upper_bounds", n,
fill(tmp, n, +HUGE_VAL)));
nlopt_set_stopval(opt, struct_val_default(opts, "stopval", -HUGE_VAL));
nlopt_set_ftol_rel(opt, struct_val_default(opts, "ftol_rel", 0.0));
nlopt_set_ftol_abs(opt, struct_val_default(opts, "ftol_abs", 0.0));
nlopt_set_xtol_rel(opt, struct_val_default(opts, "xtol_rel", 0.0));
nlopt_set_xtol_abs(opt, struct_arrval(opts, "xtol_abs", n,
fill(tmp, n, 0.0)));
nlopt_set_maxeval(opt, struct_val_default(opts, "maxeval", 0.0) < 0 ?
0 : struct_val_default(opts, "maxeval", 0.0));
nlopt_set_maxtime(opt, struct_val_default(opts, "maxtime", 0.0));
nlopt_set_population(opt, struct_val_default(opts, "population", 0));
nlopt_set_vector_storage(opt, struct_val_default(opts, "vector_storage", 0));
if (struct_arrval(opts, "initial_step", n, NULL))
nlopt_set_initial_step(opt,
struct_arrval(opts, "initial_step", n, NULL));
if (mxGetField(opts, 0, "local_optimizer")) {
const mxArray *local_opts = mxGetField(opts, 0, "local_optimizer");
CHECK1(mxIsStruct(local_opts),
"opt.local_optimizer must be a structure");
CHECK1(local_opt = make_opt(local_opts, n),
"error initializing local optimizer");
nlopt_set_local_optimizer(opt, local_opt);
nlopt_destroy(local_opt); local_opt = NULL;
}
mxFree(tmp);
return opt;
}
Eigen::VectorXd TargetTrackingController::getControl(const EKF *ekf, const MultiAgentMotionModel *motionModel, const std::vector<const SensorModel*> &sensorModel, double *f) const {
Evaluator evaluator(ekf, motionModel, sensorModel, params);
Eigen::VectorXd p = Eigen::VectorXd::Zero(motionModel->getControlDim());
Eigen::VectorXd lowerBound = Eigen::VectorXd::Constant(motionModel->getControlDim(), params("multi_rotor_control/controlMin").toDouble());
Eigen::VectorXd upperBound = Eigen::VectorXd::Constant(motionModel->getControlDim(), params("multi_rotor_control/controlMax").toDouble());
nlopt_opt opt = nlopt_create(NLOPT_LN_COBYLA, p.size());
// nlopt_opt opt = nlopt_create(NLOPT_LN_BOBYQA, p.size());
// nlopt_opt opt = nlopt_create(NLOPT_LN_NEWUOA_BOUND, p.size());
// nlopt_opt opt = nlopt_create(NLOPT_LN_PRAXIS, p.size());
// nlopt_opt opt = nlopt_create(NLOPT_LN_NELDERMEAD, p.size());
// nlopt_opt opt = nlopt_create(NLOPT_LN_SBPLX, p.size());
// nlopt_opt opt = nlopt_create(NLOPT_GN_ORIG_DIRECT, p.size()); // failed
// nlopt_opt opt = nlopt_create(NLOPT_GN_ORIG_DIRECT_L, p.size()); // very good: p 0.0118546 -6.27225e-05 6.27225e-05 -2.09075e-05 2.09075e-05 -8.51788e-06 -2.09075e-05 10
// nlopt_opt opt = nlopt_create(NLOPT_GN_ISRES, p.size()); // rather bad
// nlopt_opt opt = nlopt_create(NLOPT_GN_CRS2_LM, p.size());
// nlopt_opt opt = nlopt_create(NLOPT_LD_MMA, p.size());
// nlopt_opt opt = nlopt_create(NLOPT_LD_CCSAQ, p.size());
// nlopt_opt opt = nlopt_create(NLOPT_LD_SLSQP, p.size());
// nlopt_opt opt = nlopt_create(NLOPT_LD_LBFGS, p.size());
// nlopt_opt opt = nlopt_create(NLOPT_LD_TNEWTON_PRECOND, p.size()); // bad
// nlopt_opt opt = nlopt_create(NLOPT_LD_TNEWTON_PRECOND_RESTART, p.size()); // bad
// nlopt_opt opt = nlopt_create(NLOPT_LD_VAR2, p.size());
nlopt_set_min_objective(opt, f_evaluate, &evaluator);
nlopt_set_lower_bounds(opt, lowerBound.data());
nlopt_set_upper_bounds(opt, upperBound.data());
nlopt_set_ftol_abs(opt, 1E-6);
nlopt_set_xtol_rel(opt, 1E-3);
nlopt_set_maxeval(opt, 1E8);
nlopt_set_maxtime(opt, 7200);
double pa[p.size()];
memcpy(pa, p.data(), p.size()*sizeof(double));
double cost = 0;
// std::string tmp; std::cerr << "Press enter to start optimization\n"; std::getline(std::cin, tmp);
nlopt_result ret = nlopt_optimize(opt, pa, &cost);
Eigen::VectorXd p_res = Eigen::Map<Eigen::VectorXd>(pa, p.size());
if (f)
*f = cost;
std::cerr << "\nInitial guess:\n";
std::cerr << " p " << p.transpose() << "\n";
std::cerr << " value " << evaluator.evaluate(p) << "\n";
std::cerr << "Optimization result (return code " << ret << "):\n";
std::cerr << " p " << p_res.transpose() << "\n";
std::cerr << " value " << evaluator.evaluate(p_res) << "\n";
nlopt_destroy(opt);
return p_res;
}
double Optimize_Torsion_Parameters(int Idx_Soft_Tor)
{
double lb[N_TOR_PARA] = { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -100.0 }; /* lower bounds */
double ub[N_TOR_PARA] = { 12.0, 12.0, 12.0, 12.0, 12.0, 12.0, 12.0, 12.0, 12.0, 12.0, 100.0 }; /* lower bounds */
double Phase[32][5]={{0, 0, 0, 0, 0}, {0, 0, 0, 0, PI}, {0, 0, 0, PI, 0}, {0, 0, 0, PI, PI}, {0, 0, PI, 0, 0}, {0, 0, PI, 0, PI}, {0, 0, PI, PI, 0}, {0, 0, PI, PI, PI}, {0, PI, 0, 0, 0}, {0, PI, 0, 0, PI},
{0, PI, 0, PI, 0}, {0, PI, 0, PI, PI}, {0, PI, PI, 0, 0}, {0, PI, PI, 0, PI}, {0, PI, PI, PI, 0}, {0, PI, PI, PI, PI}, {PI, 0, 0, 0, 0}, {PI, 0, 0, 0, PI}, {PI, 0, 0, PI, 0}, {PI, 0, 0, PI, PI},
{PI, 0, PI, 0, 0}, {PI, 0, PI, 0, PI}, {PI, 0, PI, PI, 0}, {PI, 0, PI, PI, PI}, {PI, PI, 0, 0, 0}, {PI, PI, 0, 0, PI}, {PI, PI, 0, PI, 0}, {PI, PI, 0, PI, PI}, {PI, PI, PI, 0, 0}, {PI, PI, PI, 0, PI},
{PI, PI, PI, PI, 0}, {PI, PI, PI, PI, PI}};
nlopt_opt opt;
double Chi_SQ;
int i, j, Idx_Phi;
Chi_SQ_Min = 1.0E100;
opt = nlopt_create(NLOPT_LD_LBFGS, N_TOR_PARA);
nlopt_set_lower_bounds(opt, lb);
nlopt_set_upper_bounds(opt, ub);
nlopt_set_min_objective(opt, Callback_Eval_Gradient, NULL);
nlopt_set_xtol_rel(opt, 1e-8);
iseed = time(NULL);
ActiveRun = 0;
Chi_SQ_Min_Local[0] = 1.0E200;
FailCount = Iteration = 0;
Idx_Phi = IdxDihSelect[Idx_Soft_Tor];
Para_Tor[10] = 0.0;
for(i=0; i<N_TOR_PARA; i++) {
IsPara_Fixed[i] = 1;
}
IsPara_Fixed[N_TOR_PARA-1] = 0; // only optimize the last parameter
if (nlopt_optimize(opt, Para_Tor, &Chi_SQ) < 0) {
printf("nlopt failed!\n");
}
else {
printf("Chi_SQ_min = %lf Chi_SQ = %lf\n", Chi_SQ_Min, Chi_SQ);
}
memcpy(Para_Tor, Para_Best, sizeof(double)*N_TOR_PARA);
CalObjectiveFunction_Tor(Para_Tor);
nlopt_destroy(opt);
return Chi_SQ_Min;
}
/*
* NLOPT optimization routine for table tennis traj gen
*
*/
void nlopt_optim_poly_run(double *x, double *params) {
static double tol[EQ_CONSTR_DIM];
static double lb[OPTIM_DIM]; /* lower bounds */
static double ub[OPTIM_DIM]; /* upper bounds */
set_bounds(lb,ub);
const_vec(EQ_CONSTR_DIM,1e-2,tol); /* set tolerances equal to second argument */
nlopt_opt opt;
opt = nlopt_create(NLOPT_LN_COBYLA, OPTIM_DIM); /* LN = does not require gradients */
//nlopt_set_xtol_rel(opt, 1e-2);
//opt = nlopt_create(NLOPT_AUGLAG, OPTIM_DIM); /* algorithm and dimensionality */
//nlopt_set_local_optimizer(opt, opt);
nlopt_set_lower_bounds(opt, lb);
nlopt_set_upper_bounds(opt, ub);
nlopt_set_min_objective(opt, costfunc, params);
nlopt_add_inequality_mconstraint(opt, INEQ_CONSTR_DIM, joint_limits_ineq_constr, params, tol);
nlopt_add_equality_mconstraint(opt, EQ_CONSTR_DIM, kinematics_eq_constr, params, tol);
nlopt_set_xtol_rel(opt, 1e-2);
//int maxeval = 20000;
//nlopt_set_maxeval(opt, maxeval);
//double maxtime = 0.001;
//nlopt_set_maxtime(opt, maxtime);
//init_soln_to_rest_posture(x,params); //parameters are the initial joint positions q0
double initTime = get_time();
double minf; /* the minimum objective value, upon return */
if (nlopt_optimize(opt, x, &minf) < 0) {
printf("NLOPT failed!\n");
}
else {
//nlopt_example_run();
printf("NLOPT took %f ms\n", (get_time() - initTime)/1e3);
printf("Found minimum at f = %0.10g\n", minf);
test_optim(x,params);
}
nlopt_destroy(opt);
}
double NLfit::run_method(vector<realt>* best_a)
{
if (opt_ != NULL && na_ != (int) nlopt_get_dimension(opt_)) {
nlopt_destroy(opt_);
opt_ = NULL;
}
if (opt_ == NULL) {
opt_ = nlopt_create(algorithm_, na_);
nlopt_set_min_objective(opt_, calculate_for_nlopt, this);
}
// this is also handled in Fit::common_termination_criteria()
nlopt_set_maxtime(opt_, F_->get_settings()->max_fitting_time);
nlopt_set_maxeval(opt_, max_eval() - 1); // save 1 eval for final calc.
nlopt_set_ftol_rel(opt_, F_->get_settings()->ftol_rel);
nlopt_set_xtol_rel(opt_, F_->get_settings()->xtol_rel);
double *lb = new double[na_];
double *ub = new double[na_];
for (int i = 0; i < na_; ++i) {
const RealRange& d = F_->mgr.get_variable(i)->domain;
lb[i] = d.lo;
ub[i] = d.hi;
}
nlopt_set_lower_bounds(opt_, lb);
nlopt_set_upper_bounds(opt_, ub);
delete [] lb;
delete [] ub;
double opt_f;
double *a = new double[na_];
for (int i = 0; i < na_; ++i)
a[i] = a_orig_[i];
nlopt_result r = nlopt_optimize(opt_, a, &opt_f);
F_->msg("NLopt says: " + S(nlresult_to_string(r)));
best_a->assign(a, a+na_);
delete [] a;
return opt_f;
}
void calculateSigma2() {
// use non linear optimization to calculate sigma2
nlopt_opt opt;
const int nParam = sigma2.size();
std::vector<double> lb(nParam, 1e-10);
opt = nlopt_create(NLOPT_LN_COBYLA, nParam);
nlopt_set_lower_bounds(opt, lb.data());
nlopt_set_min_objective(opt, goalFunction, this);
nlopt_set_xtol_rel(opt, 1e-4);
double minf; /* the minimum objective value, upon return */
int retCode = nlopt_optimize(opt, sigma2.data(), &minf);
if (retCode < 0) {
#ifdef DEBUG
printf("nlopt failed [ %d ]!\n", retCode);
#endif
} else {
#ifdef DEBUG
printf("found minimum at %g\n", minf);
#endif
}
nlopt_destroy(opt);
}
nlopt_result
NLOPT_STDCALL nlopt_minimize_econstrained(
nlopt_algorithm algorithm,
int n, nlopt_func_old f, void *f_data,
int m, nlopt_func_old fc, void *fc_data_, ptrdiff_t fc_datum_size,
int p, nlopt_func_old h, void *h_data_, ptrdiff_t h_datum_size,
const double *lb, const double *ub, /* bounds */
double *x, /* in: initial guess, out: minimizer */
double *minf, /* out: minimum */
double minf_max, double ftol_rel, double ftol_abs,
double xtol_rel, const double *xtol_abs,
double htol_rel, double htol_abs,
int maxeval, double maxtime)
{
char *fc_data = (char *) fc_data_;
char *h_data = (char *) h_data_;
nlopt_opt opt;
nlopt_result ret;
int i;
if (n < 0 || m < 0 || p < 0) return NLOPT_INVALID_ARGS;
opt = nlopt_create(algorithm, (unsigned) n);
if (!opt) return NLOPT_INVALID_ARGS;
ret = nlopt_set_min_objective(opt, (nlopt_func) f, f_data);
if (ret != NLOPT_SUCCESS) { nlopt_destroy(opt); return ret; }
for (i = 0; i < m; ++i) {
ret = nlopt_add_inequality_constraint(opt, (nlopt_func) fc,
fc_data + i*fc_datum_size,
0.0);
if (ret != NLOPT_SUCCESS) { nlopt_destroy(opt); return ret; }
}
(void) htol_rel; /* unused */
for (i = 0; i < p; ++i) {
ret = nlopt_add_equality_constraint(opt, (nlopt_func) h,
h_data + i*h_datum_size,
htol_abs);
if (ret != NLOPT_SUCCESS) { nlopt_destroy(opt); return ret; }
}
ret = nlopt_set_lower_bounds(opt, lb);
if (ret != NLOPT_SUCCESS) { nlopt_destroy(opt); return ret; }
ret = nlopt_set_upper_bounds(opt, ub);
if (ret != NLOPT_SUCCESS) { nlopt_destroy(opt); return ret; }
ret = nlopt_set_stopval(opt, minf_max);
if (ret != NLOPT_SUCCESS) { nlopt_destroy(opt); return ret; }
ret = nlopt_set_ftol_rel(opt, ftol_rel);
if (ret != NLOPT_SUCCESS) { nlopt_destroy(opt); return ret; }
ret = nlopt_set_ftol_abs(opt, ftol_abs);
if (ret != NLOPT_SUCCESS) { nlopt_destroy(opt); return ret; }
ret = nlopt_set_xtol_rel(opt, xtol_rel);
if (ret != NLOPT_SUCCESS) { nlopt_destroy(opt); return ret; }
ret = nlopt_set_xtol_abs(opt, xtol_abs);
if (ret != NLOPT_SUCCESS) { nlopt_destroy(opt); return ret; }
ret = nlopt_set_maxeval(opt, maxeval);
if (ret != NLOPT_SUCCESS) { nlopt_destroy(opt); return ret; }
ret = nlopt_set_maxtime(opt, maxtime);
if (ret != NLOPT_SUCCESS) { nlopt_destroy(opt); return ret; }
ret = nlopt_optimize(opt, x, minf);
nlopt_destroy(opt);
return ret;
}
double ColorLines::findMagnitude(const Mat *img, Mat *alpha_mat, double a[3])
{
int w=img->cols;
int h=img->rows;
int t=img->type();
int c;
if(img->type()==CV_8UC3){
c=3;
} else if(img->type()==CV_8UC1){
c=1;
}
uchar *p_data=img->data;
uchar *alpha_data=alpha_mat->data;
//cout << *alpha_mat << endl;
double img_div[h*w*c];
double *alpha=(double*)malloc(h*w*sizeof(double));
for(int i=0; i<h; i++){
for(int j=0; j<w; j++){
alpha[i*w+j]=(double)alpha_data[w*i+j]/255.0l;
for(int k=0; k<c; k++){
img_div[c*(w*i+j)+k]=(double(p_data[c*(w*i+j)+k])/255.0l)/a[k];
}
}
}
double *withoutA = (double*)malloc(h*w*c*sizeof(double));
double temp;
for(int i=0; i<h; i++){
for(int j=0; j<w; j++){
for(int k=0; k<c; k++){
temp=(double(p_data[c*(w*i+j)+k])/255.0l)-alpha[w*i+j]*a[k];
if(temp>0){
withoutA[c*(w*i+j)+k]=temp;
} else{
withoutA[c*(w*i+j)+k]=0;
}
}
}
}
double *gray=(double*)malloc(w*h*sizeof(double));
double initMag=0.5;
bool isNegative=true;
while(isNegative){
initMag+=0.1;
isNegative=false;
for(int i=0; i<h; i++){
for(int j=0; j<w; j++){
gray[w*i+j]=0;
for(int k=0; k<c; k++){
temp=withoutA[c*(w*i+j)+k]/(1-alpha[w*i+j]/initMag);
isNegative=temp<0;
gray[w*i+j]+=temp*temp;
}
gray[w*i+j]=sqrt(gray[w*i+j]);
}
}
}
double *transmission=(double*)malloc(w*h*sizeof(double));
for(int i=0; i<w*h; i++){
transmission[i]=1-alpha[i]/initMag;
}
double alpha_min=transmission[0];
double alpha_max=transmission[0];
for(int i=1; i<w*h; i++){
if(transmission[i]>alpha_max){
alpha_max=transmission[i];
} else if(transmission[i]<alpha_min){
alpha_min=transmission[i];
}
}
int numBins=50;
double binW=(alpha_max-alpha_min)/(double)numBins;
double mtrans[numBins+1];
double mshading[numBins+1];
mtrans[0]=alpha_min;
mshading[0]=0;
mtrans[numBins]=alpha_max;
for(int i=1; i<numBins; i++){
mtrans[i]=mtrans[i-1]+binW;
mshading[i]=0;
}
double val;
double *inBin=(double*)malloc(w*h*sizeof(double));
int ind;
for(int i=0; i<=numBins; i++){
ind=0;
val=mtrans[i]+binW/2.0;
for(int j=0; j<w*h; j++){
if(transmission[j]<val+binW/2.0 && transmission[j]>=val-binW/2.0){
inBin[ind]=gray[j];
ind++;
}
}
if(ind>100){
qsort(inBin, ind, sizeof(double), comp);
mshading[i]=inBin[(int)(0.995*ind+0.5)-1];
}
}
double ak[2];
ak[0]=1;
ak[1]=1;
struct_fitError entrada;
entrada.withoutA=withoutA;
entrada.alpha=alpha;
entrada.mshading=mshading;
entrada.h=w;
entrada.w=h;
entrada.c=c;
entrada.numBins=numBins;
entrada.initMag=initMag;
cout << " OPTIMIZATION " << endl;
nlopt_opt opt;
//algoritmos de minimização, nao sei qual e melhor..
opt = nlopt_create(NLOPT_GN_DIRECT_L, 2);
//opt = nlopt_create(NLOPT_GN_DIRECT, 2);
//opt = nlopt_create(NLOPT_GN_CRS2_LM, 2);
//opt = nlopt_create(NLOPT_GD_STOGO, 2);
//opt = nlopt_create( NLOPT_GD_STOGO_RAND, 2);
//opt = nlopt_create(NLOPT_GN_ISRES, 2);
//opt = nlopt_create(NLOPT_GN_ESCH, 2);
//valores maximos e minimos do espaço de busca, nao sei se 0 e 1 sao valores bons
double lb[2]={0,0};
double ub[2]={1,1};
nlopt_set_lower_bounds(opt, lb);
nlopt_set_upper_bounds(opt, ub);
nlopt_set_min_objective(opt, fitError, &entrada);
//acho que isso esta relacionado com a precisao, se aumentar o resultado fica ruim, se diminuir muito nao converge nunca
nlopt_set_xtol_rel(opt, 1e-1);
//numero maximo de iterações, pode ser que precise aumentar
nlopt_set_maxeval(opt, 500);
double minf;
if (nlopt_optimize(opt, ak, &minf) < 0) {
printf("nlopt failed!\n");
}
double mag=initMag/ak[0];
free(alpha);
free(gray);
free(inBin);
free(transmission);
//printf("resultado final: %f %f %f\n", ak[0], ak[1], mag);
return mag;
}
double Optimize_Torsion_Parameters(void)
{
double lb[N_PARA_MAX], ub[N_PARA_MAX];
double Chi_SQ;
int i, j, Pos;
n_Para = 10*n_Phi + 1;
memset(Is_Para_Fixed, 0, sizeof(int)*n_Para);
// memset(lb, 0, sizeof(double)*n_Para);
lb[n_Phi*10] = -HUGE_VAL;
for(i=0; i<n_Phi; i++) {
Pos = 10*i;
for(j=0; j<10; j+=2) { // ten parameters
lb[Pos+j] = -15.0;
ub[Pos+j] = 15.0;
}
for(j=1; j<10; j+=2) { // ten parameters
lb[Pos+j] = -M_PI;
ub[Pos+j] = +M_PI;
}
}
ub[n_Phi*10] = HUGE_VAL;
opt = nlopt_create(NLOPT_LN_COBYLA, n_Para);
nlopt_set_lower_bounds(opt, lb);
nlopt_set_upper_bounds(opt, ub);
nlopt_set_min_objective(opt, Callback_Eval_Gradient, NULL);
nlopt_set_xtol_rel(opt, 1e-6);
Collect_Torsion_Parameters();
Assign_Torsion_Parameters();
Cal_E_MM_Scaned();
Cal_E_MM_Rotamer();
Para_List[n_Phi*10] = E_Scan_QM_Mean-E_Scan_MM_Mean; // energy shift
E_Shift_0 = fabs(E_Scan_QM_Mean-E_Scan_MM_Mean);
for(i=0; i<n_Phi; i++) {
Pos = 10*i;
for(j=1; j<10; j+=2) { // the phase is fixed
Is_Para_Fixed[Pos+j] = 1;
}
}
Read_Parameters("saved-para.dat");
Chi_SQ_Min = 1.0E100;
memcpy(Para_Best, Para_List, sizeof(double)*n_Para);
Chi_SQ = CalObjectiveFunction(Para_List, 0);
if(ProgID == 0) {
fprintf(fFitting, "Iteration %4d Chi^2 = %.8lf Chi^2(1D) = %.8lf Chi^2(rotamer) = %.8lf\n",
0, Chi_SQ, Chi_SQ_1D, Chi_SQ_Rotamer);
fflush(fFitting);
}
FailCount = 0;
int ret= nlopt_optimize(opt, Para_List, &Chi_SQ);
if (ret < 0) {
printf("nlopt failed! :%d\n", ret);
}
else {
printf("Chi_SQ_min = %lf Chi_SQ = %lf\n", Chi_SQ_Min, Chi_SQ);
}
memcpy(Para_List, Para_Best, sizeof(double)*n_Para);
CalObjectiveFunction(Para_List, 1);
nlopt_destroy(opt);
return Chi_SQ_Min;
}
double Geoometry_Optimization_With_Constraint(CMol *pMol)
{
return (pMol->Cal_E(0));
nlopt_opt opt, opt_AugLag;
int Return_Opt, nAtom, nDim, i, iPos;
double E_min, x[MAX_NUM_ATOM*3];
Mol_ESP.Restrain_All_Torsions(1); // apply soft restraints on all soft dihedrals
nAtom = pMol->nAtom;
nDim = 3 * nAtom;
printf("\nMM before:\t");
for(i=0; i<n_Phi; i++) {
printf("%3d %3d %3d %3d %8.4lf\n", DihList[i][0], DihList[i][1], DihList[i][2], DihList[i][3],
Mol_ESP.Query_Dihedral(DihList[i][0], DihList[i][1], DihList[i][2], DihList[i][3], 0, NULL));
}
double AUG_LAG_ICM_TOL = 1.0E-17;
opt_AugLag = nlopt_create(NLOPT_LD_LBFGS_GEO, nDim);
nlopt_set_min_objective(opt_AugLag, func_Geo_Opt_Constraint, pMol);
// pMol->SavePdb("opt-free.pdb");
for(i=0; i<pMol->nBond_Fixed; i++) {
int ret=0;
pMol->Geo_Fix_r0[i].pMol = pMol;
ret =nlopt_add_equality_constraint(opt_AugLag, Geo_Constraint_Bond, &(pMol->Geo_Fix_r0[i]), 2.0E-6);
printf(" Fixing bond %d\n", i );
}
for(i=0; i<pMol->nAngle_Fixed; i++) {
int ret=0;
pMol->Geo_Fix_theta0[i].pMol = pMol;
ret=nlopt_add_equality_constraint(opt_AugLag, Geo_Constraint_Angle, &(pMol->Geo_Fix_theta0[i]), 2.0E-6);
printf(" Fixing angle %d\n", i );
}
for(i=0; i<pMol->nPhi_Fixed; i++) {
int ret=0;
pMol->Geo_Fix_phi0[i].pMol = pMol;
ret=nlopt_add_equality_constraint(opt_AugLag, Geo_Constraint_Dihedral, &(pMol->Geo_Fix_phi0[i]), 2.0E-6);
printf(" Fixing phi %d : %d\n", i, ret );
}
nlopt_set_xtol_rel(opt_AugLag, 2E-7);
// opt = nlopt_create(NLOPT_LD_LBFGS_GEO, nDim);
// opt = nlopt_create(NLOPT_LN_COBYLA, nDim);
// nlopt_set_min_objective(opt, func_Geo_Opt_Constraint, pMol);
// nlopt_set_xtol_rel(opt, 1E-7);
// nlopt_set_local_optimizer(opt_AugLag, opt);
// nlopt_destroy(opt);
for(i=0; i<nAtom; i++) {
iPos = 3*i;
x[iPos ] = pMol->x[i];
x[iPos+1] = pMol->y[i];
x[iPos+2] = pMol->z[i];
}
Iter_Opt_Constrained = 0;
Return_Opt = nlopt_optimize(opt_AugLag, x, &E_min);
if (Return_Opt < 0) {
printf("nlopt failed : %d\n", Return_Opt);
}
// else {
// printf("After constrained optimization, E = %12.6lf\n", E_min);
// }
nlopt_destroy(opt_AugLag);
printf("MM after:\t");
for(i=0; i<n_Phi; i++) {
printf("%3d %3d %3d %3d %8.4lf\n", DihList[i][0], DihList[i][1], DihList[i][2], DihList[i][3],
Mol_ESP.Query_Dihedral(DihList[i][0], DihList[i][1], DihList[i][2], DihList[i][3], 0, NULL));
}
Mol_ESP.Restrain_All_Torsions(0); // lift soft restraints on all soft dihedrals
return (pMol->Cal_E(0));
}
double Optimize_Torsion_Parameters(void)
{
double lb[N_TOR_PARA] = {
-20.0, -PI,
-20.0, -PI,
-20.0, -PI,
-20.0, -PI,
-20.0, -PI,
-100 };
double ub[N_TOR_PARA] = {
+20.0, +PI,
+20.0, +PI,
+20.0, +PI,
+20.0, +PI,
+20.0, +PI,
+100 };
// double ub[N_TOR_PARA] = { 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 100.0 }; /* lower bounds */
nlopt_opt opt;
double Chi_SQ;
int i, j;
Chi_SQ_Min = 1.0E100;
for(i=0; i<NRUN; i++) { // was 32
ActiveRun = i;
Chi_SQ_Min_Local[i] = 1.0E200;
FailCount = Iteration = 0;
// for(j=0; j<5; j++) {
// Para_Tor[2*j] = 0.1+1.0*rand(iseed);
// }
for( i=0; i<11; i++ ) {
Para_Tor[i] = 0.;
IsPara_Fixed[i] = 0.;
} // inital values
//opt = nlopt_create(NLOPT_LD_LBFGS, N_TOR_PARA);
printf("=== Fitting ===\n" );
opt = nlopt_create(NLOPT_LN_COBYLA, N_TOR_PARA);
nlopt_set_lower_bounds(opt, lb);
nlopt_set_upper_bounds(opt, ub);
nlopt_set_min_objective(opt, Callback_Eval_Gradient, NULL);
nlopt_set_xtol_rel(opt, 1e-8);
if (nlopt_optimize(opt, Para_Tor, &Chi_SQ) < 0) {
printf("nlopt didn't converge %lf %lf\n Please check carefully the rotamer results\n",Chi_SQ_Min, Chi_SQ);
}
else {
printf("Chi_SQ_min = %lf Chi_SQ = %lf\n", Chi_SQ_Min, Chi_SQ);
}
nlopt_destroy(opt);
}
memcpy(Para_Tor, Para_Best, sizeof(double)*N_TOR_PARA);
CalObjectiveFunction_Tor(Para_Tor);
return Chi_SQ_Min;
}
static int test_function(int ifunc)
{
nlopt_opt opt;
testfunc func;
int i, iter;
double *x, minf, minf_max, f0, *xtabs, *lb, *ub;
nlopt_result ret;
double start = nlopt_seconds();
int total_count = 0, max_count = 0, min_count = 1 << 30;
double total_err = 0, max_err = 0;
bounds_wrap_data bw;
if (ifunc < 0 || ifunc >= NTESTFUNCS) {
fprintf(stderr, "testopt: invalid function %d\n", ifunc);
listfuncs(stderr);
return 0;
}
func = testfuncs[ifunc];
x = (double *) malloc(sizeof(double) * func.n * 5);
if (!x) {
fprintf(stderr, "testopt: Out of memory!\n");
return 0;
}
lb = x + func.n * 3;
ub = lb + func.n;
xtabs = x + func.n * 2;
bw.lb = lb;
bw.ub = ub;
bw.f = func.f;
bw.f_data = func.f_data;
for (i = 0; i < func.n; ++i)
xtabs[i] = xtol_abs;
minf_max = minf_max_delta > (-HUGE_VAL) ? minf_max_delta + func.minf : (-HUGE_VAL);
printf("-----------------------------------------------------------\n");
printf("Optimizing %s (%d dims) using %s algorithm\n", func.name, func.n, nlopt_algorithm_name(algorithm));
printf("lower bounds at lb = [");
for (i = 0; i < func.n; ++i)
printf(" %g", func.lb[i]);
printf("]\n");
printf("upper bounds at ub = [");
for (i = 0; i < func.n; ++i)
printf(" %g", func.ub[i]);
printf("]\n");
memcpy(lb, func.lb, func.n * sizeof(double));
memcpy(ub, func.ub, func.n * sizeof(double));
for (i = 0; i < func.n; ++i)
if (fix_bounds[i]) {
printf("fixing bounds for dim[%d] to xmin[%d]=%g\n", i, i, func.xmin[i]);
lb[i] = ub[i] = func.xmin[i];
}
if (force_constraints) {
for (i = 0; i < func.n; ++i) {
if (nlopt_iurand(2) == 0)
ub[i] = nlopt_urand(lb[i], func.xmin[i]);
else
lb[i] = nlopt_urand(func.xmin[i], ub[i]);
}
printf("adjusted lower bounds at lb = [");
for (i = 0; i < func.n; ++i)
printf(" %g", lb[i]);
printf("]\n");
printf("adjusted upper bounds at ub = [");
for (i = 0; i < func.n; ++i)
printf(" %g", ub[i]);
printf("]\n");
}
if (fabs(func.f(func.n, func.xmin, 0, func.f_data) - func.minf) > 1e-8) {
fprintf(stderr, "BUG: function does not achieve given lower bound!\n");
fprintf(stderr, "f(%g", func.xmin[0]);
for (i = 1; i < func.n; ++i)
fprintf(stderr, ", %g", func.xmin[i]);
fprintf(stderr, ") = %0.16g instead of %0.16g, |diff| = %g\n", func.f(func.n, func.xmin, 0, func.f_data), func.minf, fabs(func.f(func.n, func.xmin, 0, func.f_data) - func.minf));
free(x);
return 0;
}
for (iter = 0; iter < iterations; ++iter) {
double val;
testfuncs_counter = 0;
printf("Starting guess x = [");
for (i = 0; i < func.n; ++i) {
if (center_start)
x[i] = (ub[i] + lb[i]) * 0.5;
else if (xinit_tol < 0) { /* random starting point near center of box */
double dx = (ub[i] - lb[i]) * 0.25;
double xm = 0.5 * (ub[i] + lb[i]);
x[i] = nlopt_urand(xm - dx, xm + dx);
} else {
x[i] = nlopt_urand(-xinit_tol, xinit_tol)
+ (1 + nlopt_urand(-xinit_tol, xinit_tol)) * func.xmin[i];
if (x[i] > ub[i])
x[i] = ub[i];
else if (x[i] < lb[i])
x[i] = lb[i];
}
printf(" %g", x[i]);
}
printf("]\n");
f0 = func.f(func.n, x, x + func.n, func.f_data);
printf("Starting function value = %g\n", f0);
if (iter == 0 && testfuncs_verbose && func.has_gradient) {
printf("checking gradient:\n");
for (i = 0; i < func.n; ++i) {
double f;
x[i] *= 1 + 1e-6;
f = func.f(func.n, x, NULL, func.f_data);
x[i] /= 1 + 1e-6;
printf(" grad[%d] = %g vs. numerical derivative %g\n", i, x[i + func.n], (f - f0) / (x[i] * 1e-6));
}
}
testfuncs_counter = 0;
opt = nlopt_create(algorithm, func.n);
nlopt_set_min_objective(opt, bounds_wrap_func, &bw);
nlopt_set_lower_bounds(opt, lb);
nlopt_set_upper_bounds(opt, ub);
nlopt_set_stopval(opt, minf_max);
nlopt_set_ftol_rel(opt, ftol_rel);
nlopt_set_ftol_abs(opt, ftol_abs);
nlopt_set_xtol_rel(opt, xtol_rel);
nlopt_set_xtol_abs(opt, xtabs);
nlopt_set_maxeval(opt, maxeval);
nlopt_set_maxtime(opt, maxtime);
ret = nlopt_optimize(opt, x, &minf);
printf("finished after %g seconds.\n", nlopt_seconds() - start);
printf("return code %d from nlopt_minimize\n", ret);
if (ret < 0 && ret != NLOPT_ROUNDOFF_LIMITED && ret != NLOPT_FORCED_STOP) {
fprintf(stderr, "testopt: error in nlopt_minimize\n");
free(x);
return 0;
}
printf("Found minimum f = %g after %d evaluations (numevals = %d).\n", minf, testfuncs_counter, nlopt_get_numevals(opt));
nlopt_destroy(opt);
total_count += testfuncs_counter;
if (testfuncs_counter > max_count)
max_count = testfuncs_counter;
if (testfuncs_counter < min_count)
min_count = testfuncs_counter;
printf("Minimum at x = [");
for (i = 0; i < func.n; ++i)
printf(" %g", x[i]);
printf("]\n");
if (func.minf == 0)
printf("|f - minf| = %g\n", fabs(minf - func.minf));
else
printf("|f - minf| = %g, |f - minf| / |minf| = %e\n", fabs(minf - func.minf), fabs(minf - func.minf) / fabs(func.minf));
total_err += fabs(minf - func.minf);
if (fabs(minf - func.minf) > max_err)
max_err = fabs(minf - func.minf);
printf("vs. global minimum f = %g at x = [", func.minf);
for (i = 0; i < func.n; ++i)
printf(" %g", func.xmin[i]);
printf("]\n");
val = func.f(func.n, x, NULL, func.f_data);
if (fabs(val - minf) > 1e-12) {
fprintf(stderr, "Mismatch %g between returned minf=%g and f(x) = %g\n", minf - val, minf, val);
free(x);
return 0;
}
}
if (iterations > 1)
printf("average #evaluations = %g (%d-%d)\naverage |f-minf| = %g, max |f-minf| = %g\n", total_count * 1.0 / iterations, min_count, max_count, total_err / iterations, max_err);
free(x);
return 1;
}
void omxInvokeNLOPT(double *est, GradientOptimizerContext &goc)
{
goc.optName = "SLSQP";
goc.setupSimpleBounds();
goc.useGradient = true;
FitContext *fc = goc.fc;
int oldWanted = fc->wanted;
fc->wanted = 0;
omxState *globalState = fc->state;
nlopt_opt opt = nlopt_create(NLOPT_LD_SLSQP, fc->numParam);
goc.extraData = opt;
//local_opt = nlopt_create(NLOPT_LD_SLSQP, n); // Subsidiary algorithm
//nlopt_set_local_optimizer(opt, local_opt);
nlopt_set_lower_bounds(opt, goc.solLB.data());
nlopt_set_upper_bounds(opt, goc.solUB.data());
int eq, ieq;
globalState->countNonlinearConstraints(eq, ieq);
if (fc->CI) {
nlopt_set_xtol_rel(opt, 5e-3);
std::vector<double> tol(fc->numParam, std::numeric_limits<double>::epsilon());
nlopt_set_xtol_abs(opt, tol.data());
} else {
// The *2 is there to roughly equate accuracy with NPSOL.
nlopt_set_ftol_rel(opt, goc.ControlTolerance * 2);
nlopt_set_ftol_abs(opt, std::numeric_limits<double>::epsilon());
}
nlopt_set_min_objective(opt, SLSQP::nloptObjectiveFunction, &goc);
double feasibilityTolerance = Global->feasibilityTolerance;
SLSQP::context ctx(goc);
if (eq + ieq) {
ctx.origeq = eq;
if (ieq > 0){
goc.inequality.resize(ieq);
std::vector<double> tol(ieq, feasibilityTolerance);
nlopt_add_inequality_mconstraint(opt, ieq, SLSQP::nloptInequalityFunction, &goc, tol.data());
}
if (eq > 0){
goc.equality.resize(eq);
std::vector<double> tol(eq, feasibilityTolerance);
nlopt_add_equality_mconstraint(opt, eq, SLSQP::nloptEqualityFunction, &ctx, tol.data());
}
}
int priorIterations = fc->iterations;
int code = nlopt_optimize(opt, est, &fc->fit);
if (ctx.eqredundent) {
nlopt_remove_equality_constraints(opt);
eq -= ctx.eqredundent;
std::vector<double> tol(eq, feasibilityTolerance);
nlopt_add_equality_mconstraint(opt, eq, SLSQP::nloptEqualityFunction, &ctx, tol.data());
code = nlopt_optimize(opt, est, &fc->fit);
}
if (goc.verbose >= 2) mxLog("nlopt_optimize returned %d", code);
nlopt_destroy(opt);
fc->wanted = oldWanted;
if (code == NLOPT_INVALID_ARGS) {
Rf_error("NLOPT invoked with invalid arguments");
} else if (code == NLOPT_OUT_OF_MEMORY) {
Rf_error("NLOPT ran out of memory");
} else if (code == NLOPT_FORCED_STOP) {
if (fc->iterations - priorIterations <= 1) {
goc.informOut = INFORM_STARTING_VALUES_INFEASIBLE;
} else {
goc.informOut = INFORM_ITERATION_LIMIT;
}
} else if (code == NLOPT_ROUNDOFF_LIMITED) {
if (fc->iterations - priorIterations <= 2) {
Rf_error("%s: Failed due to singular matrix E or C in LSQ subproblem or "
"rank-deficient equality constraint subproblem or "
"positive directional derivative in line search", goc.optName);
} else {
goc.informOut = INFORM_NOT_AT_OPTIMUM; // is this correct? TODO
}
} else if (code < 0) {
Rf_error("NLOPT fatal error %d", code);
} else if (code == NLOPT_MAXEVAL_REACHED) {
goc.informOut = INFORM_ITERATION_LIMIT;
} else {
goc.informOut = INFORM_CONVERGED_OPTIMUM;
}
}
double Optimize_Torsion_Parameters(void)
{
double lb[N_TOR_PARA] = { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, -100.0 }; /* lower bounds */
double ub[N_TOR_PARA] = { 12.0, 12.0, 12.0, 12.0, 12.0, 12.0, 12.0, 12.0, 12.0, 12.0, 100.0 }; /* lower bounds */
// double ub[N_TOR_PARA] = { 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 8.0, 100.0 }; /* lower bounds */
double Phase[32][5]={{0, 0, 0, 0, 0}, {0, 0, 0, 0, PI}, {0, 0, 0, PI, 0}, {0, 0, 0, PI, PI}, {0, 0, PI, 0, 0}, {0, 0, PI, 0, PI}, {0, 0, PI, PI, 0}, {0, 0, PI, PI, PI}, {0, PI, 0, 0, 0}, {0, PI, 0, 0, PI},
{0, PI, 0, PI, 0}, {0, PI, 0, PI, PI}, {0, PI, PI, 0, 0}, {0, PI, PI, 0, PI}, {0, PI, PI, PI, 0}, {0, PI, PI, PI, PI}, {PI, 0, 0, 0, 0}, {PI, 0, 0, 0, PI}, {PI, 0, 0, PI, 0}, {PI, 0, 0, PI, PI},
{PI, 0, PI, 0, 0}, {PI, 0, PI, 0, PI}, {PI, 0, PI, PI, 0}, {PI, 0, PI, PI, PI}, {PI, PI, 0, 0, 0}, {PI, PI, 0, 0, PI}, {PI, PI, 0, PI, 0}, {PI, PI, 0, PI, PI}, {PI, PI, PI, 0, 0}, {PI, PI, PI, 0, PI},
{PI, PI, PI, PI, 0}, {PI, PI, PI, PI, PI}};
nlopt_opt opt;
double Chi_SQ;
int i, j;
Chi_SQ_Min = 1.0E100;
iseed = time(NULL);
for(i=0; i<32; i++) {
ActiveRun = i;
Chi_SQ_Min_Local[i] = 1.0E200;
FailCount = Iteration = 0;
// for(j=0; j<5; j++) {
// Para_Tor[2*j] = 0.1+1.0*rand(iseed);
// }
Para_Tor[0] = Para_Tor[2] = Para_Tor[4] = Para_Tor[6] = Para_Tor[8] = 1.0;
for(j=0; j<5; j++) {
Para_Tor[2*j+1] = Phase[i][j];
lb[2*j+1] = Para_Tor[2*j+1];
ub[2*j+1] = Para_Tor[2*j+1];
}
// Para_Tor[1] = Para_Tor[3] = Para_Tor[5] = Para_Tor[7] = Para_Tor[9] = 0.0;
Para_Tor[10] = 0.0;
IsPara_Fixed[1] = IsPara_Fixed[3] = IsPara_Fixed[5] = IsPara_Fixed[7] = IsPara_Fixed[9] = 1;
//for test
// IsPara_Fixed[6] = 1; Para_Tor[6] = 0.0;
opt = nlopt_create(NLOPT_LD_LBFGS, N_TOR_PARA);
nlopt_set_lower_bounds(opt, lb);
nlopt_set_upper_bounds(opt, ub);
nlopt_set_min_objective(opt, Callback_Eval_Gradient, NULL);
nlopt_set_xtol_rel(opt, 1e-8);
if (nlopt_optimize(opt, Para_Tor, &Chi_SQ) < 0) {
printf("nlopt didn't converge %lf %lf\n Please check carefully the rotamer results\n",Chi_SQ_Min, Chi_SQ);
}
else {
printf("Chi_SQ_min = %lf Chi_SQ = %lf\n", Chi_SQ_Min, Chi_SQ);
}
nlopt_destroy(opt);
}
memcpy(Para_Tor, Para_Best, sizeof(double)*N_TOR_PARA);
CalObjectiveFunction_Tor(Para_Tor);
return Chi_SQ_Min;
}
int solve(const int *i, const int *j, const double *a, const double* b,const int num_constraints, double *phi_dist_approximate, const double *phi_lb, const int s , const double constraint_eps, const double solution_convergence_eps, double * phi_result )
{
if(num_constraints > s){
std::cout<< "SHIT! too many constraints!";
throw(0);
}
nlopt_opt opt;
// use local optimization
opt = nlopt_create(NLOPT_LD_SLSQP, s);
//opt = nlopt_create(NLOPT_GN_ISRES, s);
// set lower bound to not less than phi before damge evolution
double *lb = new double[s];
for(int k=0;k<s;k++) lb[k]=phi_lb[k];
nlopt_set_lower_bounds(opt, lb);
my_function_data func_data={phi_dist_approximate, s};
nlopt_set_min_objective(opt, myfunc, &func_data);
std::vector<my_constraint_data> data(num_constraints);
for(int k=0;k<num_constraints;k++) {
data[k].a=a[k];
data[k].b=b[k];
data[k].i=i[k];
data[k].j=j[k];
data[k].s=s;
nlopt_add_equality_constraint(opt,myconstraint, &data[k],constraint_eps);
}
nlopt_set_xtol_rel(opt, solution_convergence_eps);
double *x = new double[s];
for(int k=0;k<s;k++) {
x[k]= (phi_dist_approximate[k]<lb[k]) ? lb[k]:phi_dist_approximate[k]; // need to let the initialial guess in bound!!
}
double minf;
int result= nlopt_optimize(opt,x,&minf);
if(result > 0){
for(int k=0; k<s;k++){
phi_result[k]=x[k];
}
}
else{
std::cout<<"FATAL ERROR! Can't solve optimization.\n";
std::cout<<result<<std::endl;
std::cout<<minf<<std::endl;
}
nlopt_destroy(opt);
delete []lb;
delete []x;
return result;
}
int main(int argc, char *argv[]) {
int opt=0, verb=0;
int max_harm = 64, max_lag=0;
int isub = 1;
while ((opt=getopt(argc,argv,"hvI:H:L:"))!=-1) {
switch (opt) {
case 'v':
verb++;
break;
case 'I':
isub = atoi(optarg);
break;
case 'H':
max_harm = atoi(optarg);
break;
case 'L':
max_lag = atoi(optarg);
break;
case 'h':
usage();
exit(0);
break;
}
}
if (optind==argc) {
usage();
exit(1);
}
int i, rv;
/* Open file */
fitsfile *f;
int status;
fits_open_file(&f, argv[optind], READONLY, &status);
fits_error_check_fatal();
/* Get basic dims */
struct cyclic_work w;
cyclic_load_params(f, &w, &status);
fits_error_check_fatal();
if (verb) {
printf("Read nphase=%d npol=%d nchan=%d\n",
w.nphase, w.npol, w.nchan);
fflush(stdout);
}
int orig_npol = w.npol;
w.npol = 1;
/* Init FFTs */
fftwf_init_threads();
fftwf_plan_with_nthreads(4);
if (verb) { printf("Planning FFTs\n"); fflush(stdout); }
#define WF "/home/pdemores/share/cyclic_wisdom.dat"
FILE *wf = fopen(WF,"r");
if (wf!=NULL) { fftwf_import_wisdom_from_file(wf); fclose(wf); }
rv = cyclic_init_ffts(&w);
if (rv) {
fprintf(stderr, "Error planning ffts (rv=%d)\n", rv);
exit(1);
}
wf = fopen(WF,"w");
if (wf!=NULL) { fftwf_export_wisdom_to_file(wf); fclose(wf); }
/* Alloc some stuff */
struct periodic_spectrum raw;
struct cyclic_spectrum cs, model_cs;
struct filter_time ht;
struct filter_freq hf;
struct profile_phase pp;
struct profile_harm ph;
raw.nphase = pp.nphase = w.nphase;
raw.nchan = cs.nchan = hf.nchan = w.nchan;
cs.nharm = ph.nharm = w.nharm;
ht.nlag = w.nlag;
raw.npol = orig_npol;
cs.npol = 1;
model_cs.nchan = cs.nchan;
model_cs.nharm = cs.nharm;
model_cs.npol = cs.npol;
cyclic_alloc_ps(&raw);
cyclic_alloc_cs(&cs);
cyclic_alloc_cs(&model_cs);
filter_alloc_time(&ht);
filter_alloc_freq(&hf);
profile_alloc_phase(&pp);
profile_alloc_harm(&ph);
#if 0 // XXX not implemented yet
/* Check bounds */
if (max_harm > w.nharm) { max_harm = w.nharm; }
if (max_lag > w.nlag/2) { max_lag = w.nlag/2; }
if (verb) {
printf("Using max of %d harmonics and %d lags\n", max_harm, max_lag);
}
#endif
/* Load data */
cyclic_load_ps(f, &raw, isub, &status);
fits_error_check_fatal();
/* Add polns w/o calibration */
cyclic_pscrunch_ps(&raw, 1.0, 1.0);
/* Initialize H, profile guesses */
cyclic_fscrunch_ps(&pp, &raw);
profile_phase2harm(&pp, &ph, &w);
ht.data[0] = 1.0;
for (i=1; i<ht.nlag; i++) { ht.data[i] = 0.0; }
filter_profile_norm(&ht, &ph, w.nharm);
profile_harm2phase(&ph, &pp, &w);
/* convert input data to cyclic spectrum */
cyclic_ps2cs(&raw, &cs, &w);
/* could output initial profile */
/* Fill in data struct for nlopt */
struct cyclic_data cdata;
cdata.cs = &cs;
cdata.s0 = &ph;
cdata.ht = &ht;
cdata.model_cs = &model_cs;
cdata.w = &w;
/* Set up minimizer */
const int dim = 2*(w.nharm-1) + 2*w.nlag; /* number of free params */
printf("number of fit params = %d\n", dim);
nlopt_opt op;
op = nlopt_create(NLOPT_LN_COBYLA, dim);
nlopt_set_min_objective(op, cyclic_ms_difference_nlopt, &cdata);
nlopt_set_xtol_rel(op, 1e-4);
/* Set up initial params */
double *x = (double *)malloc(sizeof(double) * dim);
double *xtmp = x;
for (i=1; i<ph.nharm; i++) {
xtmp[0] = creal(ph.data[i]);
xtmp[1] = cimag(ph.data[i]);
xtmp += 2;
}
for (i=0; i<ht.nlag; i++) {
xtmp[0] = creal(ht.data[i]);
xtmp[1] = cimag(ht.data[i]);
xtmp += 2;
}
/* Run optimization */
double min;
if (nlopt_optimize(op, x, &min)) {
fprintf(stderr, "nlopt_optimize failed\n");
exit(1);
}
/* TODO: some kind of output */
/* All done :) */
nlopt_destroy(op);
exit(0);
}
/* unlike nlopt_optimize() below, only handles minimization case */
static nlopt_result nlopt_optimize_(nlopt_opt opt, double *x, double *minf)
{
const double *lb, *ub;
nlopt_algorithm algorithm;
nlopt_func f; void *f_data;
unsigned n, i;
int ni;
nlopt_stopping stop;
if (!opt || !x || !minf || !opt->f
|| opt->maximize) return NLOPT_INVALID_ARGS;
/* reset stopping flag */
nlopt_set_force_stop(opt, 0);
opt->force_stop_child = NULL;
/* copy a few params to local vars for convenience */
n = opt->n;
ni = (int) n; /* most of the subroutines take "int" arg */
lb = opt->lb; ub = opt->ub;
algorithm = opt->algorithm;
f = opt->f; f_data = opt->f_data;
if (n == 0) { /* trivial case: no degrees of freedom */
*minf = opt->f(n, x, NULL, opt->f_data);
return NLOPT_SUCCESS;
}
*minf = HUGE_VAL;
/* make sure rand generator is inited */
nlopt_srand_time_default(); /* default is non-deterministic */
/* check bound constraints */
for (i = 0; i < n; ++i)
if (lb[i] > ub[i] || x[i] < lb[i] || x[i] > ub[i])
return NLOPT_INVALID_ARGS;
stop.n = n;
stop.minf_max = opt->stopval;
stop.ftol_rel = opt->ftol_rel;
stop.ftol_abs = opt->ftol_abs;
stop.xtol_rel = opt->xtol_rel;
stop.xtol_abs = opt->xtol_abs;
stop.nevals = 0;
stop.maxeval = opt->maxeval;
stop.maxtime = opt->maxtime;
stop.start = nlopt_seconds();
stop.force_stop = &(opt->force_stop);
switch (algorithm) {
case NLOPT_GN_DIRECT:
case NLOPT_GN_DIRECT_L:
case NLOPT_GN_DIRECT_L_RAND:
if (!finite_domain(n, lb, ub)) return NLOPT_INVALID_ARGS;
return cdirect(ni, f, f_data,
lb, ub, x, minf, &stop, 0.0,
(algorithm != NLOPT_GN_DIRECT)
+ 3 * (algorithm == NLOPT_GN_DIRECT_L_RAND
? 2 : (algorithm != NLOPT_GN_DIRECT))
+ 9 * (algorithm == NLOPT_GN_DIRECT_L_RAND
? 1 : (algorithm != NLOPT_GN_DIRECT)));
case NLOPT_GN_DIRECT_NOSCAL:
case NLOPT_GN_DIRECT_L_NOSCAL:
case NLOPT_GN_DIRECT_L_RAND_NOSCAL:
if (!finite_domain(n, lb, ub)) return NLOPT_INVALID_ARGS;
return cdirect_unscaled(ni, f, f_data, lb, ub, x, minf,
&stop, 0.0,
(algorithm != NLOPT_GN_DIRECT)
+ 3 * (algorithm == NLOPT_GN_DIRECT_L_RAND ? 2 : (algorithm != NLOPT_GN_DIRECT))
+ 9 * (algorithm == NLOPT_GN_DIRECT_L_RAND ? 1 : (algorithm != NLOPT_GN_DIRECT)));
case NLOPT_GN_ORIG_DIRECT:
case NLOPT_GN_ORIG_DIRECT_L: {
direct_return_code dret;
if (!finite_domain(n, lb, ub)) return NLOPT_INVALID_ARGS;
opt->work = malloc(sizeof(double) *
nlopt_max_constraint_dim(opt->m,
opt->fc));
if (!opt->work) return NLOPT_OUT_OF_MEMORY;
dret = direct_optimize(f_direct, opt, ni, lb, ub, x, minf,
stop.maxeval, -1,
stop.start, stop.maxtime,
0.0, 0.0,
pow(stop.xtol_rel, (double) n), -1.0,
stop.force_stop,
stop.minf_max, 0.0,
NULL,
algorithm == NLOPT_GN_ORIG_DIRECT
? DIRECT_ORIGINAL
: DIRECT_GABLONSKY);
free(opt->work); opt->work = NULL;
switch (dret) {
case DIRECT_INVALID_BOUNDS:
case DIRECT_MAXFEVAL_TOOBIG:
case DIRECT_INVALID_ARGS:
return NLOPT_INVALID_ARGS;
case DIRECT_INIT_FAILED:
case DIRECT_SAMPLEPOINTS_FAILED:
case DIRECT_SAMPLE_FAILED:
return NLOPT_FAILURE;
case DIRECT_MAXFEVAL_EXCEEDED:
case DIRECT_MAXITER_EXCEEDED:
return NLOPT_MAXEVAL_REACHED;
case DIRECT_MAXTIME_EXCEEDED:
return NLOPT_MAXTIME_REACHED;
case DIRECT_GLOBAL_FOUND:
return NLOPT_MINF_MAX_REACHED;
case DIRECT_VOLTOL:
case DIRECT_SIGMATOL:
return NLOPT_XTOL_REACHED;
case DIRECT_OUT_OF_MEMORY:
return NLOPT_OUT_OF_MEMORY;
case DIRECT_FORCED_STOP:
return NLOPT_FORCED_STOP;
}
break;
}
case NLOPT_GD_STOGO:
case NLOPT_GD_STOGO_RAND:
#ifdef WITH_CXX
if (!finite_domain(n, lb, ub)) return NLOPT_INVALID_ARGS;
if (!stogo_minimize(ni, f, f_data, x, minf, lb, ub, &stop,
algorithm == NLOPT_GD_STOGO
? 0 : (int) POP(2*n)))
return NLOPT_FAILURE;
break;
#else
return NLOPT_INVALID_ARGS;
#endif
#if 0
/* lacking a free/open-source license, we no longer use
Rowan's code, and instead use by "sbplx" re-implementation */
case NLOPT_LN_SUBPLEX: {
int iret, freedx = 0;
if (!opt->dx) {
freedx = 1;
if (nlopt_set_default_initial_step(opt, x) != NLOPT_SUCCESS)
return NLOPT_OUT_OF_MEMORY;
}
iret = nlopt_subplex(f_bound, minf, x, n, opt, &stop, opt->dx);
if (freedx) { free(opt->dx); opt->dx = NULL; }
switch (iret) {
case -2: return NLOPT_INVALID_ARGS;
case -20: return NLOPT_FORCED_STOP;
case -10: return NLOPT_MAXTIME_REACHED;
case -1: return NLOPT_MAXEVAL_REACHED;
case 0: return NLOPT_XTOL_REACHED;
case 1: return NLOPT_SUCCESS;
case 2: return NLOPT_MINF_MAX_REACHED;
case 20: return NLOPT_FTOL_REACHED;
case -200: return NLOPT_OUT_OF_MEMORY;
default: return NLOPT_FAILURE; /* unknown return code */
}
break;
}
#endif
case NLOPT_LN_PRAXIS: {
double step;
if (initial_step(opt, x, &step) != NLOPT_SUCCESS)
return NLOPT_OUT_OF_MEMORY;
return praxis_(0.0, DBL_EPSILON,
step, ni, x, f_bound, opt, &stop, minf);
}
case NLOPT_LD_LBFGS:
return luksan_plis(ni, f, f_data, lb, ub, x, minf,
&stop, opt->vector_storage);
case NLOPT_LD_VAR1:
case NLOPT_LD_VAR2:
return luksan_plip(ni, f, f_data, lb, ub, x, minf,
&stop, opt->vector_storage,
algorithm == NLOPT_LD_VAR1 ? 1 : 2);
case NLOPT_LD_TNEWTON:
case NLOPT_LD_TNEWTON_RESTART:
case NLOPT_LD_TNEWTON_PRECOND:
case NLOPT_LD_TNEWTON_PRECOND_RESTART:
return luksan_pnet(ni, f, f_data, lb, ub, x, minf,
&stop, opt->vector_storage,
1 + (algorithm - NLOPT_LD_TNEWTON) % 2,
1 + (algorithm - NLOPT_LD_TNEWTON) / 2);
case NLOPT_GN_CRS2_LM:
if (!finite_domain(n, lb, ub)) return NLOPT_INVALID_ARGS;
return crs_minimize(ni, f, f_data, lb, ub, x, minf, &stop,
(int) POP(0), 0);
case NLOPT_G_MLSL:
case NLOPT_G_MLSL_LDS:
case NLOPT_GN_MLSL:
case NLOPT_GD_MLSL:
case NLOPT_GN_MLSL_LDS:
case NLOPT_GD_MLSL_LDS: {
nlopt_opt local_opt = opt->local_opt;
nlopt_result ret;
if (!finite_domain(n, lb, ub)) return NLOPT_INVALID_ARGS;
if (!local_opt && (algorithm == NLOPT_G_MLSL
|| algorithm == NLOPT_G_MLSL_LDS))
return NLOPT_INVALID_ARGS;
if (!local_opt) { /* default */
nlopt_algorithm local_alg = (algorithm == NLOPT_GN_MLSL ||
algorithm == NLOPT_GN_MLSL_LDS)
? nlopt_local_search_alg_nonderiv
: nlopt_local_search_alg_deriv;
/* don't call MLSL recursively! */
if (local_alg >= NLOPT_GN_MLSL
&& local_alg <= NLOPT_GD_MLSL_LDS)
local_alg = (algorithm == NLOPT_GN_MLSL ||
algorithm == NLOPT_GN_MLSL_LDS)
? NLOPT_LN_COBYLA : NLOPT_LD_MMA;
local_opt = nlopt_create(local_alg, n);
if (!local_opt) return NLOPT_FAILURE;
nlopt_set_ftol_rel(local_opt, opt->ftol_rel);
nlopt_set_ftol_abs(local_opt, opt->ftol_abs);
nlopt_set_xtol_rel(local_opt, opt->xtol_rel);
nlopt_set_xtol_abs(local_opt, opt->xtol_abs);
nlopt_set_maxeval(local_opt, nlopt_local_search_maxeval);
}
if (opt->dx) nlopt_set_initial_step(local_opt, opt->dx);
for (i = 0; i < n && stop.xtol_abs[i] > 0; ++i) ;
if (local_opt->ftol_rel <= 0 && local_opt->ftol_abs <= 0 &&
local_opt->xtol_rel <= 0 && i < n) {
/* it is not sensible to call MLSL without *some*
nonzero tolerance for the local search */
nlopt_set_ftol_rel(local_opt, 1e-15);
nlopt_set_xtol_rel(local_opt, 1e-7);
}
opt->force_stop_child = local_opt;
ret = mlsl_minimize(ni, f, f_data, lb, ub, x, minf, &stop,
local_opt, (int) POP(0),
algorithm >= NLOPT_GN_MLSL_LDS &&
algorithm != NLOPT_G_MLSL);
opt->force_stop_child = NULL;
if (!opt->local_opt) nlopt_destroy(local_opt);
return ret;
}
case NLOPT_LD_MMA: case NLOPT_LD_CCSAQ: {
nlopt_opt dual_opt;
nlopt_result ret;
#define LO(param, def) (opt->local_opt ? opt->local_opt->param : (def))
dual_opt = nlopt_create(LO(algorithm,
nlopt_local_search_alg_deriv),
nlopt_count_constraints(opt->m,
opt->fc));
if (!dual_opt) return NLOPT_FAILURE;
nlopt_set_ftol_rel(dual_opt, LO(ftol_rel, 1e-14));
nlopt_set_ftol_abs(dual_opt, LO(ftol_abs, 0.0));
nlopt_set_maxeval(dual_opt, LO(maxeval, 100000));
#undef LO
if (algorithm == NLOPT_LD_MMA)
ret = mma_minimize(n, f, f_data, opt->m, opt->fc,
lb, ub, x, minf, &stop, dual_opt);
else
ret = ccsa_quadratic_minimize(
n, f, f_data, opt->m, opt->fc, opt->pre,
lb, ub, x, minf, &stop, dual_opt);
nlopt_destroy(dual_opt);
return ret;
}
case NLOPT_LN_COBYLA: {
nlopt_result ret;
int freedx = 0;
if (!opt->dx) {
freedx = 1;
if (nlopt_set_default_initial_step(opt, x) != NLOPT_SUCCESS)
return NLOPT_OUT_OF_MEMORY;
}
return cobyla_minimize(n, f, f_data,
opt->m, opt->fc,
opt->p, opt->h,
lb, ub, x, minf, &stop,
opt->dx);
if (freedx) { free(opt->dx); opt->dx = NULL; }
return ret;
}
case NLOPT_LN_NEWUOA: {
double step;
if (initial_step(opt, x, &step) != NLOPT_SUCCESS)
return NLOPT_OUT_OF_MEMORY;
return newuoa(ni, 2*n+1, x, 0, 0, step,
&stop, minf, f_noderiv, opt);
}
case NLOPT_LN_NEWUOA_BOUND: {
double step;
if (initial_step(opt, x, &step) != NLOPT_SUCCESS)
return NLOPT_OUT_OF_MEMORY;
return newuoa(ni, 2*n+1, x, lb, ub, step,
&stop, minf, f_noderiv, opt);
}
case NLOPT_LN_BOBYQA: {
nlopt_result ret;
int freedx = 0;
if (!opt->dx) {
freedx = 1;
if (nlopt_set_default_initial_step(opt, x) != NLOPT_SUCCESS)
return NLOPT_OUT_OF_MEMORY;
}
ret = bobyqa(ni, 2*n+1, x, lb, ub, opt->dx,
&stop, minf, opt->f, opt->f_data);
if (freedx) { free(opt->dx); opt->dx = NULL; }
return ret;
}
case NLOPT_LN_NELDERMEAD:
case NLOPT_LN_SBPLX:
{
nlopt_result ret;
int freedx = 0;
if (!opt->dx) {
freedx = 1;
if (nlopt_set_default_initial_step(opt, x) != NLOPT_SUCCESS)
return NLOPT_OUT_OF_MEMORY;
}
if (algorithm == NLOPT_LN_NELDERMEAD)
ret= nldrmd_minimize(ni,f,f_data,lb,ub,x,minf,opt->dx,&stop);
else
ret= sbplx_minimize(ni,f,f_data,lb,ub,x,minf,opt->dx,&stop);
if (freedx) { free(opt->dx); opt->dx = NULL; }
return ret;
}
case NLOPT_AUGLAG:
case NLOPT_AUGLAG_EQ:
case NLOPT_LN_AUGLAG:
case NLOPT_LN_AUGLAG_EQ:
case NLOPT_LD_AUGLAG:
case NLOPT_LD_AUGLAG_EQ: {
nlopt_opt local_opt = opt->local_opt;
nlopt_result ret;
if ((algorithm == NLOPT_AUGLAG || algorithm == NLOPT_AUGLAG_EQ)
&& !local_opt)
return NLOPT_INVALID_ARGS;
if (!local_opt) { /* default */
local_opt = nlopt_create(
algorithm == NLOPT_LN_AUGLAG ||
algorithm == NLOPT_LN_AUGLAG_EQ
? nlopt_local_search_alg_nonderiv
: nlopt_local_search_alg_deriv, n);
if (!local_opt) return NLOPT_FAILURE;
nlopt_set_ftol_rel(local_opt, opt->ftol_rel);
nlopt_set_ftol_abs(local_opt, opt->ftol_abs);
nlopt_set_xtol_rel(local_opt, opt->xtol_rel);
nlopt_set_xtol_abs(local_opt, opt->xtol_abs);
nlopt_set_maxeval(local_opt, nlopt_local_search_maxeval);
}
if (opt->dx) nlopt_set_initial_step(local_opt, opt->dx);
opt->force_stop_child = local_opt;
ret = auglag_minimize(ni, f, f_data,
opt->m, opt->fc,
opt->p, opt->h,
lb, ub, x, minf, &stop,
local_opt,
algorithm == NLOPT_AUGLAG_EQ
|| algorithm == NLOPT_LN_AUGLAG_EQ
|| algorithm == NLOPT_LD_AUGLAG_EQ);
opt->force_stop_child = NULL;
if (!opt->local_opt) nlopt_destroy(local_opt);
return ret;
}
case NLOPT_GN_ISRES:
if (!finite_domain(n, lb, ub)) return NLOPT_INVALID_ARGS;
return isres_minimize(ni, f, f_data,
(int) (opt->m), opt->fc,
(int) (opt->p), opt->h,
lb, ub, x, minf, &stop,
(int) POP(0));
// case NLOPT_GN_ESCH:
// if (!finite_domain(n, lb, ub)) return NLOPT_INVALID_ARGS;
// return chevolutionarystrategy(n, f, f_data,
// lb, ub, x, minf, &stop,
// (unsigned) POP(0),
// (unsigned) (POP(0)*1.5));
case NLOPT_LD_SLSQP:
return nlopt_slsqp(n, f, f_data,
opt->m, opt->fc,
opt->p, opt->h,
lb, ub, x, minf, &stop);
default:
return NLOPT_INVALID_ARGS;
}
return NLOPT_SUCCESS; /* never reached */
}
void minim_nlopt(density_t *ndft){
nlopt_opt opt;
double minf;
int i, status;
double *x;
nlopt_function_data function_data;
nlopt_par par;
x = (double *)malloc(ipf.npar*sizeof(double));
for(i = 0; i < ipf.npar; i++) x[i] = gsl_vector_get(ipf.gamma, i);
/* Here we choose the minimization method from NLOPT (check the
avaible algorithms at
http://ab-initio.mit.edu/wiki/index.php/NLopt_Algorithms)
and specify the dimension of the problem */
par.algorithm = 1; parse_int("nlopt_algorithm", &par.algorithm);
switch(par.algorithm){
case 1 :
opt = nlopt_create(NLOPT_LN_BOBYQA, ipf.npar);
if(myid == 0) printf("\n\n%s", nlopt_algorithm_name(NLOPT_LN_BOBYQA));
break;
case 2 :
opt = nlopt_create(NLOPT_GN_DIRECT, ipf.npar);
if(myid == 0) printf("\n\n%s", nlopt_algorithm_name(NLOPT_GN_DIRECT));
break;
case 3 :
opt = nlopt_create(NLOPT_GD_STOGO, ipf.npar);
if(myid == 0) printf("\n\n%s", nlopt_algorithm_name(NLOPT_GD_STOGO));
break;
case 4:
opt = nlopt_create(NLOPT_GN_ESCH, ipf.npar);
if(myid == 0) printf("\n\n%s", nlopt_algorithm_name(NLOPT_GN_ESCH));
break;
default :
if(myid == 0) printf("\n\nWARNING: wrong choice for the NLOPT algorithm\nTHe optimization will start with the default algorithm:");
opt = nlopt_create(NLOPT_GN_DIRECT_L, ipf.npar);
if(myid == 0) printf("\n%s", nlopt_algorithm_name(NLOPT_GN_DIRECT_L));
break;
}
nlopt_set_min_objective(opt, nlopt_gfunction, &function_data);
par.rel_tol = 1e-4; parse_double("nlopt_rel_tol", &par.rel_tol);
nlopt_set_xtol_rel(opt, par.rel_tol);
/* Set the lower and upper bounds of the optimization
to a single constant lb or ub respectively */
par.lb = -2.0; parse_double("nlopt_lb", &par.lb);
par.ub = 2.0; parse_double("nlopt_ub", &par.ub);
nlopt_set_lower_bounds1(opt, par.lb);
nlopt_set_upper_bounds1(opt, par.ub);
function_data.counter = 0;
function_data.ndft = density_get_val(ndft);
messages_basic("\n\n\nStarting the optimization.\n\n\n");
if ((status = nlopt_optimize(opt, x, &minf)) < 0){
if (myid == 0) printf("nlopt failed! status = %d\n", status);
parallel_end(EXIT_FAILURE);
}
if(myid == 0) printf("Success. status = %d, iterations = %d, minf = %.12lg\n", status, function_data.counter, minf);
if(myid == 0) {for(i = 0; i < ipf.npar; i++) printf("%.5f ", x[i]);}
nlopt_destroy(opt);
for(i = 0; i < ipf.npar; i++) gsl_vector_set(ipf.gamma, i, x[i]);
ipf_write(ipf, ipf_ref, "pot");
parallel_end(EXIT_SUCCESS);
}