ENERGY_TYPE ICMGraph::optimize(int num_iterations) {
for (int i = 0; i < num_iterations; ++i) {
for (std::size_t j = 0; j < sites.size(); ++j) {
Site * site = &sites[j];
/* Current cost */
ENERGY_TYPE min_cost = std::numeric_limits<ENERGY_TYPE>::max(); //site->data_cost + smooth_cost(j, site->label);
for (std::size_t k = 0; k < site->labels.size(); ++k) {
ENERGY_TYPE cost = site->data_costs[k] + smooth_cost(j, site->labels[k]);
if (cost < min_cost) {
min_cost = cost;
site->data_cost = site->data_costs[k];
site->label = site->labels[k];
}
}
}
}
return compute_energy();
}
GCoptimization::EnergyType GCoptimization::expansion(int max_num_iterations )
{
int curr_cycle = 1;
EnergyType new_energy,old_energy;
new_energy = compute_energy();
old_energy = new_energy+1;
while ( old_energy > new_energy && curr_cycle <= max_num_iterations)
{
old_energy = new_energy;
new_energy = oneExpansionIteration();
curr_cycle++;
}
return(new_energy);
}
static void detector_process(MSFilter *f){
DetectorState *s=(DetectorState *)f->data;
mblk_t *m;
while ((m=ms_queue_get(f->inputs[0]))!=NULL){
ms_queue_put(f->outputs[0],m);
if (s->nscans>0){
ms_bufferizer_put(s->buf,dupmsg(m));
}
}
if (s->nscans>0){
uint8_t *buf=alloca(s->framesize);
while(ms_bufferizer_read(s->buf,buf,s->framesize)!=0){
float en=compute_energy((int16_t*)buf,s->framesize/2);
if (en>energy_min_threshold*(32767.0*32767.0*0.7)){
int i;
for(i=0;i<s->nscans;++i){
GoertzelState *gs=&s->tone_gs[i];
MSToneDetectorDef *tone_def=&s->tone_def[i];
float freq_en=goertzel_state_run(gs,(int16_t*)buf,s->framesize/2,en);
if (freq_en>=tone_def->min_amplitude){
if (gs->dur==0) gs->starttime=f->ticker->time;
gs->dur+=s->frame_ms;
if (gs->dur>=tone_def->min_duration && !gs->event_sent){
MSToneDetectorEvent event;
strncpy(event.tone_name,tone_def->tone_name,sizeof(event.tone_name));
event.tone_start_time=gs->starttime;
ms_filter_notify(f,MS_TONE_DETECTOR_EVENT,&event);
gs->event_sent=TRUE;
}
}else{
gs->event_sent=FALSE;
gs->dur=0;
gs->starttime=0;
}
}
}else end_all_tones(s);
}
}
}
MC::MC(std::shared_ptr<pele::BasePotential> potential, Array<double>& coords, const double temperature)
: m_potential(potential),
m_coords(coords.copy()),
m_trial_coords(m_coords.copy()),
m_take_step(NULL),
m_nitercount(0),
m_accept_count(0),
m_E_reject_count(0),
m_conf_reject_count(0),
m_success(true),
m_print_progress(false),
m_niter(0),
m_neval(0),
m_temperature(temperature),
m_report_steps(0),
m_enable_input_warnings(true)
{
m_energy = compute_energy(m_coords);
m_trial_energy = m_energy;
/*std::cout<<"mcrunner Energy is "<<_energy<< "\n";
std::cout<<"mcrunner potential ptr is "<<_potential<< "\n";*/
}
/// main for SCF
int main (int argc, char **argv)
{
// init MPI
int myrank;
int nprocs;
int provided;
#if defined (USE_ELEMENTAL)
ElInitialize( &argc, &argv );
ElMPICommRank( MPI_COMM_WORLD, &myrank );
ElMPICommSize( MPI_COMM_WORLD, &nprocs );
MPI_Query_thread(&provided);
#else
MPI_Init_thread(&argc, &argv, MPI_THREAD_MULTIPLE, &provided);
MPI_Comm_rank(MPI_COMM_WORLD, &myrank);
MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
#endif
if (myrank == 0) {
printf("MPI thread support: %s\n", MPI_THREAD_STRING(provided));
}
#if 0
char hostname[1024];
gethostname (hostname, 1024);
printf ("Rank %d of %d running on node %s\n", myrank, nprocs, hostname);
#endif
// create basis set
BasisSet_t basis;
CInt_createBasisSet(&basis);
// input parameters and load basis set
int nprow_fock;
int npcol_fock;
int nblks_fock;
int nprow_purif;
int nshells;
int natoms;
int nfunctions;
int niters;
if (myrank == 0) {
if (argc != 8) {
usage(argv[0]);
MPI_Finalize();
exit(0);
}
// init parameters
nprow_fock = atoi(argv[3]);
npcol_fock = atoi(argv[4]);
nprow_purif = atoi(argv[5]);
nblks_fock = atoi(argv[6]);
niters = atoi(argv[7]);
assert(nprow_fock * npcol_fock == nprocs);
assert(nprow_purif * nprow_purif * nprow_purif <= nprocs);
assert(niters > 0);
CInt_loadBasisSet(basis, argv[1], argv[2]);
nshells = CInt_getNumShells(basis);
natoms = CInt_getNumAtoms(basis);
nfunctions = CInt_getNumFuncs(basis);
assert(nprow_fock <= nshells && npcol_fock <= nshells);
assert(nprow_purif <= nfunctions && nprow_purif <= nfunctions);
printf("Job information:\n");
char *fname;
fname = basename(argv[2]);
printf(" molecule: %s\n", fname);
fname = basename(argv[1]);
printf(" basisset: %s\n", fname);
printf(" charge = %d\n", CInt_getTotalCharge(basis));
printf(" #atoms = %d\n", natoms);
printf(" #shells = %d\n", nshells);
printf(" #functions = %d\n", nfunctions);
printf(" fock build uses %d (%dx%d) nodes\n",
nprow_fock * npcol_fock, nprow_fock, npcol_fock);
printf(" purification uses %d (%dx%dx%d) nodes\n",
nprow_purif * nprow_purif * nprow_purif,
nprow_purif, nprow_purif, nprow_purif);
printf(" #tasks = %d (%dx%d)\n",
nblks_fock * nblks_fock * nprow_fock * nprow_fock,
nblks_fock * nprow_fock, nblks_fock * nprow_fock);
int nthreads = omp_get_max_threads();
printf(" #nthreads_cpu = %d\n", nthreads);
}
int btmp[8];
btmp[0] = nprow_fock;
btmp[1] = npcol_fock;
btmp[2] = nprow_purif;
btmp[3] = nblks_fock;
btmp[4] = niters;
btmp[5] = natoms;
btmp[6] = nshells;
btmp[7] = nfunctions;
MPI_Bcast(btmp, 8, MPI_INT, 0, MPI_COMM_WORLD);
nprow_fock = btmp[0];
npcol_fock = btmp[1];
nprow_purif = btmp[2];
nblks_fock = btmp[3];
niters = btmp[4];
natoms = btmp[5];
nshells = btmp[6];
nfunctions = btmp[7];
// broadcast basis set
void *bsbuf;
int bsbufsize;
if (myrank == 0) {
CInt_packBasisSet(basis, &bsbuf, &bsbufsize);
MPI_Bcast(&bsbufsize, 1, MPI_INT, 0, MPI_COMM_WORLD);
MPI_Bcast(bsbuf, bsbufsize, MPI_CHAR, 0, MPI_COMM_WORLD);
}
else {
MPI_Bcast(&bsbufsize, 1, MPI_INT, 0, MPI_COMM_WORLD);
bsbuf = (void *)malloc(bsbufsize);
assert(bsbuf != NULL);
MPI_Bcast(bsbuf, bsbufsize, MPI_CHAR, 0, MPI_COMM_WORLD);
CInt_unpackBasisSet(basis, bsbuf);
free(bsbuf);
}
// init PFock
if (myrank == 0) {
printf("Initializing pfock ...\n");
}
PFock_t pfock;
PFock_create(basis, nprow_fock, npcol_fock, nblks_fock, 1e-11,
MAX_NUM_D, IS_SYMM, &pfock);
if (myrank == 0) {
double mem_cpu;
PFock_getMemorySize(pfock, &mem_cpu);
printf(" CPU uses %.3f MB\n", mem_cpu / 1024.0 / 1024.0);
printf(" Done\n");
}
// init purif
purif_t *purif = create_purif(basis, nprow_purif, nprow_purif, nprow_purif);
init_oedmat(basis, pfock, purif, nprow_fock, npcol_fock);
// compute SCF
if (myrank == 0) {
printf("Computing SCF ...\n");
}
int rowstart = purif->srow_purif;
int rowend = purif->nrows_purif + rowstart - 1;
int colstart = purif->scol_purif;
int colend = purif->ncols_purif + colstart - 1;
double energy0 = -1.0;
double totaltime = 0.0;
double purif_flops = 2.0 * nfunctions * nfunctions * nfunctions;
double diis_flops;
// set initial guess
if (myrank == 0) {
printf(" initialing D ...\n");
}
PFock_setNumDenMat(NUM_D, pfock);
initial_guess(pfock, basis, purif->runpurif,
rowstart, rowend, colstart, colend,
purif->D_block, purif->ldx);
MPI_Barrier(MPI_COMM_WORLD);
// compute nuc energy
double ene_nuc = CInt_getNucEnergy(basis);
if (myrank == 0) {
printf(" nuc energy = %.10f\n", ene_nuc);
}
MPI_Barrier(MPI_COMM_WORLD);
// main loop
double t1, t2, t3, t4;
for (int iter = 0; iter < niters; iter++) {
if (myrank == 0) {
printf(" iter %d\n", iter);
}
t3 = MPI_Wtime();
// fock matrix construction
t1 = MPI_Wtime();
fock_build(pfock, basis, purif->runpurif,
rowstart, rowend, colstart, colend,
purif->ldx, purif->D_block, purif->F_block);
if (myrank == 0) {
printf("After fock build \n");
}
// compute energy
double energy = compute_energy(purif, purif->F_block, purif->D_block);
t2 = MPI_Wtime();
if (myrank == 0) {
printf(" fock build takes %.3f secs\n", t2 - t1);
if (iter > 0) {
printf(" energy %.10f (%.10f), %le\n",
energy + ene_nuc, energy, fabs (energy - energy0));
}
else {
printf(" energy %.10f (%.10f)\n", energy + ene_nuc,
energy);
}
}
if (iter > 0 && fabs (energy - energy0) < 1e-11) {
niters = iter + 1;
break;
}
energy0 = energy;
// compute DIIS
t1 = MPI_Wtime();
compute_diis(pfock, purif, purif->D_block, purif->F_block, iter);
t2 = MPI_Wtime();
if (myrank == 0) {
if (iter > 1) {
diis_flops = purif_flops * 6.0;
} else {
diis_flops = purif_flops * 2.0;
}
printf(" diis takes %.3f secs, %.3lf Gflops\n",
t2 - t1, diis_flops / (t2 - t1) / 1e9);
}
#ifdef __SCF_OUT__
if (myrank == 0) {
double outbuf[nfunctions];
char fname[1024];
sprintf(fname, "XFX_%d_%d.dat", nfunctions, iter);
FILE *fp = fopen(fname, "w+");
assert(fp != NULL);
for (int i = 0; i < nfunctions; i++) {
PFock_getMat(pfock, PFOCK_MAT_TYPE_F, USE_D_ID,
i, i, USE_D_ID, nfunctions - 1,
outbuf, nfunctions);
for (int j = 0; j < nfunctions; j++) {
fprintf(fp, "%.10e\n", outbuf[j]);
}
}
fclose(fp);
}
#endif
// purification
MPI_Barrier(MPI_COMM_WORLD);
t1 = MPI_Wtime();
int it = compute_purification(purif, purif->F_block, purif->D_block);
t2 = MPI_Wtime();
MPI_Barrier(MPI_COMM_WORLD);
if (myrank == 0) {
printf(" purification takes %.3f secs,"
" %d iterations, %.3f Gflops\n",
t2 - t1, it,
(it * 2.0 + 4.0) * purif_flops / (t2 - t1) / 1e9);
}
/*
#if defined(USE_ELEMENTAL)
ElGlobalArraysPrint_d( eldga, pfock->ga_D[USE_D_ID] );
#else
GA_Print (pfock->ga_D[USE_D_ID]);
#endif
*/
t4 = MPI_Wtime ();
totaltime += t4 - t3;
#ifdef __SCF_TIMING__
PFock_getStatistics(pfock);
double purif_timedgemm;
double purif_timepdgemm;
double purif_timepass;
double purif_timetr;
MPI_Reduce(&purif->timedgemm, &purif_timedgemm,
1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD);
MPI_Reduce(&purif->timepdgemm, &purif_timepdgemm,
1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD);
MPI_Reduce(&purif->timepass, &purif_timepass,
1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD);
MPI_Reduce(&purif->timetr, &purif_timetr,
1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD);
if (myrank == 0) {
printf(" Purification Statistics:\n");
printf(" average totaltime = %.3f\n"
" average timetr = %.3f\n"
" average timedgemm = %.3f, %.3f Gflops\n"
" average timepdgemm = %.3f, %.3f Gflops\n",
purif_timepass / purif->np_purif,
purif_timetr / purif->np_purif,
purif_timedgemm / purif->np_purif,
(it * 2.0 + 4.0) *
purif_flops / (purif_timedgemm / purif->np_purif) / 1e9,
purif_timepdgemm / purif->np_purif,
(it * 2.0 + 4.0) *
purif_flops / (purif_timepdgemm / purif->np_purif) / 1e9);
}
#endif
} /* for (iter = 0; iter < NITERATIONS; iter++) */
if (myrank == 0) {
printf(" totally takes %.3f secs: %.3f secs/iters\n",
totaltime, totaltime / niters);
printf(" Done\n");
}
destroy_purif(purif);
PFock_destroy(pfock);
CInt_destroyBasisSet(basis);
MPI_Finalize();
return 0;
}
void mmas::mixing_product(int n) {
delete mixed_product;
mixed_product = new usm;
real dm_bin = product->star_mass / n;
real m_prev = 0, m_bin = 0;
real Mtot = 0, Utot = 0, Vtot = 0, r_mean = 0;
int n_in_bin = 0;
int j = 0;
real H1tot = 0, He4tot = 0, O16tot = 0, N14tot = 0, C12tot = 0, Ne20tot = 0, Mg24tot = 0, Si28tot = 0, Fe56tot = 0;
for (int i = 0; i < product->get_num_shells(); i++) {
mass_shell &shell_i = product->get_shell(i);
real dm = shell_i.mass - m_prev;
m_prev = shell_i.mass;
r_mean += shell_i.radius;
n_in_bin += 1;
m_bin += dm;
Mtot += dm;
Vtot += dm/shell_i.density;
H1tot += dm*shell_i.composition.H1;
He4tot += dm*shell_i.composition.He4;
O16tot += dm*shell_i.composition.O16;
N14tot += dm*shell_i.composition.N14;
C12tot += dm*shell_i.composition.C12;
Ne20tot += dm*shell_i.composition.Ne20;
Mg24tot += dm*shell_i.composition.Mg24;
Si28tot += dm*shell_i.composition.Si28;
Fe56tot += dm*shell_i.composition.Fe56;
Utot += compute_energy(shell_i.density, shell_i.temperature, shell_i.mean_mu) * dm;
if (m_bin > dm_bin) {
// PRC(j); PRC(n); PRC(Mtot); PRC(m_bin); PRC(dm_bin); PRL(n_in_bin);
mass_shell shell_j; j++;
// mass_shell &shell_j = mixed_product->get_shell(j++);
shell_j.radius = r_mean/n_in_bin;
shell_j.mass = Mtot;
shell_j.density = m_bin/Vtot;
shell_j.composition.H1 = H1tot/m_bin;
shell_j.composition.He4 = He4tot/m_bin;
shell_j.composition.O16 = O16tot/m_bin;
shell_j.composition.N14 = N14tot/m_bin;
shell_j.composition.C12 = C12tot/m_bin;
shell_j.composition.Ne20 = Ne20tot/m_bin;
shell_j.composition.Mg24 = Mg24tot/m_bin;
shell_j.composition.Si28 = Si28tot/m_bin;
shell_j.composition.Fe56 = Fe56tot/m_bin;
#define am(x) (1.0+Amass[x]/2.0)/Amass[x]
real Amass[] = {1, 4, 16, 14, 12, 20, 24, 28, 56};
shell_j.mean_mu = 2 * shell_j.composition.H1 +
am(1) * shell_j.composition.He4 +
am(2) * shell_j.composition.O16 +
am(3) * shell_j.composition.N14 +
am(4) * shell_j.composition.C12 +
am(5) * shell_j.composition.Ne20 +
am(6) * shell_j.composition.Mg24 +
am(7) * shell_j.composition.Si28 +
am(8) * shell_j.composition.Fe56;
shell_j.mean_mu = 1.0/shell_j.mean_mu;
shell_j.e_thermal = Utot/m_bin;
shell_j.pressure = compute_pressure(shell_j.density, shell_j.e_thermal, shell_j.mean_mu);
shell_j.temperature = compute_temperature(shell_j.density, shell_j.pressure, shell_j.mean_mu);
shell_j.entropy = compute_entropy(shell_j.density, shell_j.temperature, shell_j.mean_mu);
mixed_product->add_shell(shell_j);
m_bin -= dm_bin;
m_bin = Utot = Vtot = r_mean = 0;
H1tot = He4tot = O16tot = N14tot = C12tot = Ne20tot = Mg24tot = Si28tot = Fe56tot = 0;
n_in_bin = 0;
}
}
mixed_product->build_hashtable();
}
void mmas::smooth_product() {
int n_shells = product->get_num_shells(); /* number of shells in the product */
smoothing_params params;
params.arr_x = new double[n_shells];
params.arr_y = new double[n_shells];
params.smoothed_y = new double[n_shells];
/* composition */
cerr << "Smoothing composition\n";
for (int i = 0; i < n_shells; i++) {
mass_shell &shell = product->get_shell(i);
params.arr_x[i] = shell.radius;
params.arr_x[i] = shell.mass;
params.arr_y[i] = (4.0/shell.mean_mu - 3.0)/5.0;
}
smoothing_integrate(params, n_shells);
for (int i = 0; i < n_shells; i++) {
mass_shell &shell = product->get_shell(i);
shell.mean_mu = 4.0/(5.0*params.smoothed_y[i] + 3);
}
/* thermal energy */
cerr << "Smoothing thermal energy\n";
for (int i = 0; i < n_shells; i++) {
mass_shell &shell = product->get_shell(i);
params.arr_y[i] = compute_energy(shell.density, shell.temperature, shell.mean_mu);
}
smoothing_integrate(params, n_shells);
for (int i = 0; i < n_shells; i++) {
mass_shell &shell = product->get_shell(i);
shell.e_thermal = params.smoothed_y[i];
// real x = params.arr_x[i];
// real y = params.arr_y[i];
// real ys = params.smoothed_y[i];
// PRC(x); PRC(y); PRL(ys);
}
/* density */
// cerr << "Smoothing density\n";
// for (int i = 0; i < n_shells; i++) {
// mass_shell &shell = product->get_shell(i);
// params.arr_y[i] = shell.density;
// }
// smoothing_integrate(params, n_shells);
// for (int i = 0; i < n_shells; i++) {
// mass_shell &shell = product->get_shell(i);
// shell.density = params.smoothed_y[i];
// }
for (int i = 0; i < n_shells; i++) {
mass_shell &shell = product->get_shell(i);
shell.pressure = compute_pressure(shell.density, shell.e_thermal, shell.mean_mu);
shell.temperature = compute_temperature(shell.density, shell.pressure, shell.mean_mu);
shell.entropy = compute_entropy(shell.density, shell.temperature, shell.mean_mu);
}
delete[] params.arr_x;
delete[] params.arr_y;
delete[] params.smoothed_y;
}
/* 第1層になんらかの入力パターンを入力してから，
この関数を呼び出す．
引数は，学習，反学習のフラグ． 1 or -1
この関数の仕事：
1. 入力をもとに，16通りの出力パターン，それぞれの
出現確率 q[i] を計算．
2. q[i] をもとに，層間の結合係数を学習もしくは反学習
以上．
*/
void learning_forward(int hebb){
int i, j, k, l;
int start,end;
int argmin;
double e;
double min;
double sum;
/* 出力層に出現するのは，隣あう PARAMETER_k 個が発火する N_OUTPUTS 個パターンのみと仮定．*/
/* 出力パターン：その1 */
for (j = N_INPUTS+1; j <= N_INPUTS+PARAMETER_k ; j++){
X[j]=1.0;
}
for (j = N_INPUTS+PARAMETER_k+1; j <= N_NEURONS; j++){
X[j]=0.0;
}
argmin = N_INPUTS+1;
min = compute_energy();
q[N_INPUTS+1] = min;
/* 出力パターン：その2以降 */
for (j = N_INPUTS+2; j <= N_NEURONS; j++) {
for (k = N_INPUTS+1; k <= N_NEURONS; k++){
X[k]=0.0;
}
for (k = j; k < j+PARAMETER_k; k++){
if ( k <= N_NEURONS ){
X[k]=1.0;
}
else{
X[N_INPUTS + (k % N_NEURONS) ]=1.0;
}
}
e = compute_energy();
q[j] = e;
if ( e < min ){
min = e;
argmin = j;
}
}
for (j = N_INPUTS+1; j <= N_NEURONS; j++){
q[j] = exp(-q[j]);
}
sum = 0.0;
for (j = N_INPUTS+1; j <= N_NEURONS; j++){
sum += q[j];
}
// printf("sum=%.2lf\n",sum);
for (j = N_INPUTS+1; j <= N_NEURONS; j++){
q[j] = q[j]/sum;
// printf("%.2lf ",q[j]);
}
// printf("\n");
/* 学習 */
for (j = N_INPUTS+1; j <= N_NEURONS; j++) {
/* 出力層にパターンをひとつづつあてはめてみる */
for (k = N_INPUTS+1; k <= N_NEURONS; k++){
X[k]=0.0;
}
for (k = j; k < j+PARAMETER_k; k++){
if ( k <= N_NEURONS ){
X[k]=1.0;
}
else{
X[N_INPUTS + (k % N_NEURONS) ]=1.0;
}
}
/* k番目の素子（入力層）と l番目の素子の学習 */
for (k=1; k<=N_INPUTS; k++) {
for (l=N_INPUTS+1; l<=N_NEURONS; l++) {
if ( X[k] > 0.5 && X[l] > 0.5 ){
if ( hebb == 1 ){
W[k][l] += ALPHA*q[j];
}
else{
W[k][l] -= ALPHA*q[j];
}
W[l][k] = W[k][l];
}
}
}
} /* end of for j */
/*
sum = 0.0;
for (k=1; k<=N_INPUTS; k++) {
for (l=N_INPUTS+1; l<=N_NEURONS; l++) {
sum += W[k][l]*W[k][l];
}
}
for (k=1; k<=N_INPUTS; k++) {
for (l=N_INPUTS+1; l<=N_NEURONS; l++) {
W[k][l] = W[k][l]/sqrt(sum);
W[l][k] = W[k][l];
}
}
*/
for (j = N_INPUTS+2; j <= N_NEURONS; j++){
q[j] = q[j] + q[j-1];
printf("%.2lf ",q[j]);
}
printf("\n");
}
void ImplicitSampler::sample(Vector3* points, int* tris) {
UniformGrid* uniform_grid = new UniformGrid(grid_res_x, grid_res_y, grid_res_z, ll_bound, ur_bound);
int iteration = 0;
bool sampling_satisfied = iteration == num_iterations;
double start_radius = global_radius, end_radius = 2.0*global_radius;
double prior_energy = 0;
while(!sampling_satisfied) {
// populate grid with new points
for(int s = 0; s < num_points; s++) {
if(iteration > 0)
break;
uniform_grid->add_point(sampled_pts[s]);
}
int periodicity = num_points/10;
vector<GridPoint> new_samples;
ComputationTimer timer("relaxation");
timer.start();
double total_energy = 0;
// and perform repulsion
for(int s = 0; s < num_points; s++) {
if((s % periodicity) == 0)
cout << "point["<<s<<"]" << endl;
GridPoint sampler_pt = sampled_pts[s];
Vector3 pt = sampler_pt.pt;
// gather neighborhood
vector<GridPoint> neighborhood;
this->gather_neighborhood(sampler_pt, uniform_grid, &neighborhood);
if(neighborhood.size() == 1)
continue;
// compute energy & repulsed point
total_energy += compute_energy(sampler_pt, &neighborhood);
Vector3 force_vector = construct_force(sampler_pt, &neighborhood);
Vector3 repulsed_pt = pt + force_vector;
// project point onto nearest triangle
GridPoint new_pt = this->projection(repulsed_pt, sampler_pt);
// assign new point, and update grid
new_samples.push_back(new_pt);
}
for(unsigned s = 0; s < new_samples.size(); s++)
update_samples(new_samples[s], uniform_grid);
timer.end();
cout << timer.getComputation() << " : " << timer.getElapsedTime() << "s energy: " << total_energy << endl;
bool energy_achieved = false;
if(iteration > 0) {
double energy_fraction = (prior_energy-total_energy)/total_energy;
energy_achieved = iteration >= (min_iterations-1) && energy_fraction < 0.1;
}
iteration++;
sampling_satisfied = energy_achieved || (iteration == num_iterations);
prior_energy = total_energy;
}
delete uniform_grid;
for(int s = 0; s < num_points; s++)
points[s] = sampled_pts[s].pt;
}
int main(int argc, char ** argv){
int *lattice;
int neigh[4];
int n_side;
int i_flip=0;
int i,j;
double r;
double delta_E;
double T = atof(argv[2]);
double beta = 1.0/T;
double E;
double M;
double alpha;
double h;
int n_steps;
double average_m = 0.0;
double average_E = 0.0;
double average_E2 = 0.0;
n_side = atoi(argv[1]);
lattice = init_lattice(n_side);
E = compute_energy(lattice, n_side);
M = compute_magnetiza(lattice, n_side);
/*printf("%f %f\n", E, M);*/
n_steps = n_side * n_side * 10;
for(i=0;i<n_steps;i++){
i_flip = random_between(0,n_side*n_side-1);
get_neighbors(lattice, n_side, i_flip, neigh);
h = 0.0;
for(j=0;j<4;j++){
h += lattice[neigh[j]];
}
delta_E = 2.0 * h * lattice[i_flip];
r = MIN(1.0, exp(-beta * delta_E));
alpha = drand48();
if(alpha < r){
lattice[i_flip] = -lattice[i_flip];
E = E + delta_E;
}
M = compute_magnetiza(lattice, n_side);
/*printf("%f %f\n", E, M);*/
if(i>30000){
average_m += fabs(M)/(n_side*n_side);
average_E += E;
average_E2 += E*E;
}
}
average_m = average_m/(n_steps-30000);
average_E = average_E/(n_steps-30000);
average_E2 = average_E2/(n_steps-30000);
double varE = average_E2 - average_E*average_E;
printf("%f %f %f\n", T, average_m, varE);
return 0;
}
void SimpleSkeletonGrower::grow_exhaustive(int no_branch)
{
std::vector <LibraryElement> elements = _library._library_element;
for(int i=0; i<no_branch; i++)
{
//pick a tail first
BDLSkeletonNode *tail = pick_branch();
if(!tail)
{
printf("SimpleSkeletonGrower::grow():converged at %d-th step.\n", i+1);
break;
}
//compute the node-->id dict
std::map <BDLSkeletonNode *, int> dict;
int id = 0;
//bfs on source
std::queue <BDLSkeletonNode *> Queue;
Queue.push(_root);
while(!Queue.empty())
{
BDLSkeletonNode *front = Queue.front();
Queue.pop();
dict[front] = id;
for(unsigned int j=0; j<front->_children.size(); j++)
Queue.push(front->_children[j]);
id++;
}
int tail_id = dict[tail];
//####trial starts####
int min_element_index = -1;
int min_rotate = -1;
float min_energy = -1.0f;
for(unsigned int e=0; e<elements.size(); e++)
for(int r=0; r<360; r+=30)
{
LibraryElement element_trial = elements[e];
//copy the original(_root) tree and find the corresponding tail
BDLSkeletonNode *copy_root = BDLSkeletonNode::copy_tree(_root);
BDLSkeletonNode *copy_tail = NULL;
//bfs on target, Queue is now empty at this point
id = 0;
Queue.push(copy_root);
while(!Queue.empty())
{
BDLSkeletonNode *front = Queue.front();
Queue.pop();
if(id == tail_id)
copy_tail = front;
for(unsigned int j=0; j<front->_children.size(); j++)
Queue.push(front->_children[j]);
id++;
}
//branch replacement
std::vector <BDLSkeletonNode *> subtree_trial = replace_branch(copy_tail, element_trial, r);
prune(subtree_trial);
//find energy
float energy = compute_energy(copy_root);
if(energy >= 0.0f && (min_energy == -1.0f || energy < min_energy))
{
min_element_index = e;
min_rotate = r;
min_energy = energy;
}
//delete the copied tree
BDLSkeletonNode::delete_this(copy_root);
}
//####trial ends####
//actual replacement
if(min_energy != -1.0f)
{
std::vector <BDLSkeletonNode *> subtree = replace_branch(tail, elements[min_element_index], min_rotate);
prune(subtree);
}
}
}
void viscosity(void) {
int i,j,k;
i=j=k=0;
double visc, viscm,div_v;
double res,fac,facp;
double res2,fac2;
double res3,fac3;
double resd,facd;
double res4;
visc = 0;
viscm = 0;
compute_energy();
#ifdef _OPENMP
#pragma omp parallel
{
#pragma omp for collapse(3) private(i,j,k,visc,viscm,div_v)
#endif
for(k=0;k<size_z;k++) {
for(j=1;j<size_y-1;j++) {
for(i=0;i<size_x;i++) {
visc = params.alpha*energy[l]*energy[l]*sqrt(ymed(j)*ymed(j)*ymed(j));
viscm = params.alpha*.5*(energy[l]*energy[l]+energy[lym]*energy[lym])*sqrt(ymin(j)*ymin(j)*ymin(j));
div_v = 0.0;
div_v += (vx[lxp]-vx[l])*SurfX(j,k);
div_v += (vy[lyp]*SurfY(j+1,k)-vy[l]*SurfY(j,k));
div_v *= 2.0/3.0*InvVol(j,k);
tauxx[l] = visc*dens[l]*(2.0*(vx[lxp]-vx[l])/zone_size_x(j,k) - div_v);
tauxx[l] += visc*dens[l]*(vy[lyp]+vy[l])/ymed(j);
tauyy[l] = visc*dens[l]*(2.0*(vy[lyp]-vy[l])/(ymin(j+1)-ymin(j)) - div_v);
tauxy[l] = viscm*.25*(dens[l]+dens[lxm]+dens[lym]+dens[lxm-pitch])*((vy[l]-vy[lxm])/(dx*ymin(j)) + (vx[l]-vx[lym])/(ymed(j)-ymed(j-1))-.5*(vx[l]+vx[lym])/ymin(j)); //centered on left, inner vertical edge in z
}
}
}
i = j = k = 0;
#ifdef _OPENMP
#pragma omp for private(j,viscm)
#endif
for(j=1;j<size_y-1;j++) {
viscm = params.alpha*.5*(energy[l]*energy[l]+energy[lym]*energy[lym])*sqrt(ymin(j)*ymin(j)*ymin(j));
tauxyavg[j] = viscm*.5*(dbar[j]+dbar[j-1])*( (vxbar[j]-vxbar[j-1])/(ymed(j)-ymed(j-1))-.5*(vxbar[j]+vxbar[j-1])/ymin(j));
}
#ifdef _OPENMP
#pragma omp barrier
#pragma omp for collapse(2) private(i,j,k,res,fac,facp,resd,res2,res3,fac2,fac3,facd,res4)
#endif
for(k=0;k<size_z;k++) {
for(j=1;j<size_y-2;j++) {
res = 0;
resd = 0;
res3 = 0;
res2 = 0;
res4 = 0;
for(i=0;i<size_x;i++) {
// X
resd += dens[l];
fac3 = 2.0*(tauxx[l]-tauxx[lxm])/(zone_size_x(j,k)*(dens[l]+dens[lxm]));
res3 += fac3;
vx_temp[l] += fac3*dt;
fac = (ymin(j+1)*ymin(j+1)*tauxy[lyp]-ymin(j)*ymin(j)*tauxy[l])/((ymin(j+1)-ymin(j))*ymed(j));
//facp = (ymin(j+1)*ymin(j+1)*tauxy[lxp+pitch]-ymin(j)*ymin(j)*tauxy[lxp])/((ymin(j+1)-ymin(j))*ymed(j));
fac2 = fac*2.0/(ymed(j)*(dens[l]+dens[lxm]));
//res2 += .5*fac2 + .5*facp*2.0/(ymed(j)*(dens[lxp]+dens[l]));
res2 += fac2;
vx_temp[l] += fac2*dt;
res += fac;
//res4 += fac;
// Y
vy_temp[l] += 2.0*(ymed(j)*tauyy[l]-ymed(j-1)*tauyy[lym])/((ymed(j)-ymed(j-1))*(dens[l]+dens[lym])*ymin(j))*dt;
vy_temp[l] += 2.0*(tauxy[lxp]-tauxy[l])/(dx*ymin(j)*(dens[l]+dens[lym]))*dt;
vy_temp[l] -= (tauxx[l]+tauxx[lym])/(ymin(j)*(dens[l]+dens[lym]))*dt;
//res += .5*(fac+facp);
}
res2 /= (double)nx;
res3 /= (double)nx;
resd /= (double)nx;
res /= (double)nx;
res4 /= (double)nx;
LamdepS[j + size_y*3] += dt*res3*ymed(j)*resd;
LamdepS[j + size_y*2] += dt*res2*ymed(j)*resd;
drFt[j] += -dt*res;
dtLd_rhs[j] += res*ymed(j);
//drFd[j] = -(ymin(j+1)*ymin(j+1)*tauxyavg[j+1]*SurfY(j+1,k) - ymin(j)*ymin(j)*tauxyavg[j]*SurfY(j,k))*InvVol(j,k);
facd = -dt*(ymin(j+1)*ymin(j+1)*tauxyavg[j+1]-ymin(j)*ymin(j)*tauxyavg[j])/((ymin(j+1)-ymin(j))*ymed(j));
LamdepS[j + size_y*5] += facd; //-dt*res;
drFd[j] += facd; //-dt*res;
drFnu[j] += facd;
drFdB[j] += facd; //-dt*res;
}
}
#ifdef _OPENMP
}
#endif
return;
}