void AddNoise::init(SimFramework *_sim) {
VCSimulation *sim = static_cast<VCSimulation*>(_sim);
double stress_noise, stress_res_dist, cur_noise, old_stress_drop;
std::map<quakelib::Vec<3>, double> centers_noise;
quakelib::Vec<3> mid_pt;
std::map<quakelib::Vec<3>, double>::iterator cit;
BlockList::iterator it;
stress_noise = sim->getStressNoise();
stress_res_dist = sim->getStressNoiseResolution();
//! For each block in the simulation, get the midpoint and record the noise added to the block.
//! Each block within a specified radius of the selected block will have the same level of noise added.
//! The noise is defined as a modification of the stress drop from x to x +/- stress_noise.
for (it=sim->begin();it!=sim->end();++it) {
cur_noise = 1.0e10;
mid_pt = it->center();
for (cit=centers_noise.begin();cit!=centers_noise.end();++cit) {
if (mid_pt.dist(cit->first) <= stress_res_dist) {
cur_noise = cit->second;
break;
}
}
if (cur_noise > 1.0e9) {
cur_noise = (1.0-stress_noise) + 2*stress_noise*sim->randDouble();
centers_noise.insert(std::make_pair(mid_pt, cur_noise));
}
old_stress_drop = it->getStressDrop();
it->setStressDrop(old_stress_drop*cur_noise);
}
}
void GreensFuncCalcBarnesHut::CalculateGreens(Simulation *sim) {
BlockList::iterator bit;
quakelib::Octree<3> *tree;
quakelib::RectBound<3> total_bound;
unsigned int n;
int t_num;
// Get a list of 3D midpoints of all segments
for (bit=sim->begin(); bit!=sim->end(); ++bit) {
total_bound.extend_bound(bit->center());
}
// Set up an octree of the model space
tree = new quakelib::Octree<3>(total_bound);
// Fill the octree with center points of the faults
for (bit=sim->begin(); bit!=sim->end(); ++bit) {
tree->add_point(bit->center(), bit->getBlockID());
}
// Get the current thread # for OpenMP to avoid printing multiple progress bars.
#ifdef _OPENMP
t_num = omp_get_thread_num();
#else
t_num = 0;
#endif
// TO FIX: Problem with shared global variables (run_bounds)
//#pragma omp parallel for shared(last_update) schedule(static,1)
for (n=0; n<sim->numLocalBlocks(); ++n) {
progressBar(sim, t_num, n);
bhInnerCalc(sim, tree, sim->getGlobalBID(n));
}
// TODO: symmetrize Greens matrix
}