void SnowModel::generateLaunchSites() {
std::cout << "[Snow Model] generating launch sites" << std::endl << "\t*Progress: ";
std::flush(std::cout);
int percent_step = static_cast<int>(edge_groups.size() * 0.1f);
int step = 10;
if (percent_step < 1)
{
step = static_cast<int>(100.0f / edge_groups.size());
percent_step = 1;
}
unsigned int percent_count = 0;
int percent = 0;
unsigned int eg_count = 0;
::Utilities::Timer t;
t.start();
// create new launch site information
EdgeGroup::LaunchSiteInfo ls_info;
ls_info.flake_flutter = flake_schema->getFlakeFlutter();
ls_info.launchsite_multiplicator = launchsite_resolution;
ls_info.max_launchsites_per_face = max_launchsites_per_face;
unsigned int ls_count = 0;
//#pragma omp for schedule(dynamic,10)
#pragma omp parallel for
for (int i=0; i < edge_groups.size(); ++i)
{
if (eg_count > percent_count)
{
#pragma omp critical(eg_count_ls_creation)
{
// to make sure that an parallel thread does not
// does the increment, too - we check again.
if ( eg_count > percent_count ) {
std::cout << " " << percent;
std::flush(std::cout);
percent_count += percent_step;
percent += step;
}
}
}
#pragma omp atomic
++eg_count;
try {
ls_count += edge_groups[i]->generateLaunchSites(ls_info);
} catch (std::logic_error& ex) {
std::cerr << std::endl << "\t[Error] An error occurred while launch site creation on edge group #" << eg_count << ":" << std::endl
<< "\t" << ex.what() << std::endl << "\t->Ignoring edge group" << std::endl;
}
}
// OpenMP does not work with iterators, so the above replaces the following:
//for (eg_it it = edge_groups.begin(); it != edge_groups.end(); ++it) {
// ls_count += (*it)->generateLaunchSites(ls_info);
//}
// update bounding box
checkBoundingBox();
t.stop();
std::cout << "...ready" << std::endl << "\t*Total launch sites: " << ls_count << std::endl
<< "\t*Time: " << t.diffTimeInMSec() << "msec" << std::endl;
}
int SimulationObject::initializeLbmSimulation(ntlRenderGlobals *glob)
{
if(! isSimworldOk() ) return 1;
// already inited?
if(mpLbm) return 0;
mpGlob = glob;
if(!getVisible()) {
mpAttrs->setAllUsed();
return 0;
}
mGeoInitId = mpAttrs->readInt("geoinitid", mGeoInitId,"LbmSolverInterface", "mGeoInitId", false);
//mDimension, mSolverType are deprecated
string mSolverType("");
mSolverType = mpAttrs->readString("solver", mSolverType, "SimulationObject","mSolverType", false );
mpLbm = createSolver();
/* check lbm pointer */
if(mpLbm == NULL) {
errFatal("SimulationObject::initializeLbmSimulation","Unable to init LBM solver! ", SIMWORLD_INITERROR);
return 2;
}
debMsgStd("SimulationObject::initialized",DM_MSG,"IdStr:"<<mpLbm->getIdString() <<" LBM solver! ", 2);
mpParts = new ParticleTracer();
// for non-param simulations
mpLbm->setParametrizer( mpParam );
mpParam->setAttrList( getAttributeList() );
// not needed.. done in solver_init: mpParam->setSize ... in solver_interface
mpParam->parseAttrList();
mpLbm->setAttrList( getAttributeList() );
mpLbm->setSwsAttrList( getSwsAttributeList() );
mpLbm->parseAttrList();
mpParts->parseAttrList( getAttributeList() );
if(! isSimworldOk() ) return 3;
mpParts->setName( getName() + "_part" );
mpParts->initialize( glob );
if(! isSimworldOk() ) return 4;
// init material settings
string matMc("default");
matMc = mpAttrs->readString("material_surf", matMc, "SimulationObject","matMc", false );
mShowSurface = mpAttrs->readInt("showsurface", mShowSurface, "SimulationObject","mShowSurface", false );
mShowParticles = mpAttrs->readInt("showparticles", mShowParticles, "SimulationObject","mShowParticles", false );
checkBoundingBox( mGeoStart, mGeoEnd, "SimulationObject::initializeSimulation" );
mpLbm->setLbmInitId( mGeoInitId );
mpLbm->setGeoStart( mGeoStart );
mpLbm->setGeoEnd( mGeoEnd );
mpLbm->setRenderGlobals( mpGlob );
mpLbm->setName( getName() + "_lbm" );
mpLbm->setParticleTracer( mpParts );
if(mpElbeemSettings) {
// set further settings from API struct init
if(mpElbeemSettings->outputPath) this->mOutFilename = string(mpElbeemSettings->outputPath);
mpLbm->initDomainTrafo( mpElbeemSettings->surfaceTrafo );
mpLbm->setSmoothing(1.0 * mpElbeemSettings->surfaceSmoothing, 1.0 * mpElbeemSettings->surfaceSmoothing);
mpLbm->setIsoSubdivs(mpElbeemSettings->surfaceSubdivs);
mpLbm->setSizeX(mpElbeemSettings->resolutionxyz);
mpLbm->setSizeY(mpElbeemSettings->resolutionxyz);
mpLbm->setSizeZ(mpElbeemSettings->resolutionxyz);
mpLbm->setPreviewSize(mpElbeemSettings->previewresxyz);
mpLbm->setRefinementDesired(mpElbeemSettings->maxRefine);
mpLbm->setGenerateParticles(mpElbeemSettings->generateParticles);
// set initial particles
mpParts->setNumInitialParticles(mpElbeemSettings->numTracerParticles);
// surface generation flag
mpLbm->setSurfGenSettings(mpElbeemSettings->mFsSurfGenSetting);
string dinitType = string("no");
if (mpElbeemSettings->domainobsType==FLUIDSIM_OBSTACLE_PARTSLIP) dinitType = string("part");
else if(mpElbeemSettings->domainobsType==FLUIDSIM_OBSTACLE_FREESLIP) dinitType = string("free");
else /*if(mpElbeemSettings->domainobsType==FLUIDSIM_OBSTACLE_NOSLIP)*/ dinitType = string("no");
mpLbm->setDomainBound(dinitType);
mpLbm->setDomainPartSlip(mpElbeemSettings->domainobsPartslip);
mpLbm->setDumpVelocities(mpElbeemSettings->generateVertexVectors);
mpLbm->setFarFieldSize(mpElbeemSettings->farFieldSize);
debMsgStd("SimulationObject::initialize",DM_MSG,"Added domain bound: "<<dinitType<<" ps="<<mpElbeemSettings->domainobsPartslip<<" vv"<<mpElbeemSettings->generateVertexVectors<<","<<mpLbm->getDumpVelocities(), 9 );
debMsgStd("SimulationObject::initialize",DM_MSG,"Set ElbeemSettings values "<<mpLbm->getGenerateParticles(),10);
}
if(! mpLbm->initializeSolverMemory() ) { errMsg("SimulationObject::initialize","initializeSolverMemory failed"); mPanic=true; return 10; }
if(checkCallerStatus(FLUIDSIM_CBSTATUS_STEP, 0)) { errMsg("SimulationObject::initialize","initializeSolverMemory status"); mPanic=true; return 11; }
if(! mpLbm->initializeSolverGrids() ) { errMsg("SimulationObject::initialize","initializeSolverGrids failed"); mPanic=true; return 12; }
if(checkCallerStatus(FLUIDSIM_CBSTATUS_STEP, 0)) { errMsg("SimulationObject::initialize","initializeSolverGrids status"); mPanic=true; return 13; }
if(! mpLbm->initializeSolverPostinit() ) { errMsg("SimulationObject::initialize","initializeSolverPostin failed"); mPanic=true; return 14; }
if(checkCallerStatus(FLUIDSIM_CBSTATUS_STEP, 0)) { errMsg("SimulationObject::initialize","initializeSolverPostin status"); mPanic=true; return 15; }
// print cell type stats
bool printStats = true;
if(glob_mpnum>0) printStats=false; // skip in this case
if(printStats) {
const int jmax = sizeof(CellFlagType)*8;
int totalCells = 0;
int flagCount[jmax];
for(int j=0; j<jmax ; j++) flagCount[j] = 0;
int diffInits = 0;
LbmSolverInterface::CellIdentifier cid = mpLbm->getFirstCell();
for(; mpLbm->noEndCell( cid );
mpLbm->advanceCell( cid ) ) {
int flag = mpLbm->getCellFlag(cid,0);
int flag2 = mpLbm->getCellFlag(cid,1);
if(flag != flag2) {
diffInits++;
}
for(int j=0; j<jmax ; j++) {
if( flag&(1<<j) ) flagCount[j]++;
}
totalCells++;
}
mpLbm->deleteCellIterator( &cid );
char charNl = '\n';
debugOutNnl("SimulationObject::initializeLbmSimulation celltype stats: " <<charNl, 5);
debugOutNnl("no. of cells = "<<totalCells<<", "<<charNl ,5);
for(int j=0; j<jmax ; j++) {
std::ostringstream out;
if(flagCount[j]>0) {
out<<"\t" << flagCount[j] <<" x "<< convertCellFlagType2String( (CellFlagType)(1<<j) ) <<", " << charNl;
debugOutNnl(out.str(), 5);
}
}
// compute dist. of empty/bnd - fluid - if
// cfEmpty = (1<<0), cfBnd = (1<< 2), cfFluid = (1<<10), cfInter = (1<<11),
if(1){
std::ostringstream out;
out.precision(2); out.width(4);
int totNum = flagCount[1]+flagCount[2]+flagCount[7]+flagCount[8];
double ebFrac = (double)(flagCount[1]+flagCount[2]) / totNum;
double flFrac = (double)(flagCount[7]) / totNum;
double ifFrac = (double)(flagCount[8]) / totNum;
//???
out<<"\tFractions: [empty/bnd - fluid - interface - ext. if] = [" << ebFrac<<" - " << flFrac<<" - " << ifFrac<<"] "<< charNl;
if(diffInits > 0) {
debMsgStd("SimulationObject::initializeLbmSimulation",DM_MSG,"celltype Warning: Diffinits="<<diffInits<<"!" , 5);
}
debugOutNnl(out.str(), 5);
}
} // cellstats
// might be modified by mpLbm
//mpParts->setStart( mGeoStart );? mpParts->setEnd( mGeoEnd );?
mpParts->setStart( mpLbm->getGeoStart() );
mpParts->setEnd( mpLbm->getGeoEnd() );
mpParts->setCastShadows( false );
mpParts->setReceiveShadows( false );
mpParts->searchMaterial( glob->getMaterials() );
// this has to be inited here - before, the values might be unknown
IsoSurface *surf = mpLbm->getSurfaceGeoObj();
if(surf) {
surf->setName( "final" ); // final surface mesh
// warning - this might cause overwriting effects for multiple sims and geom dump...
surf->setCastShadows( true );
surf->setReceiveShadows( false );
surf->searchMaterial( glob->getMaterials() );
if(mShowSurface) mObjects.push_back( surf );
}
#ifdef ELBEEM_PLUGIN
mShowParticles=1; // for e.g. dumping
#endif // ELBEEM_PLUGIN
if((mpLbm->getGenerateParticles()>0.0)||(mpParts->getNumInitialParticles()>0)) {
mShowParticles=1;
mpParts->setDumpParts(true);
}
//debMsgStd("SimulationObject::init",DM_NOTIFY,"Using envvar ELBEEM_DUMPPARTICLE to set mShowParticles, DEBUG!",1);
//} // DEBUG ENABLE!!!!!!!!!!
if(mShowParticles) {
mObjects.push_back(mpParts);
}
// add objects to display for debugging (e.g. levelset particles)
vector<ntlGeometryObject *> debugObjs = mpLbm->getDebugObjects();
for(size_t i=0;i<debugObjs.size(); i++) {
debugObjs[i]->setCastShadows( false );
debugObjs[i]->setReceiveShadows( false );
debugObjs[i]->searchMaterial( glob->getMaterials() );
mObjects.push_back( debugObjs[i] );
debMsgStd("SimulationObject::init",DM_NOTIFY,"Added debug obj "<<debugObjs[i]->getName(), 10 );
}
return 0;
}
