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/*
* RaytraceBenchmark.cpp
*
* Created on: May 8, 2020
* Author: andrei.gheata@cern.ch
*/
#include <iomanip>
#include <VecGeom/management/GeoManager.h>
#include <VecGeom/management/NavIndexTable.h>
#include <VecGeom/navigation/NavigationState.h>
#include <VecGeom/base/Stopwatch.h>
#include "ArgParser.h"
#ifdef VECGEOM_GDML
#include "Frontend.h"
#endif
using namespace vecgeom;
int TestNavIndexCPU(vecgeom::cxx::VPlacedVolume const *const world, int maxdepth);
#ifdef VECGEOM_ENABLE_CUDA
int TestNavIndexGPU(vecgeom::cxx::VPlacedVolume const *const world, int maxdepth);
#endif
namespace visitorcxx {
class GlobalToLocalVisitor {
private:
int fError = 0; ///< error code
public:
GlobalToLocalVisitor() {}
VECCORE_ATT_HOST_DEVICE
int GetError() const { return fError; }
VECCORE_ATT_HOST_DEVICE
void apply(NavStatePath *state, NavIndex_t nav_index)
{
unsigned char level = state->GetLevel();
int dind = 0;
NavIndex_t nav_ind = 1;
VPlacedVolume const *pdaughter = nullptr;
for (int i = 1; i < level + 1; ++i) {
pdaughter = state->At(i);
dind = pdaughter->GetChildId();
if (dind < 0) {
fError = 1;
return;
}
nav_ind = NavStateIndex::PushImpl(nav_ind, pdaughter);
}
// Check if navigation index matches input
if (nav_ind != nav_index) {
fError = 2;
return;
}
// Check if the physical volume is correct
if (NavStateIndex::TopImpl(nav_ind) != state->Top()) {
fError = 3;
return;
}
// Check if the current level is valid
if (level != NavStateIndex::GetLevelImpl(nav_ind)) {
fError = 4;
return;
}
// Check if mother navigation index is consistent
if (level > 0 && nav_ind != NavStateIndex::PushImpl(NavStateIndex::PopImpl(nav_ind), pdaughter)) {
fError = 5;
return;
}
// Check if the number of daughters is correct
if (NavStateIndex::GetNdaughtersImpl(nav_ind) != state->Top()->GetDaughters().size()) {
fError = 6;
return;
}
Transformation3D trans, trans_nav_ind;
state->TopMatrix(trans);
NavStateIndex::TopMatrixImpl(nav_ind, trans_nav_ind);
if (!trans.operator==(trans_nav_ind)) {
fError = 7;
return;
}
// success
fError = 0;
}
};
/// Traverses the geometry tree keeping track of the state context (volume path or navigation state)
/// and applies the injected Visitor
VECCORE_ATT_HOST_DEVICE
template <typename Visitor>
int visitAllPlacedVolumesPassNavIndex(VPlacedVolume const *currentvolume, Visitor *visitor, NavStatePath *state,
NavIndex_t nav_ind)
{
const char *errcodes[] = {"incompatible daughter pointer",
"navigation index mismatch",
"top placed volume pointer mismatch",
"level mismatch",
"navigation index inconsistency for Push/Pop",
"number of daughters mismatch",
"transformation matrix mismatch"};
if (currentvolume != NULL) {
state->Push(currentvolume);
visitor->apply(state, nav_ind);
auto ierr = visitor->GetError();
if (ierr) {
printf("=== EEE === TestNavIndex: %s\n", errcodes[ierr - 1]);
return ierr;
}
for (auto daughter : currentvolume->GetDaughters()) {
auto nav_ind_d = NavStateIndex::PushImpl(nav_ind, daughter);
ierr = visitAllPlacedVolumesPassNavIndex(daughter, visitor, state, nav_ind_d);
if (ierr) return ierr;
}
state->Pop();
}
return 0;
}
} // namespace visitorcxx
int TestNavIndexCPU(vecgeom::cxx::VPlacedVolume const *const world, int maxdepth)
{
// Check performance
using namespace visitorcxx;
Stopwatch timer;
NavStatePath *state = NavStatePath::MakeInstance(maxdepth);
state->Clear();
GlobalToLocalVisitor visitor;
NavIndex_t nav_ind_top = 1; // The navigation index corresponding to the world
timer.Start();
auto ierr = visitAllPlacedVolumesPassNavIndex(world, &visitor, state, nav_ind_top);
auto tvalidate = timer.Stop();
if (!ierr) std::cout << "=== Info navigation table validation on CPU took: " << tvalidate << " sec.\n";
NavStatePath::ReleaseInstance(state);
return ierr;
}
int main(int argc, char *argv[])
{
OPTION_STRING(gdml_name, "default.gdml");
OPTION_INT(max_depth, 0);
OPTION_INT(on_gpu, 0);
#ifndef VECGEOM_GDML
(void)max_depth;
std::cout << "### VecGeom must be compiled with GDML support to run this.\n";
return 1;
#endif
Stopwatch timer;
// Try to open the input file
#ifdef VECGEOM_GDML
GeoManager::Instance().SetTransformationCacheDepth(max_depth);
auto load = vgdml::Frontend::Load(gdml_name.c_str(), false);
if (!load) return 2;
#endif
auto world = GeoManager::Instance().GetWorld();
if (!world) return 3;
int maxdepth = GeoManager::Instance().getMaxDepth();
auto ierr = 0;
timer.Start();
if (on_gpu) {
#ifdef VECGEOM_ENABLE_CUDA
ierr = TestNavIndexGPU(GeoManager::Instance().GetWorld(), maxdepth);
#else
std::cout << "=== Cannot run the test on GPU since VecGeom CUDA support not compiled.\n";
return 1;
#endif
} else {
ierr = TestNavIndexCPU(GeoManager::Instance().GetWorld(), maxdepth);
}
auto validation_time = timer.Stop();
if (ierr)
std::cout << "TestNavIndex FAILED\n";
else {
std::cout << "Navigation index table validation took " << validation_time << " seconds\n";
std::cout << "TestNavIndex PASSED\n";
}
return ierr;
}
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