eic-opticks/src/GPUPhotonSourceMinimal.cpp

0001 #include <string>
0002
0003 #include <argparse/argparse.hpp>
0004
0005 #include "FTFP_BERT.hh"
0006 #include "G4OpticalPhysics.hh"
0007 #include "G4RunManager.hh"
0008 #include "G4VModularPhysicsList.hh"
0009
0010 #include "G4UIExecutive.hh"
0011 #include "G4UImanager.hh"
0012 #include "G4VisExecutive.hh"
0013
0014 #include "sysrap/OPTICKS_LOG.hh"
0015
0016 #include "GPUPhotonSourceMinimal.h"
0017 #include "config.h"
0018
0019 using namespace std;
0020
0021 int main(int argc, char **argv)
0022 {
0023     OPTICKS_LOG(argc, argv);
0024
0025     argparse::ArgumentParser program("GPUPhotonSourceMinimal", "0.0.0");
0026
0027     string gdml_file, config_name, macro_name;
0028     bool interactive;
0029
0030     program.add_argument("-g", "--gdml")
0031         .help("path to GDML file")
0032         .default_value(string("geom.gdml"))
0033         .nargs(1)
0034         .store_into(gdml_file);
0035
0036     program.add_argument("-c", "--config")
0037         .help("the name of a config file")
0038         .default_value(string("dev"))
0039         .nargs(1)
0040         .store_into(config_name);
0041
0042     program.add_argument("-m", "--macro")
0043         .help("path to G4 macro")
0044         .default_value(string("run.mac"))
0045         .nargs(1)
0046         .store_into(macro_name);
0047
0048     program.add_argument("-i", "--interactive")
0049         .help("whether to open an interactive window with a viewer")
0050         .flag()
0051         .store_into(interactive);
0052
0053     program.add_argument("-s", "--seed").help("fixed random seed (default: time-based)").scan<'i', long>();
0054
0055     try
0056     {
0057         program.parse_args(argc, argv);
0058     }
0059     catch (const exception &err)
0060     {
0061         cerr << err.what() << endl;
0062         cerr << program;
0063         exit(EXIT_FAILURE);
0064     }
0065
0066     long seed;
0067     if (program.is_used("--seed"))
0068     {
0069         seed = program.get<long>("--seed");
0070     }
0071     else
0072     {
0073         seed = static_cast<long>(time(nullptr));
0074     }
0075     CLHEP::HepRandom::setTheSeed(seed);
0076     G4cout << "Random seed set to: " << seed << G4endl;
0077
0078     gphox::Config cfg(config_name);
0079
0080     // Configure Geant4
0081     // The physics list must be instantiated before other user actions
0082     G4VModularPhysicsList *physics = new FTFP_BERT;
0083     physics->RegisterPhysics(new G4OpticalPhysics);
0084
0085     G4RunManager run_mgr;
0086     run_mgr.SetUserInitialization(physics);
0087
0088     G4App *g4app = new G4App(cfg, gdml_file);
0089     run_mgr.SetUserInitialization(g4app->det_cons_);
0090     run_mgr.SetUserAction(g4app->prim_gen_);
0091     run_mgr.SetUserAction(g4app->run_act_);
0092     run_mgr.SetUserAction(g4app->event_act_);
0093     run_mgr.Initialize();
0094
0095     G4UIExecutive *uix = nullptr;
0096     G4VisManager *vis = nullptr;
0097
0098     if (interactive)
0099     {
0100         uix = new G4UIExecutive(argc, argv);
0101         vis = new G4VisExecutive;
0102         vis->Initialize();
0103     }
0104
0105     G4UImanager *ui = G4UImanager::GetUIpointer();
0106     ui->ApplyCommand("/control/execute " + macro_name);
0107
0108     if (interactive)
0109     {
0110         uix->SessionStart();
0111     }
0112
0113     delete uix;
0114
0115     return EXIT_SUCCESS;
0116 }