Commit 50cd61f8 authored by Simon Spannagel's avatar Simon Spannagel
Browse files

Detect Geant4 Multithreading Capabilities and Act On Them 

This fixes #219
parent 15565f2b

src/modules/GeometryBuilderGeant4/GeometryBuilderGeant4Module.cpp

+9 −1
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ 
#include <string>

#include <utility>



#include <G4GlobalConfig.hh>

#include <G4UImanager.hh>

#include <G4UIterminal.hh>

#include <G4Version.hh>
@@ -42,8 +43,15 @@ using namespace ROOT; 
GeometryBuilderGeant4Module::GeometryBuilderGeant4Module(Configuration& config, Messenger*, GeometryManager* geo_manager)

    : Module(config), geo_manager_(geo_manager), run_manager_g4_(nullptr) {

    geometry_construction_ = new GeometryConstructionG4(geo_manager_, config_);

    // Enable multithreading of this module if multithreading is enabled



// Enable multithreading for Geant4 if it has been built with support for it:

#ifdef G4MULTITHREADED

    LOG(INFO) << "Detected Geant4 multithreading capabilities, enabling multithreading support";

    allow_multithreading();

#else

    LOG(ERROR) << "Geant4 has been built without multithreading support, forcing multithreading off." << std::endl

               << "To allow multithreading, rebuild Geant4 with the GEANT4_BUILD_MULTITHREADED option enabled.";

#endif



    // Read Geant4 verbosity configuration

    auto g4cerr_log_level = config_.get<std::string>("log_level_g4cerr", "WARNING");