G4UserTaskThreadInitialization.cc

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#include "G4UserTaskThreadInitialization.hh"
 
#include "G4AutoLock.hh"
#include "G4TaskRunManagerKernel.hh"
#include "G4UImanager.hh"
#include "G4VUserActionInitialization.hh"
#include "G4VUserPhysicsList.hh"
#include "G4WorkerRunManager.hh"
#include "G4WorkerTaskRunManager.hh"
#include "G4WorkerThread.hh"
#include "globals.hh"
 
#include <sstream>
 
//============================================================================//
 
namespace
{
G4Mutex rngCreateMutex;
}
 
//============================================================================//
 
G4Thread* G4UserTaskThreadInitialization::CreateAndStartWorker(G4WorkerThread*)
{
  // Note: this method is called by G4MTRunManager, here we are still sequential
  // Create a new thread/worker structure
  return nullptr;
}
 
//============================================================================//
 
// Avoid compilation warning in sequential
void G4UserTaskThreadInitialization::JoinWorker(G4Thread* aThread)
{
  if (aThread != nullptr) {
    G4THREADJOIN(*aThread);
  }
}
 
//============================================================================//
 
void G4UserTaskThreadInitialization::SetupRNGEngine(const CLHEP::HepRandomEngine* aNewRNG) const
{
  G4AutoLock l(&rngCreateMutex);
  // No default available, let's create the instance of random stuff
  // A Call to this just forces the creation to defaults
  G4Random::getTheEngine();
  // Poor man's solution to check which RNG Engine is used in master thread
  CLHEP::HepRandomEngine* retRNG = nullptr;
 
  // Need to make these calls thread safe
  if (dynamic_cast<const CLHEP::HepJamesRandom*>(aNewRNG) != nullptr)
    retRNG = new CLHEP::HepJamesRandom;
  if (dynamic_cast<const CLHEP::MixMaxRng*>(aNewRNG) != nullptr) retRNG = new CLHEP::MixMaxRng;
  if (dynamic_cast<const CLHEP::RanecuEngine*>(aNewRNG) != nullptr)
    retRNG = new CLHEP::RanecuEngine;
  if (dynamic_cast<const CLHEP::Ranlux64Engine*>(aNewRNG) != nullptr)
    retRNG = new CLHEP::Ranlux64Engine;
  if (dynamic_cast<const CLHEP::RanluxppEngine*>(aNewRNG) != nullptr)
    retRNG = new CLHEP::RanluxppEngine;
  if (dynamic_cast<const CLHEP::MTwistEngine*>(aNewRNG) != nullptr)
    retRNG = new CLHEP::MTwistEngine;
  if (dynamic_cast<const CLHEP::DualRand*>(aNewRNG) != nullptr) retRNG = new CLHEP::DualRand;
  if (dynamic_cast<const CLHEP::RanluxEngine*>(aNewRNG) != nullptr)
    retRNG = new CLHEP::RanluxEngine;
  if (dynamic_cast<const CLHEP::RanshiEngine*>(aNewRNG) != nullptr)
    retRNG = new CLHEP::RanshiEngine;
 
  if (retRNG != nullptr)
    G4Random::setTheEngine(retRNG);
  else {
    // Does a new method, such as aNewRng->newEngine() exist to clone it ?
    G4ExceptionDescription msg;
    msg << " Unknown type of RNG Engine - " << G4endl
        << " Can cope only with HepJamesRandom, MixMaxRng, Ranecu, Ranlux64,"
        << " Ranlux++, MTwistEngine, DualRand, Ranlux or Ranshi." << G4endl
        << " Cannot clone this type of RNG engine, as required for this thread" << G4endl
        << " Aborting... " << G4endl;
    G4Exception("G4UserTaskInitializition::SetupRNGEngine()", "Run0122", FatalException, msg);
  }
}
 
//============================================================================//
 
G4WorkerRunManager* G4UserTaskThreadInitialization::CreateWorkerRunManager() const
{
  return new G4WorkerTaskRunManager();
}
 
//============================================================================//