Gabriele Cosmo
630 lines
20 KiB
C++
630 lines
20 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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#include "G4MTRunManager.hh"
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#include "G4MTRunManagerKernel.hh"
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#include "G4Timer.hh"
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#include "G4StateManager.hh"
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#include "G4ScoringManager.hh"
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#include "G4TransportationManager.hh"
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#include "G4VUserActionInitialization.hh"
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#include "G4UserWorkerInitialization.hh"
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#include "G4UserWorkerThreadInitialization.hh"
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#include "G4WorkerThread.hh"
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#include "G4Run.hh"
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#include "G4UImanager.hh"
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#include "G4AutoLock.hh"
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#include "G4WorkerRunManager.hh"
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#include "G4UserRunAction.hh"
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#include "G4ProductionCutsTable.hh"
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#include "G4Timer.hh"
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#include "G4TiMemory.hh"
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G4ScoringManager* G4MTRunManager::masterScM = 0;
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G4MTRunManager::masterWorlds_t G4MTRunManager::masterWorlds = G4MTRunManager::masterWorlds_t();
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G4MTRunManager* G4MTRunManager::fMasterRM = 0;
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G4int G4MTRunManager::seedOncePerCommunication = 0;
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namespace {
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G4Mutex cmdHandlingMutex = G4MUTEX_INITIALIZER;
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G4Mutex scorerMergerMutex = G4MUTEX_INITIALIZER;
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G4Mutex runMergerMutex = G4MUTEX_INITIALIZER;
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G4Mutex setUpEventMutex = G4MUTEX_INITIALIZER;
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}
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G4MTRunManager* G4MTRunManager::GetMasterRunManager()
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{
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////////#ifdef G4MULTITHREADED
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return fMasterRM;
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////////#else
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//////// return G4RunManager::GetRunManager();
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////////#endif
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}
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G4RunManagerKernel* G4MTRunManager::GetMasterRunManagerKernel()
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{
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return fMasterRM->kernel;
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}
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G4MTRunManagerKernel* G4MTRunManager::GetMTMasterRunManagerKernel()
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{
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return fMasterRM->MTkernel;
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}
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G4MTRunManager::G4MTRunManager() : G4RunManager(masterRM),
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nworkers(2),forcedNwokers(-1),pinAffinity(0),
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masterRNGEngine(0),
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nextActionRequest(WorkerActionRequest::UNDEFINED),
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eventModuloDef(0),eventModulo(1),
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nSeedsUsed(0),nSeedsFilled(0),
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nSeedsMax(10000),nSeedsPerEvent(2)
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{
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if ( fMasterRM )
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{
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G4Exception("G4MTRunManager::G4MTRunManager", "Run0110",FatalException,
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"Another instance of a G4MTRunManager already exists.");
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}
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fMasterRM = this;
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MTkernel = static_cast<G4MTRunManagerKernel*>(kernel);
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#ifndef G4MULTITHREADED
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G4ExceptionDescription msg;
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msg << "Geant4 code is compiled without multi-threading support"
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<< "(-DG4MULTITHREADED is set to off).\n";
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msg << "G4MTRunManager can only be used in multi-threaded applications.";
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G4Exception("G4MTRunManager::G4MTRunManager","Run0111",FatalException,msg);
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#endif
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G4int numberOfStaticAllocators = kernel->GetNumberOfStaticAllocators();
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if(numberOfStaticAllocators>0)
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{
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G4ExceptionDescription msg1;
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msg1 << "There are " << numberOfStaticAllocators
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<< " static G4Allocator objects detected.\n"
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<< "In multi-threaded mode, all G4Allocator objects must be dynamicly instantiated.";
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G4Exception("G4MTRunManager::G4MTRunManager","Run1035",FatalException,msg1);
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}
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G4UImanager::GetUIpointer()->SetMasterUIManager(true);
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masterScM = G4ScoringManager::GetScoringManagerIfExist();
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//Check if a default RandomNumberGenerator has been created by user,
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// if not create default one
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//Note this call forces creation of defaults if not already there
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//G4Random::getTheEngine(); //User did not specify RNG, create defaults
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//Now remember the master instance of the RNG Engine
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masterRNGEngine = G4Random::getTheEngine();
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numberOfEventToBeProcessed = 0;
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randDbl = new double[nSeedsPerEvent*nSeedsMax];
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char* env = getenv("G4FORCENUMBEROFTHREADS");
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if(env)
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{
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G4String envS = env;
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if(envS=="MAX"||envS=="max")
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{ forcedNwokers = G4Threading::G4GetNumberOfCores(); }
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else
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{
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std::istringstream is(env);
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G4int val = -1;
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is >> val;
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if(val>0)
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{ forcedNwokers = val; }
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else
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{
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G4ExceptionDescription msg2;
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msg2 << "Environment variable G4FORCENUMBEROFTHREADS has an invalid value <"
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<< envS << ">. It has to be an integer or a word \"max\".\n"
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<< "G4FORCENUMBEROFTHREADS is ignored.";
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G4Exception("G4MTRunManager::G4MTRunManager","Run1039",JustWarning,msg2);
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}
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}
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if(forcedNwokers>0)
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{
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nworkers = forcedNwokers;
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G4cout << "### Number of threads is forced to " << forcedNwokers
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<< " by Environment variable G4FORCENUMBEROFTHREADS." << G4endl;
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}
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}
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}
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G4MTRunManager::~G4MTRunManager()
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{
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//TODO: Currently does not work due to concurrent deletion of something
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// that is shared:
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//G4ProcessTable::DeleteMessenger from ~G4RunManager
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//G4cout<<"Destroy MTRunManager"<<G4endl;//ANDREA
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TerminateWorkers();
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delete [] randDbl;
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}
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void G4MTRunManager::StoreRNGStatus(const G4String& fn )
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{
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std::ostringstream os;
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os << randomNumberStatusDir << "G4Master_"<<fn <<".rndm";
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G4Random::saveEngineStatus(os.str().c_str());
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}
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void G4MTRunManager::SetNumberOfThreads(G4int n )
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{
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if ( threads.size() != 0 )
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{
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G4ExceptionDescription msg;
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msg << "Number of threads cannot be changed at this moment \n"
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<< "(old threads are still alive). Method ignored.";
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G4Exception("G4MTRunManager::SetNumberOfThreads(G4int)",
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"Run0112", JustWarning, msg);
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}
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else if ( forcedNwokers > 0 )
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{
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G4ExceptionDescription msg;
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msg << "Number of threads is forced to " << forcedNwokers
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<< " by G4FORCENUMBEROFTHREADS shell variable.\n"
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<< "Method ignored.";
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G4Exception("G4MTRunManager::SetNumberOfThreads(G4int)",
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"Run0113", JustWarning, msg);
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}
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else
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{
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nworkers = n;
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}
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}
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void G4MTRunManager::Initialize()
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{
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G4RunManager::Initialize();
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// make sure all worker threads are set up.
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BeamOn(0);
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SetRunIDCounter(0);
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///G4UImanager::GetUIpointer()->SetIgnoreCmdNotFound(true);
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}
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////void G4MTRunManager::TerminateEventLoop()
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////{
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//// //Nothing to do
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////}
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void G4MTRunManager::ProcessOneEvent(G4int)
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{
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//Nothing to do
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}
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void G4MTRunManager::TerminateOneEvent()
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{
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//Nothing to do
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}
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void G4MTRunManager::PrepareCommandsStack() {
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G4AutoLock l(&cmdHandlingMutex);
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uiCmdsForWorkers.clear();
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std::vector<G4String>* cmdCopy = G4UImanager::GetUIpointer()->GetCommandStack();
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for ( std::vector<G4String>::const_iterator it = cmdCopy->begin() ;
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it != cmdCopy->end(); ++it )
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uiCmdsForWorkers.push_back(*it);
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cmdCopy->clear();
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delete cmdCopy;
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}
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std::vector<G4String> G4MTRunManager::GetCommandStack()
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{
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G4AutoLock l(&cmdHandlingMutex);
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return uiCmdsForWorkers;
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}
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void G4MTRunManager::CreateAndStartWorkers()
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{
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//Now loop on requested number of workers
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//This will also start the workers
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//Currently we do not allow to change the
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//number of threads: threads area created once
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if ( threads.size() == 0 ) {
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for ( G4int nw = 0 ; nw<nworkers; ++nw) {
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//Create a new worker and remember it
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G4WorkerThread* context = new G4WorkerThread;
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context->SetNumberThreads(nworkers);
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context->SetThreadId(nw);
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G4Thread* thread = userWorkerThreadInitialization->CreateAndStartWorker(context);
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threads.push_back(thread);
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}
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}
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//Signal to threads they can start a new run
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NewActionRequest(WorkerActionRequest::NEXTITERATION);
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}
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void G4MTRunManager::InitializeEventLoop(G4int n_event, const char* macroFile, G4int n_select)
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{
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TIMEMORY_AUTO_TIMER("");
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MTkernel->SetUpDecayChannels();
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numberOfEventToBeProcessed = n_event;
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numberOfEventProcessed = 0;
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if(!fakeRun)
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{
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nSeedsUsed = 0;
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nSeedsFilled = 0;
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if(verboseLevel>0)
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{ timer->Start(); }
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n_select_msg = n_select;
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if(macroFile!=0)
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{
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if(n_select_msg<0) n_select_msg = n_event;
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msgText = "/control/execute ";
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msgText += macroFile;
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selectMacro = macroFile;
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}
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else
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{
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n_select_msg = -1;
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selectMacro = "";
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}
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//initialize seeds
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//If user did not implement InitializeSeeds,
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// use default: nSeedsPerEvent seeds per event
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if( eventModuloDef > 0 )
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{
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eventModulo = eventModuloDef;
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if(eventModulo > numberOfEventToBeProcessed/nworkers)
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{
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eventModulo = numberOfEventToBeProcessed/nworkers;
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if(eventModulo<1) eventModulo =1;
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G4ExceptionDescription msgd;
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msgd << "Event modulo is reduced to " << eventModulo
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<< " to distribute events to all threads.";
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G4Exception("G4MTRunManager::InitializeEventLoop()",
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"Run10035", JustWarning, msgd);
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}
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}
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else
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{
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eventModulo = int(std::sqrt(double(numberOfEventToBeProcessed/nworkers)));
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if(eventModulo<1) eventModulo =1;
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}
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if ( InitializeSeeds(n_event) == false && n_event>0 )
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{
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G4RNGHelper* helper = G4RNGHelper::GetInstance();
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switch(seedOncePerCommunication)
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{
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case 0:
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nSeedsFilled = n_event;
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break;
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case 1:
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nSeedsFilled = nworkers;
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break;
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case 2:
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nSeedsFilled = n_event/eventModulo + 1;
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break;
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default:
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G4ExceptionDescription msgd;
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msgd << "Parameter value <" << seedOncePerCommunication
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<< "> of seedOncePerCommunication is invalid. It is reset to 0." ;
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G4Exception("G4MTRunManager::InitializeEventLoop()",
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"Run10036", JustWarning, msgd);
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seedOncePerCommunication = 0;
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nSeedsFilled = n_event;
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}
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// Generates up to nSeedsMax seed pairs only.
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if(nSeedsFilled>nSeedsMax) nSeedsFilled=nSeedsMax;
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masterRNGEngine->flatArray(nSeedsPerEvent*nSeedsFilled,randDbl);
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helper->Fill(randDbl,nSeedsFilled,n_event,nSeedsPerEvent);
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}
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}
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//Now initialize workers. Check if user defined a WorkerThreadInitialization
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if ( userWorkerThreadInitialization == 0 )
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{ userWorkerThreadInitialization = new G4UserWorkerThreadInitialization(); }
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//Prepare UI commands for threads
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PrepareCommandsStack();
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//Start worker threads
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CreateAndStartWorkers();
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// We need a barrier here. Wait for workers to start event loop.
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//This will return only when all workers have started processing events.
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WaitForReadyWorkers();
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}
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void G4MTRunManager::RefillSeeds()
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{
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G4RNGHelper* helper = G4RNGHelper::GetInstance();
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G4int nFill = 0;
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switch(seedOncePerCommunication)
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{
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case 0:
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nFill = numberOfEventToBeProcessed - nSeedsFilled;
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break;
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case 1:
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nFill = nworkers - nSeedsFilled;
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break;
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case 2:
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default:
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nFill = (numberOfEventToBeProcessed - nSeedsFilled*eventModulo)/eventModulo + 1;
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}
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// Generates up to nSeedsMax seed pairs only.
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if(nFill>nSeedsMax) nFill=nSeedsMax;
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masterRNGEngine->flatArray(nSeedsPerEvent*nFill,randDbl);
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helper->Refill(randDbl,nFill);
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nSeedsFilled += nFill;
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//G4cout<<"helper->Refill() for "<<nFill<<" events."<<G4endl;
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}
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void G4MTRunManager::RunTermination()
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{
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//Wait for all worker threads to have finished the run
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//i.e. wait for them to return from RunTermination()
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//This guarantee that userrunaction for workers has been called
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// Wait now for all threads to finish event-loop
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WaitForEndEventLoopWorkers();
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//Now call base-class methof
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G4RunManager::TerminateEventLoop();
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G4RunManager::RunTermination();
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}
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void G4MTRunManager::ConstructScoringWorlds()
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{
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masterScM = G4ScoringManager::GetScoringManagerIfExist();
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//Call base class stuff...
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G4RunManager::ConstructScoringWorlds();
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masterWorlds.clear();
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size_t nWorlds = G4TransportationManager::GetTransportationManager()->GetNoWorlds();
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std::vector<G4VPhysicalVolume*>::iterator itrW
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= G4TransportationManager::GetTransportationManager()->GetWorldsIterator();
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for(size_t iWorld=0;iWorld<nWorlds;iWorld++)
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{
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addWorld(iWorld,*itrW);
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itrW++;
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}
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}
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void G4MTRunManager::SetUserInitialization(G4UserWorkerInitialization* userInit)
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{
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userWorkerInitialization = userInit;
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}
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void G4MTRunManager::SetUserInitialization(G4UserWorkerThreadInitialization* userInit)
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{
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userWorkerThreadInitialization = userInit;
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}
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void G4MTRunManager::SetUserInitialization(G4VUserActionInitialization* userInit)
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{
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userActionInitialization = userInit;
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userActionInitialization->BuildForMaster();
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}
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void G4MTRunManager::SetUserInitialization(G4VUserPhysicsList *userPL)
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{
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G4RunManager::SetUserInitialization(userPL);
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//Needed for MT, to be moved in kernel
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}
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void G4MTRunManager::SetUserInitialization(G4VUserDetectorConstruction *userDC)
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{
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G4RunManager::SetUserInitialization(userDC);
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}
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void G4MTRunManager::SetUserAction(G4UserRunAction* userAction)
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{
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G4RunManager::SetUserAction(userAction);
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if(userAction) userAction->SetMaster();
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}
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void G4MTRunManager::SetUserAction(G4VUserPrimaryGeneratorAction* /*userAction*/)
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{
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G4Exception("G4MTRunManager::SetUserAction()", "Run0123", FatalException,
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"For multi-threaded version, define G4VUserPrimaryGeneratorAction in G4VUserActionInitialization.");
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}
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void G4MTRunManager::SetUserAction(G4UserEventAction* /*userAction*/)
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{
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G4Exception("G4MTRunManager::SetUserAction()", "Run0124", FatalException,
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"For multi-threaded version, define G4UserEventAction in G4VUserActionInitialization.");
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}
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void G4MTRunManager::SetUserAction(G4UserStackingAction* /*userAction*/)
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{
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G4Exception("G4MTRunManager::SetUserAction()", "Run0125", FatalException,
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"For multi-threaded version, define G4UserStackingAction in G4VUserActionInitialization.");
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}
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void G4MTRunManager::SetUserAction(G4UserTrackingAction* /*userAction*/)
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{
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G4Exception("G4MTRunManager::SetUserAction()", "Run0126", FatalException,
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"For multi-threaded version, define G4UserTrackingAction in G4VUserActionInitialization.");
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}
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void G4MTRunManager::SetUserAction(G4UserSteppingAction* /*userAction*/)
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{
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G4Exception("G4MTRunManager::SetUserAction()", "Run0127", FatalException,
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"For multi-threaded version, define G4UserSteppingAction in G4VUserActionInitialization.");
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}
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void G4MTRunManager::MergeScores(const G4ScoringManager* localScoringManager)
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{
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G4AutoLock l(&scorerMergerMutex);
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if(masterScM) masterScM->Merge(localScoringManager);
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}
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void G4MTRunManager::MergeRun(const G4Run* localRun)
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{
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G4AutoLock l(&runMergerMutex);
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if(currentRun) currentRun->Merge(localRun);
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}
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G4bool G4MTRunManager::SetUpAnEvent(G4Event* evt,long& s1,long& s2,long& s3,G4bool reseedRequired)
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{
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G4AutoLock l(&setUpEventMutex);
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if( numberOfEventProcessed < numberOfEventToBeProcessed )
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{
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evt->SetEventID(numberOfEventProcessed);
|
|
if(reseedRequired)
|
|
{
|
|
G4RNGHelper* helper = G4RNGHelper::GetInstance();
|
|
G4int idx_rndm = nSeedsPerEvent*nSeedsUsed;
|
|
s1 = helper->GetSeed(idx_rndm);
|
|
s2 = helper->GetSeed(idx_rndm+1);
|
|
if(nSeedsPerEvent==3) s3 = helper->GetSeed(idx_rndm+2);
|
|
nSeedsUsed++;
|
|
if(nSeedsUsed==nSeedsFilled) RefillSeeds();
|
|
}
|
|
numberOfEventProcessed++;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
G4int G4MTRunManager::SetUpNEvents(G4Event* evt, G4SeedsQueue* seedsQueue,G4bool reseedRequired)
|
|
{
|
|
G4AutoLock l(&setUpEventMutex);
|
|
if( numberOfEventProcessed < numberOfEventToBeProcessed && !runAborted )
|
|
{
|
|
G4int nev = eventModulo;
|
|
if(numberOfEventProcessed + nev > numberOfEventToBeProcessed)
|
|
{ nev = numberOfEventToBeProcessed - numberOfEventProcessed; }
|
|
evt->SetEventID(numberOfEventProcessed);
|
|
if(reseedRequired)
|
|
{
|
|
G4RNGHelper* helper = G4RNGHelper::GetInstance();
|
|
G4int nevRnd = nev;
|
|
if(seedOncePerCommunication>0) nevRnd = 1;
|
|
for(int i=0;i<nevRnd;i++)
|
|
{
|
|
seedsQueue->push(helper->GetSeed(nSeedsPerEvent*nSeedsUsed));
|
|
seedsQueue->push(helper->GetSeed(nSeedsPerEvent*nSeedsUsed+1));
|
|
if(nSeedsPerEvent==3)
|
|
seedsQueue->push(helper->GetSeed(nSeedsPerEvent*nSeedsUsed+2));
|
|
nSeedsUsed++;
|
|
if(nSeedsUsed==nSeedsFilled) RefillSeeds();
|
|
}
|
|
}
|
|
numberOfEventProcessed += nev;
|
|
return nev;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void G4MTRunManager::TerminateWorkers()
|
|
{
|
|
//Force workers to execute (if any) all UI commands left in the stack
|
|
RequestWorkersProcessCommandsStack();
|
|
//Ask workers to exit
|
|
NewActionRequest( WorkerActionRequest::ENDWORKER );
|
|
//Now join threads.
|
|
#ifdef G4MULTITHREADED //protect here to prevent warning in compilation
|
|
while ( ! threads.empty() )
|
|
{
|
|
G4Thread* t = * ( threads.begin() );
|
|
threads.pop_front();
|
|
userWorkerThreadInitialization->JoinWorker(t);
|
|
//G4THREADJOIN(*t);
|
|
delete t;
|
|
}
|
|
#endif
|
|
threads.clear();
|
|
}
|
|
|
|
void G4MTRunManager::AbortRun(G4bool softAbort)
|
|
{
|
|
// This method is valid only for GeomClosed or EventProc state
|
|
G4ApplicationState currentState =
|
|
G4StateManager::GetStateManager()->GetCurrentState();
|
|
if(currentState==G4State_GeomClosed || currentState==G4State_EventProc)
|
|
{
|
|
runAborted = true;
|
|
MTkernel->BroadcastAbortRun(softAbort);
|
|
}
|
|
else
|
|
{
|
|
G4cerr << "Run is not in progress. AbortRun() ignored." << G4endl;
|
|
}
|
|
}
|
|
|
|
void G4MTRunManager::AbortEvent()
|
|
{
|
|
// nothing to do in the master thread
|
|
}
|
|
|
|
void G4MTRunManager::WaitForReadyWorkers() {
|
|
beginOfEventLoopBarrier.Wait( GetNumberActiveThreads() );
|
|
endOfEventLoopBarrier.ResetCounter();
|
|
beginOfEventLoopBarrier.ReleaseBarrier();
|
|
}
|
|
|
|
void G4MTRunManager::ThisWorkerReady() {
|
|
beginOfEventLoopBarrier.ThisWorkerReady();
|
|
}
|
|
|
|
void G4MTRunManager::WaitForEndEventLoopWorkers() {
|
|
endOfEventLoopBarrier.Wait( GetNumberActiveThreads() );
|
|
beginOfEventLoopBarrier.ResetCounter();
|
|
endOfEventLoopBarrier.ReleaseBarrier();
|
|
}
|
|
|
|
void G4MTRunManager::ThisWorkerEndEventLoop() {
|
|
endOfEventLoopBarrier.ThisWorkerReady();
|
|
}
|
|
|
|
void G4MTRunManager::NewActionRequest(G4MTRunManager::WorkerActionRequest newRequest) {
|
|
nextActionRequestBarrier.Wait( GetNumberActiveThreads() );
|
|
//nextActionRequest is a shared resource, but there is no
|
|
//data-race thanks to the barrier: all threads are waiting
|
|
nextActionRequest = newRequest;
|
|
nextActionRequestBarrier.ReleaseBarrier();
|
|
}
|
|
|
|
G4MTRunManager::WorkerActionRequest G4MTRunManager::ThisWorkerWaitForNextAction() {
|
|
nextActionRequestBarrier.ThisWorkerReady();
|
|
return nextActionRequest;
|
|
}
|
|
|
|
void G4MTRunManager::RequestWorkersProcessCommandsStack() {
|
|
PrepareCommandsStack();
|
|
NewActionRequest(WorkerActionRequest::PROCESSUI);
|
|
processUIBarrier.SetActiveThreads( GetNumberActiveThreads() );
|
|
processUIBarrier.WaitForReadyWorkers();
|
|
}
|
|
|
|
void G4MTRunManager::ThisWorkerProcessCommandsStackDone() {
|
|
processUIBarrier.ThisWorkerReady();
|
|
}
|
|
void G4MTRunManager::SetPinAffinity(G4int n)
|
|
{
|
|
if ( n == 0 )
|
|
{
|
|
G4Exception("G4MTRunManager::SetPinAffinity",
|
|
"Run0114",FatalException,
|
|
"Pin affinity must be >0 or <0.");
|
|
}
|
|
pinAffinity = n;
|
|
return;
|
|
}
|