Gabriele Cosmo
249 lines
11 KiB
C++
249 lines
11 KiB
C++
//
|
|
// ********************************************************************
|
|
// * License and Disclaimer *
|
|
// * *
|
|
// * The Geant4 software is copyright of the Copyright Holders of *
|
|
// * the Geant4 Collaboration. It is provided under the terms and *
|
|
// * conditions of the Geant4 Software License, included in the file *
|
|
// * LICENSE and available at http://cern.ch/geant4/license . These *
|
|
// * include a list of copyright holders. *
|
|
// * *
|
|
// * Neither the authors of this software system, nor their employing *
|
|
// * institutes,nor the agencies providing financial support for this *
|
|
// * work make any representation or warranty, express or implied, *
|
|
// * regarding this software system or assume any liability for its *
|
|
// * use. Please see the license in the file LICENSE and URL above *
|
|
// * for the full disclaimer and the limitation of liability. *
|
|
// * *
|
|
// * This code implementation is the result of the scientific and *
|
|
// * technical work of the GEANT4 collaboration. *
|
|
// * By using, copying, modifying or distributing the software (or *
|
|
// * any work based on the software) you agree to acknowledge its *
|
|
// * use in resulting scientific publications, and indicate your *
|
|
// * acceptance of all terms of the Geant4 Software license. *
|
|
// ********************************************************************
|
|
//
|
|
//
|
|
// class description:
|
|
// This is a class for run control in GEANT4 for multi-threaded runs
|
|
// It extends G4RunManager re-implementing multi-threaded behavior in
|
|
// key methods. See documentation for G4RunManager
|
|
// Users initializes an instance of this class instead of G4RunManager
|
|
// to start a multi-threaded simulation.
|
|
|
|
#ifndef G4MTRunManager_h
|
|
#define G4MTRunManager_h 1
|
|
|
|
#include "G4RunManager.hh"
|
|
#include "G4Threading.hh"
|
|
#include "G4RNGHelper.hh"
|
|
#include <list>
|
|
#include <map>
|
|
|
|
class G4MTRunManagerKernel;
|
|
class G4ScoringManager;
|
|
class G4UserWorkerInitialization;
|
|
class G4UserWorkerThreadInitialization;
|
|
|
|
//TODO: Split random number storage from this class
|
|
|
|
class G4MTRunManager : public G4RunManager {
|
|
public:
|
|
G4MTRunManager();
|
|
virtual ~G4MTRunManager();
|
|
//New method
|
|
void SetNumberOfThreads( G4int n );
|
|
G4int GetNumberOfThreads() const { return nworkers; }
|
|
void SetPinAffinity(G4int n=1);
|
|
G4int GetPinAffinity() const { return pinAffinity; }
|
|
public:
|
|
|
|
//Inherited methods to re-implement for MT case
|
|
virtual void Initialize();
|
|
virtual void InitializeEventLoop(G4int n_event, const char* macroFile=0, G4int n_select=-1);
|
|
|
|
//The following do not do anything for this runmanager
|
|
virtual void TerminateOneEvent();
|
|
virtual void ProcessOneEvent(G4int i_event);
|
|
////virtual void TerminateEventLoop();
|
|
virtual void ConstructScoringWorlds();
|
|
virtual void RunTermination();
|
|
|
|
//The following method should be invoked by G4WorkerRunManager for each event.
|
|
//False is returned if no more event to be processed.
|
|
// Note: G4Event object must be instantiated by a worker thread. In case no more
|
|
// event remains to be processed, that worker thread must delete that G4Event
|
|
// object. If a worker runs with its own random number sequence, the boolean flag
|
|
// reseedRequired should be set to false. This is *NOT* allowed for the first event.
|
|
virtual G4bool SetUpAnEvent(G4Event*, long& s1, long& s2, long& s3, G4bool reseedRequired=true);
|
|
// Same as above method, but the seeds are set only once over "eventModulo" events.
|
|
// The return value shows the number of events the caller Worker has to process
|
|
// (between 1 and eventModulo depending on number of events yet to be processed).
|
|
// G4Event object has the event ID of the first event of this bunch.
|
|
// If zero is returned no more event needs to be processed, and worker thread
|
|
// must delete that G4Event.
|
|
virtual G4int SetUpNEvents(G4Event*, G4SeedsQueue* seedsQueue, G4bool reseedRequired=true);
|
|
|
|
//Method called by Initialize() method
|
|
protected:
|
|
//Initialize the seeds list, if derived class does not implement this method
|
|
//A default generation will be used (nevents*2 random seeds)
|
|
//Return true if initialization is done.
|
|
virtual G4bool InitializeSeeds( G4int /*nevts*/) { return false; };
|
|
//Adds one seed to the list of seeds
|
|
virtual void PrepareCommandsStack();
|
|
virtual void StoreRNGStatus(const G4String& filenamePrefix );
|
|
virtual void CreateAndStartWorkers();
|
|
//Creates worker threads and signal to start
|
|
public:
|
|
std::vector<G4String> GetCommandStack();
|
|
//This method is invoked just before spawning the threads to
|
|
//collect from UI managere the list of commands that threads
|
|
//will execute.
|
|
private:
|
|
// Number of worker threads. To be set by SetNumberOfThreads() method.
|
|
G4int nworkers;
|
|
// Force to use this number regardless of SetNumberOfThreads() method.
|
|
G4int forcedNwokers;
|
|
// Pin Affinity parameter
|
|
G4int pinAffinity;
|
|
|
|
//List of workers (i.e. thread)
|
|
typedef std::list<G4Thread*> G4ThreadsList;
|
|
G4ThreadsList threads;
|
|
//List of workers run managers
|
|
//List of all workers run managers
|
|
std::vector<G4String> uiCmdsForWorkers;
|
|
//List of UI commands for workers.
|
|
CLHEP::HepRandomEngine* masterRNGEngine;
|
|
//Pointer to the mastet thread random engine
|
|
protected:
|
|
virtual void WaitForReadyWorkers();
|
|
//Master thread barrier:
|
|
//Call this function to block master thread and
|
|
//wait workers to be ready to process work.
|
|
//This function will return only when all
|
|
//workers are ready to perform event loop.
|
|
virtual void WaitForEndEventLoopWorkers();
|
|
//Master thread barrier:
|
|
//Call this function to block master thread and
|
|
//wait workers have finished current event loop.
|
|
//This function will return only when all
|
|
//workers have finished processing events for this run.
|
|
protected:
|
|
G4int numberOfEventToBeProcessed;
|
|
virtual void TerminateWorkers();
|
|
//Empty the workersList
|
|
|
|
public:
|
|
virtual void ThisWorkerReady();
|
|
//Worker threads barrier:
|
|
//This method should be called by each
|
|
//worker when ready to start thread event-loop
|
|
//This method will return only when all workers
|
|
//are ready.
|
|
//static void ThisWorkerFinishWork();
|
|
//Worker threads barrier:
|
|
//This static method should be called by each
|
|
//worker when finish to process events
|
|
virtual void ThisWorkerEndEventLoop();
|
|
//Worker threads barrier:
|
|
//This method should be called by each
|
|
//worker when worker event loop is terminated.
|
|
typedef std::map<G4int,G4VPhysicalVolume*> masterWorlds_t;
|
|
static G4ScoringManager* GetMasterScoringManager() { return masterScM; }
|
|
static masterWorlds_t& GetMasterWorlds() { return masterWorlds; }
|
|
static void addWorld( G4int counter, G4VPhysicalVolume* w) { masterWorlds.insert( std::make_pair(counter,w) ); }
|
|
const CLHEP::HepRandomEngine* getMasterRandomEngine() const { return masterRNGEngine; }
|
|
private:
|
|
//Handling of master thread scoring worlds, access to it is needed by workers
|
|
static G4ScoringManager* masterScM;
|
|
static masterWorlds_t masterWorlds;
|
|
//Singleton implementing master thread behavior
|
|
static G4MTRunManager* fMasterRM;
|
|
G4MTRunManagerKernel* MTkernel;
|
|
public: // with description
|
|
static G4MTRunManager* GetMasterRunManager();
|
|
// Returns the singleton instance of the run manager common to all threads implementing
|
|
// the master behavior
|
|
static G4RunManagerKernel* GetMasterRunManagerKernel();
|
|
static G4MTRunManagerKernel* GetMTMasterRunManagerKernel();
|
|
// Returns the singleton instance of the run manager kernel common to all threads
|
|
|
|
virtual void SetUserInitialization(G4VUserPhysicsList* userPL);
|
|
virtual void SetUserInitialization(G4VUserDetectorConstruction* userDC);
|
|
virtual void SetUserInitialization(G4UserWorkerInitialization* userInit);
|
|
virtual void SetUserInitialization(G4UserWorkerThreadInitialization* userInit);
|
|
virtual void SetUserInitialization(G4VUserActionInitialization* userInit);
|
|
virtual void SetUserAction(G4UserRunAction* userAction);
|
|
virtual void SetUserAction(G4VUserPrimaryGeneratorAction* userAction);
|
|
virtual void SetUserAction(G4UserEventAction* userAction);
|
|
virtual void SetUserAction(G4UserStackingAction* userAction);
|
|
virtual void SetUserAction(G4UserTrackingAction* userAction);
|
|
virtual void SetUserAction(G4UserSteppingAction* userAction);
|
|
|
|
public:
|
|
// To be invoked solely from G4WorkerRunManager to merge the results
|
|
void MergeScores(const G4ScoringManager* localScoringManager);
|
|
void MergeRun(const G4Run* localRun);
|
|
|
|
public:
|
|
//Handling of more than one run per thread
|
|
enum WorkerActionRequest {
|
|
UNDEFINED ,
|
|
NEXTITERATION , // There is another set of UI commands to be executed
|
|
ENDWORKER // Terminate thread, work finished
|
|
};
|
|
|
|
virtual WorkerActionRequest ThisWorkerWaitForNextAction();
|
|
//Worker thread barrier
|
|
//This method should be used by workers' run manager to wait,
|
|
//after an event loop for the next action to be performed
|
|
// (for example execute a new run)
|
|
//This returns the action to be performed
|
|
protected:
|
|
WorkerActionRequest nextActionRequest;
|
|
virtual void NewActionRequest( WorkerActionRequest newRequest );
|
|
|
|
protected:
|
|
G4int eventModuloDef;
|
|
G4int eventModulo;
|
|
G4int nSeedsUsed;
|
|
G4int nSeedsFilled;
|
|
G4int nSeedsMax;
|
|
G4int nSeedsPerEvent;
|
|
double* randDbl;
|
|
|
|
void RefillSeeds();
|
|
|
|
public:
|
|
inline void SetEventModulo(G4int i=1) { eventModuloDef = i; }
|
|
inline G4int GetEventModulo() const { return eventModuloDef; }
|
|
|
|
public:
|
|
virtual void AbortRun(G4bool softAbort=false);
|
|
virtual void AbortEvent();
|
|
|
|
protected:
|
|
static G4int seedOncePerCommunication;
|
|
// - If it is set to 0 (default), seeds that are centrally managed
|
|
// by G4MTRunManager are set for every event of every worker thread.
|
|
// This option guarantees event reproducability regardless of number
|
|
// of threads.
|
|
// - If it is set to 1, seeds are set only once for the first
|
|
// event of each run of each worker thread. Event reproducability is
|
|
// guaranteed only if the same number of worker threads are used.
|
|
// On the other hand, this option offers better computing performance
|
|
// in particular for applications with relatively small primary
|
|
// particle energy and large number of events.
|
|
// - If it is set to 2, seeds are set only for the first event of
|
|
// group of N events. This option is reserved for the future use when
|
|
// Geant4 allows number of threads to be dynatically changed during an
|
|
// event loop.
|
|
public:
|
|
static G4int SeedOncePerCommunication() { return seedOncePerCommunication; }
|
|
static void SetSeedOncePerCommunication(G4int val) { seedOncePerCommunication = val; }
|
|
};
|
|
|
|
#endif //G4MTRunManager_h
|