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geant4/examples/extended/parallel/TBB/B2b/include/SimpleTbbMasterRunManager.hh
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2016-06-30 14:12:05 +02:00

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//
// ********************************************************************
// * 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 *
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// * 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 class implements the master model run manager for TBB bases
// application.
// It is instantiated by user main (or equivalent function) instead
// of G4[MT]RunManager. It controls the creation of tbb::tasks.
// See G4MTRunManager for documentation of methods relative to base
// class. Only class specific methods are documented here.
//
// Equivalent in traditional MT:
// G4MTRunManager
//
// History:
// Nov 4th, 2013 A. Dotti - First Implementation
#ifndef SIMPLETBBMASTERRUNMANAGER_HH
#define SIMPLETBBMASTERRUNMANAGER_HH
#include "G4MTRunManager.hh"
#include <tbb/task.h>
class SimpleTbbMasterRunManager : public G4MTRunManager {
public:
SimpleTbbMasterRunManager(); // G4RunManagerKernel* existingRMK=0);
// Default constructor,
// tasklist is the tbb::task_list to which the created tasks will be added.
// nEvents is the number of events for which each tbb::task is responsible
//
virtual ~SimpleTbbMasterRunManager();
virtual void RunTermination();
void SetTaskList( tbb::task_list* tl ) { theTasks = tl; }
//Set a reference to the output task list where new tasks will
//be added to
void SetNumberEventsPerTask( G4int nt ) { nEvtsPerTask = nt; }
//Specify number of events that each simulation task is responsible
//for
protected:
virtual void CreateAndStartWorkers();
virtual void TerminateWorkers();
virtual void CreateTask(G4int id,G4int evts);
//Creates a concrete tbb::task with index id
//responsible for evts events
protected:
//Barriers mechanism for TBB is non existing
virtual void WaitForReadyWorkers() {}
virtual void WaitForEndEventLoopWorkers() {}
virtual void ThisWorkerReady() {}
virtual void ThisWorkerEndEventLoop() {}
virtual WorkerActionRequest ThisWorkerWaitForNextAction()
{ return WorkerActionRequest::UNDEFINED; }
virtual void NewActionRequest( WorkerActionRequest /*newRequest*/ ) {}
private:
tbb::task_list* theTasks;
G4int nEvtsPerTask;
};
#endif //TBBMASTERRUNMANAGER_HH