exMPI01.cc File Reference

#include "G4MPImanager.hh"
#include "G4MPIsession.hh"
#include "G4RunManager.hh"
#include "G4UImanager.hh"
#include "G4VisExecutive.hh"
#include "ActionInitialization.hh"
#include "DetectorConstruction.hh"
#include "FTFP_BERT.hh"

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Functions
int	main (int argc, char **argv)
	A MPI example code. More...

Function Documentation

int main	(	int	argc,
		char **	argv
	)

A MPI example code.

Definition at line 48 of file exMPI01.cc.

References Initialize(), and session.

{
  // random engine
  CLHEP::MTwistEngine randomEngine;
  G4Random::setTheEngine(&randomEngine);

  // --------------------------------------------------------------------
  // MPI session
  // --------------------------------------------------------------------
  // At first, G4MPImanager/G4MPIsession should be created.
  G4MPImanager* g4MPI = new G4MPImanager(argc, argv);

  // MPI session (G4MPIsession) instead of G4UIterminal
  // Terminal availability depends on your MPI implementation.
  G4MPIsession* session = g4MPI-> GetMPIsession();

  // LAM/MPI users can use G4tcsh.
  G4String prompt = "";
  prompt += "G4MPI";
  prompt += "(%s)[%/]:";
  session-> SetPrompt(prompt);

  // --------------------------------------------------------------------
  // user application setting
  // --------------------------------------------------------------------
#ifdef G4MULTITHREADED
  G4MTRunManager* runManager = new G4MTRunManager();
  runManager-> SetNumberOfThreads(4);
#else
  G4RunManager* runManager = new G4RunManager();
#endif

  // setup your application
  runManager-> SetUserInitialization(new DetectorConstruction);
  runManager-> SetUserInitialization(new FTFP_BERT);
  runManager-> SetUserInitialization(new ActionInitialization);

  runManager-> Initialize();

  G4VisExecutive* visManager = new G4VisExecutive;
  visManager-> Initialize();
  G4cout << G4endl;

  // --------------------------------------------------------------------
  // ready for go
  // MPIsession treats both interactive and batch modes.
  // Just start your session as below.
  // --------------------------------------------------------------------
  session-> SessionStart();

  // --------------------------------------------------------------------
  // termination
  // --------------------------------------------------------------------
  delete visManager;

  delete g4MPI;

  delete runManager;

  return EXIT_SUCCESS;
}