Sherpa_i.h

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/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef SHERPA_I_SHERPA_I_H
#define SHERPA_I_SHERPA_I_H
 
#include "GaudiKernel/Algorithm.h"
#include "GeneratorModules/GenModule.h"
 
#include "AtlasHepMC/GenEvent.h"
 
namespace SHERPA {
  class Sherpa;
}
 
 
class Sherpa_i : public GenModule {
public:
  Sherpa_i(const std::string& name, ISvcLocator* pSvcLocator);
  StatusCode genInitialize();
  StatusCode callGenerator();
  StatusCode genFinalize();
  StatusCode fillEvt(HepMC::GenEvent* evt);
  #ifndef IS_SHERPA_3
  void getParameters(int &argc, char** &argv);
  #endif
  void compilePlugin(const std::string&);
 
protected:
  
  SHERPA::Sherpa * p_sherpa{};
 
  #ifdef IS_SHERPA_3
  std::map<std::string,std::string> m_inputfiles;
  #else
  std::string m_basefragment; 

  StringProperty m_runcard{this, "RunCard", ""};

  StringArrayProperty m_params{this, "Parameters", {} };
  #endif

  StringArrayProperty m_openloopslibs{this, "OpenLoopsLibs", {} };

  StringArrayProperty m_extrafiles{this, "ExtraFiles", {} };

  IntegerProperty m_ncores{this, "NCores", 1};

  DoubleProperty m_memorymb{this, "MemoryMB", 2500.};

  StringProperty m_plugincode{this, "PluginCode", ""};

  DoubleProperty m_variation_weight_cap{this, "VariationWeightCap", 10.0};
 
  DoubleProperty m_xsscale{this, "CrossSectionScaleFactor", 1.0};
  BooleanProperty m_cleanup{this, "CleanupGeneratedFiles", true};
 
  //Gen_tf run args.
  IntegerProperty m_dsid{this, "Dsid", 999999, "Dataset ID number"};
};
 
 
 
#include "ATOOLS/Math/Random.H"
 
class Atlas_RNG: public ATOOLS::External_RNG {
  CLHEP::HepRandomEngine* p_engine;
  std::string m_filename;
  std::once_flag m_once_flag_atlas_rng;
 
public:
  Atlas_RNG(CLHEP::HepRandomEngine*);
  ~Atlas_RNG();
  double Get();
  bool CanRestoreStatus() const { return true; }
  void SaveStatus();
  void RestoreStatus();
  const std::string GenerateUID() const;
 
};
 
 
#endif // SHERPA_I_SHERPA_I_H