genie::CascadeReweight Class Reference

In this module, the event weight is set depending on the FSI fate. The weights are set depending on the xml configuration defined by the user. More...

#include <CascadeReweight.h>

Inheritance diagram for genie::CascadeReweight:

Public Member Functions
	CascadeReweight ()
	CascadeReweight (string config)
	~CascadeReweight ()
void	ProcessEventRecord (GHepRecord *event_rec) const
void	Configure (const Registry &config)
void	Configure (string param_set)
Public Member Functions inherited from genie::EventRecordVisitorI
virtual	~EventRecordVisitorI ()
Public Member Functions inherited from genie::Algorithm
virtual	~Algorithm ()
virtual void	FindConfig (void)
virtual const Registry &	GetConfig (void) const
Registry *	GetOwnedConfig (void)
virtual const AlgId &	Id (void) const
	Get algorithm ID. More...
virtual AlgStatus_t	GetStatus (void) const
	Get algorithm status. More...
virtual bool	AllowReconfig (void) const
virtual AlgCmp_t	Compare (const Algorithm *alg) const
	Compare with input algorithm. More...
virtual void	SetId (const AlgId &id)
	Set algorithm ID. More...
virtual void	SetId (string name, string config)
const Algorithm *	SubAlg (const RgKey &registry_key) const
void	AdoptConfig (void)
void	AdoptSubstructure (void)
virtual void	Print (ostream &stream) const
	Print algorithm info. More...

Protected Member Functions
double	GetEventWeight (const GHepRecord &ev) const
	get weight from fate and configuration More...
Protected Member Functions inherited from genie::EventRecordVisitorI
	EventRecordVisitorI ()
	EventRecordVisitorI (string name)
	EventRecordVisitorI (string name, string config)
Protected Member Functions inherited from genie::Algorithm
	Algorithm ()
	Algorithm (string name)
	Algorithm (string name, string config)
void	Initialize (void)
void	DeleteConfig (void)
void	DeleteSubstructure (void)
Registry *	ExtractLocalConfig (const Registry &in) const
Registry *	ExtractLowerConfig (const Registry &in, const string &alg_key) const
	Split an incoming configuration Registry into a block valid for the sub-algo identified by alg_key. More...
template<class T >
bool	GetParam (const RgKey &name, T &p, bool is_top_call=true) const
template<class T >
bool	GetParamDef (const RgKey &name, T &p, const T &def) const
template<class T >
int	GetParamVect (const std::string &comm_name, std::vector< T > &v, bool is_top_call=true) const
	Handle to load vectors of parameters. More...
int	GetParamVectKeys (const std::string &comm_name, std::vector< RgKey > &k, bool is_top_call=true) const
int	AddTopRegistry (Registry *rp, bool owns=true)
	add registry with top priority, also update ownership More...
int	AddLowRegistry (Registry *rp, bool owns=true)
	add registry with lowest priority, also update ownership More...
int	MergeTopRegistry (const Registry &r)
int	AddTopRegisties (const vector< Registry * > &rs, bool owns=false)
	Add registries with top priority, also udated Ownerships. More...

Private Member Functions
void	LoadConfig (void)
	read configuration from xml file More...

Static Private Member Functions
static const std::map< INukeFateHN_t, string > &	GetEINukeFateKeysMap (void)

Private Attributes
std::map< INukeFateHN_t, double >	fDefaultMap
std::map< INukeFateHN_t, map< int, double > >	fFateWeightsMap

Additional Inherited Members
Static Public Member Functions inherited from genie::Algorithm
static string	BuildParamVectKey (const std::string &comm_name, unsigned int i)
static string	BuildParamVectSizeKey (const std::string &comm_name)
Protected Attributes inherited from genie::Algorithm
bool	fAllowReconfig
bool	fOwnsSubstruc
	true if it owns its substructure (sub-algs,...) More...
AlgId	fID
	algorithm name and configuration set More...
vector< Registry * >	fConfVect
vector< bool >	fOwnerships
	ownership for every registry in fConfVect More...
AlgStatus_t	fStatus
	algorithm execution status More...
AlgMap *	fOwnedSubAlgMp
	local pool for owned sub-algs (taken out of the factory pool) More...

Detailed Description

In this module, the event weight is set depending on the FSI fate. The weights are set depending on the xml configuration defined by the user.

Author

Julia Tena-Vidal <j.tena-vidal liverpool.ac.uk>

July 2021

Copyright (c) 2003-2020, The GENIE Collaboration For the full text of the license visit http://copyright.genie-mc.org

Definition at line 26 of file CascadeReweight.h.

Constructor & Destructor Documentation

CascadeReweight::CascadeReweight

(

)

Definition at line 37 of file CascadeReweight.cxx.

    : EventRecordVisitorI("genie::CascadeReweight") {}

CascadeReweight::CascadeReweight

(

string

config

)

Definition at line 40 of file CascadeReweight.cxx.

    : EventRecordVisitorI("genie::CascadeReweight", config) {}

CascadeReweight::~CascadeReweight

(

)

Definition at line 43 of file CascadeReweight.cxx.

{}

Member Function Documentation

void CascadeReweight::Configure ( const Registry &  config )

virtual

Configure the algorithm with an external registry The registry is merged with the top level registry if it is owned, Otherwise a copy of it is added with the highest priority

Reimplemented from genie::Algorithm.

Definition at line 94 of file CascadeReweight.cxx.

                                                      {
  Algorithm::Configure(config);
  this->LoadConfig();
}

void CascadeReweight::Configure ( string  config )

virtual

Configure the algorithm from the AlgoConfigPool based on param_set string given in input An algorithm contains a vector of registries coming from different xml configuration files, which are loaded according a very precise prioriy This methods will load a number registries in order of priority: 1) "Tunable" parameter set from CommonParametes. This is loaded with the highest prioriry and it is designed to be used for tuning procedure Usage not expected from the user. 2) For every string defined in "CommonParame" the corresponding parameter set will be loaded from CommonParameter.xml 3) parameter set specified by the config string and defined in the xml file of the algorithm 4) if config is not "Default" also the Default parameter set from the same xml file will be loaded Effectively this avoids the repetion of a parameter when it is not changed in the requested configuration

Reimplemented from genie::Algorithm.

Definition at line 99 of file CascadeReweight.cxx.

                                                {
  Algorithm::Configure(param_set);
  this->LoadConfig();
}

static const std::map<INukeFateHN_t,string>& genie::CascadeReweight::GetEINukeFateKeysMap ( void  )

inlinestaticprivate

Definition at line 46 of file CascadeReweight.h.

                                                                           {
    static const std::map<INukeFateHN_t,string> map_keys { {kIHNFtNoInteraction,"NoInteraction"},{kIHNFtCEx,"CEx"}, {kIHNFtElas,"Elastic"}, {kIHNFtInelas,"Inelastic"},{kIHNFtAbs,"Abs"}, {kIHNFtCmp,"Cmp"} } ;
    return map_keys ; 
  }

double CascadeReweight::GetEventWeight ( const GHepRecord &  ev ) const

protected

get weight from fate and configuration

Definition at line 58 of file CascadeReweight.cxx.

                                                                    {

  GHepParticle *p = 0;
  TIter event_iter(&event);
  double total_weight = 1.;
  while ((p = dynamic_cast<GHepParticle *>(event_iter.Next()))) {
    // Look only at stable particles in the nucleus:
    if ( p->Status() != kIStHadronInTheNucleus ) continue ; 
    // Get particle fate
    auto fate_rescatter = p->RescatterCode();
    // Only look at particles that had FSI
    if (fate_rescatter < 0 || fate_rescatter == kIHNFtUndefined)
      continue;
    INukeFateHN_t fate = (INukeFateHN_t)fate_rescatter;

    // Read map weight:
    const auto map_it = fFateWeightsMap.find(fate);
    // Get weight given a pdg code.
    if (map_it != fFateWeightsMap.end()) {
      int pdg_target = p->Pdg();
      const auto weight_it = (map_it->second).find(pdg_target);
      if (weight_it != (map_it->second).end()) {
        total_weight *= weight_it->second;
        continue;
      }
    }
    // If fate is not in the pdg map, use default values:
    const auto def_it = fDefaultMap.find(fate);
    if (def_it != fDefaultMap.end()) {
      total_weight *= def_it->second;
    }
  } // end loop over particles

  return total_weight;
}

void CascadeReweight::LoadConfig ( void  )

private

read configuration from xml file

Definition at line 104 of file CascadeReweight.cxx.

                                     {
  bool good_config = true;

  // Clean maps
  fDefaultMap.clear();
  fFateWeightsMap.clear();

  // Create vector with list of possible keys (follows the order of the fates
  // enumeration)
  std::map<INukeFateHN_t, string> EINukeFate_map_keys = GetEINukeFateKeysMap();

  for (map<INukeFateHN_t, string>::iterator it_keys =
           EINukeFate_map_keys.begin();
       it_keys != EINukeFate_map_keys.end(); it_keys++) {
    // Find fate specifications
    std::string to_find_def =
        "CascadeReweight-Default-Weight-" + (it_keys->second);

    auto kdef_list = GetConfig().FindKeys(to_find_def.c_str());
    for (auto kiter = kdef_list.begin(); kiter != kdef_list.end(); ++kiter) {
      const RgKey &key = *kiter;
      double weight;
      GetParam(key, weight);
      // Add check weight > 0
      if (weight < 0) {
        LOG("CascadeReweight", pERROR)
            << "The weight assigned to " << to_find_def << " is not positive";
        good_config = false;
        continue;
      }
      fDefaultMap[it_keys->first] = weight;
    }

    // Find Pdg specifications
    std::string to_find_pdg =
        "CascadeReweight-Weight-" + (it_keys->second) + "@Pdg=";
    auto kpdg_list = GetConfig().FindKeys(to_find_pdg.c_str());
    std::map<int, double> WeightMap; // define map that stores <pdg, weight>
    for (auto kiter = kpdg_list.begin(); kiter != kpdg_list.end(); ++kiter) {
      const RgKey &key = *kiter;
      vector<string> kv = genie::utils::str::Split(key, "=");
      assert(kv.size() == 2);
      int pdg_target = stoi(kv[1]);
      if (!PDGLibrary::Instance()->Find(pdg_target)) {
        LOG("CascadeReweight", pERROR)
            << "The target Pdg code associated to " << to_find_pdg
            << " is not valid : " << pdg_target;
        good_config = false;
        continue;
      }
      double weight;
      GetParam(key, weight);
      // Add check weight > 0
      if (weight < 0) {
        LOG("CascadeReweight", pERROR)
            << "The weight assigned to " << to_find_pdg << " is not positive";
        good_config = false;
        continue;
      }
      // Add pdg and weight in map
      WeightMap.insert(std::pair<int, double>(pdg_target, weight));
    }
    // store information in class member
    fFateWeightsMap[it_keys->first] = std::move(WeightMap);
  }

  if (!good_config) {
    LOG("CascadeReweight", pFATAL) << "Configuration has failed.";
    exit(78);
  }
}

void CascadeReweight::ProcessEventRecord ( GHepRecord *  event_rec ) const

virtual

Implements genie::EventRecordVisitorI.

Definition at line 45 of file CascadeReweight.cxx.

                                                                {
  if (!evrec) {
    LOG("CascadeReweight", pERROR) << "** Null input!";
    return;
  }
  // Get Associated weight
  double weight = GetEventWeight(*evrec);
  // Set weight
  evrec->SetWeight(weight);

  return;
}

Member Data Documentation

std::map< INukeFateHN_t, double > genie::CascadeReweight::fDefaultMap

private

Definition at line 52 of file CascadeReweight.h.

std::map< INukeFateHN_t, map<int,double> > genie::CascadeReweight::fFateWeightsMap

private

Definition at line 53 of file CascadeReweight.h.

---

The documentation for this class was generated from the following files:

• Generator/src/Physics/HadronTransport/CascadeReweight.h
• Generator/src/Physics/HadronTransport/CascadeReweight.cxx