LArAutoCorrTotalCondAlg.cxx

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/*
   Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/
 
#include "LArAutoCorrTotalCondAlg.h"
#include "LArRawConditions/LArAutoCorrTotal.h"
 
#include "LArElecCalib/LArConditionsException.h"
 
#include "LArIdentifier/LArOnlineID.h"
#include "LArIdentifier/LArOnline_SuperCellID.h"
 
#include "LArRawConditions/LArAutoCorrComplete.h"
 
 
LArAutoCorrTotalCondAlg::~LArAutoCorrTotalCondAlg() {}
 
StatusCode LArAutoCorrTotalCondAlg::initialize() {
  ATH_MSG_DEBUG("initialize " << name());
 
  // ReadCondHandle initialization
  ATH_CHECK(m_LArShapeObjKey.initialize());
  ATH_CHECK(m_LArAutoCorrObjKey.initialize());
  ATH_CHECK(m_LArOnOffIdMappingObjKey.initialize());
  ATH_CHECK( m_LArADC2MeVObjKey.initialize());
 
  ATH_CHECK(m_LArAutoCorrTotalObjKey.initialize());
 
  ATH_CHECK(m_LArNoiseObjKey.initialize(!m_NoPile && m_isMC));
  ATH_CHECK(m_LArPedestalObjKey.initialize(!m_NoPile && !m_isMC));
  ATH_CHECK(m_LArfSamplObjKey.initialize(!m_NoPile));
  ATH_CHECK(m_LArMinBiasObjKey.initialize(!m_NoPile));
 
  // Supercells have only one gain
  if (m_isSuperCell) {
    m_nGains = 1;
  }
 
  ATH_MSG_DEBUG("settings: m_NoPile " << m_NoPile);
  return StatusCode::SUCCESS;
}
 
StatusCode LArAutoCorrTotalCondAlg::execute(const EventContext& ctx) const {
 
  // WriteHandle setup
  SG::WriteCondHandle<LArAutoCorrTotal> writeHandle(m_LArAutoCorrTotalObjKey, ctx);
  // So the following should not be called usually?!
  if (writeHandle.isValid()) {
    ATH_MSG_DEBUG(
        "CondHandle "
        << writeHandle.fullKey() << " is already valid.");
    return StatusCode::SUCCESS;
  }
 
  // Identifier helper
  const LArOnlineID_Base *larOnlineID = nullptr;
  if (m_isSuperCell) {
    const LArOnline_SuperCellID *scidhelper;
    ATH_CHECK(detStore()->retrieve(scidhelper, "LArOnline_SuperCellID"));
    larOnlineID = scidhelper; // cast to base-class
  } else {                    // regular cells
    const LArOnlineID *idhelper;
    ATH_CHECK(detStore()->retrieve(idhelper, "LArOnlineID"));
    larOnlineID = idhelper; // cast to base-class
  }
  // Mapping helper
  const LArOnOffIdMapping *larOnOffIdMapping = nullptr;
  SG::ReadCondHandle<LArOnOffIdMapping> larOnOffIdMappingHdl{
    m_LArOnOffIdMappingObjKey, ctx
  };
  larOnOffIdMapping = *larOnOffIdMappingHdl;
  if (larOnOffIdMapping == nullptr) {
    ATH_MSG_ERROR("Failed to retrieve LArOnOffIdMapping object");
  }
 
  // Get pointers to inputs
  SG::ReadCondHandle<ILArShape> ShapeHdl{ m_LArShapeObjKey, ctx };
  // FIXME: should check if handle is properly created and/or check if handle is
  // properly retrieved
  // operator star of a ReadCondHandle returns a const pointer to type T
  const ILArShape *larShape{ *ShapeHdl };
  writeHandle.addDependency(ShapeHdl);
 
  SG::ReadCondHandle<ILArAutoCorr> AutoCorrHdl{ m_LArAutoCorrObjKey, ctx };
  const ILArAutoCorr *larAutoCorr{ *AutoCorrHdl };
  writeHandle.addDependency(AutoCorrHdl);
 
  SG::ReadCondHandle<LArADC2MeV> ADC2MeVHdl{ m_LArADC2MeVObjKey, ctx };
  const LArADC2MeV *larADC2MeV = nullptr;
  larADC2MeV = *ADC2MeVHdl;
  if (larADC2MeV == nullptr) {
    ATH_MSG_ERROR("Failed to retrieve LArADC2MeV object");
    return StatusCode::FAILURE;
  }
  writeHandle.addDependency(ADC2MeVHdl);
 
  // Consider the determinstic objects
  // checking isMC and NoPile again seems very clumsy. How to check if key has
  // already been initialized?
  const ILArNoise *larNoise = nullptr;
  const ILArPedestal *larPedestal = nullptr;
  const ILArfSampl *larfSampl = nullptr;
  const ILArMinBias *larMinBias = nullptr;
 
  if (!m_NoPile) {
    if (m_isMC) {
      SG::ReadCondHandle<ILArNoise> NoiseHdl{ m_LArNoiseObjKey, ctx };
      larNoise = *NoiseHdl;
      writeHandle.addDependency(NoiseHdl);
    } else {
      SG::ReadCondHandle<ILArPedestal> PedestalHdl{ m_LArPedestalObjKey, ctx };
      larPedestal = *PedestalHdl;
      writeHandle.addDependency(PedestalHdl);
    }
 
    SG::ReadCondHandle<ILArfSampl> fSamplHdl{ m_LArfSamplObjKey, ctx };
    larfSampl = *fSamplHdl;
    writeHandle.addDependency(fSamplHdl);
 
    SG::ReadCondHandle<ILArMinBias> MinBiasHdl{ m_LArMinBiasObjKey, ctx };
    larMinBias = *MinBiasHdl;
    writeHandle.addDependency(MinBiasHdl);
  }
 
  ATH_MSG_INFO("IOV found from intersection for AutoCorrTotal object: "
               << writeHandle.getRange());
 
  // make output object
  // dimensions: number of gains x number of channel IDs x elements of
  // AutoCorrTotal
  std::unique_ptr<LArAutoCorrTotal> larAutoCorrTotal =
      std::make_unique<LArAutoCorrTotal>(larOnlineID, larOnOffIdMapping, m_nGains);
 
  int count = 0;
  int count2 = 0;
  int count3 =0;
 
  for (const HWIdentifier chid : larOnlineID->channel_range()) {
    count++;
    const IdentifierHash hid = larOnlineID->channel_Hash(chid);
    // const unsigned int id32 = chid.get_identifier32().get_compact();
 
    if (larOnOffIdMapping->isOnlineConnected(chid)) {
        count2++;
 
      for (size_t igain = 0; igain < m_nGains; igain++) {
        const ILArShape::ShapeRef_t Shape = larShape->Shape(chid, igain);
        const int nsamples_shape = static_cast<int>(Shape.size());
 
        const ILArAutoCorr::AutoCorrRef_t AC =
            larAutoCorr->autoCorr(chid, igain);
 
    if (AC.size() == 0) {
      ATH_MSG_INFO("No ElecCalib AC for channel " << larOnlineID->channel_name(chid) << ", gain "<<igain << ". Skip.");
      continue;
    }
        
    count3++;
        int nsamples_AC_OFC = AC.size() + 1;
 
        if (nsamples_AC_OFC > m_Nsamples) {
          nsamples_AC_OFC = m_Nsamples;
        }
 
        // fix HEC first sample +1 if the firstSample is 0 and nsamples 4
        unsigned int ihecshift = 0;
        if (larOnlineID->isHECchannel(chid) && nsamples_AC_OFC == 4 &&
            m_firstSample == 0) {
          ihecshift = 1;
          // ATH_MSG_DEBUG( "Using firstSample +1 for HEC ChID 0x" << MSG::hex
          // << id << MSG::dec  );
        }
 
        //:::::::::::::::::::::::::::::::
        // NB:
        // nsamples_shape    = number of samples of the Shape function (e.g 32)
        // nsamples_AC_OFC = size of AC matrix & OFC vector (e.g 5 in Atlas)
        //:::::::::::::::::::::::::::::::
        float fSigma2 = 0.;
        if (!m_NoPile) {
          float SigmaNoise;
          if (m_isMC)
            SigmaNoise = larNoise->noise(chid, igain);
          else {
            float RMSpedestal = larPedestal->pedestalRMS(chid, igain);
            if (RMSpedestal > (1.0 + LArElecCalib::ERRORCODE))
              SigmaNoise = RMSpedestal;
            else
              SigmaNoise = 0.; //(we will have the ERROR message below)
          }
          float fSampl = larfSampl->FSAMPL(chid);
          float MinBiasRMS = larMinBias->minBiasRMS(chid);
          if (fSampl != 0)
            MinBiasRMS /= fSampl;
          const auto polynom_adc2mev =
              larADC2MeV->ADC2MEV(hid, igain);
          float Adc2MeV = 0.;
          if (polynom_adc2mev.size() > 0) {
            Adc2MeV = (polynom_adc2mev)[1];
          }
          if (SigmaNoise != 0 && Adc2MeV != 0)
            fSigma2 = pow(MinBiasRMS / (SigmaNoise * Adc2MeV), 2);
 
          if (fSampl == 0 || SigmaNoise == 0 || Adc2MeV == 0) {
            if (m_isMC) {
              ATH_MSG_ERROR(larOnlineID->show_to_string(
                                larOnOffIdMapping->cnvToIdentifier(chid))
                            << "fSampl (" << fSampl << "), SigmaNoise ("
                            << SigmaNoise << ") or Adc2MeV (" << Adc2MeV
                            << ") null "
                            << "=> AutoCorrTotal = only AutoCorr elect. part ");
            }
            fSigma2 = 0.;
          }
           ATH_MSG_DEBUG(chid.get_identifier32().get_compact()
                                            << ")  fSampl (" << fSampl << ") "
                                            << ")  SigmaNoise (" << SigmaNoise << ") "
                                            << ")  Adc2MeV (" << Adc2MeV << ") "
 
                        );
 
          // warning: MinBiasRMS is in MeV (at the scale of the hits)
          //         SigmaNoise is in ADC counts
          //  so MinBiasRMS/fScale and SigmaNoise*Adc2MeV are the same scale
          //  (MeV at the scale of the cells)
        } // end if m_NoPile
 
        // get in vTerms all the possible non trivial N(N-1)/2 terms of the
        // autocorrelation matrix
        int nsize_tot = (nsamples_AC_OFC - 1) * (nsamples_AC_OFC) / 2;
 
        ATH_MSG_DEBUG(chid.get_identifier32().get_compact()
                                          << ")  fSigma2 (" << fSigma2 << ") "
                                          << ")  nsamples_AC_OFC ( " << nsamples_AC_OFC);
        std::vector<float> vTerms;
 
        vTerms.resize(2 * nsize_tot + nsamples_AC_OFC, 0.);
        //:::::::::::::::::::::::::::::::
 
        for (int j1 = 0; j1 < nsamples_AC_OFC - 1; j1++) {
          for (int j2 = j1 + 1; j2 < nsamples_AC_OFC; j2++) {
            int l = abs(j2 - j1) - 1;
            int index =
                j1 * nsamples_AC_OFC - j1 * (j1 + 1) / 2 + j2 - (j1 + 1);
            vTerms[index] = AC[l];
          }
        }
 
        ATH_MSG_DEBUG(chid.get_identifier32().get_compact()
                                          << ")  vTerms[1] (" << vTerms[1] << ") ");
        // 2nd terms :
        for (int j1 = 0; j1 < nsamples_AC_OFC - 1; ++j1) {
          for (int j2 = j1 + 1; j2 < nsamples_AC_OFC; j2++) {
            int index =
                j1 * nsamples_AC_OFC - j1 * (j1 + 1) / 2 + j2 - (j1 + 1);
            float Rij = 0;
            for (int k = 0; k < nsamples_shape; ++k) {
              if ((j2 - j1 + k) >= 0 && (j2 - j1 + k) < nsamples_shape) {
                int ibunch = 0;
                if ((j1 + m_firstSample + ihecshift - k) % m_deltaBunch == 0)
                  ibunch = 1;
                Rij += Shape[k] * Shape[j2 - j1 + k] * ibunch;
              }
            }
            vTerms[nsize_tot + index] = fSigma2 * Rij;
          }
        }
        ATH_MSG_DEBUG(chid.get_identifier32().get_compact()
                                          << ")  vTerms[mid] (" << vTerms[vTerms.size()/2] << ") ");
 
        // 3rd term : RMS of pileup per samples (multiplied by fSigma2)
        for (int j1 = 0; j1 < nsamples_AC_OFC; j1++) {
          float Rms2i = 0;
          for (int k = 0; k < nsamples_shape; ++k) {
            int ibunch = 0;
            if ((j1 + m_firstSample + ihecshift - k) % m_deltaBunch == 0)
              ibunch = 1;
            Rms2i += pow(Shape[k], 2) * ibunch;
          }
          vTerms[2 * nsize_tot + j1] = fSigma2 * Rms2i;
        }
        ATH_MSG_DEBUG(chid.get_identifier32().get_compact()
                                          << ")  vTerms[last] (" << vTerms[vTerms.size()-1] << ") ");
 
 
        // storage
        larAutoCorrTotal->set(hid, igain, vTerms);
 
      } //(loop on gains)
 
    } else // unconnected
      for (unsigned int igain = 0; igain < m_nGains; igain++) {
        unsigned nsize_tot = (m_Nsamples - 1) * (m_Nsamples) + m_Nsamples;
        std::vector<float> empty(nsize_tot, 0.);
        larAutoCorrTotal->set(hid, igain, empty);
      }
  }
 
  ATH_MSG_INFO("LArAutoCorrTotal Ncell " << count);
  ATH_MSG_INFO("LArAutoCorrTotal Ncell * Ngain " << count3);
  ATH_MSG_INFO("LArAutoCorrTotal Nconnected " << count2);
 
  ATH_MSG_INFO("LArAutoCorrTotal record with key" << m_LArAutoCorrTotalObjKey);
 
  ATH_CHECK(writeHandle.record(std::move(larAutoCorrTotal)));
 
 
  return StatusCode::SUCCESS;
}