[PWGHF] Reserve memory before filling charm femto tables (AliceO2Group#16671)

Author: fgrosa

PWGHF/HFC/TableProducer/producerCharmHadronsTrackFemtoDream.cxx

@@ -621,6 +621,14 @@ struct HfProducerCharmHadronsTrackFemtoDream {
     bool isSelectedMlD0barToKPi = true;
     bool isSelectedMlDstarToD0Pi = true;
 
+    if constexpr (Channel == DecayChannel::DplusToPiKPi || Channel == DecayChannel::LcToPKPi) {
+      rowCandCharm3Prong.reserve(rowCandCharm3Prong.lastIndex() + sizeCand * 2 + 1);
+    } else if constexpr (Channel == DecayChannel::D0ToPiK) {
+      rowCandCharm2Prong.reserve(rowCandCharm2Prong.lastIndex() + sizeCand * 2 + 1);
+    } else if constexpr (Channel == DecayChannel::DstarToD0Pi) {
+      rowCandCharmDstar.reserve(rowCandCharmDstar.lastIndex() + sizeCand + 1);
+    }
+
     for (const auto& candidate : candidates) {
       outputMlD0 = {-1.0f, -1.0f, -1.0f};
       outputMlD0bar = {-1.0f, -1.0f, -1.0f};
@@ -894,7 +902,7 @@ struct HfProducerCharmHadronsTrackFemtoDream {
   void fillCharmHadMcGen(ParticleType particles)
   {
     // Filling particle properties
-    rowCandCharmHadGen.reserve(particles.size());
+    rowCandCharmHadGen.reserve(particles.size() + 1);
     if constexpr (Channel == DecayChannel::DplusToPiKPi) {
       for (const auto& particle : particles) {
         if (std::abs(particle.flagMcMatchGen()) == hf_decay::hf_cand_3prong::DecayChannelMain::DplusToPiKPi) {

PWGHF/HFC/TableProducer/producerCharmHadronsV0FemtoDream.cxx

@@ -722,6 +722,14 @@ struct HfProducerCharmHadronsV0FemtoDream {
       return;
     }
 
+    if constexpr (Channel == DecayChannel::DplusToPiKPi || Channel == DecayChannel::LcToPKPi) {
+      rowCandCharm3Prong.reserve(rowCandCharm3Prong.lastIndex() + sizeCand * 2 + 1);
+    } else if constexpr (Channel == DecayChannel::D0ToPiK) {
+      rowCandCharm2Prong.reserve(rowCandCharm2Prong.lastIndex() + sizeCand * 2 + 1);
+    } else if constexpr (Channel == DecayChannel::DstarToD0Pi) {
+      rowCandCharmDstar.reserve(rowCandCharmDstar.lastIndex() + sizeCand + 1);
+    }
+
     outputCollision(vtxZ, mult, multNtr, spher, magField);
     if constexpr (IsMc) {
       fillMcCollision(col);
@@ -1124,7 +1132,7 @@ struct HfProducerCharmHadronsV0FemtoDream {
   void fillCharmHadMcGen(ParticleType particles)
   {
     // Filling particle properties
-    rowCandCharmHadGen.reserve(particles.size());
+    rowCandCharmHadGen.reserve(particles.size() + 1);
     if constexpr (Channel == DecayChannel::DplusToPiKPi) {
       for (const auto& particle : particles) {
         if (std::abs(particle.flagMcMatchGen()) == hf_decay::hf_cand_3prong::DecayChannelMain::DplusToPiKPi) {

PWGHF/HFC/Tasks/taskCharmHadronsV0FemtoDream.cxx

@@ -752,8 +752,11 @@ struct HfTaskCharmHadronsV0FemtoDream {
 
   void processDataLcV0(FilteredCollisions const& cols,
                        FDV0Particles const& parts,
-                       FilteredCharmCand3Prongs const&)
+                       FilteredCharmCand3Prongs const& candidates)
   {
+
+    rowFemtoResultCharm3Prong.reserve(candidates.size() + 1);
+
     for (const auto& col : cols) {
       eventHisto.fillQA(col);
       auto sliceCharmHad = partitionCharmHadron3Prong->sliceByCached(aod::femtodreamparticle::fdCollisionId, col.globalIndex(), cache);
@@ -784,8 +787,10 @@ struct HfTaskCharmHadronsV0FemtoDream {
 
   void processDataDplusV0(FilteredCollisions const& cols,
                           FDV0Particles const& parts,
-                          FilteredCharmCand3Prongs const&)
+                          FilteredCharmCand3Prongs const& candidates)
   {
+    rowFemtoResultCharm3Prong.reserve(candidates.size() + 1);
+
     for (const auto& col : cols) {
       eventHisto.fillQA(col);
       auto sliceCharmHad = partitionCharmHadron3Prong->sliceByCached(aod::femtodreamparticle::fdCollisionId, col.globalIndex(), cache);
@@ -816,8 +821,10 @@ struct HfTaskCharmHadronsV0FemtoDream {
 
   void processDataD0V0(FilteredCollisions const& cols,
                        FDV0Particles const& parts,
-                       FilteredCharmCand2Prongs const&)
+                       FilteredCharmCand2Prongs const& candidates)
   {
+    rowFemtoResultCharm2Prong.reserve(candidates.size() + 1);
+
     for (const auto& col : cols) {
       eventHisto.fillQA(col);
       auto sliceCharmHad = partitionCharmHadron2Prong->sliceByCached(aod::femtodreamparticle::fdCollisionId, col.globalIndex(), cache);
@@ -848,8 +855,11 @@ struct HfTaskCharmHadronsV0FemtoDream {
 
   void processDataDstarV0(FilteredCollisions const& cols,
                           FDV0Particles const& parts,
-                          FilteredCharmCandDstars const&)
+                          FilteredCharmCandDstars const& candidates)
   {
+
+    rowFemtoResultCharmDstar.reserve(candidates.size() + 1);
+
     for (const auto& col : cols) {
       eventHisto.fillQA(col);
       auto sliceCharmHad = partitionCharmHadronDstar->sliceByCached(aod::femtodreamparticle::fdCollisionId, col.globalIndex(), cache);