ATO-17 - reset cach matrix and current matrix after dumping to the tree (not before)

[u/mrichter/AliRoot.git] / TPC / Rec / AliTPCtracker.cxx

diff --git a/TPC/Rec/AliTPCtracker.cxx b/TPC/Rec/AliTPCtracker.cxx
index 9324776fef70d39b38b3628575d654611fbac528..770812ca37261d16665fc75a3b553f5d3f890a0c 100644 (file)
--- a/TPC/Rec/AliTPCtracker.cxx
+++ b/TPC/Rec/AliTPCtracker.cxx
@@ -1413,7 +1413,7 @@ void  AliTPCtracker::CalculateXtalkCorrection(){
   // Calculate crosstalk estimate
   //
   const Int_t nROCs   = 72;
-  const Int_t   nIterations=4;  // 
+  const Int_t   nIterations=3;  // 
   // 0.) reset crosstalk matrix 
   //
   for (Int_t isector=0; isector<nROCs*4; isector++){  //set all ellemts of crosstalk matrix to 0 
@@ -1490,15 +1490,6 @@ void  AliTPCtracker::CalculateXtalkCorrection(){
     //
     // copy crosstalk matrix to cached used for next itteration
     //
-    if (iter<nIterations-1) for (Int_t isector=0; isector<nROCs*2; isector++){  //set all ellemts of crosstalk matrix to 0 
-      TMatrixD * crossTalkMatrix = (TMatrixD*)fCrossTalkSignalArray->At(isector);
-      TMatrixD * crossTalkMatrixCache = (TMatrixD*)fCrossTalkSignalArray->At(isector+nROCs*2);
-      if (crossTalkMatrix){
-       (*crossTalkMatrixCache)*=0;
-       (*crossTalkMatrixCache)+=(*crossTalkMatrix);
-       (*crossTalkMatrix)*=0;
-      }
-    }      
     //
     // 2.) dump the crosstalk matrices to tree for further investigation
     //     a.) to estimate fluctuation of pedestal in indiviula wire segments
@@ -1531,6 +1522,15 @@ void  AliTPCtracker::CalculateXtalkCorrection(){
        }
       }
     }
+    if (iter<nIterations-1) for (Int_t isector=0; isector<nROCs*2; isector++){  //set all ellemts of crosstalk matrix to 0 
+      TMatrixD * crossTalkMatrix = (TMatrixD*)fCrossTalkSignalArray->At(isector);
+      TMatrixD * crossTalkMatrixCache = (TMatrixD*)fCrossTalkSignalArray->At(isector+nROCs*2);
+      if (crossTalkMatrix){
+       (*crossTalkMatrixCache)*=0;
+       (*crossTalkMatrixCache)+=(*crossTalkMatrix);
+       (*crossTalkMatrix)*=0;
+      }
+    }      
   }