Ok, now I copied all files to CERN cluster (lxplus7.cern.ch) where CentOS 7 is running. I used ROOT v6.16.00 by doing ‘. /cvmfs/sft.cern.ch/lcg/app/releases/ROOT/6.16.00/x86_64-centos7-gcc48-opt/bin/thisroot.sh’
By the time I post this, the macro is still in the process of looping over events (at ~7million), but here is the current seen output: Valgrind_Message_Summary_ROOT_v6.16_00.txt (621.5 KB)
I can see there are still many spurious valgrind warnings, but are there any hints from your perspective?