HitWireProject

Project Structure

• src/ — All C++ source (.cpp) files
• include/ — All C++ header (.hpp) files
• build/ — Build artifacts
• CMakeLists.txt — Build configuration
• README.md — This file

Prerequisites

For scisoftbuild02

1. Install ROOT using spack:

   # Install spack if not already available
   # Then install ROOT
   spack install root

2. Set up environment:

   source ~/spack/share/spack/setup-env.sh
   spack load root
   spack load vdt
   
   # Make the headers visible to the compiler invoked by cmake/rootcling
   export CPATH="$(spack location -i vdt)/include:${CPATH}"
   
   # (optional if you'll link against libvdt at runtime too)
   export LIBRARY_PATH="$(spack location -i vdt)/lib:${LIBRARY_PATH}"
   export LD_LIBRARY_PATH="$(spack location -i vdt)/lib:${LD_LIBRARY_PATH}"

How to Build

Complete Build and Test Process (scisoftbuild02)

cd RNTuple-I-O-Config && \
rm -rf build && \
mkdir build && \
cd build && \
cmake .. && \
make && \
./tests/gen_test_rootfile && \
ctest -R test_split_range_by_clusters --output-on-failure && \
echo "Started at: $(date)" | tee ../experiments/log.txt && \
./hitwire 2>&1 | tee -a ../experiments/log.txt && \
rm -rf build && \
cd .. && cd ..

Configuration

The project now uses centralized configuration parameters in main.cpp:

• numEvents: Number of events to process
• hitsPerEvent: Number of hits per event
• wiresPerEvent: Number of wires per event
• roisPerWire: Number of ROIs per wire
• numSpills: Number of spills
• kOutputDir: Output directory for ROOT files

Output

ROOT files are generated in the configured output directory with the following naming convention:

• AOS (Array of Structs): aos_event_*.root, aos_spill_*.root, etc.
• SOA (Struct of Arrays): soa_event_*.root, soa_spill_*.root, etc.