DREMTubes

A Geant4 simulation of the 2020 Dual-Readout em-sized tubes prototype beam tests.

Fig. - 10 GeV positron passing through the preshower and the dual-readout calorimeter (2 events).

Table of Contents

1. Project description
2. Authors and contacts
3. Documentation and results
   • Selected presentations
4. Available datasets and analyses
5. How to
   • Build, compile and execute on Mac/Linux
   • Build, compile and execute on lxplus
   • Submit a job with HTCondor on lxplus
6. My quick Geant4 installation

Project description

The project targets a standalone Geant4 simulation of the Dual-Readout electromagnetic-sized 2020 tubes prototype beam tests. We plan to perform Geant4 regression testing, physics lists comparison and validation against test-beam data.

• Start date: 7 July 2021.

Authors and contacts

• (CERN EP-SFT) Lorenzo Pezzotti (lorenzo.pezzotti@cern.ch), Alberto Ribon (Supervisor)
• (University of Pavia and INFN Pavia) Jinky Agarwala, Gabriella Gaudio

Documentation and results

Selected presentations

• Dual-Readout Calorimetry Meeting 19/11/2021, Results from the CERN TB Geant4 simulation
• Dual-Readout Calorimetry Meeting 13/10/2021, Status of 2021 Test Beam(s) SW
• Dual-Readout Calorimetry Meeting 21/7/2021, DREMTubes: A Geant4 simulation of the DR tubes prototype 2021 beam tests

Available datasets and analyses

DREMTubes	Reproduce data	Reproduce analysis	Comments
v1.3 Dataset #3 tag 1.3_3 (Geant4.10.07.p01, ATLHECTB v1.3, FTFP_BERT) Added on 26/11/2021	./DREMTubes -m runcards/DREMTubes_run6.mac	No analysis	Run 6 same as Run 5 but with beam spot with 2.0 cm radius.
v1.3 Dataset #2 tag 1.3_2 (Geant4.10.07.p01, ATLHECTB v1.3, FTFP_BERT) Added on 24/11/2021	./DREMTubes -m runcards/DREMTubes_run4.mac ./DREMTubes -m runcards/DREMTubes_run5.mac	No analysis	Run 4 same as Run 3 but with higher statistics, Run 5 same as Run 4 but without preshower.
v1.3 Dataset #1 tag 1.3_1 (Geant4.10.07.p01, ATLHECTB v1.3, FTFP_BERT) Added on 17/11/2021	./DREMTubes -m runcards/DREMTubes_run3.mac	root -l DREMTubesanalysis_v1p3.C	Produced data and results shown in the presentation on 19/11/2021 by Lorenzo. Assuming root files from Geant4 are within run3/ folder as pointed in root macro.

How to

Build, compile and execute on Mac/Linux

1. git clone the repo

   git clone https://github.com/lopezzot/DREMTubes.git

2. source Geant4 env

   source /relative_path_to/geant4.10.07_p01-install/bin/geant4.sh

3. cmake build directory and make (using geant4.10.07_p01)

   mkdir DREMTubes-build; cd DREMTubes-build/
   cmake -DGeant4_DIR=/absolute_path_to/geant4.10.07_p01-install/lib/Geant4-10.7.1/ relative_path_to/DREMTubes/
   make

4. execute (example with DREMTubes_run.mac macro card, 2 thread, FTFP_BERT physics list and no optical propagation)

   ./DREMTubes -m DREMTubes_run.mac -t 2 -pl FTFP_BERT -opt false

Parser options

• -m macro.mac: pass a Geant4 macro card (example -m DREMTubes_run.mac available in source directory and automatically copied in build directory)
• -t integer: pass number of threads for multi-thread execution (example -t 3, default t=2)
• -pl Physics_List: select Geant4 physics list (example -pl FTFP_BERT)
• -opt FullOptic: boolean variable to switch on (true) the optical photon propagation in fibers (example -opt true, default false)

Build, compile and execute on lxplus

1. git clone the repo

   git clone git clone https://github.com/lopezzot/DREMTubes.git

2. cmake, build directory and make (using geant4.10.07_p01, check for gcc and cmake dependencies for other versions)

   mkdir DREMTubes-build; cd DREMTubes-build/
   source /cvmfs/sft.cern.ch/lcg/contrib/gcc/8.3.0/x86_64-centos7/setup.sh 
   source /cvmfs/geant4.cern.ch/geant4/10.7.p01/x86_64-centos7-gcc8-optdeb-MT/CMake-setup.sh 
   export CXX=`which g++`
   export CC=`which gcc`
   cmake3 -DGeant4_DIR= /cvmfs/geant4.cern.ch/geant4/10.7.p01/x86_64-centos7-gcc8-optdeb-MT/lib64/Geant4-10.7.1 ../../DREMTubes/
   make

3. execute (example with DREMTubes_run.mac macro card, 2 threads and FTFP_BERT physics list)

   ./DREMTubes -m DREMTubes_run.mac -t 2 -pl FTFP_BERT

Submit a job with HTCondor on lxplus

1. git clone the repo

   git clone https://github.com/lopezzot/DREMTubes.git

2. prepare execution files (example with Geant4.10.07_p01, DREMTubes_run.mac, 2 threads, FTFP_BERT physics list)

   mkdir DREMTubes-build; cd DREMTubes-build
   mkdir error log output
   cp ../../DREMTubes/scripts/DREMTubes_lxplus_10.7.p01.sh .
   source DREMTubes_lxplus_10.7.p01.sh

3. prepare for HTCondor submission (example with Geant4.10.07_p01, DREMTubes_run.mac, 2 threads, FTFP_BERT physics list)

   cp ../../DREMTubes/scripts/DREMTubes_HTCondor_10.7.p01.sh .
   export MYHOME=`pwd`
   echo cd $MYHOME >> DREMTubes_HTCondor_10.7.p01.sh
   echo $MYHOME/DREMTubes -m $MYHOME/DREMTubes_run.mac -t 2 >> DREMTubes_HTCondor_10.7.p01.sh
   cp ../../DREMTubes/scripts/DREMTubes_HTCondor.sub .
   sed -i '1 i executable = DREMTubes_HTCondor_10.7.p01.sh' DREMTubes_HTCondor.sub

4. submit a job

   condor_submit DREMTubes_HTCondor.sub 

5. monitor the job

   condor_q

   or (for persistency)

   condor_wait -status log/*.log

My quick Geant4 installation

Here is my standard Geant4 installation (example with Geant4.10.7.p01) starting from the unpacked geant4.10.07.tar.gz file under the example path "path/to".

1. create build directory alongside source files

   cd /path/to
   mkdir geant4.10.07-build
   cd geant4.10.07-build

2. link libraries with CMAKE (example with my favourite libraries)

   cmake -DCMAKE_INSTALL_PREFIX=/Users/lorenzo/myG4/geant4.10.07_p01-install \
   -DGEANT4_INSTALL_DATA=ON -DGEANT4_USE_QT=ON -DGEANT4_BUILD_MULTITHREADED=ON \
   -DGEANT4_USE_GDML=ON ../geant4.10.07.p01

3. make it

   make -jN
   make install