Tutorial for DAMPE Analysis

[toc]

0. Preface

use of Visual Studio Code We strongly discourage the use of VSCode as a remote editor. The VSCode server application, that is always and surreptitiously installed on the remote servers, consumes a significant amount of RAM, swap, and home disk memory (du -hsx ~/.vscode-server) on the remote machine, leading to slowness, performance issues, and even malfunctions impeding the work of other users.

Step 0. Ask supervisor to add you to the mailing list of DAMPE and ask for the permission to the DAMPE Twiki

mailing list

DAMPE Twiki

Step 1. https://www.ac.infn.it/associazioni/PaginaPubblicaAssociazioni/index.html

Sign Up → IoA1 → User Portal → Identical Verification via web meeting and upload your password → loA2 → E-Learning Course (Network Security) → Passed → Gestione Associazioni → Affiliation Process and Sign Contract

Step 2. EDH-account for CERN

Supervisor approve → pre-registration → E-Learning Course (Network Security) → Passed

Step 3. CNAF-INFN account https://www.cnaf.infn.it/en/users-faqs/

Fill the form → Get your reference person in CNAF → submission

Usefull Shortcuts

PMO Indico Page
DMPSW code info (user:tutorial, pwd:tutorial)
DAMPE Twiki - home (reference for any doubt)
SimulationGroup info DAMPE CR nuclei MC production
- MC Statistics
- [Shift] (https://docs.google.com/spreadsheets/d/1khi1yaOGAAdarkfonenVrifoB40HFYax7ghw7gN2qos/edit?gid=1049189058#gid=1049189058)
DAMPE publications

1. Build your workflow

Windows: MobaXterm (Terminal), VSCode

MacOS (Apple Silicon): Terminal, VSCode

Build VsCode workflow

Step1. Go to the path /username/.ssh

cd /username/.ssh

Step2. Create the public key and private key via the command in the Terminal (Windows or Mac)

# /username/.ssh
ssh-keygen

This command will produce the public key XXX.pub and the private key xxx. The private key you should key by yourself, and the public key you could distribute it to others, such as the remote computation farm we login. ! Generating public/private ed25519 key pair !

Step3. Create a file name config under the path /username/.ssh and save it.

# /username/.ssh/config

Host bastion 
    HostName bastion.cnaf.infn.it
    User xiongzheng
    IdentityFile ~/.ssh/xxx # private key
    ForwardX11 yes
    ForwardX11Trusted yes

Host cnaf-dampe
    HostName ui-tier1.cr.cnaf.infn.it
    ProxyCommand ssh bastion -W %h:%p
    User xiongzheng
    IdentityFile ~/.ssh/xxx # private key
    ForwardX11 yes
    ForwardX11Trusted yes

Host dampe-workflow
    HostName dampevm1.unige.ch
    ProxyCommand ssh cnaf-dampe -W %h:%p
    User workflow
    IdentityFile ~/.ssh/xxx # private key
    ForwardX11 yes
    ForwardX11Trusted yes

Step5. login the farm and save the content of public key xxx.pub under the file ~/.ssh/authorized_key. Then change the mode of the path ~/.ssh/ and file ~/.ssh/authorized_key

chmod 700 ~/.ssh
chmod 600 ~/.ssh/authorized_key

The order of dealing with the farms:

bastion.cnaf.infn.it
ui-tier1.cr.cnaf.infn.it
dampevm1.unige.ch

Build Termial Workflow

local,bastion, and cnaf-dampe hosts generate public and private keys using ssh-keygen.

The public key authentication chain is as follows:

Add local’s public key to the ~/.ssh/authorized_keys file on host bastion.
Add bastion’s public key to the ~/.ssh/authorized_keys file on host cnaf-dampe.
Add cnaf-dampe’s public key to the ~/.ssh/authorized_keys file on host dampe-workflow.

Done.

Design of Data Structure

B4.root
├─particleName (1-proton, 2-deurteron)
├─energy (Mev)
├─Layer0 E dep(MeV)
├─Layer1 E dep(MeV)
├─...
├─Layer13 E dep(MeV)
├─Total E dep(MeV)
├─Layer0 Track Length(mm)
├─Layer1 Track Length(mm)
├─...
├─Layer13 Track Length(mm)
├─Total Track Length(mm)
├─First_Depth (mm)
├─First_Layer 
├─First_Type (0-electromagntic, 1-hadronic, 3-others)
└─First_Second (number of Secondaries)

        |<----layer 0---------->|<----layer 1---------->|<----layer 2---------->|
        |                       |                       |                       |
        ==========================================================================
        ||              |       ||              |       ||              |       ||
        ||              |       ||              |       ||              |       ||
 beam   ||   absorber   |  gap  ||   absorber   |  gap  ||   absorber   |  gap  ||
======||              |       ||              |       ||              |       ||
        ||              |       ||              |       ||              |       ||
        ==========================================================================

Geant4 manual installation on macOS

http://geant4-dna.in2p3.fr/styled-6/styled-12/index.html

Cmake command to build

cmake -DCMAKE_INSTALL_PREFIX=/Users/xiongzheng/software/build/geant4-v11.3.0-install -DCMAKE_BUILD_TYPE=RelWithDebInfo -DGEANT4_USE_GDML=ON -DXERCESC_ROOT_DIR=/opt/homebrew/opt/xerces-c -DGEANT4_USE_QT=ON -DGEANT4_INSTALL_EXAMPLES=ON -DGEANT4_INSTALL_DATA=ON -DGEANT4_USE_SYSTEM_EXPAT=OFF -DGEANT4_BUILD_TLS_MODEL=auto ../geant4

rm -rf build CMakeCache.txt CMakeFiles
mkdir build
cd build
comp ..
make -j10

X. Reference

[1] https://confluence.infn.it/spaces/TD/pages/40665299/INFN-CNAF+Tier-1+User+Guide+July+2024+-+v19

[2] http://afsapply.ihep.ac.cn/cchelp/zh/

[3] https://www.cnaf.infn.it/~usersupport/XrootD_SA.html

[4] https://code.visualstudio.com/blogs/2019/10/03/remote-ssh-tips-and-tricks