cernPD2025

Setup ProtoDUNE software

Once I activate sl7 container, do the following.

export UPS_OVERRIDE="-H Linux64bit+3.10-2.17"
source /cvmfs/dune.opensciencegrid.org/products/dune/setup_dune.sh
setup dunesw v10_03_01d02 -q e26:prof

Geant4 stage with GeGeDe GDML file

The V5 ProtoDUNE-VD geometry GDML file was constructed using GeGeDe (General Geometry Description), a Python-based software. In gen.fcl file, we add:

services.AuxDetGeometry.GDML: "protodunevd_v5_refactored.gdml"
services.AuxDetGeometry.Name: "protodunevd_v5"

services.Geometry.GDML: "protodunevd_v5_refactored.gdml"
services.Geometry.Name: "protodunevd_v5"
services.Geometry.ROOT: "protodunevd_v5_refactored.gdml"

Then in g4.fcl, the next step after generator, we add:

services.AuxDetGeometry.GDML: "protodunevd_v5_refactored.gdml"
services.AuxDetGeometry.Name: "protodunevd_v5"

services.Geometry.GDML: "protodunevd_v5_refactored.gdml"
services.Geometry.Name: "protodunevd_v5"
services.Geometry.ROOT: "protodunevd_v5_refactored.gdml"

services.LArG4Detector.gdmlFileName_: "protodunevd_v5_refactored.gdml"

Setup VNC server for ProtoDUNE-VD event display

In the first time we login, it may ask us to set a password for connection.

Initial VNC password

kinit -f -7d [email protected]
ssh -AKXY [email protected]
source ~/setup2025VNC.sh
exit

Once exit this login, open a new terminal window and in the $HOME/.ssh/config or $HOME/.ssh/ssh_config, and paste the following:

Host dunegpvm??
  HostName %h.fnal.gov
  User username
  ForwardAgent yes
  ForwardX11 yes
  ForwardX11Trusted yes
  GSSAPIAuthentication yes
  GSSAPIDelegateCredentials yes
  LocalForward 5901 localhost:XXXXX

Then exit the window.

Build the VNC session

In a new window, do

ssh -Y dunegpvm09
source ~/setup2025VNC.sh
dunesl7
export UPS_OVERRIDE="-H Linux64bit+3.10-2.17"
source /cvmfs/dune.opensciencegrid.org/products/dune/setup_dune.sh
source ~/setup2025VNC.sh
exit

Now we should in dunegpvm09 and out of sl7 container. Use vncserver -list to check if we setup the VNC session as we want.

Local connection to VNC session

In a local terminal, do

open vnc://localhost:5901

Do not logout the AL9 from the upper right corner, but close connection in the upper left APP Quit Screen Sharing.

And in dunegpvm09, use kill -9 to end the VNC session.