Development Page - ComputeCanada/ahep_interactive_analysis_facility GitHub Wiki

Current status

VM and System Setup

• Access OpenStack at https://arbutus.cloud.computecanada.ca/
• Created a minimal Ubuntu v20 instance following instructions at https://docs.computecanada.ca/wiki/Cloud_Quick_Start ( smallest image )
• The virtual machine can now be accessed through the public URL provided the SSH key pairs are added.

Setting up CVMFS

• Setting up CVMFS following Ryan suggestion: https://cvmfs.readthedocs.io/en/stable/cpt-quickstart.html
• and https://docs.computecanada.ca/wiki/Accessing_CVMFS

wget https://package.computecanada.ca/yum/cc-cvmfs-public/prod/other/cvmfs-config-computecanada-latest.all.deb sudo dpkg -i cvmfs-config-computecanada-latest.all.deb

• Setting CVMFS_HTTP_PROXY="http://cvmfs-cache.arbutus.cloud.computecanada.ca:3128;DIRECT"
• Currently has access to soft.computecanada.ca and larsoft.openscience.ca

Setting up Coffea on virtual machine:

• I'm setting up the software environment using the CC stack, since all I need are ROOT and scipy/numpy/etc
• Create a virtual environment ** Before doing that, activate a virtual environment following: https://docs.computecanada.ca/wiki/Python#Creating_and_using_a_virtual_environment ** However this doesn't work, giving no disk space error.
• Download and compile coffea following https://coffeateam.github.io/coffea/installation.html

Creating Nanoevent for proto_dune files

• NanoEvent schema created with capability to zip objects
• Codes at https://github.com/tejinc/coffea/tree/dune_dev
• Still need to refine the naming convention, but this is a version that works.