Computing Basics for DUNE - Revised 2025 edition: 2025 Example AL9 setup for a new session

You can store the code below as myal9.sh and run it every time you log in.

Note - the full LArSoft suite doesn’t work yet with spack

Use the Apptainer/sl7 method until we get larsoft working if you want to use the full DUNE software suite.

# find a spack environment and set it up
# setup spack  (pre spack 1.0 version)

source /cvmfs/larsoft.opensciencegrid.org/spack-v0.22.0-fermi/setup-env.sh

# get the packages you need to run this - this will become simple in future
echo "ROOT"
spack load root@6.28.12%gcc@12.2.0 arch=linux-almalinux9-x86_64_v3

echo "CMAKE"
spack load cmake@3.27.9%gcc@11.4.1 arch=linux-almalinux9-x86_64_v3

echo "GCC"
spack load gcc@12.2.0

echo "Rucio and metacat"
spack load r-m-dd-config experiment=dune lab=fnal.gov
export RUCIO_ACCOUNT=${USER}
export SAM_EXPERIMENT=dune

echo "IFDHC"
spack load ifdhc@2.8.0%gcc@12.2.0 arch=linux-almalinux9-x86_64_v3
spack load ifdhc-config@2.6.20%gcc@11.4.1 arch=linux-almalinux9-x86_64_v3


echo "PY-PIP"                       
spack load py-pip@23.1.2%gcc@11.4.1 arch=linux-almalinux9-x86_64_v3

echo "justIN"
spack load justin

You can ignore most warning messages - this is still under development - but pay attention to this one.

Note

You may see a rucio config error message that looks like this

==> Warning: Your rucio config /nashome/X/XXXXX/.config/rucio/dune/etc/rucio.cfg does not list oidc authentication
If you remove it and spack load r-m-dd-config again it will get regenerated with oidc (Token) authentication

This happens if you’ve run older versions of rucio that used kx509 authentication. Remove $HOME/.config/rucio/dune/etc/rucio.cfg as it advises and rerun the spack load r-m-dd-config command to reset the config file. You should not need to do this again.