• KAGRA
• Subgroups
• DET
• aligoNB

aligoNB for KAGRA

• The original aligoNB is developed on https://git.ligo.org/NoiseBudget/aligoNB. Because this package depends on the LIGO's computer environment, some changes are required for using in KAGRA. So TY forked it on https://git.ligo.org/yamamoto/aligoNB/-/tree/kamioka?ref_type=heads. Alteration for KAGRA is managed in kamioka branch.

Environment construction

• On Kamioka/Mitaka workstations, environment is already constructed. So you can skip this section.

  • All packages are now available on conda-forge, though the inspiral-range package is installed via pip in the original installation manual.

    $ conda create -n aligoNB python=3.9
    $ conda activate aligoNB
    $ conda install -c conda-forge numpy scipy matplotlib nds2-client python-nds2-client gwinc gpstime astropy inspiral-range

  • For accessing data easily, it's better to change some environmental variables automatically in the aligoNB environment.

    $ conda env config vars set NDSSERVER='k1nds2:8088'

Installation of aligoNB

• On the CDS workstation, aligoNB is already installed on /users/Commissioning/aligoNB.

  $ cd /path/to/somewhere
  $ git clone https://git.ligo.org/yamamoto/aligoNB.git
  $ git checkout -b kamioka origin/kamioka

Quick start

• It works only on CDS workstations in Kamioka and Mitaka.

  $ cd /users/Commissioning/aligoNB
  $ conda activate aligoNB
  $ python3 -m aligoNB -t 1369232206 -s 64 -hs k1nds2 -p 8088 K1

Challenges

• There is no way to share the measurement files between on-site and off-site.
• There is no global NDS2 server.

How to share the measurement files?

• On Git-LFS (same way as LIGO)
  • 50GB = $60/year?
  • For a long term usage, more large storage (= much money) is required.
• On Git
  • We cannot do 'git clone' soon because of a too large repository.
• On Local NFS disk
  • Only on-site (including Mitaka control room) people can contribute the noise budget activity.
• On KAGRA Dropbox
  • The conflict problem must be fixed at first.
  • Dropbox must be installed as same path for sharing the noise budget code among collaborators.

    • /kagra/Dropbox on CDS workstations vs. ${HOME}/Dropbox on the personal laptop for the most of people.