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• Omicron

Omicron

O3GK log

Some report on O3GK data processing in detail.

O3GKlog

Installation

• The Omicron code is managed on the Virgo SVN and it should be able to be installed by CMT system.
  • But when we use the CMT in order to install Omicron, dependency conflict is occurred and we cannot install it correctly.

• F. Robinet helped us to install it on the k1sum0 and we can use copy of it on the another Debian 9 systems.

• T. Yamamoto had already copied Omicron and the related packages on k1nfs0:/export/virgo/virgosoft.

  • So Omicron can be used by mounting NFS area on the Debian 9 systems.

    > grep virgsoft /etc/fstab
    10.68.10.10:/export/virgo/virgosoft /home/controls/opt/virgosoft nfs rw,bf,soft 0 0

How to use on Kamioka server

• Before using omicron, we must set the environmental variables by

  • > source ~controls/opt/virgosoft/environment.sh

• Omicron is available as a command line tool on k1sum0, k1sum1, and another test system of Debian 9.
  • There are three ways to use omicron

    case1> omicron  start_gps  stop_gps  option_file
    case2> omicron  segment_file  option_file         ### TY don't know much about this way.
    case3> omicron  central_gps  option_file

  • Some examples of a form of option_file are shown in [1] and [2].

• Omicron is available as a GUI launched from MEDM on the client workstations.

  • Sitemap -> Commissioning -> Glitch pipeline -> Omicron

How to use on Kashiwa server

• Before using omicron, we must set the environmental variables by

  • > source /gpfs/ligo/sw/conda/etc/profile.d/conda.sh
    > conda activate igwn-py38

  • If you want to use this environment on new machine, https://computing.docs.ligo.org/conda/ is helpful.

• Omicron is available as a command line tool on m31-01, m31-02.
  • There are three ways to use omicron

    case1> omicron  start_gps  stop_gps  option_file
    case2> omicron  segment_file  option_file         ### TY don't know much about this way.
    case3> omicron  central_gps  option_file

  • Some examples of a form of option_file are shown in [1] and [2].

Trigger generation for DailySummary

• DailySummaryPage uses the trigger files using gwtrigfind for constructing the Omicron summary page.

• T. Yamamoto modified gwtrigfind because our computer environment is slightly different from LIGO's one.

  • In LIGO convention [3], trigger files should be generated in the /home/detchar/triggers

  • We have only controls user on k1sum0 and another computers.

  --- /home/controls/opt/summary-2.7/lib/python2.7/site-packages/gwtrigfind/core.py.bak   2018-10-19 09:12:45.375654000 +0900
  +++ /home/controls/opt/summary-2.7/lib/python2.7/site-packages/gwtrigfind/core.py       2019-01-23 18:29:06.224172322 +0900
  @@ -161,12 +161,12 @@ def find_detchar_files(channel, start, e
       ifo, name = _format_channel_name(channel).split('-', 1)
       # find base path relative to O1 or O2 formatting
       if start >= OMICRON_O2_EPOCH:
  -        base = os.path.join(os.path.sep, 'home', 'detchar', 'triggers')
  +        base = os.path.join(os.path.sep, 'home', 'controls', 'triggers')
           tag = etg.upper()
           dirtag = '%s_%s' % (name, tag)
       else:
           epoch = '*'
  -        base = os.path.join(os.path.sep, 'home', 'detchar', 'triggers', '*')
  +        base = os.path.join(os.path.sep, 'home', 'controls', 'triggers', '*')
           tag = etg.title()
           dirtag = '%s_%s' % (str(channel).split(':', 1)[1], tag)

• The Omicron job is automated using crontab on k1sum1. summary_*.txt is for * Hz sampling rate channels.

  > crontab -l | grep Omicron
  7-59/15 * * * * env - `cat /users/DET/tools/Omicron/etc/sum1_cron-omicron.env` /users/DET/tools/Omicron/Script/automation_segment.sh /users/DET/tools/Omicron/Parameter/summary_2048.txt > /tmp/auto-omicron-2048_segment.log 2>&1
  9-59/15 * * * * env - `cat /users/DET/tools/Omicron/etc/sum1_cron-omicron.env` /users/DET/tools/Omicron/Script/automation_segment.sh /users/DET/tools/Omicron/Parameter/summary_1024.txt > /tmp/auto-omicron-1024_segment.log 2>&1
  11-59/15 * * * * env - `cat /users/DET/tools/Omicron/etc/sum1_cron-omicron.env` /users/DET/tools/Omicron/Script/automation_segment.sh /users/DET/tools/Omicron/Parameter/summary_512.txt > /tmp/auto-omicron-512_segment.log 2>&1
  13-59/15 * * * * env - `cat /users/DET/tools/Omicron/etc/sum1_cron-omicron.env` /users/DET/tools/Omicron/Script/automation_segment.sh /users/DET/tools/Omicron/Parameter/summary_256.txt > /tmp/auto-omicron-256_segment.log 2>&1
  3-59/15 * * * * env - `cat /users/DET/tools/Omicron/etc/sum1_cron-omicron.env` /users/DET/tools/Omicron/Script/automation_segment.sh /users/DET/tools/Omicron/Parameter/summary_4096.txt > /tmp/auto-omicron-4096_segment.log 2>&1

• When you want to add some channels for the Omicron search,

  • 1) add channel name to DATA CHANNELS line of /users/DET/tools/Omicron/Parameter/summary_*.txt. Please choose appropriate * referring sampling rate.
    or
    2) add new job to crontab

    > crontab -e
    5-59/15 * * * * env - `cat /users/DET/tools/Omicron/etc/sum1_cron-omicron.env` /users/DET/tools/Omicron/Script/automation.sh /users/DET/tools/Omicron/Parameter/summary_test.txt > /tmp/auto-omicron.log 2>&1
    5-59/15 * * * * env - `cat /users/DET/tools/Omicron/etc/sum1_cron-omicron.env` /users/DET/tools/Omicron/Script/automation.sh /path/to/your_parameter.txt > /tmp/auto-omicron2.log 2>&1

  • In order to use trigger results on SummaryPage, use same OUTPUT parameters as

    • OUTPUT DIRECTORY /home/controls/triggers/tmp
      OUTPUT PRODUCTS triggers
      OUTPUT FORMAT xml
      OUTPUT VERBOSITY 0

• Finally, we must modify the INI file of DailySummary.

Trigger generation on Kashiwa server

It is not yet automated, only manual script is available. Command example:  Omicron/Script/manual_segment_kashiwa.sh 2020-04-15 /home/detchar/git/kagra-detchar/tools/Omicron/Parameter/O3_C20.txt /home/detchar/Segments/K1-DET_FOR_GRB200415A/2020/K1-DET_FOR_GRB200415A_UTC_2020-04-15.txt > log.dat 2>&1  Example of submission file to condor is Omicron/Script/condor.sdf

Note for developers

• Bug in automation_segment.sh should be fixed.
  • Treatment of 0:00:00 : the segment including 0:00:00 maybe separated in segment files. If one of them is shorter than 64 sec, not processed. manual_segment.sh has a hint for this modification.
  • MARGIN is different from the O3GK configuration. In O3GK configuration, GPS_END is set earlier by 30 sec. 30 sec is determined by burst analysis margin.

  • Please modify segment if needed.

• To share the trigger files with other machines,

  rsync -av /mnt/triggers/K1/ /mnt/detfs0/triggers/K1/ > /tmp/cp-omicron.log 2>&1 is required on k1sum1. It is temporary commented out in crontab.

• If something went wrong, please check OUTPUT DIRECTORY in the parameter file. It should be /home/controls/triggers/tmp on Kamioka server and /data/detchar/triggers/tmp on Kashiwa server.

Reference

• [1] VIR-0135A-15, Omicron: a tool for detector characterization

• [2] VIR-0545C-14, Omicron: an algorithm to detect and characterize transient events in gravitational-wave detectors

• [3] LIGO-T1300468, DetChar Trigger Handling Conventions