Setting up the SGNL online analysis

This document describes how to set up an online CBC analysis with SGNL.

Prepare container

Follow the installation guide and make a singularity container.

Install pastro

To run an online analysis with the sgnl-ll-pastro-uploader, the pastro repo needs to be installed. A common practice is to install git repos under CONTAINER_NAME/src.

git clone -b sgnl git@git.ligo.org:gstlal/pastro.git
cd pastro
pip install -e .

Build sif container

singularity build CONTAINER_NAME.sif CONTAINER_NAME

Prepare working directory

In your working directory, copy over the following files from the repo

1. config/online_dag.yml:

   This is the config file for generating the online analysis workflow. Modify the config file options to setup the configuration. Note that the container: field shoud be the sif container.

2. config/cbc_db.yaml:

   This is the config file for creating trigger databases.

Create Workflow

Workflows can be created by:

singularity exec CONTAINER_NAME sgnl-ll-dagger -c <online config file> -w <workflow>

Currently the supported online workflows are:

1. setup
   • setup pre-generated files
2. setup-prior
   • assume svd bank already available, setup prior diststats files only
3. inspiral
   • the online analysis

Launch workflow

After creating a workflow, launch the dag:

condor_submit_dag <dag_name>.dag