FLAF¶

FLAF - Flexible LAW-based Analysis Framework. Task workflow managed is done via LAW (Luigi Analysis Framework).

How to install¶

Setup ssh keys:
- On GitHub settings/keys
- On CERN GitLab profile/keys

Clone the repository:

git clone --recursive git@github.com:cms-flaf/HH_bbtautau.git HH_bbtautau

Create a user customisation file config/user_custom.yaml. It should contain all user-specific modifications that you don't want to be committed to the central repository. Below is example of minimal content of the file (replace USER_NAME and ANA_FOLDER with your values):

fs_default:
    - 'T3_CH_CERNBOX:/store/user/USER_NAME/ANA_FOLDER/'
fs_anaCache:
    - 'T3_CH_CERNBOX:/store/user/USER_NAME/ANA_FOLDER/'
fs_anaTuple:
    - 'T3_CH_CERNBOX:/store/user/USER_NAME/ANA_FOLDER/'
fs_anaCacheTuple:
    - 'T3_CH_CERNBOX:/store/user/USER_NAME/ANA_FOLDER/'
fs_histograms:
    - 'T3_CH_CERNBOX:/store/user/USER_NAME/ANA_FOLDER/histograms/'
fs_json:
    - 'T3_CH_CERNBOX:/store/user/USER_NAME/ANA_FOLDER/jsonFiles/'
analysis_config_area: config
compute_unc_variations: true
compute_unc_histograms: true
store_noncentral: true
vars_to_plot:
- b1_pt
- { "name" : MT2, need_cache: true }

Please note that the need_cache argument is needed if you need a variable from the AnaCacheTupleTask step (e.g. LegacyVariables)

How to load environment¶

Following command activates the framework environment:
```
source env.sh
```
For the new installation or after you implement new law tasks, you need to update the law index:
```
law index --verbose
```

Initialize voms proxy:

voms-proxy-init -voms cms -rfc -valid 192:00