nanoAOD-tools

Tools for working with NanoAOD (requiring only python + root, not CMSSW) NanoAOD twiki: https://twiki.cern.ch/twiki/bin/view/CMSPublic/WorkBookNanoAOD

Checkout instructions

You need to install a recent version of CMSSW

cmsrel CMSSW_9_4_6
cd CMSSW_9_4_6/src
cmsenv

Clone the code from the Oviedo-PAF group.

git clone https://github.com/Oviedo-PAF/nanoAOD-tools.git PhysicsTools/NanoAODTools
scram b

How to run on CRAB

Set the enviroment.

cmsenv
source /cvmfs/cms.cern.ch/crab3/crab.sh
voms-proxy-init -voms cms

Move to the directory:

cd PhysicsTools/NanoAODTools/crab

To send jobs, run SubmitDataset.py. Try to execute it with no options to obtain info and examples. To process a single dataset:

python SubmitDatasets.py --datasets [DATASET] --outTier [T2_ES_IFCA] --prodName jul20 --year 17

You can process all files from a text file using a txt file as output as in the example below. You can first check if all the datasets are found in crab using the CheckDatasets.py script and passing the txt file as an argument.

python SubmitDatasets.py datasets/data2017.txt --prodName myProductiondata2017_22feb2020

Use the option --test to send a few short jobs or the option --pretend to create the files and not run on them.

To check the status of the jobs:

python CheckJobs.py --tag myProd2017_DDMMYY

Add the option -a to auto-resubmit all failed jobs.

Some important info:

Important scripts

Check the default configuration (including JEC corrections) in crab_script.py and the options in SubmitDataset.py.

What is this doing? It reads a nanoAOD and:

Applies a skim, using: https://github.com/Oviedo-PAF/nanoAOD-tools/blob/master/python/postprocessing/modules/skimNRecoLeps.py
Applies a slim using this file: https://github.com/Oviedo-PAF/nanoAOD-tools/blob/master/python/postprocessing/SlimFileOut.txt
Produces histogram with sum of weights here: https://github.com/Oviedo-PAF/nanoAOD-tools/blob/master/python/postprocessing/framework/postprocessor.py
Uses modules to produce PU weights, prefire weights, JEC uncertainties, Rochester corrections... the modules are in: https://github.com/Oviedo-PAF/nanoAOD-tools/tree/master/python/postprocessing/modules
Chech what is being applied for each production in the script: https://github.com/Oviedo-PAF/nanoAOD-tools/blob/master/crab/crab_script.py

Merge the output trees

Use the instructions in this repository: https://github.com/GonzalezFJR/xtools