Using Physics Analysis Toolkit (PAT) in your analysis

13 Jan 2009, 09:00 → 27 Feb 2009, 20:20 Europe/Zurich

to be defined (CERN)

Comprehensive training on using Physics Analysis Toolkit in CMS data analysis. The training consists of series of modules covering everything from basic knowledge to the details needed in real analysis. Each participant is required to have an analysis project which will be developed during this course. The training modules are organized as lectures and e-learning activities, and they may include exercises. The tutors will help the participants with their projects. Some of the sessions consist of e-learning activities only and the session in this schedule refers to the time when these activities should be completed. It is important that the participants can be present (at CERN, at FNAL or with a good EVO connection) for the first (Jan 13) and the last (Feb 27) modules. Other modules can be followed remotely and the EVO recordings can be retransmitted at FNAL and elsewhere. The participants will profit most from tutoring (personal discussions, hands-on sessions) at CERN and at FNAL, but it is possible to participate remotely. The final schedule is now confirmed.

Tuesday, 13 January

Module 1: Course organization

• Goals of the course
• Round-table presentation of the participants and their projects
• Presentation of the activities and the schedule
• Learning platform: web area, discussion lists, tutoring
• Goal of the module : learn the basic tools needed during the course

EVO: PAT elearning (CMS community)

Playback instructions playback_instructions_EVO.txt

Video recording (EVO) PAT-elearnin-09-01-13-1527.7z

1 Welcome

Speaker: Mr Roberto Tenchini (Universita di Pisa)

2 Goals of the course

Speaker: Dr Frederic　J. Ronga (ETH Zurich)

Slides goals.pdf

Slides (no transition) goals-flat.pdf

3 Round-table presentation of the participants

16:00 Coffee break

4 Learning platform

Presentation, exercises

Course working area https://espace.cern.ch/learncms/pat/default.aspx

Thursday, 15 January

Module 2: CMSSW basics

Restricted to registered participants (if you are not registered, you can follow
through EVO)

EVO: PAT elearning (CMS community)

• Different framework modules: produces, analyzers, filters...
• Accessing data
• Goal of the module : get familiar with basic CMSSW framework concepts needed in this course

Playback instructions https://twiki.cern.ch/twiki/bin/view/CMS/WorkBookHelp#EvoPlayBack

Video recording (EVO) pat2-09-01-15-0902.zip

5 Introduction to CMSSW

Speaker: Benedikt Hegner (CERN)

Slides PATsessionII.pdf

10:15 Coffee break

6 Hands-on exercises

Exercises https://twiki.cern.ch/twiki/bin/view/CMS/WorkBookWriteFrameworkModule

Tuesday, 20 January

Module 3: Introduction to PAT

Restricted to registered participants (if you are not registered, you can follow
through EVO)

EVO: PAT elearning (CMS community)

• Introduction to basic principles
• The benefits using PAT
• Checking out and compiling the code
• Configuration files
• Goal of the module : learn to run a PAT program with default settings

Playback instructions https://twiki.cern.ch/twiki/bin/view/CMS/WorkBookHelp#EvoPlayBack

Video recording (EVO) pat3-09-01-20-0907.zip

7 Introduction to Physics Analysis Toolkit (PAT)

Speaker: Dr Frederic　J. Ronga (ETH Zurich)

Slides fronga-patintro.pdf

10:00 Coffee break

8 Hands-on exercises

Link to WorkBook https://twiki.cern.ch/twiki/bin/view/CMS/WorkBookPAT

Thursday, 22 January

Module 4: PAT object data formats (at distance - no lecture)

• Where to find the documentation? Offline Guide, Doxygen, LXR, CVS
• What is in the data formats? How to inspect?
• How do you read it? Bare ROOT, FWLite, full framework
• Some advanced topics: isolation, embedding, PF integration,...
• Goal of the module : get familiar with the data formats and how to find documentation on them.

more information https://twiki.cern.ch/twiki/bin/view/CMS/SWGuidePATDataFormats

Tuesday, 27 January

Module 5: Analysis of the PAT data

• The tools: FWLite/EDAnalyzer
• Access the specific data (electrons, b-tagging, trigger...)
• Questions having come up during the earlier exercises
• Goal of the module: write a simple analysis program which accesses your PAT data

Restricted to registered participants (if you are not registered, you can follow through EVO)

EVO: PAT elearning (CMS community)

Playback instructions https://twiki.cern.ch/twiki/bin/view/CMS/WorkBookHelp#EvoPlayBack

Video recording pat5-09-01-27-0903.zip

9 Analysis of the PAT data

Speaker: Benedikt Hegner (CERN)

Slides PATsessionV.pdf

10:00 Coffee break

10 Hands-on exercises

Thursday, 29 January

Module 6: Cleaning (at distance - no lecture)

• What does cleaning mean?
• What are potential subjects of cleaning and its consequences?
• How to set about the cleaning of objects for typical candidates of object collections?
• How does PAT deal with the issue of object cleaning?
• Where is object cleaning of relevance for your analysis?

Tutorial page https://twiki.cern.ch/twiki/bin/view/CMS/SWGuidePATCleaning

Tuesday, 3 February

Module 7: MC and trigger matching

• What are matches to MC truth or trigger objects good for?
• How is the matching in the PAT technically performed?
• How is the matching information used in an analysis?

Goals of the module:
- understand the use of matching physics object to trigger and MC truth objects in an analysis
- learn how the matching is set up in the PAT and used in an analysis.

Restricted to registered participants (if you are not registered, you can follow through EVO)

EVO: PAT elearning (CMS community)

EVO recording pat7-09-02-03-0838.zip

Playback instructions https://twiki.cern.ch/twiki/bin/view/CMS/WorkBookHelp#EvoPlayBack

SWGuide https://twiki.cern.ch/twiki/bin/view/CMS/SWGuidePATMatching

11 MC and Trigger Matching

Speaker: Volker Adler (Vrije Universiteit Brussel (VUB))

Slides Matching_090203_eLearnPAT-7.odp Matching_090203_eLearnPAT-7.pdf

09:30 coffee break

12 Hands-on exercise

Exercises https://espace.cern.ch/learncms/pat/Module%207%20%20MC%20and%20trigger%20matching/Home.aspx https://espace.cern.ch/learncms/pat/Module%207%20%20MC%20and%20trigger%20matching/Home.aspx

Thursday, 5 February

Module 8: User selections (at distance - no lecture)

• Selection syntax in PAT
• Selection of objects (e.g above certain cuts), event filtering, selection of output contents

Goal of the module : understand the selection mechanism in PAT

Tutorial page https://twiki.cern.ch/twiki/bin/view/CMS/WorkBookIntroUserSelection

Tuesday, 10 February

Module 9: Group dependent analysis layers (at distance - no lecture)

• Overview of PAG specific tools
• Overview of generic "layer 2" tools
• Common pat-tuple selections for Summer 08 samples

Goal of the module: learn how to build on the PAT layers

Tutorial page https://twiki.cern.ch/twiki/bin/view/CMS/SWGuideEventHypothesis

Tuesday, 17 February

Module 10: Advanced topics and/or wrap-up

This module will address
- issues which are still unclear (even if covered)
- things you would absolutely like to learn before the before the end of the course
based on your feedback.

Restricted to registered participants (if you are not registered, you can follow through EVO)

EVO: PAT elearning (CMS community)

Minutes patsessionten.pdf

Thursday, 19 February

Module 11: Running a large scale analysis

• running grid jobs withCRAB
• where to store your data? how to access it again?
• FWLite/EDAnalyzer in the context of large scale analysis
• Goal of the module: learn the practicalities of the large scale analysis

Open to all CMS members

EVO: CMS grid tutorial

EVO recording cmsgrid-09-02-19-0917.zip

Playback instructions https://twiki.cern.ch/twiki/bin/view/CMS/WorkBookHelp#EvoPlayBack

13 Finding and storing data

Speaker: Thomas Kress (III. Physikalisches Institut (B))

Slides Tutorial_CMS_Feb2009.pdf

14 Running grid jobs with CRAB

Speaker: Federica Fanzago (Unknown)

Slides crab_tutorial_19_2_2009.pdf crab_tutorial_19_2_2009.ppt

twiki https://twiki.cern.ch/twiki/bin/view/CMS/WorkBookRunningGrid

10:00 Coffee break

15 Monitoring

Speakers: Edward Karavakis (Brunel University-CERN), Julia Andreeva (CERN)

Slides

• Tracking_your_tasks_with_Task_Monitoring.odp
• Tracking_your_tasks_with_Task_Monitoring.pdf
• Tracking_your_tasks_with_Task_Monitoring.ppt

Tutorial https://twiki.cern.ch/twiki/bin/view/CMS/WorkBookMonitoringTutorial

16 Hands-on exercises

Tutorial page https://twiki.cern.ch/twiki/bin/view/CMS/WorkBookRunningGrid

17 Trouble-shooting

Speaker: Marco Calloni (Dipartimento di Fisica "G. Occhialini"-Universita degli Studi Mi)

Slides TroubleShooting.pdf.pdf

Friday, 27 February

Module 12: Evaluation and feed-back

Restricted to registered participants (if you are not registered, you can follow through EVO)

EVO: PAT elearning (CMS community)

18 Lessons learnt

Speaker: Frederic J. Ronga (ETH Zurich)

Slides summary.pdf

19 Summary of the feedback

Speaker: Kati Lassila-Perini (Helsinki Institute of Physics HIP)

Slides pat_feedback_27_2_09.pdf pat_feedback_27_2_09.ppt

20 Round-table discussion