FH Sustainable Computing Workshop

6 Nov 2025, 08:40 → 7 Nov 2025, 18:00 Europe/Berlin

SR BAH1 (Building 3)

The FH Sustainability Forum and FH IT experts present a 2-day workshop on computing. In this workshop, participants will learn to write efficient and maintainable code, as well as how to utilize batch computing and NAF computing and storage resources in a sustainable manner. Best practices will be taught by experts. This workshop is targeted towards students and postdocs, but open to anyone who feels like they would benefit from refreshing their memory or learning current best practices. Participants will learn how to develop more efficient code and how to maximize resources and minimize waste, with hands-on examples. These examples will be demonstrated with local computing clusters and are tailored to the needs of the FH division.

 

The fifth installment of this workshop will occur on November 6 and 7, 2025, in person on the Hamburg campus (with limited zoom participation available). This fifth installment is targeted towards people who are new to DESY and working on the NAF. We plan to offer this workshop at regular intervals in the future, so that incoming students and postdocs can profit. The next workshop will target more advanced users.

Lunch is not included.

Location of building 3:

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Zoom connection: 
https://cern.zoom.us/j/62785538071?pwd=dXJFZndHK0g4eVNaelArSjVjaUFQZz09

Mattermost channel: https://chat.desy.de/desy/channels/fh-sustainable-computing-workshop
 

Live notes for last minute updates: 

Gitlab repository for the workshop: https://gitlab.desy.de/fh-sustainability-forum/sustainable-coding-tutorial

Thursday 6 November

09:00 → 11:00 Thursday early morning

09:00 Workshop introduction and overview

Speaker: Juliette Alimena (DESY-CMS)

Intro_SustainableComputingWorkshop_6Nov2025.pdf

09:15 Introduction to the NAF

Speakers: Dr Kilian Schwarz (IT (IT Scientific Computing)), Thomas Hartmann (IT (IT Systems)), Yves Kemp (IT (IT Systems))

NAF_Sustainability-Kemp-2025.pdf

10:15 Data Access and Storage Systems at DESY

Speaker: Christian Voss (DESY)

filesystems.pdf

11:00 → 11:30 Break

11:30 → 13:00 Thursday late morning

11:30 Introduction to the NAF Jupyter HUB with ROOT

Speakers: Eleanor Jones (ATLAS (ATLAS-Experiment)), Frank Gaede (FTX (FTX Fachgruppe SFT))

GitLab

12:30 (Optional) Basic ROOT usage

Speaker: Eleanor Jones (ATLAS (ATLAS-Experiment))

13:00 → 14:00 Lunch

14:00 → 15:30 Thursday early afternoon

14:00 The NAF and Batch Computing

Speaker: Christoph Beyer (IT (IT Systems))

Hands on for workshop

introduction_to_htcondor.pdf

15:30 → 16:00 Coffee break

16:00 → 18:00 Thursday late afternoon

16:00 Batch computing

Speaker: Christoph Wissing (DESY)

BatchExerciseIntro.pdf

Git Repo

17:00 NAF Q&A

Speakers: Christoph Beyer (IT (IT Systems)), Dr Kilian Schwarz (IT (IT Scientific Computing)), Thomas Hartmann (IT (IT Systems)), Yves Kemp (IT (IT Systems))

Friday 7 November

09:00 → 11:00 Friday early morning

09:00 Introduction to GIT (talk)

Speaker: Juliette Alimena (CMS-DESY)

GitTutorial_SustainableComputingWorkshop_7Nov2025.pdf

09:30 Introduction to GIT (hands on)

Speaker: Juliette Alimena (CMS-DESY)

exercises

Git Repo

11:00 → 11:30 Coffee break

11:30 → 13:15 Friday late morning

11:30 Best coding practices

Speaker: Thomas Madlener (FTX (FTX Fachgruppe SFT))

C++ unit testing exercises

presentation.pdf

Python unittesting exercises

Software exercises

13:15 → 14:15 Lunch

14:15 → 15:45 Friday early afternoon

14:15 Continuous integration

Speakers: Juliette Alimena (CMS (CMS Fachgruppe Searches)), Thomas Madlener (FTX (FTX Fachgruppe SFT))

Exercise repository

sustainable-computing-ci.pdf

15:45 → 16:15 Break

16:15 → 17:15 Friday late afternoon

16:15 General Q&A / Overflow

17:00 Closing

Speaker: Juliette Alimena (CMS-DESY)

closeout survey