HTCondor Workshop Autumn 2025 in Prague

Session

Workshop Session

Sep 16, 2025, 9:00 AM

FZU - Institute of Physics of the Czech Academy of Sciences

Conveners

Workshop Session

• There are no conveners in this block

Workshop Session

• There are no conveners in this block

Workshop Session

• There are no conveners in this block

Workshop Session

• There are no conveners in this block

Workshop Session

• Helge Meinhard (CERN)

Workshop Session

• Gregory Thain

Workshop Session

• Chris Brew (Science and Technology Facilities Council STFC (GB))

Workshop Session

• Brian Paul Bockelman (University of Wisconsin Madison (US))

Workshop Session

• Christoph Beyer

Workshop Session

• There are no conveners in this block

Workshop Session

• Chris Brew (Science and Technology Facilities Council STFC (GB))

23. FZU Introduction Talk

Michael Prouza (FZU - Institute of Physics of the Czech Academy of Sciences)

9/16/25, 9:00 AM

28. Nuclear Physics Institute CAS and its role in the WLCG computing in the Czech republic

Dagmar Adamova (Czech Academy of Sciences (CZ))

9/16/25, 9:25 AM

Miscellaneous

The Nuclear Physics Institute (NPI) of the Czech Academy of Sciences (CAS) conducts research across a broad spectrum of nuclear and particle physics, both experimental and theoretical, as well as applied. It also participates in large-scale international projects. Scientists and students from the Department of Heavy Ion Physics are actively involved in the experiments ALICE@LHC, STAR@RHIC and...

36. Meeting Housekeeping

Alexandr Mikula (Czech Academy of Sciences (CZ))

9/16/25, 9:50 AM

26. Round the Room Introductions

9/16/25, 10:00 AM

4. HTCondor: Whats New / Whats coming up

Todd Tannenbaum

9/16/25, 11:00 AM

HTCondor presentations and tutorials

32. Introduction to Change Management Theme

MIRON LIVNY

9/16/25, 11:45 AM

Installation and Upgrades

13. How to Juggle HTCondor Configs Without Breaking Your Pool

Gregory Thain (University of Wisconsin - Madison)

9/16/25, 12:00 PM

Installation and Upgrades

10. Upgrade rollout in the CHTC

Gregory Thain (University of Wisconsin - Madison)

9/16/25, 2:00 PM

Installation and Upgrades

8. Tour of all the HTCSS Tools

Gregory Thain (University of Wisconsin - Madison)

9/16/25, 2:20 PM

HTCondor presentations and tutorials

2. Two decades of HTCondor and CMS success story

Antonio Perez-Calero Yzquierdo (Centro de Investigaciones Energéticas Medioambientales y Tecnológicas)

9/16/25, 4:00 PM

HTCondor user presentations

The Compact Muon Solenoid at CERN has successfully leveraged vast amounts of compute resources from a globally distributed infrastructure (primarily the Worldwide LHC Computing Grid) for over two decades, enabling the collaboration to achieve its scientific goals. During this period, a key technology has been the HTCondor Software Suite (HTCSS), which has allowed CMS to manage its High...

21. Can we break HTCondor before HL-LHC does?

Antonio Delgado (University of Notre Dame (US))

9/16/25, 4:25 PM

HTCondor user presentations

what is Run 4 scale, and can we test HTCondor to reach it, and what happens when it does

20. News from the DESY cluster

Christoph Beyer

9/16/25, 4:50 PM

HTCondor user presentations

This talk is a mix of follow-ups to earlier talks in this series about power-modulation of a condor pool and some recent things that hopefully are "something to write home about"

27. Latest generation CPU overview (Intel/AMD) and selection of GPUs for increased performance

Lukas Vach

9/16/25, 5:10 PM

Miscellaneous

CPU Intel (Xeon 6th generation)

CPU AMD (Epyc 5th generation)

GPUs Nvidia (latest generation)

How to configurate first CPU Node with GPU support

22. HTC Accounting with AUDITOR

Dirk Sammel (University of Freiburg (DE))

9/17/25, 11:00 AM

HTCondor user presentations

In the realm of High Throughput Computing (HTC), managing and processing large volumes of accounting data across diverse environments and use cases presents significant challenges. AUDITOR addresses this issue by providing a flexible framework for building accounting pipelines that can adapt to a wide range of needs.
At its core, AUDITOR serves as a centralized storage solution for accounting...

5. HTCondor-CE Dashboard

Todd Tannenbaum

9/17/25, 11:25 AM

Monitoring

16. Snakemake Done Three Ways

Brian Paul Bockelman (University of Wisconsin Madison (US))

9/17/25, 11:45 AM

Miscellaneous

14. Architecture Overview - What are the components and processes

Todd Tannenbaum

9/17/25, 12:10 PM

Architectures

33. Introduction to GPUs and novel Architectures Theme

MIRON LIVNY

9/17/25, 2:00 PM

Architectures

3. Machine Learning and Scheduling Strategies for Sustainable Computing at PIC

Jose Flix Molina (CIEMAT - Centro de Investigaciones Energéticas Medioambientales y Tec. (ES))

9/17/25, 2:20 PM

HTCondor user presentations

This work addresses the optimisation of energy use, electricity costs, and CO2 emissions at the PIC WLCG Tier-1 site. With data centre energy demand expected to increase, aligning with WLCG sustainability goals is critical.

Two main studies were conducted. First, simulated natural job drainages, applied to 2023–2024 PIC utilisation data (HTCondor logs), evaluated halting job acceptance...

1. Operating HTCondor for CPU and GPU Workloads at IFIC

Miguel Folgado (IFIC / CSIC-UV)

9/17/25, 2:40 PM

HTCondor user presentations

The Instituto de Física Corpuscular (IFIC) is a joint research center of the Spanish National Research Council (CSIC) and the University of Valencia, focused on fundamental physics, from particle physics to cosmology. It hosts over 400 researchers, engineers, and technical staff working on national and international projects.

In this talk, we will present how IFIC manages two compute...

11. HTCondor GPU administration and How We Deploy It In the Real World

Brian Paul Bockelman (University of Wisconsin Madison (US))

9/17/25, 3:00 PM

Architectures

12. Managing Trust with Tokens and Capabilities

MIRON LIVNY

9/17/25, 4:00 PM

Security

35. Introduction to Scheduling and Policies Theme

MIRON LIVNY

9/18/25, 9:00 AM

Policies and Customisations

7. Next Level HTCSS Customization: Transforms, Submit Requirements, and Plugins

Todd Tannenbaum

9/18/25, 9:20 AM

Policies and Customisations

38. Transforms and Containers

Thomas Birkett

9/18/25, 9:55 AM

Policies and Customisations

29. Anatomy of a Start Expression

Chris Brew (Science and Technology Facilities Council STFC (GB))

9/18/25, 10:10 AM

HTCondor user presentations

or START! I nearly ran a job.

39. Hosting an HTCondor with Container Universe workload on a bare metal Kubernetes cluster

Caterina Marcon (Università degli Studi e INFN Milano (IT)), David Rebatto (Università degli Studi e INFN Milano (IT))

9/18/25, 2:00 PM

Policies and Customisations

INFN with its DATAcloud infrastructure provides a scalable network of federated cloud sites. The ICSC project (National Research Center in High-Performance Computing, Big Data, and Quantum Computing), funded by the PNRR (National Recovery and Resilience Plan), was established to drive R&D efforts focused on advancing high-performance computing, simulations, and big data analytics innovation....

18. Managing credentials with the credmon

Brian Paul Bockelman (University of Wisconsin Madison (US))

9/18/25, 2:25 PM

Security

15. A Job's Journey Through HTCondor - How a job is placed, matched, and run

Gregory Thain (University of Wisconsin - Madison)

9/18/25, 2:50 PM

HTCondor presentations and tutorials

34. Introduction to Data Management and Movement Theme

MIRON LIVNY

9/19/25, 9:30 AM

Data

6. Files Common Across Jobs and How to Better Handle Them

Brian Paul Bockelman (University of Wisconsin Madison (US))

9/19/25, 9:50 AM

Data

9. Disk Usage of Jobs at the EP

Brian Paul Bockelman (University of Wisconsin Madison (US))

9/19/25, 10:10 AM

Data

19. Discussion: Run 4 and HTCSS - What we need 5 years from now

MIRON LIVNY

9/19/25, 11:00 AM

HTCondor presentations and tutorials

Let's identify or discuss big upcoming needs / vision for HTCSS. What does the community expect from HTCSS 5 years from now? What changes/demands will Run 4 impose on the computing environment?

30. Workshop Wrap Up

Chris Brew (Science and Technology Facilities Council STFC (GB))

9/19/25, 12:10 PM

Miscellaneous

37. BBQ

Vanessa HAMAR (CC-IN2P3)

Monitoring

41. Functional Distributed Programming

Gregory Thain (University of Wisconsin - Madison)

17. Job Archive: History, Epoch, Transfer Ads, and what to do with them

HTCondor Team

Monitoring