HSF WLCG Virtual Workshop on New Architectures, Portability, and Sustainability

11 May 2020, 16:00 → 13 May 2020, 18:00 Europe/Zurich

Zoom

Survey and Follow-up

Many thanks to those of you who responded to the survey. We presented the results, as well as follow-up items and a discussion on future planning on Wednesday 17 June.

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Event

The HSF and WLCG have organised this virtual event to focus on the challenges and opportunities of new computing architectures. This is a critical and highly relevant topic for HEP where much progress is being made, but there remain many open questions to discuss.

Adapting to the needs of the communty to host more virtual participation events we will hold this meeting over 3 days, from 16-18h each day, to maximise the opportunity to participate.

Three themes will be addressed across the three days:

• Application Software
• Processing Frameworks
• Validation and Accounting

We will be exploring new ways to interact effectively during events like these, with more emphasis on having material available early and the opportunity to raise discussion points in advance. Trying to organise meetings with a lower environmental footprint is a goal we have beyond the current situation.

Please register for the event if you would like to join - it will help a lot for our planning purposes.

Scientific Organising Committee

• Ian Bird, CERN
• Simone Campana, CERN
• Ian Collier, STFC
• Caterina Doglioni, Lund
• Jose Flix Molina, CIEMAT
• Alessandra Forti, University of Manchester
• Heather Gray, UC Berkeley/LBNL
• Michel Jouvin, LAL-CNRS
• David Lange, Princeton University
• Oxana Smirnova, Lund
• Graeme A Stewart, CERN

Please don't hesitate to contact us with suggestions about how to make this virtual workshop as successful as possible.

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Connection details:

https://cern.zoom.us/j/94251942799

(Meeting ID: 942 5194 2799; Password: WLCGHSF)

Please note - the meeting will be recorded and made available after the event. If you do not want to be recorded then please send your questions to the session chair, use the workshop notebook or the Zoom chat feature.

Summary Talk

Survey

Survey Results Talk

Workshop Notebook (Live Notes)

Workshop Outcomes.pdf

Workshop Video YouTube Playlist

Monday 11 May

New Architectures, Portability, and Sustainability: Application Software

Convener: Caterina Doglioni (Lund University (SE))

1 Introduction

Speaker: Graeme A Stewart (CERN)

00_introduction.mp4

HSF WLCG Virtual Workshop Introduction.pdf

2 Code Portability

• Different hardware available and foreseen
• Features of main APIs for heterogeneous projects.
• Projects that are looking at this topic and plans
• Experiences so far

Speaker: Dr Charles Leggett (Lawrence Berkeley National Lab (US))

01_code_portability.mp4

2020.05.11_CCE-PPS.pdf

3 Heterogeneous Architectures and Detector Simulation

We discuss attempts to develop libraries for adapting detector simulation (mainly) to new architectures, giving an overview of these codes, prospects for porting to other architectures and what has been learned in the process.

• HEP specific libraries: VecCore, VecGeom, VecMath
• Specific hardware features and their likely impact on HEP codes

Speaker: Dr Guilherme Amadio (CERN)

02_heterogeneous_arch_det_sim.mp4

Heterogeneous Architectures Impact on Detector Simulation Software.pdf

4 TensorFlow as a Compute Engine

The use of Google TensorFlow as a general purpose parallel computing engine, using TensorFlowAnalysis as an example

Speaker: Anton Poluektov (Aix Marseille Univ, CNRS/IN2P3, CPPM, Marseille, France)

03_tensorflow_compute_engine.mp4

tensorflow_computing.pdf

Tuesday 12 May

New Architectures, Portability, and Sustainability: Processing Frameworks

Convener: Alessandra Forti (University of Manchester (GB))

5 Application Frameworks

How experiment frameworks are adapting to heterogeneous landscapes

Speakers: Attila Krasznahorkay (CERN), Christopher Jones (Fermi National Accelerator Lab. (US)), Dr Kyle Knoepfel (Fermi National Accelerator Laboratory)

6 Workload Management

Scheduling for heterogeneous resources; multi-node slots (HPCs)

Speakers: Antonio Perez-Calero Yzquierdo (Centro de Investigaciones Energéti cas Medioambientales y Tecno), Doug Benjamin (Argonne National Laboratory (US)), Ricardo Brito Da Rocha (CERN)

Wednesday 13 May

New Architectures, Portability, and Sustainability: Validation and Accounting

Convener: Michel Jouvin (Université Paris-Saclay (FR))

7 Benchmarking and Accounting Metrics

• How do we value heterogeneous resouces?
• What jobs would be used ?
• Can their efficiencies be considered the same?

Speakers: Domenico Giordano (CERN), Markus Schulz (CERN), Michele Michelotto (Università e INFN, Padova (IT))

8 Validation

• How to validate on multiple architectures?
• What's 'the same physics'?
• How to do this practically, testing each architecture and automating

Speakers: Adriano Di Florio (Universita e INFN, Bari (IT)), Ines Ochoa (Columbia University (US))

9 Closing Remarks

16_closing_remarks.mp4