HSF Weekly Meeting #196, 5 November 2020

The Gunpowder, Treason and Plot meeting

Present/Contributors: Graeme Stewart, Serhan Mete, Eduardo Rodrigues, Kyle Knoepfel, Attila Krasznahorkay, Andrea Valassi, Teng Jian Khoo, Kilian Lieret, Witek Pokorski, Efe Yazgan, Allie Hall, Michel Jouvin, Caterina Doglioni, Stefan Roiser, Josh McFayden, Pere Mato, Benedikt Hegner, Chris Jones, David Lange, Gloria Corti, Philippe Canal, Stefano Piano, Daniel Elvira, Witek Pokorski, Sam Meehan

Apologies: Paul Laycock, Ben Morgan

News, general matters, announcements

Letter of support for CSSI

Last week we approved a letter of collaboration for the CSSI call for Elements: Machine Learning Quark Hadronization (Jure Zupan, Phil Ilten). Project description and the letter are attached for reference. The project is very well aligned with our Physics Generator Working Group, so we were happy to propose collaboration should it be funded by the NSF.

Working Group Convenors for 2021

Liz, Michel and Graeme have been polling our current convenors and we’re close to knowing which positions will be open for next year. Hope to be able to make a call next week.

HEP C++ Course and Hands-on Training

Was held 12 - 16 October with 50 participants. Lecture recordings are available on the Indico page. Very lively discussions and very good feedback from students. Many thanks again to Sebastien Ponce as lecturer and all mentors.

Another 180 people on a waiting list. In a post-mortem meeting we decided to go for another iteration with 75 participants max. Tentatively in the week of

18 - 22 January 2021 –> Please check if there are any clashes!!

(We will open registration anew, but let people on the waiting list know.)

If you want to help us promote training please consider using the info from this propaganda slide.

Attrition rate was very low!

Can improve the afternoon organisation for the students. Some of the rooms were rather quiet.

Attila - should we also discuss higher level concepts (singletons, factory pattern)? Liz - singletons are very concurrency unfriendly though.

Compute Accelerator Forum

Next meeting, Wed 11 Nov, 17:00 CET with talks given by David Rohr (ALICE) and Daniel Campora (LHCb) on their experiments’ approaches to abstraction of GPU hardware.

Currently discussing with Nvidia the possibility to have a seminar style presentation on either the NSight profiling suite or libcu++ for the Wed 9 Dec, 16:30 CET meeting.

Tentative dates and times for 2021 – 2nd Wednesday of the month at 16:30 – have been entered in the indico category.

Please subscribe to compute-accelerator-forum-announce@cern.ch to receive notifications.


WLCG Software Liaisons

The WLCG has appointed Graeme Stewart and Liz Sexton-Kennedy as their software liaison contacts. Graeme and Liz will take care of reporting for software groups and for communicating WLCG needs back to developers.

Referees Meeting

There is an LHCC Referees Meeting with WLCG on Tuesday 17 November. Graeme will give a (general) software update (20’ slot). Please send any input that you have.

HL-LHC Software and Computing Review

We also expect to get news about the charge from the LHCC about the next phase of the review of software and computing for HL-LHC, this time focussing on common software projects, that should take place in Autumn 2021.


Profiles/`floating heads’

Working Group Updates

Data Analysis

Detector Simulation

Reconstruction and Software Triggers




Software Tools and Packaging

Software Training

Event generators



HSF-WLCG Virtual November Workshop

Workshop dates fixed 19, 20, 23, 24 November (pm CET). Agenda is pretty much finalised now.

Indico: https://indico.cern.ch/event/941278/.

Registration open 170 people signed up so far - please sign up yourself.

Good advertising so far: HSF, Belle II, ATLAS, CMS, LHCb, ALICE (asked), DUNE (asked), Geant4

But please help broadcast to other communities as well.


Intel Developer Summit 2020, https://webinar.intel.com/oneAPIDeveloperSummit2020

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