CAF - ATLAS France users meeting

Europe/Paris
Amphitheatre (CC-IN2P3)

Amphitheatre

CC-IN2P3

Description

Meeting organised by the group Computing ATLAS France (CAF) with users from French laboratories.

It will be held at CC in the Amphitheatre on 9th December
Please note that the sanitary pass will be obligatory !
Please register if you are coming !


Zoom link:
https://cern.zoom.us/j/61247195099?pwd=a2FONWtVbmhRdmRVTFIvZjdEUWJ3Zz09

Inscription
Participants
Participants
  • abdellah Tnourji
  • Aresh Vedaee
  • Arnaud Duperrin
  • David Bouvet
  • David Calvet
  • Didier Lacour
  • Djamel Boumediene
  • Eric Fede
  • Frederic DERUE
  • Jan Stark
  • Laurent Duflot
  • LAURENT SERIN
  • Pierre-Antoine Delsart
  • Stephane JEZEQUEL
  • Sylvain Caillou
  • Tetiana Hryn'ova
  • Zhang Zhiqing

Minutes of the CAF-user meeting of 09/12/2021 (not finished)
=======================================

A few points and actions to be taken:

- GPUs
2 GPU-year (17000 h) are required for 2022 at CC-IN2P3. In 2021 60% of this was used.
Some contributions are not counted, e.g L2IT is using also the farm on its lab accounting (~3 times more). There is also usage of GPUs on other sites (universities, CERN etc...)
We need to redo a survey of GPU activities in our groups as done in 2019.

- LOCALGROUPDISK
  Remain ~100 GB and will receive all/part of the LGC of LPSC which is decommissionned.
  Need to do as much cleaning as possible in the next weeks

- network
 several sites start (already in 2021) to be limitied by their bandwidth,
 such as CPPM (10 Gbps) or LAPP (20 Gbps) as shown during the data/network challenge.
 LAPP is now close-site of LPSC which has its storage decommissionned, putting more
 stress on the network.

- software readiness for Run 3.
For Run 3 the analysis model has changed. There are things to learn for developpers but also for analysts.
Existing software tutorials are based on rel 21 (Run 2)
https://twiki.cern.ch/twiki/bin/viewauth/AtlasComputing/SoftwareTutorial
https://twiki.cern.ch/twiki/bin/view/AtlasProtected/TopReconstructionGroup
Need to ensure in each group who is able to run Run 3 code

- OTPS for S&C involvement
  - update numbers once 2nd semester numbers are available
  - look for activities which are counted as "software" whereas they should not 
    e.g in Detector Operation
  - need activities in software like ACTS to better taken into account, in OTPs
    -> need to contact conveners of the relevant activities, which can be spread in many
        different activites, CP groups etc, to check how to do this.
        Will dedicate some efforts/task force, with T. Strebler (CPPM)

 

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