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CHIPP-CSCS Face to Face Meeting on 2018-06-21

• Date and time: Thursday 21st of June at 10:15
• Place: Zurich Zentrum (LEE E 126 link)
• External link / EVO: Only if requested

Agenda

• 10:15 - Welcome, coffee and agenda
• 10:30 - VO Status report (~last 6 months + changes since last F2F, for both Phoenix and CRAY)
  • LHCb (20' - Roland)
  • ATLAS (20' - Gianfranco)
  • CMS (20' - Thomas)
• 11:30 - Tier-2 status, plans & pledges
  • CSCS (45' - Various people, for both Phoenix and CRAY)
  • UNIBE-LHEP (30' - Gianfranco)
• 13:00 - Lunch
• 14:15 - Tier-3 status and plans
  • PSI (15' - Nina)
  • UNIBE-ID (15' - Gianfranco)
  • UNIGE (15' - Gianfranco)
• 15:00 - Coffee break
• 15:15 - NGI_CH (20' - Gianfranco)
  • Open tickets: https://ggus.eu/index.php?mode=ticket_search&supportunit=NGI_CH&status=open&timeframe=any&orderticketsby=REQUEST_ID&orderhow=desc&search_submit=GO
• 15:35 - Tier-0 activities (25' - Pablo & Gianfranco)
• 16:00 - Discussion (30')
• 16:30 - End of meeting

Attendants

• CSCS:
• CMS: Christoph Grab
• ATLAS: Gianfranco Sciacca
• LHCb: Roland Bernet

Minutes

## LHCb

- Site is okay and things are working fine.

- Higher failure rates on Piz Daint, not correlated with the type of job, which should be followed up.

- The problem is that Vladimir does not follow up (problem disappears and he does not care anymore). Roland shall speak with Vladimir to try and see what to do.

## ATLAS

- Site looks fine, comparable with LHEP

- arc04 is behaving badly towards SAM tests (jobs work well, though). It will be followed up between ATLAS and CSCS

- Failed WC is high, which needs to be checked (it might be already solved).

- We should have a separate meeting regarding putting ATLAS dCache pools under NGDF (lead by Gianfranco, with Stefano and Pablo).

- Regarding Tapes, Gianfranco will lead the dicsussion with ATLAS but CSCS would like to be involved in the technical discussion (e.g. use Swift instead of S3).

## CMS

- CSCS went down in the classification quite significantly

- Resolve times are good (fast, once start working on the issues) but it takes much longer before that.

- Accounting monitoring issues are still present and makes it difficult to judge how much is being delivered. CSCS plots will show this more precisely.

## CSCS

- Pledge page split for each VO should include % next time (to help see the fair-share effect),

- CSCS should check if Slurm is killing jobs for excessive time, this might explain why LHCb has that many failed pilots

- Pablo to send a doodle for next F2F in January

- Worth checking with Pascuale, who is already running on UserLab for LHC on GPUs, who also has experience in running in JupyterHub

- Follow-up on open tickets in GGUS 132927 and 133787.

- For Tier-0: CMS may face limitation on the firewall on the SWITCH side, good to know in case of trouble

Other Action items

Attachments

• 20180621_F2F_CSCS.pdf: 20180621_F2F_CSCS.pdf

• 20180621_-_T0_Spill-over_presentation_for_CHIPP_F2F.pdf: 20180621_-_T0_Spill-over_presentation_for_CHIPP_F2F.pdf

• UNIBE-LHEP-20180621.pdf: UNIBE-LHEP report

• UNIGE-DPNC-20180621.pdf: UNIGE-DPNC Tier3 report

• ATLAS-report-20180621.pdf: ATLAS VO T2 report