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HSF Weekly Meeting #159, 21 February, 2019

Present/Contributors: Liz Sexton-Kennedy, Pere Mato, Daniel Elvira, Josh McFayden, Jim Amundson, Michel Jouvin, David Lange, Dario Menasce

News, general matters

• Many people absent this week from CERN due to school holidays.

Google Summer of Code 2019

• The answer from Google about HSF being validated as an umbrella this year will be known next week.
  • HSF has ~50 project proposals: more than last year. But the total number of proposals is similar (proposals are grouped by projects).
  • Total number of mentors ~100: lots of interest in the community means big success.

HSF/WLCG/OSG Workshop News and Planning

• Indico - registration is still open.
  • 210 people registered.
• There is a Google Sheet linked from the main page to help coordinate car sharing from Dulles (you take your own responsibility for this!).
  • If you are arriving/travelling from another airport you can also use that spreadsheet (just make it clear which airport you will be at).

Session Planning (see block timetable)

• Reminder: David Lange, Michel Jouvin and Graeme Stewart organising for HSF.

• General Sessions:
  • Plenary sessions all fixed now.
• HSF Sessions:
  • Distributed analysis and Simulation still have to fill the detailed timetable for their sessions (Wednesday/Thursday)
  • Software on Accelerators (2 slots).
    • Graeme, Michel, David L are convening
      • Confirmed all talks and discussion tome.
  • Reconstruction and real-time analysis: one talk proposed from Icecube not yet added
  • Training: session almost filled in
  • One spillover session still available but no request for it yet
  • Rooms:
    • Thursday we will need to make some use of the auditorium, which has not so great Vidyo.
      • Amber says that they are working on setting this up and we’ll do a ‘sound check’ soon, so hopefully ok.
  • For planning other HSF Parallel Sessions, see WG activity reports below.

Activity and Working Group Updates

General points:

• Reminder to make sure your WG page has
  • Brief description of the interests of the group
  • Information on how to join the group’s mailing list
  • Information on how to contact the convenors (convenor list or individual emails)
  • A link to the group’s Indico category

Event Generators

• Had first closed meeting (minutes) between the conveners
  • Essentially a roundtable on how best to follow up from the November WS and what needs to be done to finish the proceedings.

• Now will have regular open meetings every two-weeks, first is 28th Feb 16h00. Will announce to the mailing list as soon as contributions are confirmed.

• The TBC agenda items:
  • Understanding ATLAS & CMS resources computing - i.e. getting to the bottom of inconsistencies discussed at the workshop, mostly in CMS’s reported numbers.
  • Discussion on ATLAS-CMS sample sharing - starting with SUSY signal samples where some steps are already in place to move in this direction. We will see how we can best support this effort.
• Updates to the proceedings:
  • Clarifications on resources accounting (as mentioned above).
  • New work from Stefan getting Sherpa to run on Haswell and KNL, comparing their performance.
    • Could be useful to get this kind of ported code into the benchmarking suite.
    • Andrea will champion this, he sees this as an interesting contribution to the WLCG performance/ cost model and metric’s group (they will meet at HOW on Wed. morning).

Licensing

• Marco and Graeme to meet with CERN KT next week.

• No news from FastJet authors.

• CMS CB approved moving to Apache 2 in the same way as ATLAS (we, the field may need the LLVM exception since we like LLVM at the binary level depend on GNU licensed software, the foundation claims that GNU is not incompatible with Apache2)

• Both the CERN and FNAL KT people signed off on licensing Apache2 for their contributions to LLVM

• Pere was asked if FCC code should be made closed but this is being proposed for high level software, the concern could be revealing detector designs to competitors

Packaging

• Next meeting on 27 February.

AOB

• Graeme should be back next week to convene the meeting

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