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ATLAS+CMS discussion of “Computers in the search for the Higgs Boson” for JCSS

ATLAS+CMS discussion of “Computers in the search for the Higgs Boson” for JCSS. Ian Fisk (FNAL) + Norman McCubbin (RAL). Quick summary.

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ATLAS+CMS discussion of “Computers in the search for the Higgs Boson” for JCSS

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  1. ATLAS+CMS discussion of “Computers in the search for the Higgs Boson”for JCSS Ian Fisk (FNAL) + Norman McCubbin (RAL)

  2. Quick summary • ATLAS + CMS have been invited to producea “special issue” forthe Journal for Computer and System Science (JCSS) on “Computing in the search for the Higgs boson”. • This is supported at spokesperson level and has been discussed since ~start of year within the experiments, and jointly (mainly Ian and Norman). • We are agreed that: • Although ‘Higgs’ is in title, this special issue is about computing+software (C+S) in general, and is not restricted to Higgs; • It is roughly analogous to the big papers (written separately by ATLAS and CMS) describing the detectors ‘as built’; • ‘Performance plots’ will be used by way of illustration, but this is NOT the comprehensive “Run 1 Performance” paper(s). • Noting the JCSS readership, we aim for sections/chapters to be ‘joint ATLAS/CMS’ where that is sensible and feasible. (eg Introduction.) ATLAS+CMS: JCSS 14 June 2013

  3. Outline • The most recent version (1st April) of the outline has headings: • Introduction (physics; computing ‘challenge’) • Overview (from collisions to publication) • On-line • Off-line processing • Distributed data-processing (but this is not the WLCG paper!) • Distributed analysis • Computing Project Management and Tools • Outlook • Interspersed with possible “Technology Themes”: • Databases • Algorithmic code • Grid • Visualisation • Multi-threading ATLAS+CMS: JCSS 14 June 2013

  4. Aim of today’s meeting • Discuss: • General approach (in terms of content); • Discussion of draft outline, including technology themes; • Modus operandi (scribendi??) • Time table • We (Ian and Norman) would like to suggest a “write something fast” approach: • Next week: capture outcome of this meeting, update outline, identify author groups of the various sections etc • Ask authorsto discuss among themselves, and come back with “~500 words per person” for a (half-day) meeting on July 16th (before Snowmass, EPS, vacations) to assess what works, what doesn’t, and adjust scope, contents etc accordingly. • Aim for first, very rough, assembly of text for early September. • (Delay will not make this easier to write .. ) ATLAS+CMS: JCSS 14 June 2013

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