Grid Cafe 2013

WLCG EXPO Post Mortem

  • Massimo
    • Video: I have the impression the most appreciated was the 'grid in 3 minutes' from fnal. Simple, captivating, fast. The 'data processing' was nice for the atmosphere but too complex (said that I find it great!) The TED one was possibly not appropriate for such an event/location (it was in an flow area but it required attention and listening. The other 2 were more "self-describing")
    • GoogleEarth: Very nice as usual. I think there is a bug: after ~24h it stops updating and it cycles on the same outdated time interval over and over (restart fix it)
      In a couple of cases we 'lost' the KLM file/config which required manual intervention.
      The interactive posts were good for families parking kids while they were asking questions: brilliant smile
    • Posters: Nice and necessary. Most of the people look at pictures only (as expected
    • Wall of Screen: I was glad most of the people were amazed when I was showing where top users were running their jobs in real time: the user names (chinese, italians, french...) and the execution site cocktail (US, Brazil, Estonia...) gives really the feeling of WLCG!
      I used a lot the MonaLisa 6-year activity summary: I could explain that we had to work a lot before LHC to set up the Grid and that after the first data data analysis continues even when the beam is paused.
      The message 'Invented (also) here was very clear'
    • Clocks: Nobody complained of the BNL clock being frozen (while a kid discovered GoogleEarth was not updated any longer wink
    • Flow: The expo was running (Sunday) very often at its limit: it was intended as something for interested people so just walking through was not enough and people (seemed to) like to stop and ask questions. Since most of the people were coming after the CC visit we had to cope with 'waves' of visitors because the CC visits were synchronised. Maybe staggering the French and the English visits (2 movies) could help?
    • Location: On Saturday it looked almost impossible to go the the bd 31 due to too many white-red stripes. This was fixed on Sunday. I think that the R2 would be a better location for future events


* Freebies * WLCG stickers * WLCG brochures

Notes... Google Earth WLCG displays (4 monitors?) to play with Statistics Wall - a series of posters showing WLCG Monitoring screen grabs (to be updated once a day), with 'did-you-know' type numbers (e.g. 70PB of data stored at CERN, 1.5 million jobs a day, linked to Wigner by 2 x 100 GB/s lines… etc)

  • output.pdf: Slides from Massimo (theory to raw data and back)

Wall of screens

In two tabs open:

      • ATLAS: ""
      • CMS: ""


The material for the poster is under GridCafePoster2013

Misc material

Costing evaluation and unrelated things have been dumped in GridCafe2013BrainDump
Topic attachments
I Attachment History Action Size Date Who Comment
Unknown file formatdocx Massimo_old_version.docx r1 manage 54.7 K 2013-07-17 - 11:14 CatharineNoble previous text for posters
Unknown file formatdocx OpenDay2013_postertext.docx r1 manage 134.5 K 2013-07-16 - 17:00 CatharineNoble Welcome poster
PDFpdf Strength_in_numbers_AP_v2.pdf r1 manage 234.4 K 2013-07-16 - 15:31 AndrewPurcell Tiers and networking poster could perhaps look something like this...
PDFpdf Tim_Smith_Big_Data_final.pdf r1 manage 43.7 K 2013-06-12 - 16:32 MassimoLamanna  
Unknown file formatdocx WLCG_Postertext_copyedit_AP.docx r1 manage 18.6 K 2013-07-18 - 09:04 AndrewPurcell  
PDFpdf output.pdf r1 manage 846.0 K 2013-06-12 - 18:00 MassimoLamanna Slides from Massimo (theory to raw data and back)
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Topic revision: r27 - 2013-10-02 - MassimoLamanna
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