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FNAL room: Dark Side-WH6NW - Wilson Hall 2nd fl North East
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## 180110 - Meeting
Attendance: Bo, Dominick, Luca, Vagg, Viktor, Matteo, Siew Yan
* topics
* presentation at the end of the week
* news
* Luca
* Vagg
* before Christmas, received analysis code from Dominick
* not blocked anymore
* start scalability test instantly
* 2012 open data
* bad results for the previous Viktor code
* new code works fine
* small problem with xrootd-connector
* didn't accept a single file
* will be resolved soon
* then will be put on public GitHub, include guidelines how to compile it
* Viktor
* try to send slides by tonight
* will include slides from Vagg
* need to change agenda names so that Viktor can submit slides
* Matteo
* CHEP conference: circulated the draft of abstract, was submitted to conference, waiting for conference acceptance
* abstract includes both intel and analysis thrust
* still need to understand if this is good for Andrew Melo
* progress on analysis thrust, together with Siew Yan
* new data tier from CMS: NanoAOD
* goal is to have a data format that is flat, small and that can serve from 30-50% of analyses
* avoids having to call CMSSW, but still a centrally produced data format
* Siew Yan already read NanoAOD, test already performed, following Melo's analysis use case and adapt it
* Padova group goal is to read NanoAOD
* Centrally produced samples are appearing
* Matteo will run the code everywhere, interested in portability experience
* need to move NanoAOD around if we want to test at different sites
* order of TB
* CERN openlab user meeting
* will try to chat with Claudio
* xrootd-connector
* not grid authenticated for now, on the list
* ROOT output discussion
* motivation: for fits, we currently need ROOT, usually the combine package is used, relies on ROOFIT
* ROOT output is currently not supported
* Viktor: possible, but would take time (and not in the context of the deepest project)
* Not a big problem, can still do everything for CHEP, but in the future we need the capability to interface with the tools of the collaboration
* Have a discussion in the future with Viktor, JimP, Vagg and others
* code
* 10 TB tests, multiple tests
* configuration of cluster will be sent to Intel, to use cofluent
* code currently has no support to run over multiple samples, can be implemented
* data and MC, slightly different event content
* for cluster tests, you want uniformity
* Dominick will test the code on data and MC, will try to run on both samples
* Vagg and Dominick will scale up
* access to both electron and muons in same ipython job
* it's possible, but it's complicated
* reason: SQL does not understand nested structures
* python does not have this issue, but you have the problem of double serialization
* Viktor and Dominick will write a purely python workflow to compare to the scale we have right now
* collect GitHub links with different code examples and basis from people
* Viktor, Dominick and Vagg, Matteo and Siew Yan, Melo
* send it to OLI, he will make a webpage
* Dominick had problems with all the cuts for the analysis
* AOD files didn't have all the information easy available, because muon branches are not all trivial but references
* Viktor: it is possible, somebody has to trace the CMSSW code and rewrite it in Scala
* NANOAOD does not have this problem