[Clas12_verystrange] Fwd: [Clas12_first_exp] Analysis trains and skims

[Nicholas Zachariou]

Hi all,

I cant join the meeting today. Will read the mi utes today and send an email if I have things to add with respect to analysis trains.

Nick

On Aug 2, 2018, 14:55, at 14:55, Eugene Pasyuk <pasyuk at jlab.org> wrote:
>This is something we need to discuss at today's meeting: what skimming
>we would like to request. Be prepared with you suggestions. 
>
>-Eugene 
>
>----- Original Message -----
>
>| From: "Raffaella De Vita" <Raffaella.Devita at ge.infn.it>
>| To: "Eugene Pasyuk" <pasyuk at jlab.org>
>| Cc: "clas12 first exp" <clas12_first_exp at jlab.org>
>| Sent: Thursday, August 2, 2018 8:49:31 AM
>| Subject: Re: [Clas12_first_exp] Analysis trains and skims
>
>| Dear Eugene,
>| has Latifa mentioned in her emails yesterday, the plan for the first
>| experiment is to have skims collected by next Wednesday. However, it
>| would be good to get request before the end of the week, tomorrow
>| EOB, to be able to run some tests during the weekend and check the
>| skim sizes.
>| Best regards,
>| Raffaella
>
>| Eugene Pasyuk wrote:
>
>| | Raffaella,
>| 
>
>| | Any definite date we need to come up with the train requests?
>| 
>
>| | -Eugene
>| 
>
>| | From: Raffaella De Vita
>| 
>| | Sent: Wed Aug 01 22:16:50 EDT 2018
>| 
>| | To: clas12_first_exp at jlab.org
>| 
>| | Subject: [Clas12_first_exp] Analysis trains and skims
>| 
>
>| | Dear All,
>| 
>| | here is more information about the status of analysis trains and
>| | about the feedback that would be useful to have from collaborators
>| | to start more accurate tests.
>| 
>
>| | Gagik has released the first version of the analysis train
>| | software.
>| 
>| | - Analysis trains are conceived to do "event selection": they use
>| | DSTs as input, i.e. cooked files with all events but only the banks
>| | that are relevant for the analysis (see Nathan's documentation at
>| | https://clasweb.jlab.org/wiki/index.php/CLAS12_DSTs ), and for now
>| | to output skims for different event topologies with the same hipo
>| | format and the same banks of the input files.
>| 
>| | - Different skims, defined based on user requests, make the train
>| | "wagons". After collecting user requests for wagons, trains will be
>| | run centrally by a single chef, to optimize the efficiency of the
>| | skimming process and avoid I/O problems that are expected to arise
>| | with several people trying to access large DST volumes
>| | simultaneously.
>| 
>| | - Skim conditions can be defined based on the number and type of
>| | final state particles as explained in Gagik's documentation at
>| |
>https://userweb.jlab.org/~gavalian/docs/sphinx/hipo/html/chapters/analysis_train.html#event-filters
>| | .
>| 
>
>| | To define the first trains and start testing the overall process,
>| | we
>| | would like to ask collaborators to come up with requests for final
>| | state topologies for their favorite reactions:
>| 
>| | - check the instructions at
>| |
>https://userweb.jlab.org/~gavalian/docs/sphinx/hipo/html/chapters/analysis_train.html#event-filters
>| | and send us your "wagon" definition;
>| 
>| | - keep in mind that, for a skim to be useful, it should correspond
>| | to
>| | a small fraction of the input data; you can estimate the reduction
>| | factor of your proposed skimming condition using the sample DSTs
>| | available in /work/clas12/clas12/data/calib/dst_5bp6p1/; the
>| | overall
>| | train output size (sum of all skims that will be collected) should
>| | be less than 50% of the input DST;
>| 
>| | - once requests will be collected and reviewed to remove possible
>| | duplications, a train will be assembled and tests will begin.
>| 
>
>| | Best regards,
>| 
>| | Raffaella
>| 
>
>| | Latifa Elouadrhiri wrote:
>| 
>
>| | | Dear all,
>| | 
>| 
>| | | The meeting this morning is cancelled.
>| | 
>| 
>| | | The meeting agenda for next week will focus on the following:
>| | 
>| 
>| | | Spring Run
>| | 
>| 
>
>| | | * Status of the data processing
>| | 
>| 
>| | | * Analysis trains for each one of the major analysis group:
>| | | please
>| | | send me the requested filtering so far I have the one from SIDIS
>| | | (Harut) and From Nucleon Structure (Ralf).
>| | 
>| 
>
>| | | Fall Run
>| | 
>| 
>
>| | | * We will review where we are in term of tracking efficiency
>| | | based
>| | | on
>| | | the latest release and make decision on the luminosity for the
>| | | upcoming run
>| | 
>| 
>| | | * List of run coordinators
>| | 
>| 
>| | | * Run plan
>| | 
>| 
>
>| | | Best regards,
>| | 
>| 
>| | | Latifa
>| | 
>| 
>
>| | | _______________________________________________
>| | 
>| 
>| | | Clas12_first_exp mailing list Clas12_first_exp at jlab.org
>| | | https://mailman.jlab.org/mailman/listinfo/clas12_first_exp
>| | 
>| 
>| _______________________________________________
>| Clas12_first_exp mailing list
>| Clas12_first_exp at jlab.org
>| https://mailman.jlab.org/mailman/listinfo/clas12_first_exp
>
>
>------------------------------------------------------------------------
>
>_______________________________________________
>Clas12_verystrange mailing list
>Clas12_verystrange at jlab.org
>https://mailman.jlab.org/mailman/listinfo/clas12_verystrange
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/clas12_verystrange/attachments/20180802/8c68aa20/attachment-0002.html>