OTP - Shift Classes

Updated: 27-03-2018

Based upon operational experience to date and after discussion in several venues and endorsement by the Executive Board, ATLAS Management has decided upon the following procedure for sharing of ATLAS Operation Tasks for 2010 and thereafter.

  1. Operation Tasks (OTs) are regrouped into three categories:
    • Class 1: ACR shifts - Central and Detector Shifts in ATLAS Control Room at Point-1.
    • Class 2: Other shifts - Additional shifts, including shifts in satellite control rooms, computing shifts, remote shifts, on-call shifts.
    • Class 3: Expert operation tasks - Operation tasks involving experts on systems, data preparation, computing, software.
  2. As before, Operation Tasks are defined by the Project Leaders and Activity Coordinators. Class 1 and Class 2 Operation Tasks have units of “shifts”. One shift unit corresponds to an 8-hour ACR shift or an equivalent workload (perhaps distributed over more than 8 hours, for instance on-call). Class 3 Operation Tasks have units of “FTE”.
  3. Within Class 1, weekend and night shifts carry a weight factor (1.31) that is double that of day and evening shifts on weekdays (0.66).
  4. Institutions are expected to contribute to each of the three classes according to their OT share. As of 2015 Class 1 and Class 2 are combined in OT one can therefore do either. Activities of one class cannot be freely substituted for activities of another class. For example, Class 3 OTs (expert operation tasks) cannot be substituted for Class 1 OTs (ACR shifts) or Class 2 (On-call shifts).
  5. A call will be sent to all Institutions for contributions to Class 1 and Class 2 OTs. The call will provide the number of shifts units expected for each Institution.
  6. A separate reminder will be sent to all Institutions for contributions to Class 3 OTs, providing the number of “FTE” expected for each Institution.
  7. In LS1 Class 1 and Class 2 shifts are multiplied by 1.5 and added to Class 3. A single report will be available. No special request is made for institutions to do Class 1 shifts during LS1. As all classes of shifts are added, institutes can contribute to any class to fill their OT.

Call for Class 1 and Class 2 Operation Tasks (shifts) for 2018

The total number of Class 1 and Class 2 Operation Tasks for the period from January 2018 until December 2018 has been estimated in consultation with the Project Leaders and Activity Coordinators. The number of shifts required from each Institution is calculated based on the estimated total number of shifts that must be filled and on each Institution’s Operation Task (OT) share. The Institution OT share is the Institution OT divided by the total ATLAS OT. The reference documents for OT share can be found under “Lists for the M-and-O and operations tasks calculations for 2018”, available from the Authorship Committee twiki page at https://twiki.cern.ch/twiki/bin/view/AtlasProtected/AuthorShipCommittee.

How many Class 1 and Class 2 shifts are requested?

The numbers of Class 1 shifts and Class 2 shifts corresponding to each Institution’s OT share for the period January 2018 until December 2018 are listed in the attached table "Required Shifts per Institution". Each institution is requested to perform both the number of Class 1 and Class 2 shifts listed. The record of each institution in performing its requested number of shifts over time is monitored for these classes. Weekly reports, showing the progress, are made available every week and can be consulted from the OTP Reports Page. Institutions that have not performed their share of past shifts should make up their past deficit now.

How can a given Institution contribute to Class 1 and Class 2 shifts?

Each Institution can contribute to the Class 1 and Class 2 shifts of any sub-system/activity specified in Table 1 below. The names of the corresponding contact persons are also provided in the table. There are two ways to contribute:

  1. Wait for the “shift call” email from the sub-system contact persons, and answer the call by specifying how much your Institution wants to contribute and what class of contribution (Class 1 or Class 2). Note that your Institution can contribute to more than one activity of Table 1.
  2. Contact directly the person(s) listed in Table 1, without waiting for the “shift call” e-mail. This is the recommended option if your Institution intends to contribute to a sub-system/activity or general shifts in which it did not previously participate.

There are several common ATLAS-wide Class 1 shift tasks that do not belong to any of the traditional projects and thus do not have a set of Institutions to rely upon to fill shifts. These tasks are the following: Shift Leader, Run Control Shifter, Data Quality and Shift Leader in Matters of Safety (SLIMOS). Therefore, every Institution is also encouraged to participate to these central activities beyond their traditional commitments.

Shifter training and documentation are provided for each activity, and are under the responsibility of the corresponding project leaders/ activity coordinators. Specific rules concerning shifts in ATLAS are available at: https://atlasop.cern.ch/shifts.

Please note that individuals committed to do ACR shifts in 2018 should perform between 18 and 21 shifts in the course of 2018, in order to ensure an appropriate level of expertise in the ATLAS Control Room.

Reminder concerning Class 3 Expert Operation Tasks

Class 1 and Class 2 shifts represent only a small fraction of the all Operation Tasks necessary to operate ATLAS. Class 3 OTs are expert operation tasks that are not shifts. Each Institution must contribute to Class 3 OTs as well as to Class 1 and Class 2. For Class 3 OTs, please contact the Project Leaders and Activity Coordinators in your area of interest (http://atlas.web.cern.ch/Atlas/Management/Organization.pdf).

Contacts (alphabetical)

For an up to date list of System Run Coordinators see https://atlasop.cern.ch/otp/RunCoordinatorList.php

Table 1: Contact Persons for Class 1 & Class 2 Shifts

ATLAS sub-system/ activity Contact Persons for Class 1 & Class 2 shiftsSorted descending
Luminosity Witold Kozanecki, Manuela Venturi
Detector Control System Stefan Schlenker
Computing Simone Campana, Armin Nairz
Software Rolf Seuster, David Rousseau
Muon Philipp Fleischmann, Claudio Luci
Beam Condition Monitor Nicola Venturi, Andrej Gorisek, Bostian Maciek
Larg Calorimeter Luis Hervas, Emmanuel Monnier
SLIMOS Kendall Reeves, Sergei Malyukov
Pixel Karolos Potamianos
CALO+Fwd Shifter Emmanuel Monnier, atlas-calofwd-shift-organisation@cernNOSPAMPLEASE.ch
Data Quality Elizaveta Shabalina, atlas-dataquality-conveners@cernNOSPAMPLEASE.ch
TRT Dominik Derendarz
Forward Davide Caforio, Sune Jackobsen, Joern Lange
SCT Dave Robinson
L1 Trigger Bruce Barnett (L1calo), Riccardo Vari, et al.
Trigger atlas-trigger-operation-coordinators@cernNOSPAMPLEASE.ch
Tile Calorimeter atlas-tile-rc@cernNOSPAMPLEASE.ch
Shift Leader atlas-run-coordinators@cernNOSPAMPLEASE.ch
Inner Detector atlas-id-runcoordinators@cernNOSPAMPLEASE.ch
DAQ Andrei Kazarov, Fabrice Le Goff
Run Control Andrei Kazarov, Fabrice Le Goff

-- ManuellaVincter - 2019-04-08

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