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May 2017 DMLT





  • University of Washington, Seattle, WA, Physics and Astronomy Building, 3rd floor.  Rooms vary by day–see agenda for locations.
  • Remote access via BlueJeans at or dial one of the following numbers:     +1.408.740.7256       +1.888.240.2560      +1.408.317.9253
          Connecting from a room system dial or and enter meeting ID  293724745 followed by #

Hotel / Per Diem

Here are hotel recommendations near the UW Campus and the Physics-Astronomy Building (PAB):

1. University Inn, (206) 632-5055   ** Erin Carlson has a room block at this hotel, but you must make your own reservation by Friday, April 28; see here for more info (Updated 4/19 1620 hrs). **

Approx. university rate is $189

2. Silver Cloud, (206) 526-5200 

$149 (+ parking, hot breakfast wifi) + tax (single king bed) + local shuttle (14ppl max), $159 (two queen beds)

3. Hotel Deca (206) 634-2000

Depending on the availability, it can vary from $111 to $157

Additional visitor information can be found here.

Planning to attend


Day #1: Tuesday May 9 - start 1:00PM

Apologies from Mario JuricRobert LuptonWil O'MullaneJohn Swinbank: patchy/no availability due to PST meeting.

13:00–15:00 room C341

    • Discuss document tree and list of documents for the review (Kian-Tat Lim)

15:00–15:30 break

15:30–17:30 room B305

    • Continue document tree discussion as long as it is productive
    • Otherwise time available for self-organizing breakouts. Suggested topics include:
      • SuperTask WG
      • F17 cross-WBS planning

17:30 End (or earlier if we make it)

18:00 Joint Dinner with PST (Ivar’s Salmon House)

Day #2: Wednesday May 10 (room B305)

WOM Slides for all topics

09:00–11:00 The NSF/DOE Review -

  1. Document pack - thanks to Ranpal for having a first go at this
  2. The agenda
    1. Overview by Wil O'Mullane
    2. Session chairs to present ~1 slide overview of plans & people they expect to be there


    • Whole DMLT: send comments on LDM-148 component diagram to Kian-Tat Lim
    • Kian-Tat Lim: produce finalised LDM-148 component diagram. 
    • Whole DMLT: submit suggested risks to Wil O'Mullane. Should include "What worries me is ..., impact on the project is ...", bonus points for "probability is ..., cost is  ...". 
    • Mario Juric: distribute guidelines for coding priorities of requirements to DMLT members (e.g. "will do", "may do", "won't do"). 
    • Science Leads: provide prioritized list of requirements to Wil O'Mullane, work with T/CAMs to ensure the expressed priorities are consistent with the plan. 
    • Whole DMLT: submit list of external data dependencies (e.g. reference catalogues, "auxiliary data") to Wil O'Mullane
    • Wil O'Mullane: understand project level requirements for "quick look" tooling. Ensure terminology used within DM is consistent with OSS (OSS-REQ-0057, etc). Agree with John Swinbank what should be included in NSF review presentations. 
    • John Swinbank: work with T/CAMs, Kevin to clean up & understand the contents of PMCS in a way that can be presented to the review panel. 
    • John Swinbank: ensure that interfaces from the Science Pipelines to other parts of the system (task framework, Butler, NCSA, ...) are represented at the ~1 slide level in review material.
    • Kian-Tat Lim: include material on system integration in review plenary session.

11:00–11:30 Break



    • Whole DMLT: give comments to Wil on LDM-294.  
    • T/CAMs: provide material on lead institutions for LDM-294.  
    • Kian-Tat Lim / Tim Jenness: produce (draft) trace table of requirements to components to go into LDM-294.  
    • Wil O'MullaneJohn Swinbank: rename “Infrastructure & Processing” to “Data Facility” on org chart.  
    • Robert LuptonJim BoschWil O'MullaneJohn Swinbank: convene small group to discuss product tree for DRP.  

13:00–14:00 Lunch (on your own)

14:00–15:30 Planning for F17

15:30–15:45 Break

15:45–17:30 Planning for F17 (continued)


17:30   End

Off-site Team Dinner

    • Reservation at Tai Tung, 655 S King St, Seattle, WA 98104 for 19:00 map
    • The reservation is under the name Simon Krughoff
    • A group will travel there by public transit after the meeting winds up for the day.
    • Round trip light rail tickets are $5 and available at the station for cash or plastic
    • There is street parking.  I think it's free after 6PM.
    • Travelers should deduct $34 from per diem for dinner meal allowance.

Day #3: Thursday May 11 (room B305)



    • John Swinbank: update DMTN-044 to reflect the acceptance of the SQuaRE provided binary release system, and that decisions about long-term release maintenance will be deferred until the release manager position has been filled, and place it in Docushare.  DM-10813 - Getting issue details... STATUS
    • Wil O'MullaneJohn Swinbank: ensure that responsibility for the maintenance of EUPS is well understood and included in the DM plan.  DM-10814 - Getting issue details... STATUS
    • Jeff Kantor provide network images/art suggestions for LSST Patch to Wil O'Mullane  

10:30–10:45 Break  - DMLT photo (in the rain ?)



    • Whole DMLT: review LDM-503 list of proposed tests (master schedule, §5). Send corrections, updates, additional suggestions to Wil O'Mullane.
    • Gregory Dubois-FelsmannFritz Mueller Submit LCR against DMSR (LSE-61) to incorporate the existing database performance requirements from the Data Access White Paper (Document-5373  (as a starting point - a later change request should cover a more comprehensive set of user data service performance metrics)

12:00–13:00 Lunch - WORKING LUNCH IN ROOM B305 (for Frossie, Wil, Simon, Gregory, John, Fritz, Xiuqin, KT, Jeff, Mario, Michael)

    • Continuation of prior discussion topics for select team members.

13:00–14:00 Videocon on NCOA -

14:00–15:00 Planning for F17 (continued)

    • Technical decision making
    • Pre-operations capacity planning (Margaret Gelman[15 minutes]
    • Pipelines/SUIT integration: "Objects" in SUIT/notebook are what? Astropy or/and LSST Stack objects?


    • Robert Lupton to review calculations in RFC-329 or delegate (likely to Bob Armstrong).
    • Mario Juric: any significant data usage at NCSA which is not recorded in LDM-503 master test schedule to Margaret Gelman 
    • Jim Bosch: provide sizes of individual data products (& persisted temporaries) to Margaret Gelman based on LDM-151.  Now DM-10812 - Getting issue details... STATUS
    • Mario Juric: convene working group on data compression (assignee changed from Wil O'Mullane per DMLT of 2017-06-12).
    • Robert LuptonGregory Dubois-Felsmann write specifications for user interface for reconstituting Python objects (including, e.g, HeavyFootprints) from a database-backed Butler.  - captured as DM-12275 - Getting issue details... STATUS .

15:00–15:30 Break


    • PVI Discussion  RFC-325 - Getting issue details... STATUS
    • Older data releases  RFC-336 - Getting issue details... STATUS
    • Heterogeneous focal plane  RFC-339 - Getting issue details... STATUS
    • Resolve outstanding cross-group & prioritization questions for F17 (continued)
      • T/CAMs should be ready to submit the plan for at least the first three months to Kevin within ~1 week from this session.

16:50 Closing remarks - (Wil O'Mullane)

17:00 End

Key Documents

Please submit comments requested above relative to these documents:

Pre-Meeting Planning


Preparing for DM Review.

Other Topics for the agenda (please add here any points you would like to discuss)

  • Science Platform development planning for 2017 (Gregory Dubois-Felsmann)
  • Planning for integration effort between HSC reprocessing and DAX+SUIT (Fritz MuellerUnknown User (xiuqin))
  • what hardware is to be used?
  • Are we going to provide a PDAC-like system for internal users to access reprocessed HSC?
  • What's the relationship of the above said system and the science verification?
  • Networks Status and Verification Plan (Jeff Kantor)
  • Summit Base ITC Design Tiger Team results to date (Jeff Kantor)
  • Binary release plans & developer workflow (John Swinbank)
  • We've discussed this in DMLT telecons
  • Completing LDM-151 revision, in particular as regards requirements tracing (John Swinbank)
  • Pre-operations capacity planning (Margaret Gelman)
  • Science Validation (Michael Wood-Vasey)

Topics requested by Wil O'Mullane