The meeting was combined with the Steering Group meeting with notes available at:
https://indico.fnal.gov/event/63151/attachments/176121/239165/2024%20LArSoft%20Work%20Plan.pdf
The meeting was combined with the Steering Group meeting with notes available at:
https://indico.fnal.gov/event/63151/attachments/176121/239165/2024%20LArSoft%20Work%20Plan.pdf
The January 2024 LArSoft Offline Leads status update was handled via email and a google document.
LArSoft – Erica Snider
DUNE – Heidi Schellman, Tingjun Yang, Tom Junk
DUNE will start work this period on the Spack migration now that the LArSoft Spack build was made available. We have already been in contact with Steve White, Marc Mengel, Patrick Gartung and Kyle Knoepfel on the subject. We will need to keep SL7 build nodes and interactive nodes as long as possible – there have been proposals to shut them down in March but we would like them longer. We also are attending the container task force meetings and have a container that works for builds and will test the current worker node container again.
LArSoft comment: The project pushed back on the original March 20 suggestion, and SCF Dept Head agreed to allow at least some build nodes to remain up beyond that date. A suggested compromise shutdown date is mid-May. LArSoft (tentatively) responded that this would be acceptable. EOL is end of June.
ICARUS – Daniele Gibin, Tracy Usher
No Report
LArIAT – Jonathan Asaadi
No Report
MicroBooNE – Herbert Greenlee
No Report
SBND – Andrzej Szelc
No Report
SBN Data/Infrastructure – Steven J. Gardiner, Giuseppe B. Cerati
No Report
Please email Katherine Lato or Erica Snider for any corrections or additions to these notes.
The meeting was combined with the Steering Group meeting with notes available at:
LArSoft Offline Leads 11/15/23 Meeting
Attendees: Herb Greenlee, Tom Junk, Will Foreman, Giuseppi Cerati, Erica Snider, Katherine Lato
At the meeting, we went over the draft of the 2024 work plan for LArSoft.
Number one priority continues to be multi-threading and High Performance Computing (HPC) with several people working on this in 2024. Notably, SciSoft has effort available to make algorithms run on GPUs. Requirement is that they be relatively slow, in LArSoft, and amenable to acceleration with a GPU. There was a follow-on question about GPU as a service. This is described at: https://larsoft.org/using-gpu-as-a-service-in-larsoft/. SciSoft believes this is ready to run at scale, so just need to work out the logistics of spinning up the GPU server somewhere.
Spack migration has a deadline of Q2 2024 in order to provide time for experiments to complete their migrations in advance of the June 2024 SL7 EOL. AL9 requires Spack, since there will be no UPS support. This work seems close, though we still do not have a detailed timeline to completion. Comment: Experiments have changes to make, so do not want to be pinched for time. Response: Given that all experiment code has been migrated to cetmodules, the procedure for getting from there to a Spack build should be straight-forward. Expect that any issues will be related to getting the experiment-specific product stacks under Spack. Q: Containers should provide some cover? Yes, should provide a buffer to the June 2024 EOL. Generally, the process will be that AL9 and SL7 will co-exist for some time to allow experiments to migrate. Spack has to come first.
Support for multi-experiment event display has been on the wish list for a while so that upper management understands that multiple experiments have requested this.
A new item in this year’s work plan are updates to the LArSoft infrastructure. These include, but are not limited to:
Appendix B is a short summary of our major observations from one-on-one meetings with each experiment in September and October of 2023. Common items include:
Round Robin:
Please email Katherine Lato or Erica Snider for any corrections or additions to these notes.
The meeting was combined with the Steering Group meeting with notes available at:
Offline Leads meeting – Aug 16, 2023
Attendees: Herb Greenlee, Thomas Junk, Tingjun Yang, Erica Snider, Katherine Lato
LArSoft Report:
MicroBooNE – Herb Greenlee
DUNE – Tom Junk
ArgoNeuT – Tingjun Yang
Please email Katherine Lato or Erica Snider for any corrections or additions to these notes.
The meeting was combined with the Steering Group meeting with notes available at:
Offline Leads Meeting, May 30
Attendees: Erica Snider, Tom Junk, Tracy Usher, Miquel Nebot, Tingjun Yang, Steven Gardiner, Katherine Lato
LArSoft Report: Erica
DUNE – Tom Junk
SBND – Miquel
Argonaut – Tingjun
SBN: Steven
ICARUS – Tracy:
Please email Katherine Lato or Erica Snider for any corrections or additions to these notes.
The April 2023 LArSoft Offline Leads status update was handled via email and a google document.
LArSoft – Erica Snider
DUNE – Heidi Schellman, Tingjun Yang, Michael Kirby Tom Junk
Just to let people be aware – Shekhar Mishra has been attempting to build LArSoft and dunes on AL9.1, as part of an AI/ML project for ICEBERG. He says he has been able to build LArSoft on AL9.1 and is working on dunesw. Not all dependent products of dunesw are built with mrb or have known build shims, such as duneanaobj and srproxy. Some products have hand-built UPS products – dunedaqdataformats, dunedetdataformats, highfive and nlohmann_json. The hand-built UPS products do not involve compiled code – they are header-only libraries and should just copy over to Shekhar’s setup. We have been answering Shekhar’s questions but not actually doing work to support this path. We have suggested using SL7 in a container on his AL9 machine as an interim solution.
ICARUS – Daniele Gibin, Tracy Usher
No Report
LArIAT – Jonathan Asaadi
No Report
MicroBooNE – Herbert Greenlee
SBND – Andrzej Szelc
No Report
SBN Data/Infrastructure – Steven J. Gardiner, Giuseppe B. Cerati
No Report
Please email Katherine Lato or Erica Snider for any corrections or additions to these notes.
Offline Leads – Feb. 22, 2023
Attendees: Giuseppi Cerati, Erica Snider, Katherine Lato
LArSoft report
SBN Data/Infrastructure – Giuseppi Cerati
Please email Katherine Lato or Erica Snider for any corrections or additions to these notes.