[Halld-offline] Software Meeting Minutes, March 2, 2022
marki at jlab.org
Wed Mar 2 19:43:49 EST 2022
Please find the minutes here
Minutes, GlueX Software Meeting, March 2, 2022
Present: Alex Austregesilo, Nathan Brei, Sean Dobbs, Bryan Hess, Mark
Ito (chair), Igal Jaegle, Richard Jones, David Lawrence, Curtis Meyer,
Keigo Mizutani, Wesley Moore, Simon Taylor, Beni Zihlmann
There is a recording of this meeting
on the ZoomGov site. (Passcode: htzd69.p)
Mark mentioned that there are *a series of pull requests from Simon*
responding to a request from Richard to modify Simon's recent changes to
the hddm_s schema, to support the CPP muon chambers, backward compatible
with existing hddm data. The pull requests are for halld_recon,
halld_sim, and hdgeant4. Once they work their way through the system, we
will need a new version set.
OSG/Offsite Computing Update
Bryan brought us up-to-date with work over the last few years to stand
up the infrastructure, both hardware and software, that allows us to use
the OSG and other off-site computing resources. Please see his slides
for the details. From the discussion:
* With the new token-based authentication used in version 3.6, there
is an issue with having multiple instances of the submit host on the
same physical node. We need this to support the GlueX, JLab, and EIC
VOs. A solutions is being developed.
* Bryan described the difficulty in exposing our large Lustre
partitions to access from offsite via XRootD.
* He described the plan to use existing file servers to carve out
space to serve out GlueX data on StashCache.
* Wes gave some details on a problem accessing StashCache data via
CVMFS from the farm. Work on this is on-going.
* Sean mentioned the need for GlueX to communicate our ideas on
OSG-related workflows to SciComp and for SciComp to keep us
up-to-date with current work and new directions in this area. Along
these lines, Wes expressed a desire for a channel where they can get
feedback on solutions that SciComp is pursuing. We agreed that we
should have regular meetings with interested parties to discuss
these topics, much as they were discussed at today's meeting. Bryan
will mention the concept at tomorrow's SciComp meeting (where the
other Halls are represented), Sean will put together a list of the
workflow ideas we are contemplating and Mark will arrange a kick-off
meeting at the end of March.
Review of Minutes from the Last Software Meeting]]
We looked at the minutes from February 16th meeting
We need to get going on a new system for producing containers. Related
to that Mark is working on adjustments to our builds so that there is no
difference between builds on the JLab CentOS 7 farm nodes and those
produced with a CentOS 7 container. Then these two builds can be
consolidated into one and this single build can be shipped to Oasis for
FAQ of the Fortnight: What do I have to know when transitioning
from SWIF to SWIF2?
We looked again at Alex's wiki page
giving advice on the topic.
Alex also mentioned that Chris Larrieu liked the related discussion on
the Software Help list
<https://groups.google.com/g/gluex-software/c/F3u3wQSS0CI>, but Chris
lamented the fact that folks in the other Halls will not benefit from
this and similar exchanges. Mark mentioned that we had proposed
upgrading from Mailman
some time ago, but that effort never got off the ground.
We went over the list of responsibilities
that will have to be taken over by others when the current Software
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