[Users] meeting minutes for 2019-06-13

Haas, Roland rhaas at illinois.edu
Thu Jun 13 09:35:45 CDT 2019

Present: Helvi, Roland, Peter, Yosef

ET tutorial server
* cannot currently create account requests via web-form: fixed as of
  beginning of week, was broken March till June
* compiling produces many server down / server up emails: still happens
  due to latency of frontend responding to http requests, could either
  ask to move VM to different node or to split system into "login" VM
  and "worker" VMs for users
* Roland to ask admins to move to a different hardware node

Provide compiled version of the ET
* https://bitbucket.org/einsteintoolkit/tickets/issues/2260/provide-compiled-et-code-on-tutorial
* useful for people that are less experienced in numerical work, which
  may also be the same group of people that are likely to have problems
  setting up docker
* Helvi may have time to try this out on her Ubuntu system, serving as
  a test-case since she has never used docker before

Memory issues:
* https://bitbucket.org/einsteintoolkit/tickets/issues/2194/memory-increase-during-regridding
* initial idea was that this could be communication buffers that were
  never shrunk
* patch that frees this memory was provided but does not seem to help
  in all cases
* two more cases that fail, small one by Miguel, large one by Gabriele
* memory usage in failing case by Miguel is very uneven, possibly due
  to communication buffers

ET US workshop at RIT
* broadcast will likely be done via bluejeans
* working on having camera and mike for remote participants to see the
  screen and the audience
* also for lunch discussion
* link will be send to mailing list and be available on workshop page
* have discussion about changed citation policy for ET during lunch

Gallery examples will be updated
* TOV: small version for online/jupyter tutorial needs to be uploaded
* BBH: in progress, waiting in queue on local cluster
* BNS: in progress, Peter travelling next week

Peter's self-force code:
* no updates, will discuss at Capra meeting next week

unanswered question on mailing list / open tickets sorted by update time
* none at this point

There will be no ET call next week (just after the ET meeting), next
call June 27th.


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