[Users] ET Meeting Minutes

[Frank Loeffler]

Hi,

Present were: Bruno, Eloisa, Erik, Frank, Ian, Matt, Peter, Steve, and Zach.

Zach mentioned that once the release is done he would like to get the
Illinois MHD code into the ET as fast as possible. The necessary changes
to Carpet have already been made (staggered operators).

Bruno mentioned that it might be beneficial to have the determinant
of the metric as extra GF because it might/is used in a lot of places.
Performance tests would need to be done to see what the impact of that
would be.

Bruno also would like to see a function that would return, in some form
or another, the checked out version of the ET - to be used in some of
his code. It was suggested to introduce this in EinsteinBase, after the
release.

Ian mentioned that lately he has trouble running out of memory, although
Carpet doesn't report increased usage. He sees signs of memory
fragmentation and is interested to know if others see similar problems.

Peter did performance tests of the rewrite branch of McLachlan, and
found at most a few percent slowdown. However, some interesting
parameter setting haven't been tested by this yet.


Release details:

Relevant wiki page:
  https://docs.einsteintoolkit.org/et-docs/Release_Details

Release time frame: get everything possible done _this week_, release
next week.

Thorns generated by Kranc will be checked/regenerated by Peter.
The test gallery examples will be tested/updated by Peter and Frank.
Frank will also update the tutorials, where necessary. We will also need
to consolidate all the tutorials that have been written at some point,
and in some cases got forgotten.

Results from automated tests can be found here:
  https://build.barrywardell.net/view/EinsteinToolkitMulti/job/EinsteinToolkitReport-sandbox/

Queenbee will be added to this list, once a suitable configuration is
generated (Peter), the same holds for Comet (Erik). Supermuc is unlikely
to be added to that list, but will be tested manually by Bruno.

Stampede-mic is (still) not working, and will not be part of the
release. Pandora also shows a lot of failures, and due to its age and
decreased interest will be dropped.

Systems with a few failures will be looked at: mike (Peter), shelob
(Frank)

Standard machine files that will be tested are:
 - Debian (Frank)
 - Ubuntu (Bruno)
 - Fedora (Steve)
 - Mac OS (Erik & Ian)

The release name will be "Hilbert".

Frank Loeffler

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