[Users] meeting minutes

[Roland Haas]

Present were: Roland, Frank, Philipp, Peter, Erik, Christian, Josh, Bruno

ET summer workshop:
* want to offer new users workshop again
* want to attach it to existing conference/workshop
* Christian is hosting a summer school on astrophysics at Caltech in
summer.
- try to attach to this
- school ends on Saturday, ET workshop Mo-Tue
- apply for support for students
- wait for logistics to be sorted out at Caltech (exact dates, rooms)

MHD:
* Bondi test now works for 5M, 900 iterations using smoothing initial data
*  characteristic speeds: Bruno is working on them, worked on it during
the weekend
* compared to constraint transport Philipp found more noise in
refinement boundaries when using divergence cleaning
* suggestion to use carpet::use_overlap_zones = yes which might help
(Philipp will also try the TOV star with this)
* refluxing: Roland looked at his commit and does not understand why
this should ever have worked. Tried refluxing with a magnetic field and
found that it does not conserver sum(Bcon). Refluxing with constraint
transport is broken since capturing the fluxes has to be done
differently for constraint transport
* Philipp has manged to fix his c2p failures
* Bruno will try CarpetEvolutionMask to see if this helps avoid aborts
du to spurious NaN values

Yours,
Roland







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