[Users] Meeting Minutes 2021-01-21

[Roland Haas]

Hello all,

for the SPECv8 contribution we had at one point mentioned 3 options
that we could propose:

* McLachlan's ccZ4 formulation (in master)
* McLachlan's Z4c formulation (in rhaas/Z4c)
* a version of McLachlan that pre-computes all derivatives as grid
  functions the way that the CUDA code does (in
  rhaas/separatedderivatives)

Please use this form:

https://docs.google.com/forms/d/e/1FAIpQLSdtnvxu-PA5gxY7o-fFWARPFOby8joz4-nC51ru_t3oKlJT7w/viewform?usp=sf_link

to voice preference for one or the other.

At this point none have been extracted and incorporated into the
min-driver used for SPEC.

Yours,
Roland

> Present: Yosef, Steve, Roland, Peter D, Bill, Kenneth, Atul, Karim, 
> Miguel, Zach
> Chair: Yosef
> Notes: Steve
> 
> SPEC Benchmark:
> ====================
> All paperwork is done.
> 
> Roland hasn't set the poll out, but ready to send out. All three 
> versions, though, compile and run. He had to
> modify Kranc.
> 
> Overview of CarpetX:
> ====================
> Can do some science but could use some real world workload
> No existing thorns work, but new thorns could be adapted.
> Can use GPUs (can run Hydro toy code)
> 
> Indicate interest in seeing the overview on Gitter chat
> https://urldefense.com/v3/__https://gitter.im/EinsteinToolkit/EinsteinToolkit?at=600712b2004fab4741504966__;!!DZ3fjg!pUhgFTuMQ9PienZhCRrABC7c2uSZXGjuO91MDrvPNvppA3STHoxrYe8Fq1Xxfq1B$ 
> 
> Yosef would like to attend but cannot login to Gitter
> 
> Maybe have an overview presented on the call?
> Maybe start regular presentations up again?
> Have Gabriele Rozzola give a talk?
> Seminars should be recorded. They can be edited.
>      Gabriele Rozzola accepted
> Old seminars: https://urldefense.com/v3/__http://einsteintoolkit.org/seminars/__;!!DZ3fjg!pUhgFTuMQ9PienZhCRrABC7c2uSZXGjuO91MDrvPNvppA3STHoxrYe8Fq14ZQ2zL$ 
> 
> Discussed Karima's issue with simfactory and the parfile. She should 
> send the parfile to the mailing list.
> 
> Open tickets:
> Python3 version of simfactory. Roland is still working on the survey for 
> which simfactory features are used. He will send the survey out.
> 
> Ticket 963, open since 2012. Peter Diener will take a look.
> Steve will try to look at 2462 to potentially approve it.
> Yosef looked at ticket 2486 on the call and approved it.
> 
> Feb 4:
>      Minutes: Roland
>      Chair: Yosef
> 
> _______________________________________________
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> Users at einsteintoolkit.org
> https://urldefense.com/v3/__http://lists.einsteintoolkit.org/mailman/listinfo/users__;!!DZ3fjg!pUhgFTuMQ9PienZhCRrABC7c2uSZXGjuO91MDrvPNvppA3STHoxrYe8Fq1eMGUNk$ 


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