[Carpetx-developers] Weekly call at 11am Monday Eastern time

[Roland Haas]

present: Erik, Roland, Steve, Lucas, Cheng-Hsin, Philipp, Jay, Liwei, Yosef, Allen

Z4c
===

* not included in the ET 
* test cases that exist rely on other thorns not in the ET, eg qc0 which needs TwoPunctures
* want simpler test cases to include in ET

updates
*******

Steve & Lucas
=============

* globalderivatives are making progress
* has re-implemented MP projections, which were responsible for bugs seen before
* found issues when working with Zach and is now testing 1st and 2nd
  order derivatives
* would like to go back testing bbh simulations using the hybrid
  Runge-Kutta evolution schemes, Liwei is requesting access to mike to
  test

Yosef & Liwei
=============

* currently finds large values of computed Hamiltonian constraints in
  Z4c(ow)
* would need way to read in 3D output files as initial data using
  FileReader functionality, Erik says that this is implemented in CarpetX
* pull requests for CarpetX / Derivs should be reviewed
* discussed use of schedule.hxx functionality to implement traversal of
  schedule / calling scheduled functions used in ReadInterpolateX
* Erik and Liwei discussed design of ReadInterpolateX thorn and ways to
  implement this functionality by having Carpet write out the data
  instead of CarpetX reading them in

Allen
=====

* porting Hydro analysis thorns from Carpet to CarpetX
* Roland suggests using the AnyVector branch, might have issues with
  checkpoint / recovery but could also be Roland's use of Python
  interface to OpenPMD

Jay
===

* working on c2p for GPUs

Erik
====

* is debugging issues with checkpoint / recovery
* Roland mentions issue with openpmd seen by Maxwell Rizzo when testing
  on Anvil

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