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vertex centered grid functions by default: done
test multi-node GPU support: done
checkpoint / restart: done
test a qc0 run or similar to compare results and speed to Carpet w/o subcycling in time
subcycling in time, likely using runge-kutta prolongation
- allow flexibiliy of subcycling vs no subcycling on a per level case, currently partially implemented
- lead by Liwei Ji @lwJi, code at: https://github.com/lwJi/Infino.jl/tree/main
- ET wiki with information: https://docs.einsteintoolkit.org/et-docs/Prolongation
- CarpetX prolongation and subcycling notes
Con2Prim: as a first step we will use Reprimand to reduce the complexity of code we implement. Instructions for this are found here

Science runs would be say a MHD driven supernova with tracer particles and a neutrino evolution scheme. This would require these abilities:

cell centered (volume averaged) grid with AMR for fluid: done
vertex centered (sampled) grid with AMR for metric: done
staggered grid for magnetic field
subcycling in time
- Runge-Kutta prolongation into mesh refinement boundaries to avoid "buffer" zones (which AMReX may not support)
- notes on the Einstein Toolkit wiki
some sort refluxing for fluid due to subcycling in time
some sort of monopole avoiding prolongation scheme for B
some sort of scheme that conserves magnetic flux at mesh refinement boundaries
support for 2D (prevent refinement in the Z-direction)
interpolators to get values of fields at particle locations: done
reduction operators for min, max, sum etc.: done
checkpoint and recovery: done
3d output for visualization: done
GPU support
- for RHS calculation: done
- for AMR operators: done
- for everything else