Thomas Padioleau

https://github.com/kokkos/kokkos/issues/1950

In some situations it can be useful to reinterpret the support of a `ChunkSpan`: ``` ChunkSpan chk; DiscreteDomain dom; ChunkSpan reinterpreted_chk(chk.data_handle(), dom); ``` This way is unsafe because the constructor...

Use a signed integer type for DiscreteElementType

1

With the recent possibility for mdspan to choose the `index_type`, I think we should a signed integer type common for `DiscreteElementType`, `std::extents` and iterators difference_type that is to say `std::ptrdiff_t`.

> I can merge but what would be the remaining issue ? The issue was about dangling pointers and this seems to fix it ? We may have one remaining...

Unification of the interface of multi-dimensional algorithms

2

I suggest that we try an implementation of the `for_each` algorithm independent of the `DiscreteDomain` and `DiscreteVector` classes. I would prefer an implementation that should work for any class that...

Decouple discrete dimensions from discrete spaces

1

As for now, discrete dimensions are represented by the discrete spaces themselves. For example this forces the definition of two classes to differentiate nodes from cells in a 1d mesh....

This is a separate issue, but we should really align the constructors and assignment operators _Originally posted by @jbigot in https://github.com/CExA-project/ddc/issues/210#issuecomment-1781008555_