Merge remote-tracking branch 'refs/remotes/lettucecfd/195-draft-a-new-release' into 226-feature-add-simple-first_examplypy

Author: PhiSpel

native_cuda_synopsis.md

@@ -0,0 +1,28 @@
+The native-cuda update introduced some major updates to the lettuce structure. Here, you find the main changes. Below, you find the steps to update your runfiles:
+
+## Changes
+
+1. `lt.Lattice` is deprecated.
+
+The `device` and `dtype` fields moved to `lt.Context`. The `Stencil` object or class (either works) is passed to `Flow.__init__`.
+
+2. `lt.Streaming` is deprecated.
+
+Streaming is now always handled as defined in `lt.StandardStreaming`.
+
+3. `lt.Stencil` is stored in a field of `lt.Flow` and `D` is now lower case.
+
+So, the Dimensions can be accessed via `flow.stencil.d` instead of `flow.units.lattice.D`.
+
+4. Further changes:
+- `lt.Collision` does not neet `lattice` definition.
+- `reporters` was renamed to `reporter`
+- `no_collision_mask` now includes the boundary's identifier (important for custom flows).
+- `flow.u_pu` directly returns velocity field in physical units as a property. Same counts for `flow.p_pu` (pressure) and `flow.rho_pu` (density).
+- `units` (a `lt.UnitConverter`) can be called from both `lt.Simulation` and `lt.Flow`
+
+## Updating runfiles
+1. Move device and dtype declarations into lt.Context and remove all lattice declarations.
+2. Move stencil declaration to lt.Flow and add context declaration.
+3. Remove lt.Streaming initialization and occurences.
+4. Rename reporters to reporter

requirements.txt

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 Click>=6.0
-torch>=2.1
+torch>=2.4
 numpy==1.26.4
 matplotlib==3.9.0
 pyevtk