prepare_fine_boundary accepts a FixedPatchSet2D: objects are projected once
onto the level-wide fine grid (FixedPatchSet2D.fine_origin = (0, 0), same
coarse cell-edge -> fine cell transform), each circle must lie inside one
patch, coarse transfer cells are checked against the covered union, and body
ids stay object positions, so the existing jet one-body-per-jet, overlap and
(receiver, dir) writer checks run once over the whole level (caller obj_id
cannot bypass them). The stepper no longer rejects fine_objects/jets with
several patches; blocked link tables, BFL and the jet amplitude cache are
reused unchanged. No kernel change. README/docstring scope updated.
Tests: CPU translation/ids/rejections (outside one patch, one jet over two
bodies at zero amplitude); GPU one body via the new path == single-patch path
(both modes), two bodies (+jets, amplitude switch) == tiled single (bitwise).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Doc-only: child coordinates in L1 window cells, three arrays in/out, 1:2:4,
single body-free chain; example reuses the accepted 16/24/24 fixture.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
step() did 'c, f = self._levels', which raises for three levels before any
launch (root review). The child level is driven from the fine hops. Other
_levels uses are per-level loops or explicit indices. README multipatch
example now defines rest locally and states coarse/fine NaN separately.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
FixedPatchSet2D.fine_layout rejects non-positive, float, bool or wrong-length
block sizes with ValueError before any modulo (was ZeroDivisionError/TypeError).
The face gap-4 GPU test now checks raw owner cores directly by kind/covered
for every patch (ACTIVE finite, OUTER/holes/covered NaN; INNER not asserted),
not only the masked download and reversed-order parity. README documents the
body-free multipatch call, scope and level-wide fine shape.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- README: close the Manual stream control code fence before the new
section; snippet now builds rest-equilibrium inputs (runnable as shown).
- Example: diagnostics use the known fluid-leaf masks (uncovered coarse
minus slot-mode wall rows; fine ACTIVE minus solids) and raise on any
non-finite population or rho <= 0 there instead of filtering by
finiteness. No solver changes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
examples/fixed_patch_circle.py: 32x24 coarse, patch (8,6,24,18), circle
(16,12) R2.15 in the cell-edge frame with the tested 0.7/0.85 aperture;
--mode periodic|slot_reservoir, --speed (+/-, 0 passive), optional
--fine-block BY BX, default 128 coarse steps; rest-equilibrium
postcollision initialization, caller-owned context, fluid-only leaf
mass/density/speed printed every 32 steps; no output files.
README: experimental backend usage and scope (limits, cell-edge frame,
whole-allocation divisibility, fine_block as AMR infrastructure without
speedup claim, unavailable features). No solver changes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Replace split zero_force_segment / zero_sensor_segment with unified
zero_obs_async() — a single memset covers all three obs segments
(force, torque, sensor), resetting the step accumulator.
- Add _obs_accum_steps counter so read_*(normalize=True) returns the
physically meaningful per-step average for all telemetry fields.
- Sensor now always applies area-normalisation internally; the normalize
parameter only controls the additional time-normalisation step.
- run() gains zero_obs=True parameter (default) to control reset-on-step.
- 7 new integration tests covering accumulation, zeroing, and normalise.
- Fix bug in test_sensor_accuracy.py (undefined loop variable i).
- Bump version to 0.4.0 for the API change.
Co-authored-by: Cursor <cursoragent@cursor.com>
- Add runtime body topology sync (add_body/remove_body + sync_bodies)
with recompile, DDF patch (feq + BFS inward fill), and commit.
- Unify action/obs flow: set_body/set_force are now host-only;
run() auto-uploads action and downloads obs via CUDA stream.
- Add read_body(id) -> BodyTelemetry and read_bodies() for DRL loops.
- Add FRC_REGION flag (0x0800) for force_region cells.
- Extract equilibrium helpers (lbm/equilibrium.py) and DDF patch module
(body/ddf_patch.py).
- Merge recompile / _runtime_recompile into single _recompile().
- Add n_objects to checkpoint; validate on load.
- Add test suite: 40 unit + 19 integration tests (59 total).
- Add conftest.py and docs/tests_overview.md for test documentation.
- Update README.md and CONFIG.md for new API.
Co-authored-by: Cursor <cursoragent@cursor.com>
TRON
