Restores the PeriodicBlockStepper safeguard dropped in 8e1feff, for all
FixedPatchStepper levels: both G buffers, halo pairs and boundary columns
of every level are compared with cuda.mem_get_info() before the stream,
any module or any buffer exists, raising MemoryError('level buffers exceed
free device memory'). Transfer tables are not counted (lower bound).
Tests: the single-level MemoryError case is back beside the param-layout
check (no stream, no allocation); host test_single_level covers depth 1
and depth 2 (no stream, build or allocation) and the wait failure after a
good step (count stays 1). Driver-mocking fixtures report ample free memory.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The package already exposed it as CelerisLab.cuda.compiler; the module now
has that name and every tip caller, doc and current-tree test imports it
directly (no alias).
Historical-revision tooling is not edited: the Taylor-Green harness
(run_case.py, hash-pinned check_projected_pairs.py, assess receipts) only
runs against a135252, whose package has cuda/compiler_v2.py, and the J
campaign runners and dated docs describe past trees. Its two current-tree
tests now import that package from git (historical_package) instead of the
tip, and the kernel-root test first checks the accepted case.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
test_exchange_window, test_raw_exchange_gpu (one fine(block) helper for
the repeated circle+jet construction), test_refinement_jets,
test_multiple_pinned_remap_gpu and test_pinned_body_remap_gpu pass
refinements/level_* lists. Dense fine levels stay level_blocks=[None,
None|block] as before. Assertions unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Caller obj_id 99 spanning 2x2 fine blocks: driven rows carry the single
remapped owner 0 across several block ids, accepted; source id unchanged.
Caller ids (99, 7) under one tube are rejected at amplitude 0 and .002
on the 32x24 fixture; source ids unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
surface_link_velocity (the shared host check used by CurvedLinkSoA,
ObjectManager sync, prepare_fine_boundary and FixedPatchStepper) now
rejects a jet whose selected cut links carry more than one body id, at
any amplitude, before uploads. Identity is the scene-wide body id of the
physical cut-link list, so one body spanning storage blocks stays valid.
No body selector; empty-selection semantics unchanged.
Tests: two bodies under one jet rejected (amplitude 2e-3 and 0) on the
Simulation/manager path and on the fine path; separate jets on separate
bodies accepted on both; one fine body crossing 2x2 block seams accepted.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
FixedPatchStepper.set_jet_amplitude validates index/amplitude and builds
the new rows before touching the device; invalid input leaves the
instance usable. A copy/sync error marks it failed (as initialize/step/
download do) and re-raises; host state (_jets, blocked velocity table)
commits only after a successful upload. CurvedLinkSoA.set_jet_amplitude
likewise uploads a new array first and commits jets/surface_velocity
afterwards. Focused mocked-driver tests for dense and blocked copy
failure, invalid input and IndexError.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
FixedPatchStepper(..., jets=()) passes jets (coarse cell-edge frame, as
fine_objects) to prepare_fine_boundary, which runs the shared assignment
checks before CUDA. Dense fine path: assign_surface with jets and the
boundary's true hits. Blocked path: surface_link_velocity with jets/hits;
unit-amplitude shapes cached. set_jet_amplitude (new/ready only) validates
first, then rewrites the dense SoA column or the blocked jet rows and
re-uploads only the velocity buffer after a stream sync. Scheduling,
kernels and launch ABI unchanged.
tests/validation/multigrid/test_refinement_jets.py: mocked-driver CPU
checks and frozen GPU gates G1-G3 (layout identity, jet vs legacy <=1e-6,
amplitude switch).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
