P1 (8/n): three-level GPU/CPU tests use the level-list constructor

KW becomes levels() (scalar L1 + scalar L2, per-level blocks, objects,
Jets). All rejection cases are kept per level. Two cases change branch:
L2 bodies/Jets with no nested child (legacy 'child_objects/child_jets
require a nested child') are now an entry for a level that does not
exist ('needs one entry per level'); several L1 patches + scalar child
now meets 'a scalar child requires a scalar parent'. Both still reject
before CUDA. Assertions unchanged.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Claude
2026-10-21 01:59:37 +00:00
co-authored by Claude Opus 5.5
parent 0fcd4ac4cb
commit 2be80324ad
@@ -27,7 +27,16 @@ from test_refinement_blocked_base import raw
CFG = LBMConfig(nx=16, ny=16, viscosity=.1)
L1, L2 = (4, 4, 12, 12), (8, 8, 16, 16)
KW = dict(fine_block=(4, 4), base_block=(4, 4), child=L2, child_block=(4, 4))
B = (4, 4)
def levels(l1=L1, l2=L2, blocks=(B, B, B), objects=((), (), ()), jets=((), (), ())):
"""Level-list keywords for the scalar L1 patch with one scalar L2 child."""
return dict(refinements=[l1, l2], level_blocks=list(blocks),
level_objects=list(objects), level_jets=list(jets))
KW = levels()
def child_body(spec=None):
@@ -52,26 +61,29 @@ def mocked_child():
patch.object(compiler, "load_module", return_value=module), \
patch.object(cuda, "mem_alloc", side_effect=lambda size: Mock()), \
patch.object(cuda, "memcpy_htod"):
return FixedPatchStepper(CFG, L1, context=context, child_objects=[child_body()],
child_jets=[child_jet()], **KW)
return FixedPatchStepper(CFG, context=context,
**levels(objects=((), (), (child_body(),)), jets=((), (), (child_jet(),))))
class ThreeLevelCPU(unittest.TestCase):
def test_rejections_before_cuda(self):
context = object() # never activated: every case must fail first
bad = (dict(KW, child_block=None), dict(KW, fine_block=None),
dict(KW, fine_objects=[circle()]), dict(KW, child=(4, 8, 16, 16)),
dict(KW, child_block=(5, 4)))
bad = (levels(blocks=(B, B, None)), levels(blocks=(B, None, B)),
levels(objects=((), (circle(),), ())), levels(l2=(4, 8, 16, 16)),
levels(blocks=(B, B, (5, 4))))
for kw in bad:
with self.subTest(kw=kw), self.assertRaises(ValueError):
FixedPatchStepper(CFG, L1, context=context, **kw)
for kw in (dict(child_objects=[child_body()]), dict(child_jets=[child_jet()]),
dict(KW, child_jets=[child_jet()])):
FixedPatchStepper(CFG, context=context, **kw)
# L2 bodies/Jets without an L2 level (one entry too many), and an L2 Jet without a body.
two_level = dict(refinements=[L1], level_blocks=[None, None])
for kw in (dict(two_level, level_objects=[(), (), (child_body(),)]),
dict(two_level, level_jets=[(), (), (child_jet(),)]),
levels(jets=((), (), (child_jet(),)))):
with self.assertRaises(ValueError):
FixedPatchStepper(CFG, L1, context=context, **kw)
with self.assertRaises(ValueError): # several L1 patches + child: not yet
FixedPatchStepper(LBMConfig(nx=32, ny=16, viscosity=.1), ((4, 4, 12, 12), (20, 4, 28, 12)),
context=context, **KW)
FixedPatchStepper(CFG, context=context, **kw)
with self.assertRaises(ValueError): # several L1 patches + scalar child: not yet
FixedPatchStepper(LBMConfig(nx=32, ny=16, viscosity=.1), context=context,
**levels(l1=((4, 4, 12, 12), (20, 4, 28, 12))))
def test_four_halo_bfl_steps_and_fresh_middle_feeds(self):
@@ -156,7 +168,7 @@ class ThreeLevelGPU(unittest.TestCase):
def test_equilibrium_is_kept_on_every_level(self):
from CelerisLab.cuda.context import CudaContext
feq = np.asarray(compute_feq_d2q9(1.0, .03, -.02), np.float32)[:, None, None]
with CudaContext(0) as ctx, FixedPatchStepper(CFG, L1, context=ctx, **KW) as run:
with CudaContext(0) as ctx, FixedPatchStepper(CFG, context=ctx, **KW) as run:
shapes = ((16, 16), run.patch.fine_shape, run.child_patch.fine_shape)
run.initialize(*(np.broadcast_to(feq, (9, *s)).copy() for s in shapes))
run.step(8)
@@ -169,7 +181,7 @@ class ThreeLevelGPU(unittest.TestCase):
def test_nonequilibrium_masks_and_fresh_middle_feeds(self):
from CelerisLab.cuda.context import CudaContext
with CudaContext(0) as ctx, FixedPatchStepper(CFG, L1, context=ctx, **KW) as run:
with CudaContext(0) as ctx, FixedPatchStepper(CFG, context=ctx, **KW) as run:
p1, p2 = run.patch, run.child_patch
run.initialize(state(16, 16, 1), state(*p1.fine_shape, 2), state(*p2.fine_shape, 3))
f = run._levels[1]
@@ -205,8 +217,9 @@ class ThreeLevelBodyGPU(unittest.TestCase):
CFG, velocity=0., wall_normal_velocity=.001, wall_slot_width=4,
y_wall_bc="on_site_velocity", top_wall_bc="reservoir")
with CudaContext(0) as ctx, FixedPatchStepper(
cfg, L1, context=ctx, coarse_boundary=mode, child_objects=[child_body(spec)],
child_jets=jets, **dict(KW, child_block=block)) as run:
cfg, context=ctx, coarse_boundary=mode,
**levels(blocks=(B, B, block), objects=((), (), (child_body(spec),)),
jets=((), (), tuple(jets)))) as run:
run.initialize(*(state(*level.shape[1:], i + 1) for i, level in enumerate(run._levels)))
snapshots = []
for stop in (0, 1, 2, 4, 8):