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test: signed interface-probe trace diagnostic (--probe-trace)

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Test-only mechanism diagnostic, no pass gates. New pinned shear_probes.py:
24 fixed root-physical points on vertical/horizontal interface-normal
transects (>=8 root cells from corners), ACTIVE-leaf selection storing
level/i/j/actual centers, root-sync rho/ux/uy at root steps 0-128 and
1920-2048 (U512 every 4 lattice steps), analytic residuals at actual
centers, schedule/finite/600 kB validation. run_case: --probe-trace for
nested U128/U512/projected d3 and twin projected d2 (not with
--final-snapshot), shear_probes.py pin, probe-only steps skip metrics,
five qualification samples unchanged. shear_wave/shear_nested/shear_twin/
oracle byte-identical.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
ClaudeandClaude Opus 5.5 committed 2026-10-19 03:11:48 +00:00
1 parent 02bde0f751
commit 1e188e7419
4 files changed
+377 -3
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tests/validation/taylor_green/run_case.py
+42 -3
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@@ -25,6 +25,7 @@ NESTED_SHEAR = "nested_shear_n128" # fixed three-level/two-region shear preset
SHEAR_NESTED_SHA256 = "fa6cfe87fb4df8c6d732c637c885276833c81973b950c7724d734f8fc350bcb0"
TWIN_SHEAR = "twin_shear_n128" # depth-2 twin: nested L0->L1 boxes without L2
SHEAR_TWIN_SHA256 = "1cbf37f18e89aea577581631c4565f51e68d22a3739b698816ef64acbf2b2bb4"
SHEAR_PROBES_SHA256 = "98ea8090ace48f04b83dfb015db10e681e414e57eb748b34c0fbb90fb790d13b" # signed interface-probe mechanism diagnostic
def flow_functions(flow="taylor_green"):
@@ -94,7 +95,7 @@ def provenance(repo):
)
def verify_source(repo, revision, flow="taylor_green"):
def verify_source(repo, revision, flow="taylor_green", probes=False):
"""Exact clean harness commit, fixed production tree, and reviewed capture helper."""
import oracle
from tests.validation.multigrid import check_projected_pairs as gate
@@ -113,6 +114,13 @@ def verify_source(repo, revision, flow="taylor_green"):
if result["source_tree_sha256"] != SOURCE_SHA256:
raise RuntimeError("Wrong numerical source fingerprint")
result["build_capture_sha256"] = BUILD_CAPTURE_SHA256
if probes:
import shear_probes
module = harness / "shear_probes.py"
if (Path(shear_probes.__file__).resolve() != module
or hashlib.sha256(module.read_bytes()).hexdigest() != SHEAR_PROBES_SHA256):
raise RuntimeError("Wrong shear_probes module checkout or content")
result["shear_probes_sha256"] = SHEAR_PROBES_SHA256
if flow == "shear_twin":
import shear_twin
module = harness / "shear_twin.py"
@@ -206,6 +214,9 @@ def main():
"(scaled_n256: Taylor-Green; scaled_shear_n256: shear wave) or the "
"fixed three-level/two-region shear preset (nested_shear_n128) "
"or its depth-2 twin (twin_shear_n128)")
p.add_argument("--probe-trace", action="store_true",
help="signed interface-probe trace (nested U128/U512/projected d3, "
"twin projected d2); mechanism diagnostic, no gates")
p.add_argument("--final-snapshot", action="store_true",
help="nested_shear_n128 projected depth-3 only: final macro snapshot")
p.add_argument("--early-pressure", action="store_true",
@@ -216,6 +227,13 @@ def main():
if args.flow == "shear_wave" and (args.re != 100 or (args.depth == 3 and not nested)
or args.early_pressure):
p.error("shear_wave requires --re 100, depth 1 or 2 and no --early-pressure")
probe_cases = {(NESTED_SHEAR, 128, 1, "constant"), (NESTED_SHEAR, 512, 1, "constant"),
(NESTED_SHEAR, 128, 3, "projected_linear"),
(TWIN_SHEAR, 128, 2, "projected_linear")}
if args.probe_trace and (args.final_snapshot or (
args.diagnostic, args.n, args.depth, args.explosion) not in probe_cases):
p.error("--probe-trace requires nested U128/U512/projected depth 3 or twin projected "
"depth 2, without --final-snapshot")
if args.final_snapshot and not (nested and args.depth == 3
and args.explosion == "projected_linear"):
p.error("--final-snapshot requires nested_shear_n128 projected depth 3")
@@ -253,7 +271,8 @@ def main():
repo = args.repo.resolve()
sys.path[:0] = [str(repo / "src"), str(repo)]
source = verify_source(repo, args.expected_revision,
"shear_nested" if nested else "shear_twin" if twin else args.flow)
"shear_nested" if nested else "shear_twin" if twin else args.flow,
probes=args.probe_trace)
runtime = runtime_source(repo)
if args.dry_run:
print(json.dumps(dict(source=source, runtime_source=runtime, dry_run=True,
@@ -351,8 +370,23 @@ def main():
]
)
initial_mass = None
for step in sorted(set(main_steps + early_steps)):
probe_steps = set()
if args.probe_trace:
import shear_probes
probe_root = dict(zip(shear_probes.case_steps(args.n), shear_probes.STEPS))
probe_steps = set(probe_root)
probes = shear_probes.select(masks, args.n)
report["probe_trace"] = shear_probes.new_trace(
probes, cfg.viscosity, [args.diagnostic, args.n, args.depth, args.explosion])
for step in sorted(set(main_steps + early_steps) | probe_steps):
run.step(step - run.step_count)
if step in probe_steps:
trace = report["probe_trace"]
trace["steps"].append(probe_root[step]) # root-physical step
trace["values"].append(shear_probes.sample(
(run.download(),) if args.depth == 1 else run.download(), probes))
if step not in main_steps and step not in early_steps:
continue # probe-only step: no qualification metrics
row = sample(run, masks, step, args.n, cfg.viscosity, initial_mass,
metrics, args.depth)
row["step"] = step
@@ -405,6 +439,11 @@ def main():
),
flush=True,
)
if args.probe_trace:
try:
report["probe_trace"]["bytes"] = shear_probes.validate(report["probe_trace"])
except ValueError as error: # keep the scalar receipt; drop an invalid trace
report["probe_trace"] = dict(error=str(error))
report.update(
completed=True,
seconds=time.monotonic() - started,