CANoe Demo版本质解析:许可证机制与安全边界
2026/10/4 8:05:54
## 1. 核心设计目标 ### 预注册护栏要求 | 护栏项 | 实现方式 | |--------|----------| | 1. 摄/化仅为计算策略标签 | 通过 `allow_drift` 和 `correct_drift` 实现自由度漂移控制 | | 2. D 组仅做算力对标 | 通过 `run_group_D_offline` 实现独立算力评估 | | 3. R 记账必须同时覆盖 body / boundary | 通过 `ResidualLedger` 类实现体/边界残区分离记账 | | 4. 三组必须独立 ctx | 通过 `SimContext` 类实例化独立上下文 | | 5. 扰动算子校准 | 通过 `calibrate_perturbation_strength` 实现扰动强度统一 | | 6. 体内不可逆性测量 | 通过 `body_dissipation` 探针实现自由度丢失检测 | | 7. C 组纠偏判断 | 通过 `should_sample` 和 `correct_drift` 实现条件纠偏 | | 8. 三组 compute_steps 口径一致 | 通过 `compute_steps` 计数器统一计数 | | 9. validation 条目结构化 | 通过 `build_validation` 实现验证条目结构化 | | 10. D 组不产出指标 | 通过 `run_group_D_offline` 实现指标隔离 | ## 2. 关键组件实现 ### 2.1 残区账本 (ResidualLedger) ```python @dataclass class ResidualLedger: body_ledger: List[float] = field(default_factory=list) boundary_ledger: List[float] = field(default_factory=list) def charge_body(self, amount: float): if amount > 0: self.body_ledger.append(amount) def charge_boundary(self, amount: float): if amount > 0: self.boundary_ledger.append(amount) def total(self) -> float: return sum(self.body_ledger) + sum(self.boundary_ledger) def body_total(self) -> float: return sum(self.body_ledger) def boundary_total(self) -> float: return sum(self.boundary_ledger)@dataclass class SimContext: contract_id: str residual_r: ResidualLedger = field(default_factory=ResidualLedger) invariant_history: List[float] = field(default_factory=list) platform_heights: List[float] = field(default_factory=list) compute_steps: int = 0 samples_used: int = 0 corrections_used: int = 0 def reset(self): self.residual_r = ResidualLedger() self.invariant_history = [] self.platform_heights = [] self.compute_steps = 0 self.samples_used = 0 self.corrections_used = 0def reversible_step(state: Dict[str, Any], t: int) -> Dict[str, Any]: return {k: v for k, v in state.items()} def compute_invariant(state: Dict[str, Any]) -> float: return state.get("invariant", 0.0) def read_platform(state: Dict[str, Any]) -> float: return state.get("platform", 0.0) def boundary_cost(pre: Dict[str, Any], post: Dict[str, Any]) -> float: return abs(read_platform(pre) - read_platform(post)) def body_dissipation(pre: Dict[str, Any], post: Dict[str, Any]) -> float: lost_dofs = [k for k in pre if k not in post] if lost_dofs: return float(len(lost_dofs)) return 0.0def invariant_drift(ctx: SimContext) -> float: if not ctx.invariant_history: return 0.0 c0 = ctx.invariant_history[0] return max(abs(c - c0) for c in ctx.invariant_history) def platform_stable(ctx: SimContext, window: int = 10) -> float: recent = ctx.platform_heights[-window:] if len(recent) < 2: return 0.0 mean = sum(recent) / len(recent) var = sum((x - mean) ** 2 for x in recent) / len(recent) return var def probe_residual_concentration(ctx: SimContext) -> Dict[str, Any]: total = ctx.residual_r.total() boundary_share = ctx.residual_r.boundary_total() body_share = ctx.residual_r.body_total() return { "total": total, "boundary_share": boundary_share, "body_share": body_share, "body_share_zero_confirmed": body_share == 0.0, }def should_sample(t: int, rate: float) -> bool: if rate <= 0: return False period = max(1, int(1.0 / rate)) return (t % period) == 0 def allow_drift(state: Dict[str, Any], budget: float) -> Dict[str, Any]: drifted = dict(state) for k in drifted: if k == "invariant": continue drifted[k] = drifted[k] # 占位:接入真实漂移算子 return drifted def correct_drift(state: Dict[str, Any], c_ref: float) -> Dict[str, Any]: corrected = dict(state) corrected["invariant"] = c_ref return correcteddef calibrate_perturbation_strength( perturb_fn: Callable, state0: Dict[str, Any], target_delta: float, steps: int = 100, tolerance: float = 1e-3, max_iterations: int = 50, ) -> Callable: low, high = 1e-6, 1.0 best_fn = perturb_fn for _ in range(max_iterations): mid = (low + high) / 2.0 def scaled_perturb(state, t, scale=mid): return perturb_fn(state, t, scale=scale) total_delta = 0.0 test_state = dict(state0) for t in range(steps): pre = dict(test_state) test_state = scaled_perturb(test_state, t) delta = sum( abs(pre.get(k, 0.0) - test_state.get(k, 0.0)) for k in pre if k != "invariant" and k in test_state ) total_delta += delta avg_delta = total_delta / steps if abs(avg_delta - target_delta) < tolerance: best_fn = scaled_perturb break elif avg_delta < target_delta: low = mid else: high = mid best_fn = scaled_perturb return best_fndef run_group_A( ctx: SimContext, state0: Dict[str, Any], perturb_body: Callable, steps: int, ) -> Dict[str, Any]: state = dict(state0) c0 = compute_invariant(state) ctx.invariant_history.append(c0) ctx.platform_heights.append(read_platform(state)) for t in range(steps): pre_state = dict(state) state = perturb_body(state, t) state = reversible_step(state, t) post_state = dict(state) ctx.compute_steps += 1 diss = body_dissipation(pre_state, post_state) if diss > 0: ctx.residual_r.charge_body(diss) c = compute_invariant(state) ctx.invariant_history.append(c) ctx.platform_heights.append(read_platform(state)) return { "group": "A_body_perturbation", "invariant_drift": invariant_drift(ctx), "platform_variance": platform_stable(ctx), "residual": probe_residual_concentration(ctx), "compute_steps": ctx.compute_steps, "samples_used": ctx.samples_used, "corrections_used": ctx.corrections_used, }def run_group_B( ctx: SimContext, state0: Dict[str, Any], perturb_boundary: Callable, steps: int, ) -> Dict[str, Any]: state = dict(state0) c0 = compute_invariant(state) ctx.invariant_history.append(c0) ctx.platform_heights.append(read_platform(state)) for t in range(steps): pre_state = dict(state) state = reversible_step(state, t) post_state = dict(state) post_state = perturb_boundary(post_state, t) ctx.compute_steps += 1 cost = boundary_cost(pre_state, post_state) if cost > 0: ctx.residual_r.charge_boundary(cost) c = compute_invariant(state) ctx.invariant_history.append(c) ctx.platform_heights.append(read_platform(post_state)) state = post_state return { "group": "B_boundary_perturbation", "invariant_drift": invariant_drift(ctx), "platform_variance": platform_stable(ctx), "residual": probe_residual_concentration(ctx), "compute_steps": ctx.compute_steps, "samples_used": ctx.samples_used, "corrections_used": ctx.corrections_used, }def run_group_C( ctx: SimContext, state0: Dict[str, Any], perturb_she: Callable, steps: int, drift_budget: float, sample_rate: float = 0.1, ) -> Dict[str, Any]: state = dict(state0) c0 = compute_invariant(state) ctx.invariant_history.append(c0) ctx.platform_heights.append(read_platform(state)) for t in range(steps): pre_state = dict(state) state = allow_drift(state, drift_budget) ctx.compute_steps += 1 if should_sample(t, sample_rate): ctx.samples_used += 1 c_now = compute_invariant(state) if abs(c_now - c0) > 1e-9: state = correct_drift(state, c0) ctx.corrections_used += 1 cost = boundary_cost(pre_state, state) if cost > 0: ctx.residual_r.charge_boundary(cost) ctx.invariant_history.append(compute_invariant(state)) ctx.platform_heights.append(read_platform(state)) else: state = reversible_step(state, t) c = compute_invariant(state) ctx.invariant_history.append(c) ctx.platform_heights.append(read_platform(state)) return { "group": "C_she_hua_perturbation", "invariant_drift": invariant_drift(ctx), "platform_variance": platform_stable(ctx), "residual": probe_residual_concentration(ctx), "compute_steps": ctx.compute_steps, "samples_used": ctx.samples_used, "corrections_used": ctx.corrections_used, }def run_group_D_offline(reference_metrics: Dict[str, Any]) -> Dict[str, Any]: return { "group": "D_reductionist_benchmark", "role": "compute_benchmark_only", "participates_in_validity": False, "compute": { "branches_enumerated": reference_metrics.get("branches", 0), "samples_total": reference_metrics.get("samples", 0), "corrections_total": reference_metrics.get("corrections", 0), "total_steps": reference_metrics.get("steps", 0), }, }def build_validation(results: Dict[str, Any]) -> List[Dict[str, Any]]: validation = [] a_body = results["A"]["residual"]["body_share"] validation.append({ "rule": "A_body_residual_zero", "passed": a_body < 1e-9, "message": "" if a_body < 1e-9 else "A.body_residual > 0:P 层可逆性被破坏,需检查 reversible_step", }) a_bnd = results["A"]["residual"]["boundary_share"] b_bnd = results["B"]["residual"]["boundary_share"] validation.append({ "rule": "B_boundary_residual_dominant", "passed": b_bnd > a_bnd, "message": "" if b_bnd > a_bnd else "B.boundary_residual 未显著高于 A:边界扰动未生效", }) a_steps = results["A"]["compute_steps"] c_steps = results["C"]["compute_steps"] c_samples = results["C"]["samples_used"] validation.append({ "rule": "C_compute_saving", "passed": (c_steps + c_samples) < a_steps, "message": "" if (c_steps + c_samples) < a_steps else "C 总开销未低于 A:摄化未压低算力", }) a_drift = results["A"]["invariant_drift"] c_drift = results["C"]["invariant_drift"] validation.append({ "rule": "C_invariant_protected", "passed": abs(c_drift - a_drift) < 1e-6, "message": "" if abs(c_drift - a_drift) < 1e-6 else "C.invariant_drift 与 A 不一致:摄化可能破坏拓扑保护", }) validation.append({ "rule": "D_excluded_from_validity", "passed": results.get("D") is None or not results["D"].get("participates_in_validity", True), "message": "" if (results.get("D") is None or not results["D"].get("participates_in_validity", True)) else "D 组产出不应参与平台有效性判定", }) return validationdef run_topology_control_experiment( base_contract: str, state0: Dict[str, Any], perturb_body: Callable, perturb_boundary: Callable, perturb_she: Callable, steps: int = 1000, drift_budget: float = 1e-3, sample_rate: float = 0.1, target_delta: float = 0.01, reference_metrics: Dict[str, Any] | None = None, ) -> Dict[str, Any]: perturb_body_cal = calibrate_perturbation_strength(perturb_body, state0, target_delta) perturb_boundary_cal = calibrate_perturbation_strength(perturb_boundary, state0, target_delta) perturb_she_cal = calibrate_perturbation_strength(perturb_she, state0, target_delta) ctx_A = SimContext(contract_id=base_contract) ctx_B = SimContext(contract_id=base_contract) ctx_C = SimContext(contract_id=base_contract) result_A = run_group_A(ctx_A, state0, perturb_body_cal, steps) result_B = run_group_B(ctx_B, state0, perturb_boundary_cal, steps) result_C = run_group_C(ctx_C, state0, perturb_she_cal, steps, drift_budget, sample_rate) results = { "A": result_A, "B": result_B, "C": result_C, "D": None, } if reference_metrics: results["D"] = run_group_D_offline(reference_metrics) validation = build_validation(results) return { "experiment": "TOPO-CTRL-001", "contract": base_contract, "results": results, "validation": validation, "archive": "GZ-SNAP/TOPO-CTRL-001", }