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v68.2.0 — Deterministic Execution Engine

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@EmergentMonk EmergentMonk released this 17 Mar 03:21
· 2939 commits to main since this release
v68.2.0
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v68.2.0 — Deterministic Execution Engine
Overview

Introduces a deterministic test optimization layer that significantly reduces compute while preserving full correctness and reproducibility. This release transforms the test suite into a fast, state-aware validation system inspired by QEC decoding principles.

Added

Minimal validation primitives

minimal_parity_matrix_3x5, minimal_parity_matrix_4x6 for fast structural testing

Enables constant-time validation of core invariants

Ternary assertion layer (np.int8)

to_ternary, assert_no_ternary_errors, assert_strict_ternary_success

Vectorized correctness checks (+1 / 0 / -1) replacing loop-based assertions

Early-exit convergence detection

early_exit_convergence detects stability via windowed state deltas

Prevents unnecessary iterations in deterministic loops

Deterministic caching (bounded + safe)

LRU cache (OrderedDict) with _MAX_CACHE_SIZE = 32

SHA-256 stable keying for collision safety

Cached arrays are immutable and reused across calls

Markovian state detection (cycle sensor)

_state_hash (layout-independent via np.ascontiguousarray)

detect_state_cycle detects oscillations and repeated states

Works with short histories (min(window, len))

Changed

Cache function now typed as Callable[[], np.ndarray] for clarity and safety

Cache docstring clarified to reflect shared read-only instance semantics

Cycle detection improved to operate on short histories (no hard cutoff)

Fixed

Hashing now independent of array memory layout (prevents false mismatches for views)

Test isolation ensured via autouse cache reset fixture (no cross-test contamination)

Tests

+17 tests for ternary utilities, caching, and Markov detection

All 3773 tests passing

No regressions, no skipped changes introduced

Impact

Significant reduction in test runtime and variance

Deterministic early termination (convergence + oscillation detection)

Bounded memory usage and stable caching behavior

Foundation for future adaptive execution (v68.2.1+) and codebase-level intelligence (v68.3)

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