{ "passed": true, "finished_at_utc": "2026-09-14T23:58:33.129788+00:00", "gpu": "NVIDIA A100-SXM4-40GB", "torch_version": "2.5.1+cu124", "workspace": ":16:8", "numerical_validation": { "passed": true, "device": "NVIDIA A100-SXM4-40GB", "checks": 212, "maximum_abs_error": 1.9073486328125e-06, "tolerance": { "atol": 2e-05, "rtol": 0.003 }, "cases": [ { "depth": 1, "config": { "depth": 1, "alpha": 0.5, "seed": 781, "epochs": 2, "learning_rate": 0.1, "batch_size": 8, "momentum": 0.9, "weight_decay": 0.0 }, "passed": true, "epochs": 2, "batch_sizes": [ 8, 8, 3 ], "complete_replay_byte_repeatable": true, "predictions_match_independent_eager": true, "saved_core_activation_storages": 1, "saved_core_activation_bytes": 984, "saved_parameter_references": 2 }, { "depth": 2, "config": { "depth": 2, "alpha": 0.5, "seed": 781, "epochs": 2, "learning_rate": 0.1, "batch_size": 8, "momentum": 0.9, "weight_decay": 0.0 }, "passed": true, "epochs": 2, "batch_sizes": [ 8, 8, 3 ], "complete_replay_byte_repeatable": true, "predictions_match_independent_eager": true, "saved_core_activation_storages": 1, "saved_core_activation_bytes": 984, "saved_parameter_references": 4 } ], "scope": "Both depths; every gradient, parameter update and momentum state versus independent ordinary eager autograd/SGD, complete captured scores and exact replay-reset checks. Test uses only generated synthetic data.", "cache_runtime": { "cublas_workspace_config": ":16:8", "configured_before_cuda_initialization": true, "frozen_learner_sha256": "c395a8b7bc2951e3fdab5c5f5edf5ad2d5357de4e9170e52b988f4312e7169c5", "wrapper_sha256": "98fedf67ef167aa76eba7cb5669e1c404e0734b58b855e80ba04bd932c30c40f", "scope": "Library workspace configuration only; original architecture, seeds, normalization, permutations, optimizer and training procedure." } }, "api_cli_smoke": { "passed": true, "train_examples": 19, "query_examples": 7, "batch_sizes": [ 8, 8, 3 ], "predictions_equal": true, "final_parameters_equal": true, "final_velocity_equal": true, "scores_equal": true, "repeated_api_replay_byte_equal": true, "query_label_archive_rejected": true, "late_cuda_initialization_rejected": true, "config": { "alpha": 0.5, "batch_size": 8, "momentum": 0.9, "weight_decay": 0.0, "seed": 11, "depth": 2, "epochs": 2, "learning_rate": 0.1 }, "metadata": { "config": { "depth": 2, "alpha": 0.5, "seed": 11, "epochs": 2, "learning_rate": 0.1, "batch_size": 8, "momentum": 0.9, "weight_decay": 0.0 }, "parameter_count": 7554, "train_count": 19, "test_count": 7, "fresh_initialization_per_run": true, "checkpoint_loaded": false, "normalization": "4*x-0.5 then append one zero coordinate", "initialization": "branch normal(0,0.05/sqrt(41)); standard torch Linear head; seed-only", "optimizer": "SGD momentum; zero initial velocity; gradient mean cross entropy", "shuffle": "independent PCG64 permutation each epoch, seed-only", "augmentation": "none", "input_hashes": { "train_images": "6f7857a5ab4f5906449dc5e0a77169cdd278ec6467f7c719c0674bf30fe92320", "train_labels": "35864d3ab5f96c46765a769b204fea92d262c22ff03400891a966d6856cc439b", "test_images": "9aded67e5b6dd91ed2f719a5e21567e9490b73149d222748786b82adbb763814" }, "epoch_permutation_sha256": [ "b239ea133199776c85c1b5d0d50d72c764c25ab003d72d4eb8fc1b02f30e1760", "6a3ed395ba80879cb44f13e214a3a0fd4addb0dd340eb9057e4944bba5490aad" ], "initial_parameter_sha256": { "weights.0": "194490b683f6426b65457a6725f0646768f8d46a361d9b125cfc768ab614f8fb", "weights.1": "bcbcbf732d68415f6c7c393c31343810467d8a86951e70237f6c36712785dd02", "weights.2": "60acda6b3f2f888c9f70f9c2d0ebb53e66d3deb3e1ba760160b87d76f0a92b98", "weights.3": "16f24aea0689177ce23b7d09de49339a0fa0a0ba75753a10a85ed850a7083cc8", "head.weight": "39bc6f6f4720618f6da778924cc306b6f5a0865d4042c58771d4c93cb573b512", "head.bias": "5ce9e9fee433d39fa1edf54bebdd7bf9e6686a86a38b65c7862577d8faf1379d" }, "final_parameter_sha256": { "weights.0": "5af7ad8626c3526f336a4858fdd491f95fb313962eb5d5adc97d95a053190a98", "weights.1": "1dd5de76ebd502455588adabb0e7d826e748003534faf788b4ab615456ba3997", "weights.2": "6e20eb168fba5e6bcd0dd67df513f10cad7e274f4baa562a375533bd7ae0c04f", "weights.3": "bddfa861b3107118ec3405b592f38221e70d9e2b237251e9b022f6cb54403b24", "head.weight": "da5aa66e9d69fd49c27c4bce015bb3c154069c2bb23da316828de6e5543bb7bd", "head.bias": "56a2175b2e7858df286ced613fe83b810f38ee43243d8adb89689dab413bc313" }, "final_velocity_sha256": { "weights.0": "78eb643f40786bb2fc2c821977fe8f245f223be1d34c12272e8d73f5f2a5a835", "weights.1": "c4e84e746e14b71df62a2f0161cfd4911acbd4eeaf76b4b492ce93076ecdf67c", "weights.2": "564cbfad9913364383ac715268a08f8df07b01b19820fc43203fccab89bb55e9", "weights.3": "878697677ba2acfec7482a48c7cde0236b8a1c7f1743f951a50c805f515d7a02", "head.weight": "6ce16a5df76abf757bcfb08a08fbe6c8905eebe482281aa732496709053d7c43", "head.bias": "9055e3a8111319e8faaef3b6a613260894349187ba089f2ee496f03c8b9d6ba5" }, "state_vector_sha256": "40643d8c3f735fd42b7bf281994cf8097cc34a89dc6f24716136c732fa42bdf7", "predictions_sha256": "d26d5950aa69714ade2a42d92aaa14bec670b97d127a78663f389f4566f8d4e6", "scores_sha256": "bc3f71c10ae0befa2263a490f668e32ba4b955bbd337d61ad2337a386b8905ba", "preparation_seconds": 0.46710023300000003, "run_count": 1, "validation": { "passed": true, "device": "cpu", "checks": [ { "dtype": "torch.float64", "depth": 1, "passed": true, "forward_bitwise_equal": true, "maximum_gradient_abs_error": 1.3877787807814457e-17, "inverse_max_abs_error": 2.220446049250313e-16, "saved_activation_storages": 1, "saved_activation_bytes": 1968, "saved_parameter_references": 2 }, { "dtype": "torch.float64", "depth": 2, "passed": true, "forward_bitwise_equal": true, "maximum_gradient_abs_error": 1.3877787807814457e-17, "inverse_max_abs_error": 4.440892098500626e-16, "saved_activation_storages": 1, "saved_activation_bytes": 1968, "saved_parameter_references": 4 }, { "dtype": "torch.float32", "depth": 1, "passed": true, "forward_bitwise_equal": true, "maximum_gradient_abs_error": 0.0, "inverse_max_abs_error": 2.9802322387695312e-08, "saved_activation_storages": 1, "saved_activation_bytes": 984, "saved_parameter_references": 2 }, { "dtype": "torch.float32", "depth": 2, "passed": true, "forward_bitwise_equal": true, "maximum_gradient_abs_error": 1.4901161193847656e-08, "inverse_max_abs_error": 2.384185791015625e-07, "saved_activation_storages": 1, "saved_activation_bytes": 984, "saved_parameter_references": 4 } ], "scope": "Identical weights; ordinary autograd versus custom reconstruction for inputs and every parameter. First-order differentiation only." }, "reversible_core": true, "retained_core_states": 1, "core_saved_bytes_per_example": 328, "head_reversible": false, "input_lift_injective": true, "timing_scope": "run resets weights/gradients/momentum, normalizes raw train and query pixels, copies resident epoch permutations, trains and predicts. Excludes setup, CPU permutation generation, allocation, transfer, capture and diagnostics.", "cache_runtime": { "cublas_workspace_config": ":16:8", "configured_before_cuda_initialization": true, "frozen_learner_sha256": "c395a8b7bc2951e3fdab5c5f5edf5ad2d5357de4e9170e52b988f4312e7169c5", "wrapper_sha256": "98fedf67ef167aa76eba7cb5669e1c404e0734b58b855e80ba04bd932c30c40f", "scope": "Library workspace configuration only; original architecture, seeds, normalization, permutations, optimizer and training procedure." } } }, "source_sha256": { "learner.py": "c395a8b7bc2951e3fdab5c5f5edf5ad2d5357de4e9170e52b988f4312e7169c5", "cache_runtime.py": "98fedf67ef167aa76eba7cb5669e1c404e0734b58b855e80ba04bd932c30c40f" }, "runner_sha256": "4e288e723a0c9b8e2015d7bf337290de9a221fa0f59f98d5184d78a32465386f", "execution": { "app_id": "ap-kjVIow6HkClfG1hTlMYsQk", "max_gpu_workers": 1, "worker_finished": true, "lifecycle": "Ephemeral Modal run; CLI exit stops this validation app.", "shutdown_verified_at_utc": "2026-09-14T23:58:58.197032+00:00", "all_validation_apps_stopped_zero_tasks": true, "app_listing_records": [ { "app_id": "ap-kjVIow6HkClfG1hTlMYsQk", "description": "sutro-rev88-cache-runtime-validation-20260914", "state": "stopped", "tasks": "0", "created_at": "2026-09-14 16:58:12-07:00", "stopped_at": "2026-09-14 16:58:34-07:00" }, { "app_id": "ap-jPIWKFdqvAhMvzSA42FoE0", "description": "sutro-rev88-cache-runtime-validation-20260914", "state": "stopped", "tasks": "0", "created_at": "2026-09-14 16:57:28-07:00", "stopped_at": "2026-09-14 16:57:55-07:00" } ], "prior_attempt": { "app_id": "ap-jPIWKFdqvAhMvzSA42FoE0", "status": "GPU checks returned but local result deserialization failed; runner torch version field converted to plain string before rerun" }, "concurrency": "At most one worker in either validation app; attempts ran sequentially. No profiling app was modified or stopped." } }