2026-04-16 05:28:09.704491: E external/local_xla/xla/stream_executor/cuda/cuda_platform.cc:51] failed call to cuInit: INTERNAL: CUDA error: Failed call to cuInit: UNKNOWN ERROR (303) I0416 05:28:09.820832 123205069130880 max_utils.py:238] Skipping jax distributed system due to skip_jax_distributed_system=True flag. I0416 05:29:09.750303 123205069130880 max_utils.py:800] System Information: Jax Version: 0.9.2 I0416 05:29:09.750408 123205069130880 max_utils.py:801] System Information: Jaxlib Version: 0.9.2 I0416 05:29:09.750444 123205069130880 max_utils.py:802] System Information: Jax Backend: PJRT C API TFRT TPU v6 lite Built on Apr 6 2026 20:48:10 (1775533690) cl/895581894 I0416 05:29:09.750472 123205069130880 train_utils.py:364] WARNING: 'dataset_path' might be pointing your local file system I0416 05:29:09.750551 123205069130880 train.py:818] [DECOUPLED NO-OP] skipping cloud diagnostics wrapper. W0416 05:29:09.842786 3743895 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 05:29:10.246138 123205069130880 maxtext_utils.py:1687] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1) I0416 05:29:10.343892 123205069130880 checkpointing.py:688] Setting up checkpoint logger... I0416 05:29:10.343987 123205069130880 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True I0416 05:29:10.344027 123205069130880 pytree_checkpoint_handler.py:577] save_device_host_concurrent_bytes=None I0416 05:29:10.344226 123205069130880 base_pytree_checkpoint_handler.py:411] Created BasePyTreeCheckpointHandler: use_ocdbt=True, use_zarr3=True, pytree_metadata_options=PyTreeMetadataOptions(support_rich_types=False), array_metadata_store=<orbax.checkpoint._src.metadata.array_metadata_store.Store object at 0x700d537f4f50>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB) I0416 05:29:12.670565 123205069130880 checkpointing.py:266] Enabling policy for fixed interval checkpointing. I0416 05:29:12.670742 123205069130880 checkpoint_manager.py:702] [process=0][thread=MainThread] CheckpointManager init: checkpointers=None, item_names=('items',), item_handlers={'items': <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7006d65a4ce0>}, handler_registry=None I0416 05:29:12.670970 123205069130880 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7006d65a4ce0>` for item "items" and save args `<class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeSaveArgs'>` and restore args `<class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>` to `_handler_registry`. I0416 05:29:12.671010 123205069130880 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7006d6546d80>` for item "metrics" and save args `<class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>` and restore args `<class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>` to `_handler_registry`. I0416 05:29:12.671039 123205069130880 composite_checkpoint_handler.py:505] Initialized registry DefaultCheckpointHandlerRegistry({('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeSaveArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7006d65a4ce0>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7006d65a4ce0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7006d6546d80>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7006d6546d80>}). I0416 05:29:12.671360 123205069130880 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.28 I0416 05:29:12.671410 123205069130880 async_checkpointer.py:177] [process=0][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>.<lambda> at 0x7006d7589940> timeout: 600 secs and primary_host=0 for async checkpoint writes I0416 05:29:12.803831 123205069130880 checkpoint_manager.py:1788] Found 0 checkpoint steps in gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints I0416 05:29:12.804084 123205069130880 checkpoint_manager.py:921] [process=0][thread=MainThread] CheckpointManager created, primary_host=0, CheckpointManagerOptions=CheckpointManagerOptions(save_interval_steps=1, max_to_keep=None, keep_time_interval=None, keep_period=None, should_keep_fn=None, best_fn=None, best_mode='max', keep_checkpoints_without_metrics=True, step_prefix=None, step_format_fixed_length=None, step_name_format=None, create=True, cleanup_tmp_directories=False, save_on_steps=frozenset(), single_host_load_and_broadcast=False, todelete_subdir=None, todelete_full_path=None, enable_hns=False, enable_background_delete=False, read_only=False, enable_async_checkpointing=True, async_options=None, multiprocessing_options=MultiprocessingOptions(primary_host=0, active_processes=None, barrier_sync_key_prefix=None), should_save_fn=None, file_options=FileOptions(path_permission_mode=None), save_root_metadata=True, temporary_path_class=None, save_decision_policy=FixedIntervalPolicy(interval=10), preservation_policy=LatestN(n=None), prevent_write_metrics=False, enable_should_save_is_saving_in_progress_check=True, enable_per_process_directory_creation=False), root_directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7006d6547230> I0416 05:29:12.804162 123205069130880 checkpointing.py:302] Checkpoint manager created! I0416 05:29:12.882203 123205069130880 dataset_info.py:707] Load dataset info from tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0 I0416 05:29:12.885151 123205069130880 reader.py:262] Creating a tf.data.Dataset reading 8 files located in folders: tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0. I0416 05:29:12.936859 123205069130880 logging_logger.py:49] Constructing tf.data.Dataset __local_c4_builder for split train, from tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0 I0416 05:29:12.970744 123205069130880 tokenizer.py:245] Tokenizer path: src/maxtext/assets/tokenizers/tokenizer.llama2 I0416 05:29:12.970816 123205069130880 tokenizer.py:187] Loading sentencepiece tokenizer: src/maxtext/assets/tokenizers/tokenizer.llama2 I0416 05:29:13.998944 123205069130880 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint I0416 05:29:13.999116 123205069130880 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint. W0416 05:29:14.109357 3743895 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. [DECOUPLED NO-OP] gcs_storage: using stubs. [DECOUPLED NO-OP] mldiagnostics: using stub. [DECOUPLED NO-OP] mldiagnostics: using stub. [DECOUPLED NO-OP] mldiagnostics: using stub. [DECOUPLED NO-OP] workload_monitor: using stub. [DECOUPLED NO-OP] vertex_tensorboard: using stub. fsdp: 8 I0416 05:29:14.313658 123205069130880 nnx_decoders.py:465] nnx_decoders/carry Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed'). I0416 05:29:14.313753 123205069130880 nnx_decoders.py:465] nnx_decoders/carry Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 05:29:14.318915 123205069130880 nnx_decoders.py:465] Unknown Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed'). I0416 05:29:14.318963 123205069130880 nnx_decoders.py:465] Unknown Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 05:29:14.334111 123205069130880 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0416 05:29:14.334162 123205069130880 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 05:29:14.348589 123205069130880 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0416 05:29:14.348637 123205069130880 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 05:29:14.370580 123205069130880 attentions.py:1154] attentions/query Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim'). I0416 05:29:14.370636 123205069130880 attentions.py:1154] attentions/query Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 05:29:14.385226 123205069130880 attentions.py:1155] attentions/key Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim'). I0416 05:29:14.385275 123205069130880 attentions.py:1155] attentions/key Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 05:29:14.399890 123205069130880 attentions.py:1156] attentions/value Logical: bfloat16[8,2048,16,128]..................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim'). I0416 05:29:14.399941 123205069130880 attentions.py:1156] attentions/value Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 05:29:14.428100 123205069130880 attentions.py:1197] attentions/out Logical: bfloat16[8,2048,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv'). I0416 05:29:14.428160 123205069130880 attentions.py:1197] attentions/out Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 05:29:14.446239 123205069130880 linears.py:525] linears/x Logical: bfloat16[8,2048,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp'). I0416 05:29:14.446291 123205069130880 linears.py:525] linears/x Physical: bfloat16[8,2048,7168]....................................... ('fsdp', None, None). W0416 05:29:14.842786 3743895 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 05:29:14.959123 123205069130880 max_utils.py:791] Total memory size: 3.6 GB, Output size: 1.5 GB, Temp size: 2.0 GB, Argument size: 1.5 GB, Host temp size: 0.0 GB. I0416 05:29:14.959747 123205069130880 max_utils.py:194] tensorboardX not available; using no-op SummaryWriter. I0416 05:29:14.961116 123205069130880 metric_logger.py:289] number parameters: 1.104 billion W0416 05:29:17.818235 3743895 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 05:29:17.954866 123205069130880 checkpointing.py:794] Waiting for step 0 to finish before checkpoint... I0416 05:29:18.074735 123205069130880 checkpointing.py:798] Waited 0.11985516548156738 seconds for step 0 to finish before starting checkpointing. I0416 05:29:18.075209 123205069130880 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0416 05:29:18.075361 123205069130880 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 0 I0416 05:29:18.075854 123205069130880 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/0. I0416 05:29:18.157287 123205069130880 signaling_client.py:373] Using ThreadSafeKeyValueSignalingClient I0416 05:29:18.254746 123205069130880 jax_array_handlers.py:347] Scheduling D2H of 69 prioritized jax.Array. I0416 05:29:18.254841 123205069130880 replica_slices.py:410] Transferring arrays to host memory with options: use_replica_parallel=True, min_slice_bytes_for_replica_parallel=None, max_replicas_for_replica_parallel=None, enable_pinned_host_transfer=False I0416 05:29:18.260791 123091873171008 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/0 W0416 05:29:18.896409 3743895 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:29:18.909307 3743895 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:29:18.921040 3743895 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:29:18.940300 3743895 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:29:18.947930 3743895 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 05:29:18.953483 123091862685248 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/0/items W0416 05:29:18.953761 3743895 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:29:18.958507 3743895 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:29:18.962547 3743895 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 05:29:19.092612 123091818645056 checkpoint.py:188] Wrote Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776317358859816775, 'commit_timestamp_nsecs': None, 'custom_metadata': {}}, json={"item_handlers": null, "metrics": {}, "performance_metrics": {}, "init_timestamp_nsecs": 1776317358859816775, "commit_timestamp_nsecs": null, "custom_metadata": {}} to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/0/_CHECKPOINT_METADATA I0416 05:29:19.537307 3746595 google_auth_provider.cc:149] Using credentials at ~/.config/gcloud/application_default_credentials.json I0416 05:29:19.537362 3746595 google_auth_provider.cc:156] Using OAuth2 AuthProvider I0416 05:29:19.538430 123205069130880 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 1.284991s I0416 05:29:19.544551 123205069130880 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 8.905 GiB/s (total gbytes: 12.3 GiB) (time elapsed: a second) (per-host) I0416 05:29:19.544622 123205069130880 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 1.385871s (batch_requests_ready=0.087072s, total_serialization_initiated=1.292775s, others=0.006025s) I0416 05:29:19.544700 123205069130880 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 1.386940s (all_items=0.000030s, per_item={'items': '0.00002980'}, temp_paths=1.386910) I0416 05:29:19.545912 123091734758976 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0416 05:29:19.545996 123205069130880 async_checkpointer.py:561] Finished blocking save. Time taken: 1.470596s. Continuing background save to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/0. I0416 05:29:19.546193 123205069130880 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize I0416 05:29:19.546389 123091883656768 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0416 05:29:19.546490 123205069130880 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776317358.0751958, 'wait_for_prev_duration_secs': 4.267692565917969e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776317358.075382, 'checkpointer_blocking_duration_secs': 1.4707379341125488, 'get_old_steps_start_time': 1776317359.5461383, 'get_old_steps_duration_secs': 2.0503997802734375e-05, 'checkpoint_manager_blocking_start_time': 1776317358.075117, 'checkpoint_manager_blocking_duration_secs': 1.471346139907837} I0416 05:29:19.546613 123205069130880 checkpointing.py:409] Started an asynchronous checkpoint save for step 0 I0416 05:29:19.546670 123205069130880 max_utils.py:750] Memstats: After params initialized: I0416 05:29:19.546713 123205069130880 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_0(process=0,(0,0,0,0)) I0416 05:29:19.546737 123205069130880 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_1(process=0,(1,0,0,0)) I0416 05:29:19.546757 123205069130880 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_2(process=0,(0,1,0,0)) I0416 05:29:19.546776 123205069130880 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_3(process=0,(1,1,0,0)) I0416 05:29:19.546793 123205069130880 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_4(process=0,(0,2,0,0)) I0416 05:29:19.546810 123205069130880 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_5(process=0,(1,2,0,0)) I0416 05:29:19.546826 123205069130880 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_6(process=0,(0,3,0,0)) I0416 05:29:19.546841 123205069130880 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_7(process=0,(1,3,0,0)) W0416 05:29:19.553515 3743895 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:29:19.559842 3743895 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:29:19.564605 3743895 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 05:29:19.855671 123205069130880 metric_logger.py:185] completed step: 0, seconds: 2.992, TFLOP/s/device: 4.541, Tokens/s/device: 684.398, total_weights: 13328, loss: 10.880 I0416 05:29:19.856657 123205069130880 metric_logger.py:269] To see full metrics 'tensorboard --logdir=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/tensorboard/' I0416 05:29:19.968691 123205069130880 metric_logger.py:185] completed step: 1, seconds: 1.897, TFLOP/s/device: 7.162, Tokens/s/device: 1079.506, total_weights: 12332, loss: 10.862 I0416 05:29:20.086680 123205069130880 metric_logger.py:185] completed step: 2, seconds: 0.022, TFLOP/s/device: 606.785, Tokens/s/device: 91461.236, total_weights: 15161, loss: 9.926 I0416 05:29:20.204335 123205069130880 metric_logger.py:185] completed step: 3, seconds: 0.104, TFLOP/s/device: 130.574, Tokens/s/device: 19681.521, total_weights: 13327, loss: 9.396 I0416 05:29:20.524457 123091766216256 array_metadata_store.py:203] [process=0][thread=array_type_handler] Wrote 69 array_metadata.ArrayMetadata to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/0/items/array_metadatas/process_0 I0416 05:29:38.981407 123205069130880 metric_logger.py:185] completed step: 4, seconds: 0.118, TFLOP/s/device: 114.817, Tokens/s/device: 17306.506, total_weights: 11939, loss: 9.005 I0416 05:29:38.992208 123205069130880 metric_logger.py:185] completed step: 5, seconds: 0.117, TFLOP/s/device: 115.807, Tokens/s/device: 17455.636, total_weights: 15502, loss: 8.861 I0416 05:29:39.107609 123205069130880 metric_logger.py:185] completed step: 6, seconds: 18.776, TFLOP/s/device: 0.724, Tokens/s/device: 109.073, total_weights: 13864, loss: 8.738 I0416 05:29:39.225012 123205069130880 metric_logger.py:185] completed step: 7, seconds: 0.008, TFLOP/s/device: 1711.656, Tokens/s/device: 257999.496, total_weights: 12988, loss: 8.651 I0416 05:29:39.342342 123205069130880 metric_logger.py:185] completed step: 8, seconds: 0.117, TFLOP/s/device: 116.375, Tokens/s/device: 17541.305, total_weights: 13820, loss: 8.671 I0416 05:29:39.460530 123205069130880 checkpointing.py:794] Waiting for step 9 to finish before checkpoint... I0416 05:29:39.461679 123205069130880 checkpointing.py:798] Waited 0.0011603832244873047 seconds for step 9 to finish before starting checkpointing. I0416 05:29:39.462516 123205069130880 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0416 05:29:45.051636 123091755730496 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 25.506252s (commit=25.074594s, array_metadata_write=0.431659s) I0416 05:29:45.052782 123091734758976 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 469.875 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 26 seconds) (per-host) I0416 05:29:45.052893 123091734758976 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 25.506851s. I0416 05:29:45.266252 123091734758976 checkpoint.py:228] Read Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776317358859816775, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} from gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/0/_CHECKPOINT_METADATA I0416 05:29:45.447267 123091734758976 array_metadata_store.py:367] [process=0][thread=async_save] Skipped cross-host ArrayMetadata validation because only one process is found: process_index=0. I0416 05:29:45.645648 123091818645056 checkpoint.py:247] Updated Metadata={'item_handlers': {'items': 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler'}, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776317358859816775, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/0/_CHECKPOINT_METADATA I0416 05:29:45.838112 123091734758976 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0416 05:29:45.838725 123091734758976 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.529043s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/0/items I0416 05:29:45.839392 123091734758976 atomicity.py:608] Finalizing gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/0/items I0416 05:29:46.090501 123091734758976 atomicity.py:608] Finalizing gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/0 I0416 05:29:46.767065 123091734758976 atomicity.py:794] [process=0][thread=async_save] Finished saving checkpoint (finalized tmp dir) to `gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/0`. I0416 05:29:46.767688 123091734758976 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 28.692294s. directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/0 I0416 05:29:46.767768 123091734758976 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 27.221727s. I0416 05:29:46.767932 123091883656768 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0416 05:29:46.768036 123091883656768 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0416 05:29:46.768102 123091883656768 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts... I0416 05:29:46.768155 123091883656768 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts. I0416 05:29:46.768344 123205069130880 checkpoint_manager.py:2006] [process=0][thread=MainThread][step=0][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=0. W0416 05:29:46.768477 123205069130880 checkpoint_manager.py:1441] Waiting for previous save to complete took 7.305964 seconds. If this number is high, consider checkpointing less frequently. I0416 05:29:46.769555 123205069130880 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 9 I0416 05:29:46.769841 123205069130880 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/9. I0416 05:29:46.949373 123091883656768 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/9 I0416 05:29:46.949546 123205069130880 jax_array_handlers.py:347] Scheduling D2H of 69 prioritized jax.Array. I0416 05:29:46.949790 123205069130880 replica_slices.py:410] Transferring arrays to host memory with options: use_replica_parallel=True, min_slice_bytes_for_replica_parallel=None, max_replicas_for_replica_parallel=None, enable_pinned_host_transfer=False I0416 05:29:47.631447 123091724273216 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/9/items I0416 05:29:58.535586 123205069130880 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 11.587265s I0416 05:29:58.536240 123205069130880 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 1.056 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 11 seconds) (per-host) I0416 05:29:58.536296 123205069130880 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 11.682420s (batch_requests_ready=0.086998s, total_serialization_initiated=11.594972s, others=0.000451s) I0416 05:29:58.536368 123205069130880 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 11.682915s (all_items=0.000018s, per_item={'items': '0.00001788'}, temp_paths=11.682897) I0416 05:29:58.543200 123091755730496 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0416 05:29:58.543299 123205069130880 async_checkpointer.py:561] Finished blocking save. Time taken: 11.773700s. Continuing background save to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/9. I0416 05:29:58.543576 123205069130880 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize I0416 05:29:58.543714 123091734758976 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0416 05:29:58.543796 123205069130880 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776317379.4624813, 'wait_for_prev_duration_secs': 7.305963516235352, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776317386.7695785, 'checkpointer_blocking_duration_secs': 11.773905515670776, 'get_old_steps_start_time': 1776317398.5435052, 'get_old_steps_duration_secs': 2.8133392333984375e-05, 'checkpoint_manager_blocking_start_time': 1776317379.4624314, 'checkpoint_manager_blocking_duration_secs': 19.081329584121704} I0416 05:29:58.543912 123205069130880 checkpointing.py:409] Started an asynchronous checkpoint save for step 9 I0416 05:29:58.543947 123205069130880 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0416 05:29:59.279380 123091797673536 array_metadata_store.py:203] [process=0][thread=array_type_handler] Wrote 69 array_metadata.ArrayMetadata to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/9/items/array_metadatas/process_0 I0416 05:30:39.250016 123091724273216 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 40.707438s (commit=40.266333s, array_metadata_write=0.441104s) I0416 05:30:39.251225 123091755730496 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 241.172 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 52 seconds) (per-host) I0416 05:30:39.251342 123091755730496 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 40.707992s. I0416 05:30:39.628951 123091755730496 array_metadata_store.py:367] [process=0][thread=async_save] Skipped cross-host ArrayMetadata validation because only one process is found: process_index=0. I0416 05:30:40.089411 123091755730496 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0416 05:30:40.089596 123091755730496 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.592819s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/9/items I0416 05:30:40.090238 123091755730496 atomicity.py:608] Finalizing gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/9/items I0416 05:30:40.326597 123091755730496 atomicity.py:608] Finalizing gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/9 I0416 05:30:40.998370 123091755730496 atomicity.py:794] [process=0][thread=async_save] Finished saving checkpoint (finalized tmp dir) to `gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/9`. I0416 05:30:40.998977 123091755730496 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 54.229383s. directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_10_shardy_true/checkpoints/9 I0416 05:30:40.999073 123091755730496 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 42.455730s. I0416 05:30:40.999198 123091734758976 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0416 05:30:40.999253 123091734758976 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0416 05:30:40.999345 123091734758976 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts... I0416 05:30:40.999385 123091734758976 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts. I0416 05:30:40.999752 123205069130880 checkpoint_manager.py:2006] [process=0][thread=MainThread][step=9][wait_until_finished] Done waiting for Save Finalize thread (save_finalize) running at step=9. I0416 05:30:41.000870 123205069130880 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0416 05:30:41.002389 123205069130880 metric_logger.py:185] completed step: 9, seconds: 0.117, TFLOP/s/device: 116.264, Tokens/s/device: 17524.644, total_weights: 12300, loss: 8.668 Per train step: Total TFLOPs: 13.59 split as 93.93% learnable weight flops and 6.07% attention flops