2026-04-16 02:31:26.395476: 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 02:31:26.512542 129019242654848 max_utils.py:238] Skipping jax distributed system due to skip_jax_distributed_system=True flag. I0416 02:31:55.697464 129019242654848 max_utils.py:800] System Information: Jax Version: 0.9.2 I0416 02:31:55.697593 129019242654848 max_utils.py:801] System Information: Jaxlib Version: 0.9.2 I0416 02:31:55.697630 129019242654848 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 02:31:55.697655 129019242654848 train_utils.py:364] WARNING: 'dataset_path' might be pointing your local file system I0416 02:31:55.697736 129019242654848 train.py:812] [DECOUPLED NO-OP] skipping cloud diagnostics wrapper. W0416 02:31:55.791464 3558167 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 02:31:56.206479 129019242654848 maxtext_utils.py:1687] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1) I0416 02:31:56.304281 129019242654848 checkpointing.py:688] Setting up checkpoint logger... I0416 02:31:56.304387 129019242654848 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True I0416 02:31:56.304429 129019242654848 pytree_checkpoint_handler.py:577] save_device_host_concurrent_bytes=None I0416 02:31:56.304617 129019242654848 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 0x75570bdfcd70>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB) I0416 02:31:58.642430 129019242654848 checkpointing.py:266] Enabling policy for fixed interval checkpointing. I0416 02:31:58.642632 129019242654848 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 0x75508e518da0>}, handler_registry=None I0416 02:31:58.642927 129019242654848 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x75508e518da0>` 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 02:31:58.642968 129019242654848 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x75508e540e30>` 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 02:31:58.642998 129019242654848 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 0x75508e518da0>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x75508e518da0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x75508e540e30>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x75508e540e30>}). I0416 02:31:58.643445 129019242654848 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.28 I0416 02:31:58.643501 129019242654848 async_checkpointer.py:177] [process=0][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>.<lambda> at 0x75508ed89940> timeout: 600 secs and primary_host=0 for async checkpoint writes I0416 02:31:58.765827 129019242654848 checkpoint_manager.py:1788] Found 0 checkpoint steps in gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints I0416 02:31:58.766093 129019242654848 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_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x75508e542ae0> I0416 02:31:58.766175 129019242654848 checkpointing.py:302] Checkpoint manager created! I0416 02:31:58.854391 129019242654848 dataset_info.py:707] Load dataset info from tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0 I0416 02:31:58.858105 129019242654848 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 02:31:58.915238 129019242654848 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 02:31:58.948979 129019242654848 tokenizer.py:245] Tokenizer path: src/maxtext/assets/tokenizers/tokenizer.llama2 I0416 02:31:58.949065 129019242654848 tokenizer.py:187] Loading sentencepiece tokenizer: src/maxtext/assets/tokenizers/tokenizer.llama2 I0416 02:31:59.981785 129019242654848 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint I0416 02:31:59.981907 129019242654848 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint. W0416 02:32:00.100604 3558167 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 02:32:00.320013 129019242654848 nnx_decoders.py:465] nnx_decoders/carry Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed'). I0416 02:32:00.320133 129019242654848 nnx_decoders.py:465] nnx_decoders/carry Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 02:32:00.325258 129019242654848 nnx_decoders.py:465] Unknown Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed'). I0416 02:32:00.325307 129019242654848 nnx_decoders.py:465] Unknown Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 02:32:00.340891 129019242654848 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0416 02:32:00.340945 129019242654848 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 02:32:00.355641 129019242654848 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0416 02:32:00.355692 129019242654848 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None). I0416 02:32:00.377815 129019242654848 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 02:32:00.377879 129019242654848 attentions.py:1154] attentions/query Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 02:32:00.392697 129019242654848 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 02:32:00.392750 129019242654848 attentions.py:1155] attentions/key Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 02:32:00.407458 129019242654848 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 02:32:00.407510 129019242654848 attentions.py:1156] attentions/value Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 02:32:00.435571 129019242654848 attentions.py:1197] attentions/out Logical: bfloat16[8,2048,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv'). I0416 02:32:00.435633 129019242654848 attentions.py:1197] attentions/out Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None). I0416 02:32:00.454264 129019242654848 linears.py:525] linears/x Logical: bfloat16[8,2048,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp'). I0416 02:32:00.454324 129019242654848 linears.py:525] linears/x Physical: bfloat16[8,2048,7168]....................................... ('fsdp', None, None). W0416 02:32:00.820964 3558167 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 02:32:00.937017 129019242654848 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 02:32:00.937706 129019242654848 max_utils.py:194] tensorboardX not available; using no-op SummaryWriter. I0416 02:32:00.939070 129019242654848 metric_logger.py:289] number parameters: 1.104 billion W0416 02:32:03.816792 3558167 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 02:32:03.953506 129019242654848 checkpointing.py:794] Waiting for step 0 to finish before checkpoint... I0416 02:32:04.073561 129019242654848 checkpointing.py:798] Waited 0.12005853652954102 seconds for step 0 to finish before starting checkpointing. I0416 02:32:04.074185 129019242654848 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0416 02:32:04.074361 129019242654848 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 0 I0416 02:32:04.074944 129019242654848 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0. I0416 02:32:04.159650 129019242654848 signaling_client.py:373] Using ThreadSafeKeyValueSignalingClient I0416 02:32:04.247965 129019242654848 jax_array_handlers.py:347] Scheduling D2H of 69 prioritized jax.Array. I0416 02:32:04.248094 129019242654848 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 02:32:04.257148 128906071901760 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0 W0416 02:32:04.931141 3558167 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 02:32:04.942754 3558167 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 02:32:04.958350 3558167 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 02:32:04.964846 3558167 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 02:32:04.976672 3558167 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 02:32:04.986400 128906061416000 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0/items W0416 02:32:04.986873 3558167 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 02:32:04.993718 3558167 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 02:32:04.998580 3558167 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 02:32:05.143431 128906017375808 checkpoint.py:188] Wrote Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776306724892608891, 'commit_timestamp_nsecs': None, 'custom_metadata': {}}, json={"item_handlers": null, "metrics": {}, "performance_metrics": {}, "init_timestamp_nsecs": 1776306724892608891, "commit_timestamp_nsecs": null, "custom_metadata": {}} to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0/_CHECKPOINT_METADATA I0416 02:32:05.518446 3560889 google_auth_provider.cc:149] Using credentials at ~/.config/gcloud/application_default_credentials.json I0416 02:32:05.518503 3560889 google_auth_provider.cc:156] Using OAuth2 AuthProvider I0416 02:32:06.806998 129019242654848 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 2.560125s I0416 02:32:06.807743 129019242654848 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 4.663 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 2 seconds) (per-host) I0416 02:32:06.807801 129019242654848 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 2.646703s (batch_requests_ready=0.077451s, total_serialization_initiated=2.568702s, others=0.000551s) I0416 02:32:06.807878 129019242654848 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 2.647362s (all_items=0.000030s, per_item={'items': '0.00003004'}, temp_paths=2.647332) I0416 02:32:06.815502 128906082387520 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0416 02:32:06.815616 129019242654848 async_checkpointer.py:561] Finished blocking save. Time taken: 2.741211s. Continuing background save to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0. I0416 02:32:06.815865 129019242654848 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize I0416 02:32:06.816063 128905954461248 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0416 02:32:06.816165 129019242654848 standard_logger.py:34] {'step': 0, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776306724.0741675, 'wait_for_prev_duration_secs': 4.887580871582031e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776306724.0743825, 'checkpointer_blocking_duration_secs': 2.7413671016693115, 'get_old_steps_start_time': 1776306726.8157802, 'get_old_steps_duration_secs': 4.410743713378906e-05, 'checkpoint_manager_blocking_start_time': 1776306724.0740132, 'checkpoint_manager_blocking_duration_secs': 2.7421226501464844} I0416 02:32:06.816290 129019242654848 checkpointing.py:409] Started an asynchronous checkpoint save for step 0 I0416 02:32:06.816351 129019242654848 max_utils.py:750] Memstats: After params initialized: I0416 02:32:06.816401 129019242654848 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_0(process=0,(0,0,0,0)) I0416 02:32:06.816426 129019242654848 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_1(process=0,(1,0,0,0)) I0416 02:32:06.816446 129019242654848 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_2(process=0,(0,1,0,0)) I0416 02:32:06.816465 129019242654848 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_3(process=0,(1,1,0,0)) I0416 02:32:06.816484 129019242654848 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_4(process=0,(0,2,0,0)) I0416 02:32:06.816501 129019242654848 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_5(process=0,(1,2,0,0)) I0416 02:32:06.816519 129019242654848 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_6(process=0,(0,3,0,0)) I0416 02:32:06.816535 129019242654848 max_utils.py:756] Using (GB) 1.59 / 31.25 (5.088000%) on TPU_7(process=0,(1,3,0,0)) W0416 02:32:06.823447 3558167 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 02:32:06.829357 3558167 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 02:32:06.833419 3558167 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 02:32:07.205005 129019242654848 metric_logger.py:185] completed step: 0, seconds: 3.013, TFLOP/s/device: 4.509, Tokens/s/device: 679.709, total_weights: 13328, loss: 10.880 I0416 02:32:07.205952 129019242654848 metric_logger.py:269] To see full metrics 'tensorboard --logdir=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/tensorboard/' I0416 02:32:07.317611 129019242654848 metric_logger.py:185] completed step: 1, seconds: 3.248, TFLOP/s/device: 4.184, Tokens/s/device: 630.591, total_weights: 12332, loss: 10.862 I0416 02:32:07.434834 129019242654848 metric_logger.py:185] completed step: 2, seconds: 0.023, TFLOP/s/device: 584.921, Tokens/s/device: 88165.655, total_weights: 15161, loss: 9.926 I0416 02:32:07.552204 129019242654848 metric_logger.py:185] completed step: 3, seconds: 0.103, TFLOP/s/device: 131.680, Tokens/s/device: 19848.231, total_weights: 13327, loss: 9.396 I0416 02:32:07.760406 128906040444480 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_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0/items/array_metadatas/process_0 I0416 02:32:26.715852 129019242654848 metric_logger.py:185] completed step: 4, seconds: 0.118, TFLOP/s/device: 115.497, Tokens/s/device: 17408.897, total_weights: 11939, loss: 9.005 I0416 02:32:26.729362 129019242654848 metric_logger.py:185] completed step: 5, seconds: 0.117, TFLOP/s/device: 115.908, Tokens/s/device: 17470.974, total_weights: 15502, loss: 8.861 I0416 02:32:26.843764 129019242654848 metric_logger.py:185] completed step: 6, seconds: 19.165, TFLOP/s/device: 0.709, Tokens/s/device: 106.864, total_weights: 13864, loss: 8.738 I0416 02:32:26.961334 129019242654848 metric_logger.py:185] completed step: 7, seconds: 0.009, TFLOP/s/device: 1527.330, Tokens/s/device: 230215.827, total_weights: 12988, loss: 8.651 I0416 02:32:27.078833 129019242654848 metric_logger.py:185] completed step: 8, seconds: 0.116, TFLOP/s/device: 117.305, Tokens/s/device: 17681.542, total_weights: 13820, loss: 8.671 I0416 02:32:27.196770 129019242654848 checkpointing.py:794] Waiting for step 9 to finish before checkpoint... I0416 02:32:27.198015 129019242654848 checkpointing.py:798] Waited 0.0012629032135009766 seconds for step 9 to finish before starting checkpointing. I0416 02:32:27.198886 129019242654848 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0416 02:32:29.806913 128905964947008 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 22.992282s (commit=22.540541s, array_metadata_write=0.451740s) I0416 02:32:29.808261 128906082387520 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 492.719 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 25 seconds) (per-host) I0416 02:32:29.808396 128906082387520 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 22.992724s. I0416 02:32:30.061086 128906082387520 checkpoint.py:228] Read Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776306724892608891, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} from gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0/_CHECKPOINT_METADATA I0416 02:32:30.237879 128906082387520 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 02:32:30.433094 128906017375808 checkpoint.py:247] Updated Metadata={'item_handlers': {'items': 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler'}, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776306724892608891, 'commit_timestamp_nsecs': None, 'custom_metadata': {}} to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0/_CHECKPOINT_METADATA I0416 02:32:30.663148 128906082387520 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0416 02:32:30.663865 128906082387520 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.561981s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0/items I0416 02:32:30.664611 128906082387520 atomicity.py:608] Finalizing gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0/items I0416 02:32:30.900875 128906082387520 atomicity.py:608] Finalizing gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0 I0416 02:32:31.566154 128906082387520 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_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0`. I0416 02:32:31.566904 128906082387520 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 27.492502s. directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/0 I0416 02:32:31.566993 128906082387520 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 24.751327s. I0416 02:32:31.567229 128905954461248 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0416 02:32:31.567356 128905954461248 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0416 02:32:31.567417 128905954461248 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts... I0416 02:32:31.567475 128905954461248 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts. I0416 02:32:31.567658 129019242654848 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 02:32:31.567799 129019242654848 checkpoint_manager.py:1441] Waiting for previous save to complete took 4.368926 seconds. If this number is high, consider checkpointing less frequently. I0416 02:32:31.569074 129019242654848 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 9 I0416 02:32:31.569392 129019242654848 async_checkpointer.py:452] [process=0] Started async saving checkpoint to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9. I0416 02:32:31.757260 128905954461248 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9 I0416 02:32:31.757459 129019242654848 jax_array_handlers.py:347] Scheduling D2H of 69 prioritized jax.Array. I0416 02:32:31.757751 129019242654848 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 02:32:32.454173 128905933489728 atomicity.py:137] Creating tmp directory gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9/items I0416 02:32:39.927564 129019242654848 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 8.171457s I0416 02:32:39.935195 129019242654848 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 1.490 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 8 seconds) (per-host) I0416 02:32:39.935297 129019242654848 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 8.282589s (batch_requests_ready=0.095579s, total_serialization_initiated=8.179509s, others=0.007501s) I0416 02:32:39.935392 129019242654848 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 8.283196s (all_items=0.000025s, per_item={'items': '0.00002480'}, temp_paths=8.283171) I0416 02:32:39.937248 128905964947008 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0416 02:32:39.937389 129019242654848 async_checkpointer.py:561] Finished blocking save. Time taken: 8.368263s. Continuing background save to gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9. I0416 02:32:39.937767 129019242654848 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize I0416 02:32:39.938029 128906147399232 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0416 02:32:39.938201 129019242654848 standard_logger.py:34] {'step': 9, 'event_type': 'save', 'directory': 'gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776306747.1988323, 'wait_for_prev_duration_secs': 4.36892557144165, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776306751.5690985, 'checkpointer_blocking_duration_secs': 8.368451833724976, 'get_old_steps_start_time': 1776306759.9375792, 'get_old_steps_duration_secs': 0.00012040138244628906, 'checkpoint_manager_blocking_start_time': 1776306747.198768, 'checkpoint_manager_blocking_duration_secs': 12.73938798904419} I0416 02:32:39.938385 129019242654848 checkpointing.py:409] Started an asynchronous checkpoint save for step 9 I0416 02:32:39.938426 129019242654848 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0416 02:32:40.728799 128921794250304 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_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9/items/array_metadatas/process_0 I0416 02:33:10.679429 128905933489728 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 30.743205s (commit=30.276461s, array_metadata_write=0.466744s) I0416 02:33:10.681064 128905964947008 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 323.786 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 39 seconds) (per-host) I0416 02:33:10.681212 128905964947008 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 30.743766s. I0416 02:33:11.103943 128905964947008 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 02:33:11.574851 128905964947008 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0416 02:33:11.575861 128905964947008 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.618644s. use_zarr3=True, enable_post_merge_validation=True, directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9/items I0416 02:33:11.576664 128905964947008 atomicity.py:608] Finalizing gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9/items I0416 02:33:11.807081 128905964947008 atomicity.py:608] Finalizing gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9 I0416 02:33:12.482595 128905964947008 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_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9`. I0416 02:33:12.483391 128905964947008 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 40.914278s. directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_10_shardy_true/checkpoints/9 I0416 02:33:12.483495 128905964947008 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 32.546052s. I0416 02:33:12.483789 128906147399232 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0416 02:33:12.483940 128906147399232 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0416 02:33:12.484090 128906147399232 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts... I0416 02:33:12.484163 128906147399232 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts. I0416 02:33:12.484735 129019242654848 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 02:33:12.486190 129019242654848 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0416 02:33:12.487156 129019242654848 metric_logger.py:185] completed step: 9, seconds: 0.117, TFLOP/s/device: 115.965, Tokens/s/device: 17479.474, 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