2026-04-16 05:00:47.530971: 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 05:00:47.647208 131784275049600 max_utils.py:238] Skipping jax distributed system due to skip_jax_distributed_system=True flag. I0416 05:01:45.362419 131784275049600 max_utils.py:800] System Information: Jax Version: 0.9.2 I0416 05:01:45.362526 131784275049600 max_utils.py:801] System Information: Jaxlib Version: 0.9.2 I0416 05:01:45.362560 131784275049600 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 05:01:45.362587 131784275049600 train_utils.py:364] WARNING: 'dataset_path' might be pointing your local file system I0416 05:01:45.362669 131784275049600 train.py:818] [DECOUPLED NO-OP] skipping cloud diagnostics wrapper. W0416 05:01:45.455921 3713984 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 05:01:45.863938 131784275049600 maxtext_utils.py:1687] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1) I0416 05:01:45.963732 131784275049600 checkpointing.py:688] Setting up checkpoint logger... I0416 05:01:45.963829 131784275049600 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True I0416 05:01:45.963871 131784275049600 pytree_checkpoint_handler.py:577] save_device_host_concurrent_bytes=None I0416 05:01:45.964070 131784275049600 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 0x77dad49fcce0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB) I0416 05:01:48.374229 131784275049600 checkpointing.py:266] Enabling policy for fixed interval checkpointing. I0416 05:01:48.374415 131784275049600 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 0x77d4571ab470>}, handler_registry=None I0416 05:01:48.374694 131784275049600 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x77d4571ab470>` 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 05:01:48.374736 131784275049600 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x77d45713d730>` 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 05:01:48.374764 131784275049600 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 0x77d4571ab470>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x77d4571ab470>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x77d45713d730>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x77d45713d730>}). I0416 05:01:48.375342 131784275049600 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.28 I0416 05:01:48.375394 131784275049600 async_checkpointer.py:177] [process=0][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>.<lambda> at 0x77d458189940> timeout: 600 secs and primary_host=0 for async checkpoint writes I0416 05:01:48.503875 131784275049600 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_03_dropout/checkpoints I0416 05:01:48.504120 131784275049600 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_03_dropout/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x77d4571a90d0> I0416 05:01:48.504203 131784275049600 checkpointing.py:302] Checkpoint manager created! I0416 05:01:48.586455 131784275049600 dataset_info.py:707] Load dataset info from tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0 I0416 05:01:48.589545 131784275049600 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 05:01:48.646206 131784275049600 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 05:01:48.680008 131784275049600 tokenizer.py:245] Tokenizer path: src/maxtext/assets/tokenizers/tokenizer.llama2 I0416 05:01:48.680089 131784275049600 tokenizer.py:187] Loading sentencepiece tokenizer: src/maxtext/assets/tokenizers/tokenizer.llama2 I0416 05:01:49.774347 131784275049600 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint I0416 05:01:49.774451 131784275049600 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint. W0416 05:01:49.885180 3713984 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 05:01:50.097730 131784275049600 nnx_decoders.py:465] nnx_decoders/carry Logical: bfloat16[8,128,2048]........................................ ('activation_batch', 'activation_norm_length', 'activation_embed'). I0416 05:01:50.097817 131784275049600 nnx_decoders.py:465] nnx_decoders/carry Physical: bfloat16[8,128,2048]........................................ ('fsdp', None, None). I0416 05:01:50.102365 131784275049600 nnx_decoders.py:465] Unknown Logical: bfloat16[8,128,2048]........................................ ('activation_batch', 'activation_norm_length', 'activation_embed'). I0416 05:01:50.102410 131784275049600 nnx_decoders.py:465] Unknown Physical: bfloat16[8,128,2048]........................................ ('fsdp', None, None). I0416 05:01:50.117427 131784275049600 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,128,2048]........................................ ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0416 05:01:50.117476 131784275049600 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,128,2048]........................................ ('fsdp', None, None). I0416 05:01:50.131989 131784275049600 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,128,2048]........................................ ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0416 05:01:50.132035 131784275049600 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,128,2048]........................................ ('fsdp', None, None). I0416 05:01:50.153972 131784275049600 attentions.py:1154] attentions/query Logical: bfloat16[8,128,16,128]...................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim'). I0416 05:01:50.154030 131784275049600 attentions.py:1154] attentions/query Physical: bfloat16[8,128,16,128]...................................... ('fsdp', None, None, None). I0416 05:01:50.168564 131784275049600 attentions.py:1155] attentions/key Logical: bfloat16[8,128,16,128]...................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim'). I0416 05:01:50.168614 131784275049600 attentions.py:1155] attentions/key Physical: bfloat16[8,128,16,128]...................................... ('fsdp', None, None, None). I0416 05:01:50.183163 131784275049600 attentions.py:1156] attentions/value Logical: bfloat16[8,128,16,128]...................................... ('activation_kv_batch', 'activation_attn_length', 'activation_kv_heads', 'activation_kv_head_dim'). I0416 05:01:50.183211 131784275049600 attentions.py:1156] attentions/value Physical: bfloat16[8,128,16,128]...................................... ('fsdp', None, None, None). I0416 05:01:50.211375 131784275049600 attentions.py:1197] attentions/out Logical: bfloat16[8,128,16,128]...................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv'). I0416 05:01:50.211434 131784275049600 attentions.py:1197] attentions/out Physical: bfloat16[8,128,16,128]...................................... ('fsdp', None, None, None). I0416 05:01:50.235166 131784275049600 linears.py:525] linears/x Logical: bfloat16[8,128,7168]........................................ ('activation_batch', 'activation_length', 'activation_mlp'). I0416 05:01:50.235222 131784275049600 linears.py:525] linears/x Physical: bfloat16[8,128,7168]........................................ ('fsdp', None, None). I0416 05:01:54.255233 131784275049600 max_utils.py:791] Total memory size: 2.5 GB, Output size: 1.5 GB, Temp size: 1.0 GB, Argument size: 1.5 GB, Host temp size: 0.0 GB. I0416 05:01:54.255766 131784275049600 max_utils.py:194] tensorboardX not available; using no-op SummaryWriter. I0416 05:01:54.257161 131784275049600 metric_logger.py:289] number parameters: 1.104 billion I0416 05:02:01.017322 131784275049600 checkpointing.py:794] Waiting for step 0 to finish before checkpoint... I0416 05:02:01.089822 131784275049600 checkpointing.py:798] Waited 0.07248783111572266 seconds for step 0 to finish before starting checkpointing. I0416 05:02:01.090309 131784275049600 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0416 05:02:01.090458 131784275049600 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 0 I0416 05:02:01.090815 131784275049600 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_03_dropout/checkpoints/0. I0416 05:02:01.176055 131784275049600 signaling_client.py:373] Using ThreadSafeKeyValueSignalingClient I0416 05:02:01.278569 131784275049600 jax_array_handlers.py:347] Scheduling D2H of 69 prioritized jax.Array. I0416 05:02:01.278711 131669340194368 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_03_dropout/checkpoints/0 I0416 05:02:01.279111 131784275049600 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 05:02:01.966823 131669329708608 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_03_dropout/checkpoints/0/items W0416 05:02:01.996232 3713984 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:02:02.006169 3713984 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:02:02.021235 3713984 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:02:02.036344 3713984 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:02:02.045966 3713984 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:02:02.052774 3713984 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:02:02.058934 3713984 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:02:02.064608 3713984 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 05:02:02.145913 131669300348480 checkpoint.py:188] Wrote Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776315721878754084, 'commit_timestamp_nsecs': None, 'custom_metadata': {}}, json={"item_handlers": null, "metrics": {}, "performance_metrics": {}, "init_timestamp_nsecs": 1776315721878754084, "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_03_dropout/checkpoints/0/_CHECKPOINT_METADATA I0416 05:02:02.384941 131784275049600 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 1.107667s I0416 05:02:02.385375 131784275049600 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 10.217 GiB/s (total gbytes: 12.3 GiB) (time elapsed: a second) (per-host) I0416 05:02:02.385427 131784275049600 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 1.207957s (batch_requests_ready=0.091864s, total_serialization_initiated=1.115767s, others=0.000326s) I0416 05:02:02.385486 131784275049600 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 1.208948s (all_items=0.000018s, per_item={'items': '0.00001836'}, temp_paths=1.208930) I0416 05:02:02.386301 131669279376960 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0416 05:02:02.386401 131784275049600 async_checkpointer.py:561] Finished blocking save. Time taken: 1.295904s. 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_03_dropout/checkpoints/0. I0416 05:02:02.386585 131784275049600 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize I0416 05:02:02.386783 131669268891200 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0416 05:02:02.386888 131784275049600 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_03_dropout/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776315721.0902965, 'wait_for_prev_duration_secs': 4.1961669921875e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776315721.0904791, 'checkpointer_blocking_duration_secs': 1.2960357666015625, 'get_old_steps_start_time': 1776315722.3865314, 'get_old_steps_duration_secs': 2.09808349609375e-05, 'checkpoint_manager_blocking_start_time': 1776315721.0902138, 'checkpoint_manager_blocking_duration_secs': 1.2966480255126953} I0416 05:02:02.387015 131784275049600 checkpointing.py:409] Started an asynchronous checkpoint save for step 0 I0416 05:02:02.387079 131784275049600 max_utils.py:750] Memstats: After params initialized: I0416 05:02:02.387232 131784275049600 max_utils.py:756] Using (GB) 1.56 / 31.25 (4.992000%) on TPU_0(process=0,(0,0,0,0)) I0416 05:02:02.387261 131784275049600 max_utils.py:756] Using (GB) 1.56 / 31.25 (4.992000%) on TPU_1(process=0,(1,0,0,0)) I0416 05:02:02.387281 131784275049600 max_utils.py:756] Using (GB) 1.56 / 31.25 (4.992000%) on TPU_2(process=0,(0,1,0,0)) I0416 05:02:02.387299 131784275049600 max_utils.py:756] Using (GB) 1.56 / 31.25 (4.992000%) on TPU_3(process=0,(1,1,0,0)) I0416 05:02:02.387316 131784275049600 max_utils.py:756] Using (GB) 1.56 / 31.25 (4.992000%) on TPU_4(process=0,(0,2,0,0)) I0416 05:02:02.387334 131784275049600 max_utils.py:756] Using (GB) 1.56 / 31.25 (4.992000%) on TPU_5(process=0,(1,2,0,0)) I0416 05:02:02.387351 131784275049600 max_utils.py:756] Using (GB) 1.56 / 31.25 (4.992000%) on TPU_6(process=0,(0,3,0,0)) I0416 05:02:02.387367 131784275049600 max_utils.py:756] Using (GB) 1.56 / 31.25 (4.992000%) on TPU_7(process=0,(1,3,0,0)) W0416 05:02:02.392795 3713984 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:02:02.398160 3713984 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 05:02:02.402953 3713984 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 05:02:02.520571 3717256 google_auth_provider.cc:149] Using credentials at ~/.config/gcloud/application_default_credentials.json I0416 05:02:02.520627 3717256 google_auth_provider.cc:156] Using OAuth2 AuthProvider I0416 05:02:02.801815 131784275049600 metric_logger.py:185] completed step: 0, seconds: 6.759, TFLOP/s/device: 0.118, Tokens/s/device: 18.938, total_weights: 963, loss: 10.836 I0416 05:02:02.802834 131784275049600 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_03_dropout/tensorboard/' I0416 05:02:02.859952 131784275049600 metric_logger.py:185] completed step: 1, seconds: 1.780, TFLOP/s/device: 0.450, Tokens/s/device: 71.906, total_weights: 945, loss: 10.847 I0416 05:02:02.922652 131784275049600 metric_logger.py:185] completed step: 2, seconds: 0.021, TFLOP/s/device: 37.879, Tokens/s/device: 6054.013, total_weights: 962, loss: 10.296 I0416 05:02:02.985909 131784275049600 metric_logger.py:185] completed step: 3, seconds: 0.051, TFLOP/s/device: 15.789, Tokens/s/device: 2523.411, total_weights: 975, loss: 9.778 I0416 05:02:03.508820 131669319222848 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_03_dropout/checkpoints/0/items/array_metadatas/process_0 I0416 05:02:14.811247 131784275049600 metric_logger.py:185] completed step: 4, seconds: 0.063, TFLOP/s/device: 12.674, Tokens/s/device: 2025.573, total_weights: 962, loss: 9.422 I0416 05:02:14.820857 131784275049600 metric_logger.py:185] completed step: 5, seconds: 0.063, TFLOP/s/device: 12.687, Tokens/s/device: 2027.691, total_weights: 958, loss: 9.222 I0416 05:02:14.881641 131784275049600 metric_logger.py:185] completed step: 6, seconds: 11.824, TFLOP/s/device: 0.068, Tokens/s/device: 10.826, total_weights: 930, loss: 9.362 I0416 05:02:14.944874 131784275049600 metric_logger.py:185] completed step: 7, seconds: 0.008, TFLOP/s/device: 106.175, Tokens/s/device: 16969.376, total_weights: 935, loss: 9.333 I0416 05:02:15.007970 131784275049600 metric_logger.py:185] completed step: 8, seconds: 0.062, TFLOP/s/device: 12.989, Tokens/s/device: 2075.967, total_weights: 930, loss: 9.560 I0416 05:02:15.071979 131784275049600 checkpointing.py:794] Waiting for step 9 to finish before checkpoint... I0416 05:02:15.073147 131784275049600 checkpointing.py:798] Waited 0.0011835098266601562 seconds for step 9 to finish before starting checkpointing. I0416 05:02:15.073412 131784275049600 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0416 05:02:32.757035 131669340194368 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 30.241509s (commit=29.766249s, array_metadata_write=0.475260s) I0416 05:02:32.758118 131669279376960 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 400.144 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 31 seconds) (per-host) I0416 05:02:32.758219 131669279376960 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 30.371772s. I0416 05:02:32.989722 131669279376960 checkpoint.py:228] Read Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776315721878754084, '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_03_dropout/checkpoints/0/_CHECKPOINT_METADATA I0416 05:02:33.169436 131669279376960 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 05:02:33.364401 131669300348480 checkpoint.py:247] Updated Metadata={'item_handlers': {'items': 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler'}, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776315721878754084, '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_03_dropout/checkpoints/0/_CHECKPOINT_METADATA I0416 05:02:33.608110 131669279376960 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0416 05:02:33.608276 131669279376960 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.584844s. 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_03_dropout/checkpoints/0/items I0416 05:02:33.608916 131669279376960 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_03_dropout/checkpoints/0/items I0416 05:02:33.862561 131669279376960 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_03_dropout/checkpoints/0 I0416 05:02:34.550479 131669279376960 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_03_dropout/checkpoints/0`. I0416 05:02:34.551120 131669279376960 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 33.460629s. directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_03_dropout/checkpoints/0 I0416 05:02:34.551196 131669279376960 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 32.164750s. I0416 05:02:34.551364 131669268891200 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0416 05:02:34.551471 131669268891200 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0416 05:02:34.551528 131669268891200 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts... I0416 05:02:34.551573 131669268891200 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts. I0416 05:02:34.551678 131784275049600 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 05:02:34.551754 131784275049600 checkpoint_manager.py:1441] Waiting for previous save to complete took 19.478352 seconds. If this number is high, consider checkpointing less frequently. I0416 05:02:34.552450 131784275049600 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 9 I0416 05:02:34.552689 131784275049600 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_03_dropout/checkpoints/9. I0416 05:02:34.734907 131784275049600 jax_array_handlers.py:347] Scheduling D2H of 69 prioritized jax.Array. I0416 05:02:34.735061 131669268891200 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_03_dropout/checkpoints/9 I0416 05:02:34.735144 131784275049600 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 05:02:35.441872 131669329708608 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_03_dropout/checkpoints/9/items I0416 05:02:45.878932 131784275049600 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 11.145317s I0416 05:02:45.879475 131784275049600 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 1.097 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 11 seconds) (per-host) I0416 05:02:45.879529 131784275049600 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 11.245016s (batch_requests_ready=0.091979s, total_serialization_initiated=11.152620s, others=0.000417s) I0416 05:02:45.879607 131784275049600 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 11.245536s (all_items=0.000019s, per_item={'items': '0.00001884'}, temp_paths=11.245517) I0416 05:02:45.886342 131669279376960 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0416 05:02:45.886493 131784275049600 async_checkpointer.py:561] Finished blocking save. Time taken: 11.333994s. 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_03_dropout/checkpoints/9. I0416 05:02:45.886714 131784275049600 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize I0416 05:02:45.886881 131669340194368 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0416 05:02:45.886983 131784275049600 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_03_dropout/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776315735.0733793, 'wait_for_prev_duration_secs': 19.478351593017578, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776315754.5524817, 'checkpointer_blocking_duration_secs': 11.3341383934021, 'get_old_steps_start_time': 1776315765.886643, 'get_old_steps_duration_secs': 2.86102294921875e-05, 'checkpoint_manager_blocking_start_time': 1776315735.0733376, 'checkpoint_manager_blocking_duration_secs': 30.813617706298828} I0416 05:02:45.887180 131784275049600 checkpointing.py:409] Started an asynchronous checkpoint save for step 9 I0416 05:02:45.887216 131784275049600 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0416 05:02:46.609521 131669319222848 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_03_dropout/checkpoints/9/items/array_metadatas/process_0 I0416 05:03:35.713675 131669329708608 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 49.827984s (commit=49.395661s, array_metadata_write=0.432324s) I0416 05:03:35.714849 131669279376960 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 206.888 MiB/s (total gbytes: 12.3 GiB) (time elapsed: a minute) (per-host) I0416 05:03:35.714957 131669279376960 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 49.828418s. I0416 05:03:36.174646 131669279376960 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 05:03:36.628531 131669279376960 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0416 05:03:36.629208 131669279376960 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.621573s. 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_03_dropout/checkpoints/9/items I0416 05:03:36.629859 131669279376960 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_03_dropout/checkpoints/9/items I0416 05:03:36.861270 131669279376960 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_03_dropout/checkpoints/9 I0416 05:03:37.531314 131669279376960 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_03_dropout/checkpoints/9`. I0416 05:03:37.531916 131669279376960 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 62.979423s. directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_033532/nnx_feat_nnx_trainstate_and_training_loop_20260416_033532_03_dropout/checkpoints/9 I0416 05:03:37.532018 131669279376960 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 51.645481s. I0416 05:03:37.532195 131669340194368 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0416 05:03:37.532294 131669340194368 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0416 05:03:37.532354 131669340194368 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts... I0416 05:03:37.532401 131669340194368 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts. I0416 05:03:37.532535 131784275049600 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 05:03:37.532681 131784275049600 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0416 05:03:37.533261 131784275049600 metric_logger.py:185] completed step: 9, seconds: 0.063, TFLOP/s/device: 12.701, Tokens/s/device: 2029.909, total_weights: 948, loss: 9.098 Per train step: Total TFLOPs: 0.80 split as 99.60% learnable weight flops and 0.40% attention flops