2026-04-16 02:10:12.216965: 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 02:10:12.332449 128891845160064 max_utils.py:238] Skipping jax distributed system due to skip_jax_distributed_system=True flag. I0416 02:10:51.038394 128891845160064 max_utils.py:800] System Information: Jax Version: 0.9.2 I0416 02:10:51.038656 128891845160064 max_utils.py:801] System Information: Jaxlib Version: 0.9.2 I0416 02:10:51.038707 128891845160064 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 02:10:51.038736 128891845160064 train_utils.py:364] WARNING: 'dataset_path' might be pointing your local file system I0416 02:10:51.038919 128891845160064 train.py:812] [DECOUPLED NO-OP] skipping cloud diagnostics wrapper. W0416 02:10:51.140763 3528710 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 02:10:51.581736 128891845160064 maxtext_utils.py:1687] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1) I0416 02:10:51.682729 128891845160064 checkpointing.py:688] Setting up checkpoint logger... I0416 02:10:51.682847 128891845160064 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True I0416 02:10:51.682929 128891845160064 pytree_checkpoint_handler.py:577] save_device_host_concurrent_bytes=None I0416 02:10:51.683194 128891845160064 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 0x753961bf4ef0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB) I0416 02:10:54.045956 128891845160064 checkpointing.py:266] Enabling policy for fixed interval checkpointing. I0416 02:10:54.046230 128891845160064 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 0x7532e1d1b7d0>}, handler_registry=None I0416 02:10:54.046645 128891845160064 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7532e1d1b7d0>` 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 02:10:54.046691 128891845160064 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7532e1d998b0>` 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 02:10:54.046721 128891845160064 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 0x7532e1d1b7d0>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7532e1d1b7d0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7532e1d998b0>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7532e1d998b0>}). I0416 02:10:54.047094 128891845160064 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.28 I0416 02:10:54.047165 128891845160064 async_checkpointer.py:177] [process=0][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>.<lambda> at 0x7532e2989940> timeout: 600 secs and primary_host=0 for async checkpoint writes I0416 02:10:54.183748 128891845160064 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_03_dropout/checkpoints I0416 02:10:54.184020 128891845160064 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_03_dropout/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7532e1d1bbc0> I0416 02:10:54.184132 128891845160064 checkpointing.py:302] Checkpoint manager created! I0416 02:10:54.264359 128891845160064 dataset_info.py:707] Load dataset info from tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0 I0416 02:10:54.267564 128891845160064 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 02:10:54.323885 128891845160064 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 02:10:54.356197 128891845160064 tokenizer.py:245] Tokenizer path: src/maxtext/assets/tokenizers/tokenizer.llama2 I0416 02:10:54.356269 128891845160064 tokenizer.py:187] Loading sentencepiece tokenizer: src/maxtext/assets/tokenizers/tokenizer.llama2 I0416 02:10:55.407384 128891845160064 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint I0416 02:10:55.407501 128891845160064 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint. W0416 02:10:55.519602 3528710 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 02:10:55.735494 128891845160064 nnx_decoders.py:465] nnx_decoders/carry Logical: bfloat16[8,128,2048]........................................ ('activation_batch', 'activation_norm_length', 'activation_embed'). I0416 02:10:55.735596 128891845160064 nnx_decoders.py:465] nnx_decoders/carry Physical: bfloat16[8,128,2048]........................................ ('fsdp', None, None). I0416 02:10:55.740238 128891845160064 nnx_decoders.py:465] Unknown Logical: bfloat16[8,128,2048]........................................ ('activation_batch', 'activation_norm_length', 'activation_embed'). I0416 02:10:55.740287 128891845160064 nnx_decoders.py:465] Unknown Physical: bfloat16[8,128,2048]........................................ ('fsdp', None, None). I0416 02:10:55.755437 128891845160064 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,128,2048]........................................ ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0416 02:10:55.755492 128891845160064 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,128,2048]........................................ ('fsdp', None, None). I0416 02:10:55.769960 128891845160064 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,128,2048]........................................ ('activation_batch', 'activation_attn_length', 'activation_attn_embed'). I0416 02:10:55.770010 128891845160064 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,128,2048]........................................ ('fsdp', None, None). I0416 02:10:55.791952 128891845160064 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 02:10:55.792017 128891845160064 attentions.py:1154] attentions/query Physical: bfloat16[8,128,16,128]...................................... ('fsdp', None, None, None). I0416 02:10:55.806709 128891845160064 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 02:10:55.806761 128891845160064 attentions.py:1155] attentions/key Physical: bfloat16[8,128,16,128]...................................... ('fsdp', None, None, None). I0416 02:10:55.821372 128891845160064 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 02:10:55.821425 128891845160064 attentions.py:1156] attentions/value Physical: bfloat16[8,128,16,128]...................................... ('fsdp', None, None, None). I0416 02:10:55.849419 128891845160064 attentions.py:1197] attentions/out Logical: bfloat16[8,128,16,128]...................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv'). I0416 02:10:55.849483 128891845160064 attentions.py:1197] attentions/out Physical: bfloat16[8,128,16,128]...................................... ('fsdp', None, None, None). I0416 02:10:55.873165 128891845160064 linears.py:525] linears/x Logical: bfloat16[8,128,7168]........................................ ('activation_batch', 'activation_length', 'activation_mlp'). I0416 02:10:55.873227 128891845160064 linears.py:525] linears/x Physical: bfloat16[8,128,7168]........................................ ('fsdp', None, None). I0416 02:10:59.898843 128891845160064 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 02:10:59.899761 128891845160064 max_utils.py:194] tensorboardX not available; using no-op SummaryWriter. I0416 02:10:59.901324 128891845160064 metric_logger.py:289] number parameters: 1.104 billion I0416 02:11:06.494982 128891845160064 checkpointing.py:794] Waiting for step 0 to finish before checkpoint... I0416 02:11:06.567722 128891845160064 checkpointing.py:798] Waited 0.0727226734161377 seconds for step 0 to finish before starting checkpointing. I0416 02:11:06.568215 128891845160064 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0416 02:11:06.568385 128891845160064 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 0 I0416 02:11:06.568794 128891845160064 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_03_dropout/checkpoints/0. I0416 02:11:06.650506 128891845160064 signaling_client.py:373] Using ThreadSafeKeyValueSignalingClient I0416 02:11:06.754510 128776979613248 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_03_dropout/checkpoints/0 I0416 02:11:06.765352 128891845160064 jax_array_handlers.py:347] Scheduling D2H of 69 prioritized jax.Array. I0416 02:11:06.765452 128891845160064 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 02:11:07.420736 128776969127488 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_03_dropout/checkpoints/0/items W0416 02:11:07.531484 3528710 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 02:11:07.547441 3528710 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 02:11:07.569928 128776939767360 checkpoint.py:188] Wrote Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776305467330366141, 'commit_timestamp_nsecs': None, 'custom_metadata': {}}, json={"item_handlers": null, "metrics": {}, "performance_metrics": {}, "init_timestamp_nsecs": 1776305467330366141, "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_03_dropout/checkpoints/0/_CHECKPOINT_METADATA W0416 02:11:07.570362 3528710 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 02:11:07.578300 3528710 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 02:11:07.583899 3528710 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 02:11:07.589225 3528710 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 02:11:07.594406 3528710 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 02:11:07.599765 3528710 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 02:11:07.972681 3531785 google_auth_provider.cc:149] Using credentials at ~/.config/gcloud/application_default_credentials.json I0416 02:11:07.972753 3531785 google_auth_provider.cc:156] Using OAuth2 AuthProvider I0416 02:11:08.447835 128891845160064 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 1.683527s I0416 02:11:08.454287 128891845160064 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 6.848 GiB/s (total gbytes: 12.3 GiB) (time elapsed: a second) (per-host) I0416 02:11:08.454353 128891845160064 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 1.802137s (batch_requests_ready=0.103817s, total_serialization_initiated=1.691985s, others=0.006335s) I0416 02:11:08.454434 128891845160064 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 1.803347s (all_items=0.000019s, per_item={'items': '0.00001907'}, temp_paths=1.803328) I0416 02:11:08.456011 128776866367040 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0416 02:11:08.456132 128891845160064 async_checkpointer.py:561] Finished blocking save. Time taken: 1.887702s. 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_03_dropout/checkpoints/0. I0416 02:11:08.456342 128891845160064 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize I0416 02:11:08.456507 128776990099008 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0416 02:11:08.456607 128891845160064 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_03_dropout/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776305466.5682023, 'wait_for_prev_duration_secs': 4.029273986816406e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776305466.5684087, 'checkpointer_blocking_duration_secs': 1.8878591060638428, 'get_old_steps_start_time': 1776305468.4562867, 'get_old_steps_duration_secs': 2.0265579223632812e-05, 'checkpoint_manager_blocking_start_time': 1776305466.5681152, 'checkpoint_manager_blocking_duration_secs': 1.888465166091919} I0416 02:11:08.456730 128891845160064 checkpointing.py:409] Started an asynchronous checkpoint save for step 0 I0416 02:11:08.456779 128891845160064 max_utils.py:750] Memstats: After params initialized: I0416 02:11:08.456836 128891845160064 max_utils.py:756] Using (GB) 1.56 / 31.25 (4.992000%) on TPU_0(process=0,(0,0,0,0)) I0416 02:11:08.456860 128891845160064 max_utils.py:756] Using (GB) 1.56 / 31.25 (4.992000%) on TPU_1(process=0,(1,0,0,0)) I0416 02:11:08.456880 128891845160064 max_utils.py:756] Using (GB) 1.56 / 31.25 (4.992000%) on TPU_2(process=0,(0,1,0,0)) I0416 02:11:08.456901 128891845160064 max_utils.py:756] Using (GB) 1.56 / 31.25 (4.992000%) on TPU_3(process=0,(1,1,0,0)) I0416 02:11:08.456918 128891845160064 max_utils.py:756] Using (GB) 1.56 / 31.25 (4.992000%) on TPU_4(process=0,(0,2,0,0)) I0416 02:11:08.456935 128891845160064 max_utils.py:756] Using (GB) 1.56 / 31.25 (4.992000%) on TPU_5(process=0,(1,2,0,0)) I0416 02:11:08.456951 128891845160064 max_utils.py:756] Using (GB) 1.56 / 31.25 (4.992000%) on TPU_6(process=0,(0,3,0,0)) I0416 02:11:08.456967 128891845160064 max_utils.py:756] Using (GB) 1.56 / 31.25 (4.992000%) on TPU_7(process=0,(1,3,0,0)) W0416 02:11:08.463532 3528710 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 02:11:08.469410 3528710 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. W0416 02:11:08.474427 3528710 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions. I0416 02:11:08.852660 128891845160064 metric_logger.py:185] completed step: 0, seconds: 6.592, TFLOP/s/device: 0.121, Tokens/s/device: 19.417, total_weights: 963, loss: 10.836 I0416 02:11:08.853636 128891845160064 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_03_dropout/tensorboard/' I0416 02:11:08.910582 128891845160064 metric_logger.py:185] completed step: 1, seconds: 2.353, TFLOP/s/device: 0.340, Tokens/s/device: 54.396, total_weights: 945, loss: 10.847 I0416 02:11:08.973536 128891845160064 metric_logger.py:185] completed step: 2, seconds: 0.022, TFLOP/s/device: 36.500, Tokens/s/device: 5833.561, total_weights: 962, loss: 10.296 I0416 02:11:09.036479 128891845160064 metric_logger.py:185] completed step: 3, seconds: 0.050, TFLOP/s/device: 15.992, Tokens/s/device: 2555.962, total_weights: 975, loss: 9.778 I0416 02:11:09.485493 128776761509440 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_03_dropout/checkpoints/0/items/array_metadatas/process_0 I0416 02:11:20.690132 128891845160064 metric_logger.py:185] completed step: 4, seconds: 0.064, TFLOP/s/device: 12.601, Tokens/s/device: 2014.004, total_weights: 962, loss: 9.422 I0416 02:11:20.701089 128891845160064 metric_logger.py:185] completed step: 5, seconds: 0.063, TFLOP/s/device: 12.785, Tokens/s/device: 2043.357, total_weights: 958, loss: 9.222 I0416 02:11:20.761393 128891845160064 metric_logger.py:185] completed step: 6, seconds: 11.653, TFLOP/s/device: 0.069, Tokens/s/device: 10.984, total_weights: 930, loss: 9.362 I0416 02:11:20.824441 128891845160064 metric_logger.py:185] completed step: 7, seconds: 0.008, TFLOP/s/device: 99.860, Tokens/s/device: 15960.100, total_weights: 935, loss: 9.333 I0416 02:11:20.887665 128891845160064 metric_logger.py:185] completed step: 8, seconds: 0.062, TFLOP/s/device: 12.997, Tokens/s/device: 2077.281, total_weights: 930, loss: 9.560 I0416 02:11:20.951709 128891845160064 checkpointing.py:794] Waiting for step 9 to finish before checkpoint... I0416 02:11:20.952934 128891845160064 checkpointing.py:798] Waited 0.0012352466583251953 seconds for step 9 to finish before starting checkpointing. I0416 02:11:20.953945 128891845160064 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0416 02:11:40.145240 128776887338560 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 31.690177s (commit=31.276163s, array_metadata_write=0.414014s) I0416 02:11:40.146485 128776866367040 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 377.283 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 33 seconds) (per-host) I0416 02:11:40.146599 128776866367040 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 31.690404s. I0416 02:11:40.363840 128776866367040 checkpoint.py:228] Read Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776305467330366141, '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_03_dropout/checkpoints/0/_CHECKPOINT_METADATA I0416 02:11:40.547642 128776866367040 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 02:11:40.747581 128776939767360 checkpoint.py:247] Updated Metadata={'item_handlers': {'items': 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler'}, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776305467330366141, '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_03_dropout/checkpoints/0/_CHECKPOINT_METADATA I0416 02:11:40.960404 128776866367040 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0416 02:11:40.960616 128776866367040 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.551099s. 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_03_dropout/checkpoints/0/items I0416 02:11:40.961462 128776866367040 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_03_dropout/checkpoints/0/items I0416 02:11:41.204365 128776866367040 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_03_dropout/checkpoints/0 I0416 02:11:41.879523 128776866367040 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_03_dropout/checkpoints/0`. I0416 02:11:41.880280 128776866367040 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 35.311857s. directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_03_dropout/checkpoints/0 I0416 02:11:41.880367 128776866367040 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 33.424175s. I0416 02:11:41.880582 128776990099008 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0416 02:11:41.880710 128776990099008 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0416 02:11:41.880772 128776990099008 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts... I0416 02:11:41.880821 128776990099008 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts. I0416 02:11:41.881007 128891845160064 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 02:11:41.881166 128891845160064 checkpoint_manager.py:1441] Waiting for previous save to complete took 20.927230 seconds. If this number is high, consider checkpointing less frequently. I0416 02:11:41.881965 128891845160064 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 9 I0416 02:11:41.882299 128891845160064 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_03_dropout/checkpoints/9. I0416 02:11:42.050086 128776990099008 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_03_dropout/checkpoints/9 I0416 02:11:42.068699 128891845160064 jax_array_handlers.py:347] Scheduling D2H of 69 prioritized jax.Array. I0416 02:11:42.068812 128891845160064 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 02:11:42.751920 128776855881280 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_03_dropout/checkpoints/9/items I0416 02:11:53.804903 128891845160064 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 11.737280s I0416 02:11:53.812145 128891845160064 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 1.042 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 11 seconds) (per-host) I0416 02:11:53.812211 128891845160064 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 11.848610s (batch_requests_ready=0.096206s, total_serialization_initiated=11.745353s, others=0.007052s) I0416 02:11:53.812301 128891845160064 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 11.849198s (all_items=0.000019s, per_item={'items': '0.00001907'}, temp_paths=11.849179) I0416 02:11:53.814082 128776887338560 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started. I0416 02:11:53.814169 128891845160064 async_checkpointer.py:561] Finished blocking save. Time taken: 11.932153s. 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_03_dropout/checkpoints/9. I0416 02:11:53.814402 128891845160064 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize I0416 02:11:53.814558 128776866367040 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save. I0416 02:11:53.814646 128891845160064 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_03_dropout/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776305480.953909, 'wait_for_prev_duration_secs': 20.92723035812378, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776305501.8819911, 'checkpointer_blocking_duration_secs': 11.932294368743896, 'get_old_steps_start_time': 1776305513.8143172, 'get_old_steps_duration_secs': 3.504753112792969e-05, 'checkpoint_manager_blocking_start_time': 1776305480.9538627, 'checkpoint_manager_blocking_duration_secs': 32.860753297805786} I0416 02:11:53.814766 128891845160064 checkpointing.py:409] Started an asynchronous checkpoint save for step 9 I0416 02:11:53.814802 128891845160064 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete. I0416 02:11:54.566683 128776918795840 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_03_dropout/checkpoints/9/items/array_metadatas/process_0 I0416 02:12:23.253756 128776990099008 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 29.440723s (commit=29.019390s, array_metadata_write=0.421333s) I0416 02:12:23.255085 128776887338560 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 306.039 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 41 seconds) (per-host) I0416 02:12:23.255209 128776887338560 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 29.441074s. I0416 02:12:23.651088 128776887338560 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 02:12:24.057323 128776887338560 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389). I0416 02:12:24.058093 128776887338560 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.549864s. 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_03_dropout/checkpoints/9/items I0416 02:12:24.058845 128776887338560 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_03_dropout/checkpoints/9/items I0416 02:12:24.291692 128776887338560 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_03_dropout/checkpoints/9 I0416 02:12:24.947189 128776887338560 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_03_dropout/checkpoints/9`. I0416 02:12:24.947932 128776887338560 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 43.065929s. directory=gs://wanglance-maxtext/nnx_ckpt_feat_nnx_trainstate_and_training_loop_20260416_004836/nnx_feat_nnx_trainstate_and_training_loop_20260416_004836_03_dropout/checkpoints/9 I0416 02:12:24.948016 128776887338560 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 31.133883s. I0416 02:12:24.948169 128776866367040 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save. I0416 02:12:24.948221 128776866367040 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save. I0416 02:12:24.948278 128776866367040 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts... I0416 02:12:24.948323 128776866367040 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts. I0416 02:12:24.948451 128891845160064 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 02:12:24.948626 128891845160064 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning. I0416 02:12:24.949558 128891845160064 metric_logger.py:185] completed step: 9, seconds: 0.063, TFLOP/s/device: 12.782, Tokens/s/device: 2042.901, 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