MaxView

2026-04-16 02:33:35.538573: 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 02:33:35.656980 136660968864896 max_utils.py:238] Skipping jax distributed system due to skip_jax_distributed_system=True flag.
I0416 02:34:06.834790 136660968864896 max_utils.py:800] System Information: Jax Version: 0.9.2
I0416 02:34:06.834907 136660968864896 max_utils.py:801] System Information: Jaxlib Version: 0.9.2
I0416 02:34:06.834946 136660968864896 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 02:34:06.834975 136660968864896 train_utils.py:364] WARNING: 'dataset_path' might be pointing your local file system
I0416 02:34:06.835073 136660968864896 train.py:812] [DECOUPLED NO-OP] skipping cloud diagnostics wrapper.
I0416 02:34:07.352844 136660968864896 maxtext_utils.py:1687] Num_devices: 8, shape (1, 1, 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1)
I0416 02:34:07.451310 136660968864896 checkpointing.py:688] Setting up checkpoint logger...
I0416 02:34:07.451417 136660968864896 checkpointing.py:234] Creating checkpoint manager with ocdbt=True and zarr3=True
I0416 02:34:07.451462 136660968864896 pytree_checkpoint_handler.py:577] save_device_host_concurrent_bytes=None
I0416 02:34:07.451653 136660968864896 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 0x7c4a459d3cb0>, enable_pinned_host_transfer=False, save_concurrent_bytes: 96000000000 (89.4 GiB), restore_concurrent_bytes: 96000000000 (89.4 GiB)
I0416 02:34:09.803745 136660968864896 checkpointing.py:266] Enabling policy for fixed interval checkpointing.
I0416 02:34:09.803943 136660968864896 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 0x7c43c8bc8f80>}, handler_registry=None
I0416 02:34:09.804223 136660968864896 composite_checkpoint_handler.py:237] Deferred registration for item: "items". Adding handler `<orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7c43c8bc8f80>` 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 02:34:09.804268 136660968864896 composite_checkpoint_handler.py:237] Deferred registration for item: "metrics". Adding handler `<orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7c43c8bc9d00>` 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 02:34:09.804296 136660968864896 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 0x7c43c8bc8f80>, ('items', <class 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeRestoreArgs'>): <orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler object at 0x7c43c8bc8f80>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonSaveArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7c43c8bc9d00>, ('metrics', <class 'orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonRestoreArgs'>): <orbax.checkpoint._src.handlers.json_checkpoint_handler.JsonCheckpointHandler object at 0x7c43c8bc9d00>}).
I0416 02:34:09.804615 136660968864896 abstract_checkpointer.py:35] orbax-checkpoint version: 0.11.28
I0416 02:34:09.804666 136660968864896 async_checkpointer.py:177] [process=0][thread=MainThread] Using barrier_sync_fn: <function get_barrier_sync_fn.<locals>.<lambda> at 0x7c43c9385940> timeout: 600 secs and primary_host=0 for async checkpoint writes
I0416 02:34:09.929421 136660968864896 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_false/checkpoints
I0416 02:34:09.929666 136660968864896 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_false/checkpoints: <orbax.checkpoint.checkpoint_manager.CheckpointManager object at 0x7c43c8bc8770>
I0416 02:34:09.929746 136660968864896 checkpointing.py:302] Checkpoint manager created!
I0416 02:34:10.009035 136660968864896 dataset_info.py:707] Load dataset info from tests/assets/local_datasets/c4_en_dataset_minimal/c4/en/3.1.0
I0416 02:34:10.012209 136660968864896 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 02:34:10.066480 136660968864896 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 02:34:10.095420 136660968864896 tokenizer.py:245] Tokenizer path: src/maxtext/assets/tokenizers/tokenizer.llama2
I0416 02:34:10.095489 136660968864896 tokenizer.py:187] Loading sentencepiece tokenizer: src/maxtext/assets/tokenizers/tokenizer.llama2
I0416 02:34:11.146189 136660968864896 checkpointing.py:578] checkpoint manager exists so trying to load this run's existing checkpoint
I0416 02:34:11.146313 136660968864896 checkpointing.py:676] No existing checkpoints found, not restoring checkpoint.
W0416 02:34:11.254838 3561516 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 02:34:11.458863 136660968864896 nnx_decoders.py:465] nnx_decoders/carry Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0416 02:34:11.458954 136660968864896 nnx_decoders.py:465] nnx_decoders/carry Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 02:34:11.465111 136660968864896 nnx_decoders.py:465] Unknown Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_norm_length', 'activation_embed').
I0416 02:34:11.465159 136660968864896 nnx_decoders.py:465] Unknown Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 02:34:11.480262 136660968864896 attentions.py:1088] attentions/inputs_q Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0416 02:34:11.480315 136660968864896 attentions.py:1088] attentions/inputs_q Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 02:34:11.494773 136660968864896 attentions.py:1089] attentions/inputs_kv Logical: bfloat16[8,2048,2048]....................................... ('activation_batch', 'activation_attn_length', 'activation_attn_embed').
I0416 02:34:11.494827 136660968864896 attentions.py:1089] attentions/inputs_kv Physical: bfloat16[8,2048,2048]....................................... ('fsdp', None, None).
I0416 02:34:11.516777 136660968864896 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 02:34:11.516837 136660968864896 attentions.py:1154] attentions/query Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 02:34:11.531563 136660968864896 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 02:34:11.531617 136660968864896 attentions.py:1155] attentions/key Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 02:34:11.546194 136660968864896 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 02:34:11.546245 136660968864896 attentions.py:1156] attentions/value Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 02:34:11.574582 136660968864896 attentions.py:1197] attentions/out Logical: bfloat16[8,2048,16,128]..................................... ('activation_batch', 'activation_attn_length', 'activation_heads', 'activation_kv').
I0416 02:34:11.574659 136660968864896 attentions.py:1197] attentions/out Physical: bfloat16[8,2048,16,128]..................................... ('fsdp', None, None, None).
I0416 02:34:11.592790 136660968864896 linears.py:525] linears/x Logical: bfloat16[8,2048,7168]....................................... ('activation_batch', 'activation_length', 'activation_mlp').
I0416 02:34:11.592849 136660968864896 linears.py:525] linears/x Physical: bfloat16[8,2048,7168]....................................... ('fsdp', None, None).
W0416 02:34:11.956012 3561516 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 02:34:12.071267 136660968864896 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 02:34:12.071826 136660968864896 max_utils.py:194] tensorboardX not available; using no-op SummaryWriter.
I0416 02:34:12.073151 136660968864896 metric_logger.py:289] number parameters: 1.104 billion
W0416 02:34:14.992520 3561516 pjrt_executable.cc:642] Assume version compatibility. PjRt-IFRT does not track XLA executable versions.
I0416 02:34:15.128645 136660968864896 checkpointing.py:794] Waiting for step 0 to finish before checkpoint...
I0416 02:34:15.248533 136660968864896 checkpointing.py:798] Waited 0.1198725700378418 seconds for step 0 to finish before starting checkpointing.
I0416 02:34:15.248997 136660968864896 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0416 02:34:15.249171 136660968864896 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 0
I0416 02:34:15.249573 136660968864896 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_false/checkpoints/0.
I0416 02:34:15.337477 136660968864896 signaling_client.py:373] Using ThreadSafeKeyValueSignalingClient
I0416 02:34:15.429776 136547800188480 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_false/checkpoints/0
I0416 02:34:15.443884 136660968864896 jax_array_handlers.py:347] Scheduling D2H of 69 prioritized jax.Array.
I0416 02:34:15.443982 136660968864896 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 02:34:16.065104 136547789702720 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_false/checkpoints/0/items
I0416 02:34:16.216634 136547741468224 checkpoint.py:188] Wrote Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776306855981553551, 'commit_timestamp_nsecs': None, 'custom_metadata': {}}, json={"item_handlers": null, "metrics": {}, "performance_metrics": {}, "init_timestamp_nsecs": 1776306855981553551, "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_false/checkpoints/0/_CHECKPOINT_METADATA
I0416 02:34:16.629632 3564231 google_auth_provider.cc:149] Using credentials at ~/.config/gcloud/application_default_credentials.json
I0416 02:34:16.629703 3564231 google_auth_provider.cc:156] Using OAuth2 AuthProvider
I0416 02:34:16.789077 136660968864896 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 1.346228s
I0416 02:34:16.789726 136660968864896 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 8.508 GiB/s (total gbytes: 12.3 GiB) (time elapsed: a second) (per-host)
I0416 02:34:16.789786 136660968864896 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 1.450587s (batch_requests_ready=0.095356s, total_serialization_initiated=1.354743s, others=0.000488s)
I0416 02:34:16.789871 136660968864896 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 1.451539s (all_items=0.000021s, per_item={'items': '0.00002074'}, temp_paths=1.451518)
I0416 02:34:16.796981 136547810674240 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started.
I0416 02:34:16.797099 136660968864896 async_checkpointer.py:561] Finished blocking save. Time taken: 1.547881s. 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_false/checkpoints/0.
I0416 02:34:16.797300 136660968864896 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=0] Starting CheckpointManager Save Finalize thread=save_finalize
I0416 02:34:16.797549 136547668067904 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save.
I0416 02:34:16.797679 136660968864896 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_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776306855.248984, 'wait_for_prev_duration_secs': 5.173683166503906e-05, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776306855.249193, 'checkpointer_blocking_duration_secs': 1.5480232238769531, 'get_old_steps_start_time': 1776306856.7972414, 'get_old_steps_duration_secs': 2.1696090698242188e-05, 'checkpoint_manager_blocking_start_time': 1776306855.2488985, 'checkpoint_manager_blocking_duration_secs': 1.5487539768218994}
I0416 02:34:16.797834 136660968864896 checkpointing.py:409] Started an asynchronous checkpoint save for step 0
I0416 02:34:16.797915 136660968864896 max_utils.py:750] 
Memstats: After params initialized:
I0416 02:34:16.797969 136660968864896 max_utils.py:756] 	Using (GB) 1.59 / 31.25 (5.088000%) on TPU_0(process=0,(0,0,0,0))
I0416 02:34:16.797996 136660968864896 max_utils.py:756] 	Using (GB) 1.59 / 31.25 (5.088000%) on TPU_1(process=0,(1,0,0,0))
I0416 02:34:16.798016 136660968864896 max_utils.py:756] 	Using (GB) 1.59 / 31.25 (5.088000%) on TPU_2(process=0,(0,1,0,0))
I0416 02:34:16.798036 136660968864896 max_utils.py:756] 	Using (GB) 1.59 / 31.25 (5.088000%) on TPU_3(process=0,(1,1,0,0))
I0416 02:34:16.798072 136660968864896 max_utils.py:756] 	Using (GB) 1.59 / 31.25 (5.088000%) on TPU_4(process=0,(0,2,0,0))
I0416 02:34:16.798089 136660968864896 max_utils.py:756] 	Using (GB) 1.59 / 31.25 (5.088000%) on TPU_5(process=0,(1,2,0,0))
I0416 02:34:16.798106 136660968864896 max_utils.py:756] 	Using (GB) 1.59 / 31.25 (5.088000%) on TPU_6(process=0,(0,3,0,0))
I0416 02:34:16.798122 136660968864896 max_utils.py:756] 	Using (GB) 1.59 / 31.25 (5.088000%) on TPU_7(process=0,(1,3,0,0))
I0416 02:34:17.182525 136660968864896 metric_logger.py:185] completed step: 0, seconds: 3.054, TFLOP/s/device: 4.449, Tokens/s/device: 670.546, total_weights: 13328, loss: 10.880
I0416 02:34:17.183484 136660968864896 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_false/tensorboard/'
I0416 02:34:17.295743 136660968864896 metric_logger.py:185] completed step: 1, seconds: 2.050, TFLOP/s/device: 6.628, Tokens/s/device: 999.015, total_weights: 12332, loss: 10.862
I0416 02:34:17.413093 136660968864896 metric_logger.py:185] completed step: 2, seconds: 0.023, TFLOP/s/device: 587.729, Tokens/s/device: 88588.978, total_weights: 15161, loss: 9.926
I0416 02:34:17.530519 136660968864896 metric_logger.py:185] completed step: 3, seconds: 0.104, TFLOP/s/device: 130.780, Tokens/s/device: 19712.589, total_weights: 13327, loss: 9.396
I0416 02:34:17.551350 136547689039424 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_false/checkpoints/0/items/array_metadatas/process_0
I0416 02:34:36.796022 136660968864896 metric_logger.py:185] completed step: 4, seconds: 0.118, TFLOP/s/device: 115.625, Tokens/s/device: 17428.304, total_weights: 11939, loss: 9.005
I0416 02:34:36.806605 136660968864896 metric_logger.py:185] completed step: 5, seconds: 0.117, TFLOP/s/device: 115.892, Tokens/s/device: 17468.441, total_weights: 15502, loss: 8.861
I0416 02:34:36.921927 136660968864896 metric_logger.py:185] completed step: 6, seconds: 19.265, TFLOP/s/device: 0.705, Tokens/s/device: 106.308, total_weights: 13864, loss: 8.738
I0416 02:34:37.039446 136660968864896 metric_logger.py:185] completed step: 7, seconds: 0.008, TFLOP/s/device: 1811.134, Tokens/s/device: 272993.868, total_weights: 12988, loss: 8.651
I0416 02:34:37.157123 136660968864896 metric_logger.py:185] completed step: 8, seconds: 0.117, TFLOP/s/device: 116.191, Tokens/s/device: 17513.554, total_weights: 13820, loss: 8.671
I0416 02:34:37.275453 136660968864896 checkpointing.py:794] Waiting for step 9 to finish before checkpoint...
I0416 02:34:37.276620 136660968864896 checkpointing.py:798] Waited 0.0011832714080810547 seconds for step 9 to finish before starting checkpointing.
I0416 02:34:37.277489 136660968864896 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=0][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0416 02:34:44.150395 136547678553664 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 27.354010s (commit=26.858975s, array_metadata_write=0.495035s)
I0416 02:34:44.151566 136547810674240 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 438.590 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 28 seconds) (per-host)
I0416 02:34:44.151621 136547810674240 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 27.354476s.
I0416 02:34:44.410143 136547810674240 checkpoint.py:228] Read Metadata={'item_handlers': None, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776306855981553551, '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_false/checkpoints/0/_CHECKPOINT_METADATA
I0416 02:34:44.595908 136547810674240 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 02:34:44.787967 136547741468224 checkpoint.py:247] Updated Metadata={'item_handlers': {'items': 'orbax.checkpoint._src.handlers.pytree_checkpoint_handler.PyTreeCheckpointHandler'}, 'metrics': {}, 'performance_metrics': {}, 'init_timestamp_nsecs': 1776306855981553551, '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_false/checkpoints/0/_CHECKPOINT_METADATA
I0416 02:34:45.010524 136547810674240 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389).
I0416 02:34:45.011252 136547810674240 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.557292s. 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_false/checkpoints/0/items
I0416 02:34:45.012022 136547810674240 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_false/checkpoints/0/items
I0416 02:34:45.254382 136547810674240 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_false/checkpoints/0
I0416 02:34:45.902917 136547810674240 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_false/checkpoints/0`.
I0416 02:34:45.903667 136547810674240 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 30.654463s. 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_false/checkpoints/0
I0416 02:34:45.903746 136547810674240 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 29.106602s.
I0416 02:34:45.903979 136547668067904 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save.
I0416 02:34:45.904124 136547668067904 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save.
I0416 02:34:45.904181 136547668067904 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is syncing with other hosts...
I0416 02:34:45.904229 136547668067904 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=0] CheckpointManager Save Finalize is done on all hosts.
I0416 02:34:45.904402 136660968864896 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 02:34:45.904545 136660968864896 checkpoint_manager.py:1441] Waiting for previous save to complete took 8.627053 seconds. If this number is high, consider checkpointing less frequently.
I0416 02:34:45.905639 136660968864896 checkpoint_manager.py:1501] [process=0] Saving checkpoint at step 9
I0416 02:34:45.905928 136660968864896 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_false/checkpoints/9.
I0416 02:34:46.093230 136660968864896 jax_array_handlers.py:347] Scheduling D2H of 69 prioritized jax.Array.
I0416 02:34:46.093336 136660968864896 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 02:34:46.099088 136547668067904 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_false/checkpoints/9
I0416 02:34:46.800530 136547647096384 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_false/checkpoints/9/items
I0416 02:34:56.962533 136660968864896 base_pytree_checkpoint_handler.py:153] [process=0][thread=MainThread] Initiated "orbax.checkpoint._src.serialization.jax_array_handlers.ArrayHandler".serialize. Time taken: 10.870368s
I0416 02:34:56.968800 136660968864896 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/blocking_gbytes_per_sec: 1.124 GiB/s (total gbytes: 12.3 GiB) (time elapsed: 10 seconds) (per-host)
I0416 02:34:56.968873 136660968864896 base_pytree_checkpoint_handler.py:732] [process=0][thread=MainThread] Initiated Pytree async_save. Time taken: 10.974669s (batch_requests_ready=0.090427s, total_serialization_initiated=10.878095s, others=0.006147s)
I0416 02:34:56.968949 136660968864896 composite_checkpoint_handler.py:715] [process=0][thread=MainThread] Initiated CompositeCheckpointHandler.async_save. Time taken: 10.975271s (all_items=0.000018s, per_item={'items': '0.00001764'}, temp_paths=10.975253)
I0416 02:34:56.970431 136547710010944 async_checkpointer.py:79] [process=0][thread=async_save] Background save thread started.
I0416 02:34:56.970522 136660968864896 async_checkpointer.py:561] Finished blocking save. Time taken: 11.064839s. 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_false/checkpoints/9.
I0416 02:34:56.970712 136660968864896 checkpoint_manager.py:1549] [process=0][thread=MainThread][step=9] Starting CheckpointManager Save Finalize thread=save_finalize
I0416 02:34:56.970964 136547689039424 async_checkpointer.py:265] [process=0][thread=save_finalize] Waiting for background save thread=async_save.
I0416 02:34:56.971107 136660968864896 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_false/checkpoints', 'reached_preemption': False, 'preemption_received_at': None, 'synchronous': False, 'wait_for_prev_start_time': 1776306877.2774572, 'wait_for_prev_duration_secs': 8.627052545547485, 'time_between_consecutive_saves_sec': None, 'checkpointer_blocking_start_time': 1776306885.9056637, 'checkpointer_blocking_duration_secs': 11.064963102340698, 'get_old_steps_start_time': 1776306896.9706442, 'get_old_steps_duration_secs': 2.9087066650390625e-05, 'checkpoint_manager_blocking_start_time': 1776306877.2774098, 'checkpoint_manager_blocking_duration_secs': 19.693671703338623}
I0416 02:34:56.971228 136660968864896 checkpointing.py:409] Started an asynchronous checkpoint save for step 9
I0416 02:34:56.971262 136660968864896 checkpoint_manager.py:1994] [process=0][thread=MainThread][step=9][wait_until_finished] Waiting for Save Finalize thread (save_finalize) to complete.
I0416 02:34:57.676325 136547720496704 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_false/checkpoints/9/items/array_metadatas/process_0
I0416 02:35:30.585568 136547678553664 base_pytree_checkpoint_handler.py:1217] [process=0][thread=write_metadata_after_commits] Commit + Array metadata written. Time taken: 33.615949s (commit=33.189705s, array_metadata_write=0.426244s)
I0416 02:35:30.586704 136547710010944 base_pytree_checkpoint_handler.py:128] [process=0] /jax/checkpoint/write/gbytes_per_sec: 283.384 MiB/s (total gbytes: 12.3 GiB) (time elapsed: 44 seconds) (per-host)
I0416 02:35:30.586762 136547710010944 async_checkpointer.py:90] [process=0][thread=async_save] 3 Handler Commit operations completed. Time taken: 33.616197s.
I0416 02:35:31.018365 136547710010944 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 02:35:31.417406 136547710010944 ocdbt_utils.py:56] Param validation support for Zarr3 will be added later (b/362328389).
I0416 02:35:31.417622 136547710010944 base_pytree_checkpoint_handler.py:1342] [process=0][thread=async_save] Pytree save finalize (merge_ocdbt + ArrayMetadata validation) completed. Time taken: 0.552496s. 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_false/checkpoints/9/items
I0416 02:35:31.418396 136547710010944 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_false/checkpoints/9/items
I0416 02:35:31.657394 136547710010944 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_false/checkpoints/9
I0416 02:35:32.343859 136547710010944 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_false/checkpoints/9`.
I0416 02:35:32.344621 136547710010944 async_checkpointer.py:420] Finished async_save (blocking + background). Time taken: 46.438945s. 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_false/checkpoints/9
I0416 02:35:32.344707 136547710010944 async_checkpointer.py:144] [process=0][thread=async_save] Background save thread done. Time taken: 35.374142s.
I0416 02:35:32.344928 136547689039424 async_checkpointer.py:273] [process=0][thread=save_finalize] Done with waiting for background save thread=async_save.
I0416 02:35:32.345061 136547689039424 async_checkpointer.py:283] [process=0][thread=save_finalize] No errors found in background save thread=async_save.
I0416 02:35:32.345132 136547689039424 checkpoint_manager.py:2103] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is syncing with other hosts...
I0416 02:35:32.345174 136547689039424 checkpoint_manager.py:2112] [process=0][thread=save_finalize][step=9] CheckpointManager Save Finalize is done on all hosts.
I0416 02:35:32.345817 136660968864896 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 02:35:32.345973 136660968864896 checkpoint_manager.py:1983] [process=0][thread=MainThread][wait_until_finished] No Save Finalize thread to wait for. Returning.
I0416 02:35:32.346670 136660968864896 metric_logger.py:185] completed step: 9, seconds: 0.117, TFLOP/s/device: 116.257, Tokens/s/device: 17523.594, 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